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Journal articles on the topic 'Soil PLFA analysis'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Roslev, Peter, and Niels Iversen. "Radioactive Fingerprinting of Microorganisms That Oxidize Atmospheric Methane in Different Soils." Applied and Environmental Microbiology 65, no. 9 (1999): 4064–70. http://dx.doi.org/10.1128/aem.65.9.4064-4070.1999.

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ABSTRACT Microorganisms that oxidize atmospheric methane in soils were characterized by radioactive labelling with14CH4 followed by analysis of radiolabelled phospholipid ester-linked fatty acids (14C-PLFAs). The radioactive fingerprinting technique was used to compare active methanotrophs in soil samples from Greenland, Denmark, the United States, and Brazil. The 14C-PLFA fingerprints indicated that closely related methanotrophic bacteria were responsible for the oxidation of atmospheric methane in the soils. Significant amounts of labelled PLFAs produced by the unknown soil methanotrophs coe

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Johnsen, Anders R., Anne Winding, Ulrich Karlson, and Peter Roslev. "Linking of Microorganisms to Phenanthrene Metabolism in Soil by Analysis of 13C-Labeled Cell Lipids." Applied and Environmental Microbiology 68, no. 12 (2002): 6106–13. http://dx.doi.org/10.1128/aem.68.12.6106-6113.2002.

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ABSTRACT Phenanthrene-metabolizing soil microbial communities were characterized by examining mineralization of [14C]phenanthrene, by most-probable-number (MPN) counting, by 16S-23S spacer DNA analysis of the numerically dominant, culturable phenanthrene-degrading isolates, and by examining incorporation of [13C]phenanthrene-derived carbon into sterols and polar lipid fatty acids (PLFAs). An unpolluted agricultural soil, a roadside soil diffusely polluted with polycyclic aromatic hydrocarbons (PAHs), and two highly PAH-polluted soils from industrial sites were analyzed. Microbial phenanthrene

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Hanajík, Peter, Milan Zvarík, Hannu Fritze, Ivan Šimkovic, and Róbert Kanka. "Composition of microbial PLFAs and correlations with topsoil characteristics in the rare active travertine spring-fed fen." Ekológia (Bratislava) 35, no. 4 (2016): 295–308. http://dx.doi.org/10.1515/eko-2016-0024.

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Abstract We studied soil PLFAs composition and specific soil properties among transect of small-scale fen in Stankovany, Slovakia. The aim of this study was to determine potential differences in the microbial community structure of the fen transect and reveal correlations among PLFAs and specific soil characteristics. PCA analyses of 43 PLFAs showed a separation of the samples along the axis largely influenced by i14:0, 16:1ω5, br17:0, 10Me16:0, cy17:0, cy17:1, br18:0 and 10Me17:0. We measured a high correlation of sample scores and distance from fen edge (Kendall’s test τ = 0.857, P < 0.01

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Swallow, Mathew J. B., and Sylvie A. Quideau. "Evidence of rapid non-targeted effects of cycloheximide on soil bacteria using 13C-PLFA analysis." Canadian Journal of Soil Science 100, no. 4 (2020): 356–62. http://dx.doi.org/10.1139/cjss-2019-0152.

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Stable isotope probing of phospholipid fatty acids (PLFA-SIP) is useful when studying bacterial contributions to soil processes, and it is an effective way to separate fungal and bacterial activity by linking 13C enrichment to specific PLFAs. Distinguishing bacterial contributions to soil processes often employs selective inhibitors; however, studies demonstrating their efficacy when using PLFA-SIP are less common. Here, we determined the effect of the fungal inhibitor cycloheximide (4.8 mg g−1 dry soil) and the bacterial inhibitor bronopol (0.48 mg g−1 dry soil) on microbial communities white

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Hanson, Jessica R., Jennifer L. Macalady, David Harris, and Kate M. Scow. "Linking Toluene Degradation with Specific Microbial Populations in Soil." Applied and Environmental Microbiology 65, no. 12 (1999): 5403–8. http://dx.doi.org/10.1128/aem.65.12.5403-5408.1999.

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ABSTRACT Phospholipid fatty acid (PLFA) analysis of a soil microbial community was coupled with 13C isotope tracer analysis to measure the community’s response to addition of 35 μg of [13C]toluene ml of soil solution−1. After 119 h of incubation with toluene, 96% of the incorporated13C was detected in only 16 of the total 59 PLFAs (27%) extracted from the soil. Of the total 13C-enriched PLFAs, 85% were identical to the PLFAs contained in a toluene-metabolizing bacterium isolated from the same soil. In contrast, the majority of the soil PLFAs (91%) became labeled when the same soil was incubate

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Li, Xin, Yan Jiao, and Ming De Yang. "Diversity of Soil Microbial Communities under Different Soil Salinity Levels Analyzing by PLFA." Advanced Materials Research 955-959 (June 2014): 314–20. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.314.

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Under different soil salinity levels, diversity of soil microbial communities from Hetao irrigated land of Inner Mongolia was studied by phospholipid fatty acid (PLFA) analysis. The study found that PLFAs biomass in saline soil was significantly lower than those of strongly salinized soil and slight salinized soil. Microbes was bacteria-based from these soil. The bacterial PLFA loading in saline soil is significantly less than those of strongly salinized soil and slight salinized soil . Cluster analysis showed that changes had obviously taken place on soil microbial composition and quantity un

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Jiao, Hai Hua, Zhi Hui Bai, Ying Liu, Kai Wang, and Zhan Bin Huang. "Impact of Super Absorbent Polymer and Plants on Microbial Community and Petroleum Hydrocarbon Degradation in Contaminated Soil." Advanced Materials Research 807-809 (September 2013): 353–60. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.353.

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A greenhouse pot test, in which wheat, cabbage, spinach were cultivated separately in petroleum contaminated soil with and without super absorbent polymer (SAP), was conducted to evaluated the effect of plants and SAP on soil microbiological properties. phospholipid fatty acids (PLFAs) profiles were analyzed to reveal the microbial communities. As a measure of the functional activity of soil microbial community, the ratio of degraded to total petroleum hydrocarbon (TPH) in soil was estimated. The results indicated that SAP had an important effect on the soil microbial community and its degradi

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Jiao, Hai Hua, Kai Wang, Jian Gang Pan, De Cai Jin, Zhan Bin Huang, and Zhi Hui Bai. "Impact of Humics and Plants on Microbial Community and Petroleum Hydrocarbon Degradation in Contaminated Soil." Advanced Materials Research 726-731 (August 2013): 131–40. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.131.

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A greenhouse pot experiment, in which 3 different crops (wheat, cabbage, spinach) were cultivated in soil with and without humics (HS), was conducted to evaluate the effect of HS on soil microbiological properties. Phospholipid fatty acid (PLFA) profiles were analyzed to reveal the microbial community structure. As a measure of the functional activity of soil microbial community, the ratio of degraded to total petroleum hydrocarbon in soil was estimated. The results indicated that HS had an important effect on the soil microbial community and its functional activities. First, the principal com

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9

Guan, Huiling, Jiangwen Fan, Haiyan Zhang, and Warwick Harris. "Comparison of Drivers of Soil Microbial Communities Developed in Karst Ecosystems with Shallow and Deep Soil Depths." Agronomy 11, no. 1 (2021): 173. http://dx.doi.org/10.3390/agronomy11010173.

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Soil erosion is prevalent in karst areas, but few studies have compared the differences in the drivers for soil microbial communities among karst ecosystems with different soil depths, and most studies have focused on the local scale. To fill this research gap, we investigated the upper 20 cm soil layers of 10 shallow–soil depth (shallow–SDC, total soil depth less than 100 cm) and 11 deep–soil depth communities (deep–SDC, total soil depth more than 100 cm), covering a broad range of vegetation types, soils, and climates. The microbial community characteristics of both the shallow–SDC and deep–

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Bach, Lisbet Holm, Åsa Frostegård, and Mikael Ohlson. "Variation in soil microbial communities across a boreal spruce forest landscape." Canadian Journal of Forest Research 38, no. 6 (2008): 1504–16. http://dx.doi.org/10.1139/x07-232.

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We investigated soil microbial community structure by phospholipid fatty acid (PLFA) analysis in a mature boreal spruce forest landscape in southern Norway, with low diversity of vascular plants. We investigated the spatial variation in PLFAs and the importance of environmental variables in 10 plots (each 13 samples) in a study area of 1 km × 1 km. The scales investigated were 15 cm to 10 m within study plots and 100 m to 1 km between study plots. Soil microbial biomass varied 10-fold and we found a large variation in microbial community structure, even at distances of 15 cm. Samples aggregate

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Mathew, Reji P., Yucheng Feng, Leonard Githinji, Ramble Ankumah, and Kipling S. Balkcom. "Impact of No-Tillage and Conventional Tillage Systems on Soil Microbial Communities." Applied and Environmental Soil Science 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/548620.

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Soil management practices influence soil physical and chemical characteristics and bring about changes in the soil microbial community structure and function. In this study, the effects of long-term conventional and no-tillage practices on microbial community structure, enzyme activities, and selected physicochemical properties were determined in a continuous corn system on a Decatur silt loam soil. The long-term no-tillage treatment resulted in higher soil carbon and nitrogen contents, viable microbial biomass, and phosphatase activities at the 0–5 cm depth than the conventional tillage treat

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Muhammad, Bello, Zainab, Sanusi, Muhammad, Adamu, Aliyu Aliero, Aliyu, Ibrahim Dabai, and Adamou, Rabani. "Evaluation of Presumed Drought Impacted Soils through Phospholipid Fatty Acid (PLFA) Biomarkers in the Sahel Region." International Journal of Biochemistry Research & Review 33, no. 6 (2024): 487–506. https://doi.org/10.9734/ijbcrr/2024/v33i6930.

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Aims: The aim of this study is to utilize biomarkers to detect drought induced changes in soil microbial communities within presumed drought impacted soils in selected regions of the Sahel. Study Design: A correlational study design was used to examine the influence of soil pH in relation to other soil properties (e.g., organic carbon, nitrogen and Phosphorus), while PLFA biomarkers were analysed using principal component analysis and descriptive statistics. Place and Duration of Study: The study, conducted from May to October 2021, focused on the Sahel region of sub-Saharan Africa, specifical

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Luo, Chaoyi, Bingxue Zhang, Jiang Liu, Xiaoxia Wang, Fengpeng Han, and Jihai Zhou. "Effects of Different Ages of Robinia pseudoacacia Plantations on Soil Physiochemical Properties and Microbial Communities." Sustainability 12, no. 21 (2020): 9161. http://dx.doi.org/10.3390/su12219161.

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Robinia pseudoacacia is widely planted on the Loess Plateau as a strong drought-tolerant and salt-tolerant species for vegetation restoration. However, this mode of pure plantation has triggered great concern over the soil ecosystem. The aim of this study was to explore the effects of the plantation on soil physiochemical properties, soil microorganisms, and the relationship between them in Robinia pseudoacacia plantations of different ages. Four different ages of Robinia pseudoacacia stands, including 10-year-old, 15-year-old, 25-year-old, and 40-year-old (abbreviated as Y10, Y15, Y25, and Y4

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Chang, Tian, Shiau, Chen, and Chiu. "Influence of Thorny Bamboo Plantations on Soil Microbial Biomass and Community Structure in Subtropical Badland Soils." Forests 10, no. 10 (2019): 854. http://dx.doi.org/10.3390/f10100854.

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Vegetation in southeastern Taiwan plays an important role in rehabilitating badland soils (high silt and clay content) and maintaining the soil microbial community. The establishment of thorny bamboo (Bambusa stenostachya Hackel) may have had a profound impact on the abundance and community structure of soil microorganisms. However, little is known regarding the influence of bamboo on soil biota in the badland ecosystem. The present study was conducted at three badland sites in southwestern Taiwan and focused on the measurement of phospholipid fatty acids (PLFA) together with soil microbial bi

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Shen, Jianxun. "Phospholipid biomarkers in Mars-analogous soils of the Atacama Desert." International Journal of Astrobiology 19, no. 6 (2020): 505–14. http://dx.doi.org/10.1017/s1473550420000294.

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AbstractIn Mars-analogous hyperarid soils of the Atacama Desert, phospholipid fatty acids (PLFAs) as the main component of biomembrane play a role in reliably determining viable microbes. PLFA analyses illustrated a rise of the microbial abundance (from 5.0 × 106 to 4.2 × 107 cells g−1) and biodiversity (from 7 to 15 different individual PLFAs) from the north hyperarid core of the Atacama Desert to the southern arid region. Abundant cyclopropyl PLFAs (47.2 ± 4.6%) suggested the resistance to oligotrophic and hypersaline environments by Atacama microbial communities. The southernmost arid site

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Santás-Miguel, Vanesa, Montserrat Díaz-Raviña, Angela Martín, et al. "Soil Enzymatic Activities and Microbial Community Structure in Soils Polluted with Tetracycline Antibiotics." Agronomy 11, no. 5 (2021): 906. http://dx.doi.org/10.3390/agronomy11050906.

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A laboratory experiment was performed to examine the medium-term influence of three tetracycline antibiotics (chlortetracycline, CTC; tetracycline, TC and oxytetracycline, OTC) at different concentrations in four agricultural soils with similar pH and different soil organic content. After a 42-days incubation period, three different soil enzymes (β-glucosidase, urease, and phosphomonoesterase) were estimated, as well as the phospholipid fatty acids (PLFAs). A residual effect was observed on all microbial parameters measured in the four soils affecting to the soil enzymes activity and soil micr

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Chang, Ed-Haun, Isheng Jason Tsai, Shih-Hao Jien, Guanglong Tian, and Chih-Yu Chiu. "Biogeographic Changes in Forest Soil Microbial Communities of Offshore Islands—A Case Study of Remote Islands in Taiwan." Forests 12, no. 1 (2020): 4. http://dx.doi.org/10.3390/f12010004.

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Biogeographic separation has been an important cause of faunal and floral distribution; however, little is known about the differences in soil microbial communities across islands. In this study, we determined the structure of soil microbial communities by analyzing phospholipid fatty acid (PLFA) profiles and comparing enzymatic activities as well as soil physio-chemical properties across five subtropical granite-derived and two tropical volcanic (andesite-derived) islands in Taiwan. Among these islands, soil organic matter, pH, urease, and PLFA biomass were higher in the tropical andesite-der

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18

Lozano, Elena, Fuensanta García-Orenes, Gema Bárcenas-Moreno, et al. "Relationships between soil water repellency and microbial community composition under different plant species in a Mediterranean semiarid forest." Journal of Hydrology and Hydromechanics 62, no. 2 (2014): 101–7. http://dx.doi.org/10.2478/johh-2014-0017.

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Abstract Soil water repellency (SWR) can influence many hydrological soil properties, including water infiltration, uneven moisture distribution or water retention. In the current study we investigated how variable SWR persistence in the field is related to the soil microbial community under different plant species (P. halepensis, Q. rotundifolia, C. albidus and R. officinalis) in a Mediterranean forest. The soil microbial community was determined through phospholipid fatty acids (PLFA). The relationships between microbiological community structure and the soil properties pH, Glomalin Related

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Rethemeyer, Janet, Christiane Kramer, Gerd Gleixner, et al. "Complexity of Soil Organic Matter: AMS 14C Analysis of Soil Lipid Fractions and Individual Compounds." Radiocarbon 46, no. 1 (2004): 465–73. http://dx.doi.org/10.1017/s0033822200039771.

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Radiocarbon measurements of different lipid fractions and individual compounds, isolated from soil samples collected on 2 different agricultural long-term study sites, located in the rural area of Rotthalmünster (Germany) and in the city of Halle/Saale (Germany), were analyzed to obtain information about sources and the stability of soil organic matter (SOM). Different lipid compound classes were isolated by automated solvent extraction and subsequent medium-pressure liquid chromatography. Generally, 14C contents of lipid compound classes from topsoil samples of maize plots at Rotthalmünster a

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Xue, Dong, Xiang Dong Huang, and Lian Xue. "Soil Microbial Community Structure in Tree Peony (Paeonia suffruticosa) Garden Based on PLFA Analysis." Applied Mechanics and Materials 675-677 (October 2014): 82–85. http://dx.doi.org/10.4028/www.scientific.net/amm.675-677.82.

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Understanding the chronological change in soil microbial community structure of tree peony garden ecosystem is important from ecological, environmental, and management perspectives. Soil samples were collected from three tree peony garden systems (5-, 12-, and 25-year-old tree peony gardens), and adjacent wasteland at Luoyang, Henan Province of China. Soil microbial community structure was analyzed by phospholipid fatty acid (PLFA) method. The bacterial and actinomycete PLFAs increased from the wasteland to 5-year-old tree peony garden and then decreased from the 5- to 25-year-old tree peony g

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Zheng, Yunyou, Qiuyun Fan, Yuqing Geng, et al. "Shifts in the Soil Microbial Community and Enzyme Activity Under Picea crassifolia Plantations and Natural Forests." Forests 16, no. 1 (2024): 14. https://doi.org/10.3390/f16010014.

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Soil microbes are crucial for regulating biogeochemical cycles and maintaining forest ecosystem sustainability; however, the understanding of microbial communities and enzyme activity under natural and plantation forests in plateau regions remains limited. Using soil samples from 15-, 30-, and 50-year-old Picea crassifolia plantations and a natural forest (NF) in eastern Qinghai, China, this study assessed physicochemical properties, microbial communities, and enzyme activity across three soil layers. Microbial composition was characterized using the phospholipid fatty acid (PLFA) method, whic

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Wang, Hehua, Juan Wang, Chaorong Ge, and Huaiying Yao. "Fungi Dominated the Incorporation of 13C-CO2 into Microbial Biomass in Tomato Rhizosphere Soil under Different CO2 Concentrations." Microorganisms 9, no. 10 (2021): 2121. http://dx.doi.org/10.3390/microorganisms9102121.

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An elevated CO2 (eCO2) fumigation experiment was carried out to study the influence of various CO2 concentrations on microorganisms involved in the incorporation of root-derived C in greenhouse soil systems. In this study, 400 and 800 µmol·mol−1 CO2 fumigation treatments were conducted during tomato planting. Phospholipid fatty acid (PLFA) profiling based on the stable isotope probing (SIP) technique was applied to trace active microorganisms. The absolute total abundance of 13C-PLFAs was much higher under eCO2 treatment. Most of the 13C-CO2 was incorporated into the 13C-PLFAs 18:2ω6,9 (fungi)

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Joergensen, Rainer Georg. "Phospholipid fatty acids in soil—drawbacks and future prospects." Biology and Fertility of Soils 58, no. 1 (2021): 1–6. http://dx.doi.org/10.1007/s00374-021-01613-w.

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Abstract The current opinion and position paper highlights (1) correct assignation of indicator phospholipid fatty acids (PLFA), (2) specificity and recycling of PLFA in microorganisms, and (3) complete extraction and detection of PLFA. The straight-chain PLFA 14:0, 15:0, 16:0, and 17:0 occur in all microorganisms, i.e., also in fungi and not only in bacteria. If the phylum Actinobacteria is excluded from the group of Gram-positive bacteria, all remaining bacteria belong to the bacterial phylum Firmicutes, which should be considered. The PLFA 16:1ω5 should be used as an indicator for the bioma

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Wang, Mingyu, Xiaohong Weng, Rongtao Zhang, Libin Yang, Yingnan Liu, and Xin Sui. "The Diversity and Composition of Soil Microbial Community Differ in Three Typical Wetland Types of the Sanjiang Plain, Northeastern China." Sustainability 14, no. 21 (2022): 14394. http://dx.doi.org/10.3390/su142114394.

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The wetlands in China’s Sanjiang Plain have experienced intensive anthropogenic disturbance recently, and this has obviously changed their environmental characteristics. Soil microorganisms play an important role in wetland ecosystems. However, the effects of different wetland types on soil microbial diversity and community composition remain largely unclear. Therefore, we assessed the effects of three typical wetland types—permanently flooded wetlands, seasonally flooded wetlands and non-flooded wetlands—on soil microbial communities in the Sanjiang Plain, using phospholipid fatty acid analys

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Ibekwe, A. Mark, Sharon K. Papiernik, Jianying Gan, Scott R. Yates, Ching-Hong Yang, and David E. Crowley. "Impact of Fumigants on Soil Microbial Communities." Applied and Environmental Microbiology 67, no. 7 (2001): 3245–57. http://dx.doi.org/10.1128/aem.67.7.3245-3257.2001.

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ABSTRACT Agricultural soils are typically fumigated to provide effective control of nematodes, soilborne pathogens, and weeds in preparation for planting of high-value cash crops. The ability of soil microbial communities to recover after treatment with fumigants was examined using culture-dependent (Biolog) and culture-independent (phospholipid fatty acid [PLFA] analysis and denaturing gradient gel electrophoresis [DGGE] of 16S ribosomal DNA [rDNA] fragments amplified directly from soil DNA) approaches. Changes in soil microbial community structure were examined in a microcosm experiment foll

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Yao, Zhiyuan, Haizhen Wang, Laosheng Wu, Jianjun Wu, Philip C. Brookes, and Jianming Xu. "Interaction between the Microbial Community and Invading Escherichia coli O157:H7 in Soils from Vegetable Fields." Applied and Environmental Microbiology 80, no. 1 (2013): 70–76. http://dx.doi.org/10.1128/aem.03046-13.

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ABSTRACTThe survival ofEscherichia coliO157:H7 in soils can contaminate vegetables, fruits, drinking water, etc. However, data on the impact ofE. coliO157:H7 on soil microbial communities are limited. In this study, we monitored the changes in the indigenous microbial community by using the phospholipid fatty acid (PLFA) method to investigate the interaction of the soil microbial community withE. coliO157:H7 in soils. Simple correlation analysis showed that the survival ofE. coliO157:H7 in the test soils was negatively correlated with the ratio of Gram-negative (G−) to Gram-positive (G+) bacte

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Bååth, Erland, Montserrat Díaz-Raviña, Åsa Frostegård, and Colin D. Campbell. "Effect of Metal-Rich Sludge Amendments on the Soil Microbial Community." Applied and Environmental Microbiology 64, no. 1 (1998): 238–45. http://dx.doi.org/10.1128/aem.64.1.238-245.1998.

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ABSTRACT The effects of heavy-metal-containing sewage sludge on the soil microbial community were studied in two agricultural soils of different textures, which had been contaminated separately with three predominantly single metals (Cu, Zn, and Ni) at two different levels more than 20 years ago. We compared three community-based microbiological measurements, namely, phospholipid fatty acid (PLFA) analysis to reveal changes in species composition, the Biolog system to indicate metabolic fingerprints of microbial communities, and the thymidine incorporation technique to measure bacterial commun

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Chaudhary, Doongar R., Jyotisna Saxena, Nicola Lorenz, Linda K. Dick, and Richard P. Dick. "Microbial Profiles of Rhizosphere and Bulk Soil Microbial Communities of Biofuel Crops Switchgrass (Panicum virgatumL.) and Jatropha (Jatropha curcasL.)." Applied and Environmental Soil Science 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/906864.

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The production of biofuels from the low-input energy crops, switchgrass (Panicum virgatumL.) and jatropha (Jatropha curcasL.), is a sustainable approach that can provide more usable energy and environmental benefits than food-based biofuels. Plant rhizosphere affects the microbial community structure due to variations in root exudation rates and residue chemistry. The objective of this investigation was to determine the profiles of microbial communities associated with rhizosphere and bulk soils of switchgrass or jatropha using phospholipid fatty acid (PLFA) analysis and length heterogeneity P

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Morugán-Coronado, Alicia, Paula Pérez-Rodríguez, Eliana Insolia, Diego Soto-Gómez, David Fernández-Calviño, and Raúl Zornoza. "The impact of crop diversification, tillage and fertilization type on soil total microbial, fungal and bacterial abundance: A worldwide meta-analysis of agricultural sites." Agriculture, Ecosystems and Environment 329 (May 1, 2022): 107867. https://doi.org/10.1016/j.agee.2022.107867.

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A meta-analysis was performed to assess changes in microbial abundance in agricultural soils affected by: (i) management practices (tillage, fertilization and crop diversification); and (ii) environmental factors, including climate characteristics and soil properties. The scope of the meta-analysis was to evaluate whether microbial abundances are affected or not by organic fertilization or no fertilization, crop diversification (intercropping and crop rotations) and conservation tillage (reduced tillage/notillage) as an alternative to intensive conventional monocultures in agriculture. Only pa

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Vestberg, Mauritz, Ansa Palojärvi, Timo Pitkänen, Saara Kaipainen, Elina Puolakka, and Marjo Keskitalo. "Neutral lipid fatty acid analysis is a sensitive marker for quantitative estimation of arbuscular mycorrhizal fungi in agricultural soil with crops of different mycotrophy." Agricultural and Food Science 21, no. 1 (2012): 12–27. http://dx.doi.org/10.23986/afsci.4996.

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The impact of host mycotrophy on arbuscular mycorrhizal fungal (AMF) markers was studied in a temperate agricultural soil cropped with mycorrhizal barley, flax, reed canary-grass, timothy, caraway and quinoa and non-mycorrhizal buckwheat, dyer's woad, nettle and false flax. The percentage of AMF root colonization, the numbers of infective propagules by the Most Probable Number (MPN) method, and the amounts of signature Phospholipid Fatty Acid (PLFA) 16:1ω5 and Neutral Lipid Fatty Acid (NLFA) 16:1ω5 were measured as AMF markers. Crop had a significant impact on MPN levels of AMF, on NLFA 16:1ω5

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Ba, Duo, Duoji Qimei, Wei Zhao, and Yang Wang. "Patterns of microbial communities were shaped by bioavailable P along the elevation gradient of Shergyla Mountain, as determined by analysis of phospholipid fatty acids." PLOS ONE 17, no. 7 (2022): e0271101. http://dx.doi.org/10.1371/journal.pone.0271101.

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The distribution pattern of the microbial community in mountains is an important component of biodiversity research. Many environmental factors vary significantly with elevation on a relatively small scale in subalpine and alpine environments. These factors may markedly affect microbial community composition and function. In this study, we analyzed phospholipid fatty acid (PLFA) profiles and phosphorus (P) fractions in soils from 9 sites along an elevation gradient (3500–4100 m above sea level (a.s.l.)) of the Shergyla Mountain, Tibet in China. Many biomarker PLFAs indicated that there were bi

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Gunina, Anna, Michaela Dippold, Bruno Glaser, and Yakov Kuzyakov. "Turnover of microbial groups and cell components in soil: <sup>13</sup>C analysis of cellular biomarkers." Biogeosciences 14, no. 2 (2017): 271–83. http://dx.doi.org/10.5194/bg-14-271-2017.

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Abstract. Microorganisms regulate the carbon (C) cycle in soil, controlling the utilization and recycling of organic substances. To reveal the contribution of particular microbial groups to C utilization and turnover within the microbial cells, the fate of 13C-labelled glucose was studied under field conditions. Glucose-derived 13C was traced in cytosol, amino sugars and phospholipid fatty acid (PLFA) pools at intervals of 3, 10 and 50 days after glucose addition into the soil. 13C enrichment in PLFAs ( ∼ 1.5 % of PLFA C at day 3) was an order of magnitude greater than in cytosol, showing the

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Zhang, Chuang, Xin-Yu Zhang, Hong-Tao Zou, et al. "Contrasting effects of ammonium and nitrate additions on the biomass of soil microbial communities and enzyme activities in subtropical China." Biogeosciences 14, no. 20 (2017): 4815–27. http://dx.doi.org/10.5194/bg-14-4815-2017.

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Abstract. The nitrate to ammonium ratios in nitrogen (N) compounds in wet atmospheric deposits have increased over the recent past, which is a cause for some concern as the individual effects of nitrate and ammonium deposition on the biomass of different soil microbial communities and enzyme activities are still poorly defined. We established a field experiment and applied ammonium (NH4Cl) and nitrate (NaNO3) at monthly intervals over a period of 4 years. We collected soil samples from the ammonium and nitrate treatments and control plots in three different seasons, namely spring, summer, and

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Yoshitake, Shinpei, and Takayuki Nakatsubo. "Changes in soil microbial biomass and community composition along vegetation zonation in a coastal sand dune." Soil Research 46, no. 4 (2008): 390. http://dx.doi.org/10.1071/sr07104.

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We used phospholipid fatty acid (PLFA) analysis to examine the relation of microbial biomass and community composition to vegetation zonation on a coastal sand dune. Soil samples were collected along 3 line transects established from the shoreline to the inland bush. Total PLFA content and PLFA composition of soils were used as indices of total microbial biomass and community composition, respectively. The microbial biomass was much higher in the inland Vitex rotundifolia zone than in the seaside plots. The microbial community composition also differed among the vegetation zones, with a higher

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Fan, Qiuyun, Yuguo Yang, Yuqing Geng, Youlin Wu, and Zhanen Niu. "Biochemical composition and function of subalpine shrubland and meadow soil microbiomes in the Qilian Mountains, Qinghai–Tibetan plateau, China." PeerJ 10 (April 4, 2022): e13188. http://dx.doi.org/10.7717/peerj.13188.

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Microorganisms participate in the soil biogeochemical cycle. Therefore, investigating variations in microbial biomass, composition, and functions can provide a reference for improving soil ecological quality due to the sensitivity of microorganisms to vegetation coverage changes. However, the differences in soil microorganisms between shrubland and meadow have not been investigated in ecologically vulnerable subalpine areas. This study aimed to investigate the biochemical composition and functions of the soil microbial community under two shrublands and a meadow at high altitudes (3,400–3,550

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Chatterjee, A., L. J. Ingram, G. F. Vance, and P. D. Stahl. "Soil processes and microbial community structures in 45- and 135-year-old lodgepole pine stands." Canadian Journal of Forest Research 39, no. 11 (2009): 2263–71. http://dx.doi.org/10.1139/x09-132.

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As forests develop, changes in soil organic matter quantity and quality affect both nutrient dynamics and microbial community structure. Litter decomposition and nitrogen mineralization in association with soil microbial communities were compared between 45- and 135-year-old lodgepole pine ( Pinus contorta var. latifolia (Englem.)) stands in southeastern Wyoming, USA. Compared with the 45-year-old stand, the 135-year-old stand was found to have greater live-tree biomass, litter decomposition rates (264 versus 135 mg·(g litter)–1·year–1), soil nitrification rates (0.38 versus 0.19 µg NO3–·(g so

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Vázquez-Blanco, R., M. Arias-Estévez, Erland Bååth, and D. Fernández-Calviño. "Comparing the effect of Cu-based fungicides and pure Cu salts on microbial biomass, microbial community structure and bacterial community tolerance to Cu." Journal of Hazardous Materials 409 (May 1, 2021): 124960. https://doi.org/10.1016/j.jhazmat.2020.124960.

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The effect of Cu on three different microbial endpoints was studied using different Cu sources, in order to check the usefulness of pure Cu salts to estimate the toxicity of commercial Cu fungicides on soil microbes. Cu additions caused similar dose-response curves of substrate induced respiration (SIR) decreases regardless of Cu source, i.e. the use of pure Cu salts to estimate the effect of Cu fungicides on microbial biomass using SIR may be useful. Phospholipid fatty acid (PLFA) analysis showed that the Cu source was more important for the microbial community struct

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Balla Kovács, Andrea, Evelin Kármen Juhász, Áron Béni, et al. "Changes in Microbial Community and Activity of Chernozem Soil under Different Management Systems in a Long-Term Field Experiment in Hungary." Agronomy 14, no. 4 (2024): 745. http://dx.doi.org/10.3390/agronomy14040745.

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The effects of intensive and reduced tillage, fertilization, and irrigation on soil chemical and microbiological parameters were studied in a long-term field experiment in Hungary. The treatments were plowing tillage, ripper tillage, strip tillage; control (without fertilization), NPK fertilization (N: 160 kg/ha; P: 26 kg/ha; K: 74 kg/ha); and non-irrigation and irrigation. Soil samples were collected through maize monoculture in the fall of 2021 in the 30th year of the experiment. The soil organic carbon, total nitrogen, soil microbial biomass (based on PLFA analysis), and soil enzyme activit

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Hynes, Holly M., and James J. Germida. "A chronsequential approach to investigating microbial community shifts following clearcutting in Boreal Plain forest soils." Canadian Journal of Forest Research 42, no. 12 (2012): 2078–89. http://dx.doi.org/10.1139/cjfr-2012-0038.

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Impacts of forest harvesting are often assessed in short-term studies that ignore the longer term changes associated with the disturbance. A chronosequence approach was taken to investigate changes in microbial community size and composition over ∼20 years post-harvest in lodgepole pine ( Pinus contorta Douglas ex Loudon) stands of the Boreal Plain. The LFH and mineral Ae horizons of Orthic Gray Luvisolic soils were sampled in six cutblocks, aged 1–19 years since harvest, in 2009 and 2010. Changes in microbial communities were assessed using phospholipid fatty acid analysis (PLFA) and 16S rDNA

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Butler, Jessica L., Mark A. Williams, Peter J. Bottomley, and David D. Myrold. "Microbial Community Dynamics Associated with Rhizosphere Carbon Flow." Applied and Environmental Microbiology 69, no. 11 (2003): 6793–800. http://dx.doi.org/10.1128/aem.69.11.6793-6800.2003.

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ABSTRACT Root-deposited photosynthate (rhizodeposition) is an important source of readily available carbon (C) for microbes in the vicinity of growing roots. Plant nutrient availability is controlled, to a large extent, by the cycling of this and other organic materials through the soil microbial community. Currently, our understanding of microbial community dynamics associated with rhizodeposition is limited. We used a 13C pulse-chase labeling procedure to examine the incorporation of rhizodeposition into individual phospholipid fatty acids (PLFAs) in the bulk and rhizosphere soils of greenho

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Tirado-Corbalá, Rebecca, Mario L. Flores-Mangual, and Sadikshya R. Dangi. "The effect of prescribed fires on abiotic and biotic factors in the southern region of Puerto Rico." Journal of Agriculture of the University of Puerto Rico 106, no. 2 (2023): 183–205. http://dx.doi.org/10.46429/jaupr.v106i2.21151.

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Field fires can modify soil nutrient cycling and alter soil microbial communities (SMC), although the latter is not well understood. In the southern region of Puerto Rico, field fires have become a significant problem during the dry season. To mimic the effects of a field fire, we performed prescribed fires on a hillside at the Juana Díaz Agricultural Experiment substation in October 2015 and March 2017. A complete randomized block design was established in Yauco soil (Typic calciustolls) that included the following treatments: negative control (unburned), positive control (burned plots, no re

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Li, Hailiang, Yang Yang, M. James C. Crabbe, and Haikui Chen. "The Characteristics of Dissolved Organic Matter and Soil Microbial Communities in the Soils of Larix principis-rupprechtii Mayr. Plantations in the Qinling Mountains, China." Sustainability 14, no. 19 (2022): 11968. http://dx.doi.org/10.3390/su141911968.

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Soil microorganisms and dissolved organic matter (DOM) play vital roles in nutrient cycling and maintaining plant diversity. The aim of this study was to clarify the relationship between DOM component characteristics and microbial community structure in the soil of Larix principis-rupprechtii Mayr. plantations. We quantified the responses of the soil microbial and DOM characteristics to stand age in a plantation forest ecosystem using phospholipid fatty acid (PLFA) analyses, ultraviolet-visible spectroscopy, and fluorescence spectroscopy. Three humic-like components and a fulvic-like component

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Wang, Chao, Qiannan Yang, Jing Chen, Chi Zhang, and Kexue Liu. "Variations in Soil Organic Carbon Fractions and Microbial Community in Rice Fields under an Integrated Cropping System." Agronomy 14, no. 1 (2023): 81. http://dx.doi.org/10.3390/agronomy14010081.

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Combining rice cultivation and aquaculture into an integrated cropping system is a management approach that enhances the sustainability of rice fields. However, how soil characteristics influence soil microbial community characteristics following implementation of such an integrated system, particularly in the waterlogged paddies of the Pearl River Delta, is poorly understood. An integrated cropping system (rice–fish–duck integrated cropping system, RFD) and a rice–pepper rotation system (RPS) were compared using a conventional rice cropping system (CRS) as a reference. We used phospholipid-de

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Hahn, Aria S., and Sylvie A. Quideau. "Shifts in soil microbial community biomass and resource utilization along a Canadian glacier chronosequence." Canadian Journal of Soil Science 93, no. 3 (2013): 305–18. http://dx.doi.org/10.4141/cjss2012-133.

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Hahn, A. S. and Quideau, S. A. 2013. Shifts in soil microbial community biomass and resource utilization along a Canadian glacier chronosequence. Can. J. Soil Sci. 93: 305–318. We aimed to describe soil microbial community composition and functional diversity as well as determine the influence of Engelmann spruce (Picea engelmannii Parry) and yellow mountain avens (Dryas drummondii Rich.) on soil microbial community succession along a Canadian glacier chronosequence. Soil microbial composition and functional activity were assessed using phospholipid fatty acid (PLFA) analysis, substrate-induce

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Yu, Wenjuan, Huanhuan Gao, and Hongzhang Kang. "Ester Linked Fatty Acid (ELFA) method should be used with caution for interpretating soil microbial communities and their relationships with environmental variables in forest soils." PLOS ONE 16, no. 5 (2021): e0251501. http://dx.doi.org/10.1371/journal.pone.0251501.

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As an alternative for phospholipid fatty acid (PLFA) analysis, a simpler ester linked fatty acid (ELFA) analysis has been developed to characterize soil microbial communities. However, few studies have compared the two methods in forest soils where the contribution of nonmicrobial sources may be larger than that of microbial sources. Moreover, it remains unclear whether the two methods yield similar relationships of microbial biomass and composition with environmental variables. Here, we compared PLFA and ELFA methods with respect to microbial biomass and composition and their relationships wi

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Buyer, Jeffrey S., Bryan Vinyard, Jude Maul, et al. "Combined extraction method for metabolomic and PLFA analysis of soil." Applied Soil Ecology 135 (March 2019): 129–36. http://dx.doi.org/10.1016/j.apsoil.2018.11.012.

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Wang, Shenzheng, Mingyu Wang, Xin Gao, et al. "The Diversity and Composition of Soil Microbial Communities Differ in Three Land Use Types of the Sanjiang Plain, Northeastern China." Microorganisms 12, no. 4 (2024): 780. http://dx.doi.org/10.3390/microorganisms12040780.

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In recent years, the Sanjiang Plain has experienced drastic human activities, which have dramatically changed its ecological environment. Soil microorganisms can sensitively respond to changes in soil quality as well as ecosystem function. In this study, we investigated the changes in soil microbial community diversity and composition of three typical land use types (forest, wetland and cropland) in the Sanjiang Plain using phospholipid fatty acid analysis (PLFA) technology, and 114 different PLFA compounds were identified. The results showed that the soil physicochemical properties changed si

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Wang, Wei, Xue He, Xin He, Yu Song, Dandan Qi, and Fuqiang Song. "Effects of Simulated Nitrogen Deposition on Soil Microbial Community Structure in Temperate Forest Based on PLFA Method." Asian Journal of Research in Agriculture and Forestry 9, no. 3 (2023): 56–64. http://dx.doi.org/10.9734/ajraf/2023/v9i3206.

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Soil microorganisms play a crucial role in the biogeochemical cycling of terrestrial ecosystems. However, previous studies on the effects of nitrogen deposition on microorganisms have primarily focused on nitrogen-sensitive tropical forest ecosystems. This study focused on soil in a temperate Korean pine plantation and conducted a field simulated nitrogen deposition experiment. The effects of different nitrogen application rates on the microbial community structure were analyzed using the phospholipid fatty acid (PLFA) method. The experiment included four nitrogen application rates: control (C

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Petersen, SÃ¯Â¿Â½ren O., Peter Roslev, and Roland Bol. "Dynamics of a Pasture Soil Microbial Community after Deposition of Cattle Urine Amended with [13C]Urea." Applied and Environmental Microbiology 70, no. 11 (2004): 6363–69. http://dx.doi.org/10.1128/aem.70.11.6363-6369.2004.

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ABSTRACT Within grazed pastures, urine patches are hot spots of nitrogen turnover, since dietary N surpluses are excreted mainly as urea in the urine. This short-term experiment investigated 13C uptake in microbial lipids after simulated deposition of cattle urine at 10.0 and 17.1 g of urea C m−2. Confined field plots without or with cattle urine amendment were sampled after 4 and 14 days, and soil from 0- to 5-cm and 10- to 20-cm depths was analyzed for content and composition of phospholipid fatty acids (PLFAs) and for the distribution of urea-derived 13C among individual PLFAs. Carbon dioxi

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Khan, Asif, Tianyang Li, Binghui He, and Gaoning Zhang. "Insights from Fertilization and Cultivation Management for Interpreting the Variations in the Quantity and Quality of Dissolved Organic Carbon and Microbial Community Structure on Purple Soil Sloping Farmland in Southwest China." Agronomy 14, no. 3 (2024): 426. http://dx.doi.org/10.3390/agronomy14030426.

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It is crucial to comprehend how fertilization and cultivation management alter the composition of dissolved organic carbon (DOC) and microbial communities to regulate the biogeochemical cycling of soil nutrients and mitigate adverse impacts on soil–water quality. Based on 15 years of long-term field trials conducted in purple soil on farmland with a slope of 15° in southwestern China, the following five treatments were examined: CK (no fertilizer was applied), T1 (NPK plus organic manure and downslope cultivation), T2 (NPK and downslope cultivation), T3 (1.5-fold NPK and downslope cultivation)

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