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Articoli di riviste sul tema "Root traits and exudation"

Autore: Grafiati

Pubblicato: 1 giugno 2024

Ultima modifica: 31 luglio 2025

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1

Kawakami, Erika, Mioko Ataka, Tomonori Kume, et al. "Root exudation in a sloping Moso bamboo forest in relation to fine root biomass and traits." PLOS ONE 17, no. 3 (2022): e0266131. http://dx.doi.org/10.1371/journal.pone.0266131.

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Exudation by fine roots generally varies with their morphological traits, but the effect of belowground resource availability on the root exudation via root morphological traits and biomass remains unknown. We aimed to determine the effects of morphological and physiological traits on root exudation rates and to estimate stand-scale exudation (Estand) by measuring the mass, length, and surface area of fine roots in a Moso bamboo forest. We measured root exudation as well as morphological and physiological traits in upper and lower plots on a slope with different belowground resource availabili

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2

Yang, Liu, Xiuwei Wang, Zijun Mao, et al. "Root Exudation Rates Decrease with Increasing Latitude in Some Tree Species." Forests 11, no. 10 (2020): 1045. http://dx.doi.org/10.3390/f11101045.

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Research Highlights: Understanding of the spatial variation of root exudation on a regional scale can help understand the response of plant physiological activities to environmental changes. Background and Objectives: Although root exudation has become an important topic in belowground ecology, its relationship with root traits and environmental factors is poorly understood. Our objective was to explore how root traits and environmental factors influence root exudation. Materials and Methods: We used a multi-factorial design consisting of three tree species spanning across sites located at thr

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Tang, Lanlan, Ming Zhan, Chunhui Shang, Jiayi Yuan, Yibing Wan, and Mingguang Qin. "Dynamics of root exuded carbon and its relationships with root traits of rapeseed and wheat." Plant, Soil and Environment 67, No. 6 (2021): 317–23. http://dx.doi.org/10.17221/561/2020-pse.

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Quantifying carbon in root exudates and exploring their influencing factors are essential to understand soil organic carbon dynamics in cropland. A pot experiment was carried out to explore quantitative relations between root exuded carbon and root traits in wheat and rapeseed. The result showed that rapeseed had a similar pattern in root carbon exudation intensity (EI) as the wheat, but its EI per plant was obviously higher than that in wheat. Rapeseed plants had higher EI per root biomass than wheat plants in the early growth period but lower in the late growth period. EI per root biomass in

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4

Li, Zuwang, Zhi Liu, Guoqiang Gao, Xinlei Yang, and Jiacun Gu. "Shift from Acquisitive to Conservative Root Resource Acquisition Strategy Associated with Increasing Tree Age: A Case Study of Fraxinus mandshurica." Forests 12, no. 12 (2021): 1797. http://dx.doi.org/10.3390/f12121797.

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Tree age has an important effect on the form and function of fine roots. Previous studies have focused on the variations in root morphological and chemical traits among tree ages, while less attention has been given to the physiological traits, impeding a full understanding of the relationship between root resource acquisition strategy and tree age. Here, we measured root morphological (diameter, specific root length, specific root area and tissue density), chemical (nitrogen concentration) and physiological (respiration and exudation rate) traits of young, middle-aged and mature trees of Frax

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5

Akatsuki, Maiko, and Naoki Makita. "Influence of fine root traits on in situ exudation rates in four conifers from different mycorrhizal associations." Tree Physiology 40, no. 8 (2020): 1071–79. http://dx.doi.org/10.1093/treephys/tpaa051.

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Abstract Plant roots can exude organic compounds into the soil that are useful for plant survival because they can degrade microorganisms around the roots and enhance allelopathy against other plant invasions. We developed a method to collect carbon (C) exudation on a small scale from tree fine roots by C-free filter traps. We quantified total C through root exudation in four conifers from different microbial symbiotic groups (ectomycorrhiza (ECM) and arbuscular mycorrhiza (AM)) in a cool-temperate forest in Japan. We determined the relationship of mass-based exudation rate from three diameter

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6

Ataka, Mioko, Lijuan Sun, Tatsuro Nakaji, Ayumi Katayama, and Tsutom Hiura. "Five-year nitrogen addition affects fine root exudation and its correlation with root respiration in a dominant species, Quercus crispula, of a cool temperate forest, Japan." Tree Physiology 40, no. 3 (2020): 367–76. http://dx.doi.org/10.1093/treephys/tpz143.

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Abstract In forest ecosystems, fine root respiration directly contributes to belowground carbon (C) cycling. Exudation from fine roots indirectly affects C cycling via enhanced microbial decomposition of soil organic matter. Although these root-derived C fluxes are essential components of belowground C cycling, how nitrogen (N) addition affects these fluxes and their correlations remains unclear. In this study, fine root exudation, respiration and chemical/morphological traits were measured in a dominant canopy species, Quercus crispula Blume, found in a cool temperate forest, the Tomakomai Ex

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7

Wen, Zhihui, Philip J. White, Jianbo Shen, and Hans Lambers. "Linking root exudation to belowground economic traits for resource acquisition." New Phytologist 233, no. 4 (2021): 1620–35. http://dx.doi.org/10.1111/nph.17854.

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8

Miller, Sarah B., Adam L. Heuberger, Corey D. Broeckling, and Courtney E. Jahn. "Non-Targeted Metabolomics Reveals Sorghum Rhizosphere-Associated Exudates are Influenced by the Belowground Interaction of Substrate and Sorghum Genotype." International Journal of Molecular Sciences 20, no. 2 (2019): 431. http://dx.doi.org/10.3390/ijms20020431.

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Root exudation is an important plant process by which roots release small molecules into the rhizosphere that serve in overall plant functioning. Yet, there is a major gap in our knowledge in translating plant root exudation in artificial systems (i.e., hydroponics, sterile media) to crops, specifically for soils expected in field conditions. Sorghum (Sorghum bicolor L. Moench) root exudation was determined using both ultra-performance liquid chromatography and gas chromatography mass spectrometry-based non-targeted metabolomics to evaluate variation in exudate composition of two sorghum genot

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Cardenas, Julian, Fernando Santa, and Eva Kaštovská. "The Exudation of Surplus Products Links Plant Functional Traits and Plant-Microbial Stoichiometry." Land 10, no. 8 (2021): 840. http://dx.doi.org/10.3390/land10080840.

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The rhizosphere is a hot spot of soil microbial activity and is largely fed by root exudation. The carbon (C) exudation flux, coupled with plant growth, is considered a strategy of plants to facilitate nutrient uptake. C exudation is accompanied by a release of nutrients. Nitrogen (N) and phosphorus (P) co-limit the productivity of the plant-microbial system. Therefore, the C:N:P stoichiometry of exudates should be linked to plant nutrient economies, plant functional traits (PFT) and soil nutrient availability. We aimed to identify the strongest links in C:N:P stoichiometry among all rhizosphe

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Tato, Liliana, Monirul Islam, Tanja Mimmo, Graziano Zocchi, and Gianpiero Vigani. "Temporal Responses to Direct and Induced Iron Deficiency in Parietaria judaica." Agronomy 10, no. 7 (2020): 1037. http://dx.doi.org/10.3390/agronomy10071037.

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Parietaria judaica grows in highly calcareous environments, overcoming the low bioavailability of Fe caused by elevated pH. The aim of this work was to investigate the temporal dynamics of root exudation of P. judaica under Fe deficiency conditions. As high concentrations of bicarbonate and Ca2+ in calcareous soils interfere with the general plant mineral nutrition, two different alkaline growing conditions were applied to distinguish the effects due to the high pH from the responses induced by the presence of high calcium carbonate concentrations. Growth parameters and physiological responses

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Salim, Mohammad, Yinglong Chen, Zakaria M. Solaiman, and Kadambot H. M. Siddique. "Phosphorus Application Enhances Root Traits, Root Exudation, Phosphorus Use Efficiency, and Seed Yield of Soybean Genotypes." Plants 12, no. 5 (2023): 1110. http://dx.doi.org/10.3390/plants12051110.

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Phosphorus (P) is a vital macronutrient required for soybean growth and development but is a finite resource in agriculture worldwide. Low inorganic P availability in soil is often a significant constraint for soybean production. However, little is known about the response of P supply on agronomic, root morphology, and physiological mechanisms of contrasting soybean genotypes at various growth stages and the possible effects of different P on soybean yield and yield components. Therefore, we conducted two concurrent experiments using the soil-filled pots with six genotypes (deep-root system: P

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Tapia-Valdebenito, Daisy, León A. Bravo Ramirez, Patricio Arce–Johnson, and Ana Gutiérrez-Moraga. "Salt tolerance traits in Deschampsia antarctica Desv." Antarctic Science 28, no. 6 (2016): 462–72. http://dx.doi.org/10.1017/s0954102016000249.

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AbstractDeschampsia antarctica Desv. (Poaceae) grows in coastal habitats in the Maritime Antarctic where it is often exposed to sea spray. Salt crystals have been observed on the surface of leaves in plants treated with high NaCl. We investigated if D. antarctica is a salt tolerant species that allows sodium ions to diffuse into the root where a salt overly sensitive (SOS) system extrudes Na+ from root cells and facilitates its movement through the xylem up to the leaves. Leaf epidermis, physiological parameters and sodium transporters in D. antarctica plants exposed to NaCl were studied over

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13

White, Philip J. "Root traits benefitting crop production in environments with limited water and nutrient availability." Annals of Botany 124, no. 6 (2019): 883–90. http://dx.doi.org/10.1093/aob/mcz162.

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Abstract Background Breeding for advantageous root traits will play a fundamental role in improving the efficiency of water and nutrient acquisition, closing yield gaps, and underpinning the ‘Evergreen Revolution’ that must match crop production with human demand. Scope This preface provides an overview of a Special Issue of Annals of Botany on ‘Root traits benefitting crop production in environments with limited water and nutrient availability’. The first papers in the Special Issue examine how breeding for reduced shoot stature and greater harvest index during the Green Revolution affected r

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de Souza Campos, Pedro M., Sebastián Meier, Arturo Morales, et al. "New Insights into the Phosphorus Acquisition Capacity of Chilean Lowland Quinoa Roots Grown under Low Phosphorus Availability." Plants 11, no. 22 (2022): 3043. http://dx.doi.org/10.3390/plants11223043.

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Reducing phosphate fertilizer inputs while increasing food nutritional quality has been posited as a major challenge to decrease human undernourishment and ensure food security. In this context, quinoa has emerged as a promising crop due to its ability to tolerate different stress conditions and grow in marginal soils with low nutrient content, in addition to the exceptional nutritional quality of its grains. However, there is scarce information about the phosphorus acquisition capacity of quinoa roots. This work aimed to provide new insights into P acquisition and functional root traits, such

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15

Yin, Huajun, Juan Xiao, Yufei Li, et al. "Warming effects on root morphological and physiological traits: The potential consequences on soil C dynamics as altered root exudation." Agricultural and Forest Meteorology 180 (October 2013): 287–96. http://dx.doi.org/10.1016/j.agrformet.2013.06.016.

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16

MacAlister, Dunja, A. Muthama Muasya, and Samson B. M. Chimphango. "Linking root traits to superior phosphorus uptake and utilisation efficiency in three Fabales in the Core Cape Subregion, South Africa." Functional Plant Biology 45, no. 7 (2018): 760. http://dx.doi.org/10.1071/fp17209.

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In the low-P soil of the fynbos biome, plants have evolved several morphological and physiological P acquisition and use mechanisms, leading to variable uptake and use efficiencies. We expected that plants grown in low-P soils would exhibit greater P acquisition traits and hypothesised that Aspalathus linearis (Burm. f.) R. Dahlgren, a cluster-root-forming species adapted to drier and infertile soils, would be the most efficient at P acquisition compared with other species. Three fynbos Fabales species were studied: A. linearis and Podalyria calyptrata (Retz.) Willd, both legumes, and Polygala

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17

Marschmann, Gianna L., Jinyun Tang, Kateryna Zhalnina, et al. "Predictions of rhizosphere microbiome dynamics with a genome-informed and trait-based energy budget model." Nature Microbiology 9, no. 2 (2024): 421–33. http://dx.doi.org/10.1038/s41564-023-01582-w.

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AbstractSoil microbiomes are highly diverse, and to improve their representation in biogeochemical models, microbial genome data can be leveraged to infer key functional traits. By integrating genome-inferred traits into a theory-based hierarchical framework, emergent behaviour arising from interactions of individual traits can be predicted. Here we combine theory-driven predictions of substrate uptake kinetics with a genome-informed trait-based dynamic energy budget model to predict emergent life-history traits and trade-offs in soil bacteria. When applied to a plant microbiome system, the mo

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18

Egamberdieva, Dilfuza, Farkhod Eshboev, Oybek Shukurov, Burak Alaylar, and Naveen Kumar Arora. "Bacterial Bioprotectants: Biocontrol Traits and Induced Resistance to Phytopathogens." Microbiology Research 14, no. 2 (2023): 689–703. http://dx.doi.org/10.3390/microbiolres14020049.

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Plant growth and nutrition are adversely affected by various factors such as water stress, high temperature, and plant pathogens. Plant-associated microbes play a vital role in the growth and development of their hosts under biotic and abiotic stresses. The use of a rhizosphere microbiome for plant growth stimulation and the biological control of fungal disease can lead to improved crop productivity. Mechanisms used by plant-growth-promoting rhizobacteria (PGPR) to protect plants from soilborne pathogens include antibiosis, the production of lytic enzymes, indole-3 acetic acid production, decr

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19

Parra-Almuna, Leyla, Sofía Pontigo, Antonieta Ruiz, et al. "Dissecting the Roles of Phosphorus Use Efficiency, Organic Acid Anions, and Aluminum-Responsive Genes under Aluminum Toxicity and Phosphorus Deficiency in Ryegrass Plants." Plants 13, no. 7 (2024): 929. http://dx.doi.org/10.3390/plants13070929.

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Aluminum (Al) toxicity and phosphorus (P) deficiency are widely recognized as major constraints to agricultural productivity in acidic soils. Under this scenario, the development of ryegrass plants with enhanced P use efficiency and Al resistance is a promising approach by which to maintain pasture production. In this study, we assessed the contribution of growth traits, P efficiency, organic acid anion (OA) exudation, and the expression of Al-responsive genes in improving tolerance to concurrent low-P and Al stress in ryegrass (Lolium perenne L.). Ryegrass plants were hydroponically grown und

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Li, Xun, Jinlong Dong, Wenying Chu, Yujiao Chen, and Zengqiang Duan. "The relationship between root exudation properties and root morphological traits of cucumber grown under different nitrogen supplies and atmospheric CO2 concentrations." Plant and Soil 425, no. 1-2 (2018): 415–32. http://dx.doi.org/10.1007/s11104-017-3555-8.

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21

Klamer, Florian, Florian Vogel, Xuelian Li, et al. "Estimating the importance of maize root hairs in low phosphorus conditions and under drought." Annals of Botany 124, no. 6 (2019): 961–68. http://dx.doi.org/10.1093/aob/mcz011.

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Abstract Background and Aims Root hairs are single-cell extensions of the epidermis that face into the soil and increase the root–soil contact surface. Root hairs enlarge the rhizosphere radially and are very important for taking up water and sparingly soluble nutrients, such as the poorly soil-mobile phosphate. In order to quantify the importance of root hairs for maize, a mutant and the corresponding wild type were compared. Methods The rth2 maize mutant with very short root hairs was assayed for growth and phosphorus (P) acquisition in a slightly alkaline soil with low P and limited water s

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Wille, L., M. M. Messmer, B. Studer, and P. Hohmann. "Insights to plant–microbe interactions provide opportunities toimprove resistance breeding against root diseases in grainlegumes." Plant Cell Environment 42 (March 27, 2018): 20–40. https://doi.org/10.1111/pce.13214.

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Root and foot diseases severely impede grain legume cultivation worldwide. Breeding lines with resistance against individual pathogens exist, but these resistances are often overcome by the interaction of multiple pathogens in field situations. Novel tools allow to decipher plant–microbiome interactions in unprecedented detail and provide insights into resistance mechanisms that consider both simultaneous attacks of various pathogens and the interplay with beneficial microbes. Although it has become clear that plant‐associated microbes play a key role in plant health, a systematic pictur

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23

Yan, Xiaolong, Hong Liao, Steve E. Beebe, Matthew W. Blair, and Jonathan P. Lynch. "QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean." Plant and Soil 265, no. 1-2 (2004): 17–29. http://dx.doi.org/10.1007/s11104-005-0693-1.

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Palmer, Antony J., Alison Baker, and Stephen P. Muench. "The varied functions of aluminium-activated malate transporters–much more than aluminium resistance." Biochemical Society Transactions 44, no. 3 (2016): 856–62. http://dx.doi.org/10.1042/bst20160027.

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The ALMT (aluminium-activated malate transporter) family comprises a functionally diverse but structurally similar group of ion channels. They are found ubiquitously in plant species, expressed throughout different tissues, and located in either the plasma membrane or tonoplast. The first family member identified was TaALMT1, discovered in wheat root tips, which was found to be involved in aluminium resistance by means of malate exudation into the soil. However, since this discovery other family members have been shown to have many other functions such as roles in stomatal opening, general ani

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Anonymous. "Peer review report 1 On “Warming effects on root morphological and physiological traits: the potential consequences on soil C dynamics as altered root exudation”." Agricultural and Forest Meteorology 201 (January 2015): 261–62. http://dx.doi.org/10.1016/j.agrformet.2015.08.070.

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Guyonnet, Julien P., Amélie A. M. Cantarel, Laurent Simon, and Feth el Zahar Haichar. "Root exudation rate as functional trait involved in plant nutrient‐use strategy classification." Ecology and Evolution 8, no. 16 (2018): 8573–81. http://dx.doi.org/10.1002/ece3.4383.

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Agathokleous, Evgenios, Zhaozhong Feng, Elina Oksanen, et al. "Ozone affects plant, insect, and soil microbial communities: A threat to terrestrial ecosystems and biodiversity." Science Advances 6, no. 33 (2020): eabc1176. http://dx.doi.org/10.1126/sciadv.abc1176.

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Elevated tropospheric ozone concentrations induce adverse effects in plants. We reviewed how ozone affects (i) the composition and diversity of plant communities by affecting key physiological traits; (ii) foliar chemistry and the emission of volatiles, thereby affecting plant-plant competition, plant-insect interactions, and the composition of insect communities; and (iii) plant-soil-microbe interactions and the composition of soil communities by disrupting plant litterfall and altering root exudation, soil enzymatic activities, decomposition, and nutrient cycling. The community composition o

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Yang, Xiaoxia, Rui Liu, Miao Jing, Ningning Zhang, Cuiying Liu, and Jiakun Yan. "Variation of Root Soluble Sugar and Starch Response to Drought Stress in Foxtail Millet." Agronomy 13, no. 2 (2023): 359. http://dx.doi.org/10.3390/agronomy13020359.

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Foxtail millet is an important crop in Northwest China; however, the mechanism responsible for regulating root adjustment, including water uptake, sugar transport, or metabolism, in foxtail millet remains unclear. Two millet cultivars (the drought-resistant Yugu1 [YG] and the drought-sensitive An04 [An]) were used to detect physiological, molecular, and agronomic traits under two different soil water conditions. Water use efficiency increased by 18.4% and 63.2% under drought stress in An and YG, respectively. Under drought stress, YG and An root exudation (RE) decreased by 66.7% and 89.0%, the

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Sun, Lijuan, Mioko Ataka, Mengguang Han, et al. "Root exudation as a major competitive fine‐root functional trait of 18 coexisting species in a subtropical forest." New Phytologist 229, no. 1 (2020): 259–71. http://dx.doi.org/10.1111/nph.16865.

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Lv, Chunhua, Chuankuan Wang, Yiling Li, and Zhenghu Zhou. "Coordination among root exudation C, mycorrhizal colonization, and functional traits and their responses to drought in five temperate tree species." Forest Ecology and Management 546 (October 2023): 121316. http://dx.doi.org/10.1016/j.foreco.2023.121316.

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Weisskopf, Laure, Stefanie Heller, and Leo Eberl. "Burkholderia Species Are Major Inhabitants of White Lupin Cluster Roots." Applied and Environmental Microbiology 77, no. 21 (2011): 7715–20. http://dx.doi.org/10.1128/aem.05845-11.

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ABSTRACTThe formation of cluster roots by plants represents a highly efficient strategy for acquisition of sparingly available phosphate. This particular root type is characterized by a densely branched structure and high exudation of organic acids and protons, which are likely to influence the resident bacterial community. Until now, the identity of the bacterial populations living in cluster roots has not been investigated. We applied cultivation-dependent and cultivation-independent methods to characterize the dominant bacterial genera inhabiting the growing cluster roots of white lupin. We

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Ruhi and Priyanka Upadhyay. "Abiotic Stress and Millets: The Emerging Significance of Root Exudates in Crop Resilience." PLANT CELL BIOTECHNOLOGY AND MOLECULAR BIOLOGY 26, no. 3-4 (2025): 111–25. https://doi.org/10.56557/pcbmb/2025/v26i3-49235.

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Millets, often referred to as "nutri-cereals," are gaining global recognition for their remarkable resilience to abiotic stresses such as drought, salinity, and extreme temperatures. These small-seeded cereals possess unique physiological and biochemical adaptations that enable them to survive in marginal environments. Among these mechanisms, root exudates play a crucial role in stress adaptation by modulating soil microbiota, enhancing nutrient acquisition, and mitigating oxidative damage. This review explores the composition, function, and significance of root exudates in millet stress toler

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Vives-Peris, Vicente, María F. López-Climent, Rosa M. Pérez-Clemente, and Aurelio Gómez-Cadenas. "Root Involvement in Plant Responses to Adverse Environmental Conditions." Agronomy 10, no. 7 (2020): 942. http://dx.doi.org/10.3390/agronomy10070942.

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Climate change is altering the environment in which plants grow and survive. An increase in worldwide Earth surface temperatures has been already observed, together with an increase in the intensity of other abiotic stress conditions such as water deficit, high salinity, heavy metal intoxication, etc., generating harmful conditions that destabilize agricultural systems. Stress conditions deeply affect physiological, metabolic and morphological traits of plant roots, essential organs for plant survival as they provide physical anchorage to the soil, water and nutrient uptake, mechanisms for str

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Minemba, David, Deirdre B. Gleeson, Erik Veneklaas, and Megan H. Ryan. "Variation in morphological and physiological root traits and organic acid exudation of three sweet potato (Ipomoea batatas) cultivars under seven phosphorus levels." Scientia Horticulturae 256 (October 2019): 108572. http://dx.doi.org/10.1016/j.scienta.2019.108572.

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Anderson, Hannah M., Grace A. Cagle, Erica L. W. Majumder, et al. "Root exudation and rhizosphere microbial assembly are influenced by novel plant trait diversity in carrot genotypes." Soil Biology and Biochemistry 197 (October 2024): 109516. http://dx.doi.org/10.1016/j.soilbio.2024.109516.

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Weston, Paul A., Shahnaj Parvin, Pieter-W. Hendriks, Saliya Gurusinghe, Greg J. Rebetzke, and Leslie A. Weston. "Impact of Year and Genotype on Benzoxazinoids and Their Microbial Metabolites in the Rhizosphere of Early-Vigour Wheat Genotypes in Southern Australia." Plants 14, no. 1 (2024): 90. https://doi.org/10.3390/plants14010090.

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Wheat (Triticum aestivum) is grown on more arable acreage than any other food crop and has been well documented to produce allelochemicals. Wheat allelochemicals include numerous benzoxazinoids and their microbially transformed metabolites that actively suppress growth of weed seedlings. Production and subsequent release of these metabolites by commercial wheat cultivars, however, has not yet been targeted by focussed breeding programmes seeking to develop more competitive crops. Recently, the Commonwealth Scientific and Industrial Organisation (CSIRO), through an extensive recurrent selection

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Singh, Chandan Kumar, Dharmendra Singh, Shristi Sharma, et al. "Mechanistic Association of Quantitative Trait Locus with Malate Secretion in Lentil (Lens culinaris Medikus) Seedlings under Aluminium Stress." Plants 10, no. 8 (2021): 1541. http://dx.doi.org/10.3390/plants10081541.

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Aluminium (Al) toxicity acts as a major delimiting factor in the productivity of many crops including lentil. To alleviate its effect, plants have evolved with Al exclusion and inclusion mechanisms. The former involves the exudation of organic acid to restrict the entry of Al3+ to the root cells while latter involves detoxification of entered Al3+ by organic acids. Al-induced secretion of organic acids from roots is a well-documented mechanism that chelates and neutralizes Al3+ toxicity. In this study, F6 recombinant inbred lines (RILs) derived from a cross between L-7903 (Al-resistant) and BM

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Mora-Córdova, Claudia Paola, Roser Tolrà, Rosa Padilla, et al. "Rhizosphere Acidification as the Main Trait Characterizing the Differential In Vitro Tolerance to Iron Chlorosis in Interspecific Pyrus Hybrids." Horticulturae 8, no. 6 (2022): 551. http://dx.doi.org/10.3390/horticulturae8060551.

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Physiological responses of different interspecific Pyrus hybrids and an open pollinated Pyrus communis ‘Williams’ (Pcw) grown under in vitro culture conditions simulating lime induced chlorosis were studied. The hybrids were derived from crosses between the ‘Pyriam’ pear rootstock and four Pyrus species of the Mediterranean region, namely P. amygdaliformis Vill. (Pa), P. amygdaliformis persica Bornme. (Pap), P. communis cordata (Desv.) Hook. (Pcc), and P. elaeagrifolia Pall (Pe), all known for their higher field tolerance to iron-chlorosis than P. communis. Twenty hybrids and one open pollinat

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39

Pickard, William F. "The riddle of root pressure. II. Root exudation at extreme osmolalities." Functional Plant Biology 30, no. 2 (2003): 135. http://dx.doi.org/10.1071/fp02036.

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To test the predictions of a recent theory of root pressure and exudation, exudation from detopped tomato seedlings was studied. Experimental findings were generally in qualitative accord with the theory. Two confirmed predictions are of particular interest. First, when a normally exuding stump was challenged by having its roots exposed to concentrated osmolyte, the exudation rate dropped quickly to zero but later often recovered to a higher level. Second, when exudation from a plant challenged by concentrated osmolyte did not recover, flushing the soil solution away with tap water usually res

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40

Gao, Yuqiu, Huimin Wang, Fengting Yang, et al. "Relationships among root exudation with root morphological and architectural traits vary with growing season." Tree Physiology, September 21, 2023. http://dx.doi.org/10.1093/treephys/tpad118.

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Abstract Plants allocate a substantial amount of carbon belowground for root exudates and for the construction and adjustment of root morphological and architectural traits. What relationships exist between root exudates and other root traits and how this relationship changes with growing season, however, remain unclear. We quantified root exudation rate, root morphological traits including total root length (RL), total root surface area (RS), root diameter (RD), specific root length (SRL), specific root area (SRA), and root tissue density (RTD), and architectural traits such as branching inte

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41

Li, Weibin, Hongxia Zhang, Yingyi Pu, and Fan Li. "Effects of drought on carbon-nitrogen dynamics in root exudates of Qinghai Spruce." Tree Physiology, July 21, 2025. https://doi.org/10.1093/treephys/tpaf085.

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Abstract Root exudates play a critical role in plant adaptation and the regulation of soil carbon and nutrient cycling, especially under climate change conditions. Despite their importance, the dynamics of root exudation under drought, particularly during drought-induced tree mortality, remain poorly understood. Here, we investigate how drought affects root exudation dynamics, root morphology traits, and non-structural carbohydrate (NSC) concentrations in Qinghai spruce (Picea crassifolia Kom.) seedlings across the progression of drought-induced mortality. We conducted a two-stage drought mani

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42

Yang, Han, Peipei Zhang, Qitong Wang, et al. "Temperature rather than N availability determines root exudation of alpine coniferous forests on the eastern Tibetan Plateau along elevation gradients." Tree Physiology, May 20, 2023. http://dx.doi.org/10.1093/treephys/tpad067.

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Abstract Root exudation fulfills fundamental roles in regulating carbon (C)-nutrient cycling in forest ecosystems, yet the main ecological drivers of root exudation and underlying mechanisms in forests under natural gradients remain poorly understood. Here, we investigated the intraspecific variation of root exudation rates in two alpine coniferous forests (Abies faxoniana and Abies georgei) along two elevation gradients on the eastern Tibetan Plateau. Meanwhile, the fine root traits and associated climate and soil parameters were assessed to examine the effects of elevation-dependent changes

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43

Zhang, Chengfu, Yinmei Cai, Qingxia Zhao, et al. "The quantification of root exudation by an in-situ method based on root morphology over three incubation periods." Frontiers in Plant Science 15 (August 16, 2024). http://dx.doi.org/10.3389/fpls.2024.1423703.

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Investigating the quantity and spatiotemporal dynamics of metabolite release from plant roots is essential if we are to understand the ecological significance of root exudates in the rhizosphere; however, this is difficult to quantify. In the present study, we quantified in situ root exudation rates during three incubation periods (0–24, 24–48, and 48–72 h) and fine roots within four diameter ranges (&lt;0.8, 0.8–1.0, 1.0–1.2, and 1.2–2.0 mm), and also measured nine morphological traits in the fine roots of Pinus massoniana. Higher root carbon (C) exudation rates were detected during the 0

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44

Maitra, Pulak, Katarzyna Hrynkiewicz, Agnieszka Szuba, et al. "Metabolic niches in the rhizosphere microbiome: dependence on soil horizons, root traits and climate variables in forest ecosystems." Frontiers in Plant Science 15 (April 5, 2024). http://dx.doi.org/10.3389/fpls.2024.1344205.

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Abstract (sommario):

Understanding belowground plant-microbial interactions is important for biodiversity maintenance, community assembly and ecosystem functioning of forest ecosystems. Consequently, a large number of studies were conducted on root and microbial interactions, especially in the context of precipitation and temperature gradients under global climate change scenarios. Forests ecosystems have high biodiversity of plants and associated microbes, and contribute to major primary productivity of terrestrial ecosystems. However, the impact of root metabolites/exudates and root traits on soil microbial func

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45

von Haden, Adam C., William C. Eddy, Mark B. Burnham, Edward R. Brzostek, Wendy H. Yang, and Evan H. DeLucia. "Root exudation links root traits to soil functioning in agroecosystems." Plant and Soil, January 23, 2024. http://dx.doi.org/10.1007/s11104-024-06491-3.

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46

Robert, Christelle Aurélie Maud, Paul Himmighofen, Sarah McLaughlin, et al. "Environmental and Biological Drivers of Root Exudation." Annual Review of Plant Biology, March 10, 2025. https://doi.org/10.1146/annurev-arplant-083123-082752.

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Abstract (sommario):

Root exudation is the process by which plants release organic and inorganic metabolites from their roots into the surrounding soil. Root exudation is a dynamic process and shapes plant–environment interactions at the root–soil interface. Little is known about the biological and environmental factors that shape the exuded metabolome, hereafter referred to as the exudome, despite its importance in structuring soil processes. Here, we emphasize plant physiological and morphological traits that modulate the exudome in a species- and developmental stage–specific manner. We further discuss how envir

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47

Pu, Zitian, Ruifang Zhang, Hong Wang, Qingyun Li, Jianheng Zhang, and Xin-Xin Wang. "Root morphological and physiological traits and arbuscular mycorrhizal fungi shape phosphorus-acquisition strategies of 12 vegetable species." Frontiers in Plant Science 14 (May 8, 2023). http://dx.doi.org/10.3389/fpls.2023.1150832.

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Abstract (sommario):

Trait plasticity and integration mediate vegetable adaptive strategies. However, it is unclear how patterns of vegetables in root traits influence vegetable adaptation to different phosphorus (P) levels. Nine root traits and six shoot traits were investigated in 12 vegetable species cultivated in a greenhouse with low and high P supplies to identify distinct adaptive mechanisms in relation to P acquisition (40 and 200 P mg kg-1 as KH2PO4). At the low P level, a series of negative correlations among root morphology, exudates and mycorrhizal colonization, and different types of root functional p

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Zhang, Deshan, Yuqiang Zhang, Zheng Zhao, et al. "Carbon–Phosphorus Coupling Governs Microbial Effects on Nutrient Acquisition Strategies by Four Crops." Frontiers in Plant Science 13 (July 5, 2022). http://dx.doi.org/10.3389/fpls.2022.924154.

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Abstract (sommario):

Plants adjust root morphological and/or exudation traits in response to phosphorus (P) mobilization mediated by microorganisms. We hypothesized that straw application coupled with P fertilization would influence microbial P and then root nutrient-acquisition strategies related to crop growth. Root morphological (length and average diameter) and exudation traits (acid phosphatase and carboxylates) of Brassica chinensis, Solanum lycopersicum, Lactuca sativa, and Vigna unguiculata in response to microbial P dynamics were characterized in no-P and P-fertilized soil with/without straw addition. Str

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49

Mahanta, Mayurakshee, Noren Singh Konjengbam, Reginah Pheirim, Andrean Allwin Lyngdoh, and S. MD Basid Ali. "Screening and Identification of Aluminium Toxicity Tolerant Lentil (Lens culinaris Medik.) RILs based on Root Growth Studies and Organic Acid Exudation under Hydroponics." LEGUME RESEARCH - AN INTERNATIONAL JOURNAL, Of (October 9, 2024). http://dx.doi.org/10.18805/lr-5359.

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Abstract (sommario):

Background: Aluminium (Al) stress is among the prime limitations of crop production including Lentil, in acidic soils as Al solubilizes into phytotoxic forms at low pH causing root growth inhibition, minimizing plant-vigor and yield. The current study was performed to identify the Al tolerant RILs based on root-regrowth studies, short term growth culture and organic acid exudation in reaction to Al toxicity under hydroponics. Methods: The study involved screening for Al toxicity tolerance in recombinant inbred lines (RILs) population of lentil through root re-growth studies, short term growth

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50

Holz, Maire, Mohsen Zarebanadkouki, Pascal Benard, Mathias Hoffmann, and Maren Dubbert. "Root and rhizosphere traits for enhanced water and nutrients uptake efficiency in dynamic environments." Frontiers in Plant Science 15 (July 31, 2024). http://dx.doi.org/10.3389/fpls.2024.1383373.

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Abstract (sommario):

Modern agriculture’s goal of improving crop resource acquisition efficiency relies on the intricate relationship between the root system and the soil. Root and rhizosphere traits play a critical role in the efficient use of nutrients and water, especially under dynamic environments. This review emphasizes a holistic perspective, challenging the conventional separation of nutrient and water uptake processes and the necessity for an integrated approach. Anticipating climate change-induced increase in the likelihood of extreme weather events that result in fluctuations in soil moisture and nutrie

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