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Artículos de revistas sobre el tema "Nutrient toxicity"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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1

Steffens, D., B. W. Hütsch, T. Eschholz, T. Lošák, and S. Schubert. "Water logging may inhibit plant growth primarily by nutrient deficiency rather than nutrient toxicity." Plant, Soil and Environment 51, No. 12 (November 20, 2011): 545–52. http://dx.doi.org/10.17221/3630-pse.

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The aim of our experiments was to investigate whether nutrient deficiency or toxicity is the cause for growth inhibition of wheat and barley in waterlogged soils. Experiments using two soils (top and subsoil) differing largely in various characteristics revealed a growth inhibition of wheat and barley in the case of subsoil due to water logging, without Fe or Mn toxicity. Water culture experiments with anaerobic (N<sub>2</sub>) and aerobic aeration confirmed that oxygen deficiency did not induce nutrient toxicity (Fe, Mn) but caused sub-optimum nutrient supply (N, P, K, Mn, Cu, Zn)

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2

Khan, Mohd Kamran, Anamika Pandey, Mehmet Hamurcu, Mateja Germ, Fatma Gokmen Yilmaz, Merve Ozbek, Zuhal Zeynep Avsaroglu, Ali Topal, and Sait Gezgin. "Nutrient Homeostasis of Aegilops Accessions Differing in B Tolerance Level under Boron Toxic Growth Conditions." Biology 11, no. 8 (July 22, 2022): 1094. http://dx.doi.org/10.3390/biology11081094.

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Boron (B) is a crucial microelement for several biological processes in plants; however, it becomes hazardous when present in excess in the soil. B toxicity adversely affects the wheat yield all around the world, particularly in the arid and semiarid regions. Aegilops, the nearest wild wheat relatives, could be an efficient source to develop B toxicity tolerance in modern cultivars. However, to potentially utilize these species, it is necessary to understand the underlying mechanisms that are involved in providing them tolerance. Other than hampering cellular and physiological activities, high

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3

Pandey, Meena, Jiban Shrestha, Subash Subedi, and Kabita Kumari Shah. "ROLE OF NUTRIENTS IN WHEAT: A REVIEW." Tropical Agrobiodiversity 1, no. 1 (June 18, 2020): 18–23. http://dx.doi.org/10.26480/trab.01.2020.18.23.

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Wheat (Triticum aestivum L.) is an important cereal crop that provides ample nutritious calories for humans and animals. The nutrient plays a vital role in the production of wheat. In this review, previous works were evaluated to investigate the role of nutrients, nutrient deficiency and toxicity in wheat. Both macro and micronutrients are necessary for wheat plants. Every nutrient has its own character and is involved in different metabolic processes of plant life. Nutrient deficiency and toxicity conditions inhibit normal plant growth and exhibit characteristic symptoms. For optimal growth,

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4

Mueller, Danica C., James S. Bonner, Robin L. Autenrieth, Kenneth Lee, and Kenneth Doe. "The Toxicity of Oil-Contaminated Sediments During Bioremediation of a Wetland." International Oil Spill Conference Proceedings 1999, no. 1 (March 1, 1999): 1049–52. http://dx.doi.org/10.7901/2169-3358-1999-1-1049.

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ABSTRACT Inorganic nutrients were applied to oiled wetland sediments during an experiment to assess the effect of enhanced bioremediation on petroleum degradation and toxicity reduction. For a period of 6 months after the controlled application of oil to experimental plots, oiled wetland sediment samples were tested for acute toxicity. The three treatments evaluated were an oiled control, inorganic nutrient addition, and inorganic nutrient addition plus an alternate electron acceptor. Sediment toxicity was assessed using Microtox® and amphipod bioassays. The Microtox® 100% Test detected signif

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5

Dolling, PJ, WM Porter, and AD Robson. "Effect of soil acidity on barley production in the south-west of Western Australia. 1. The interaction between lime and nutrient application." Australian Journal of Experimental Agriculture 31, no. 6 (1991): 803. http://dx.doi.org/10.1071/ea9910803.

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The effect of soil acidity on barley growth in Western Australia and the role of aluminium toxicity and nutrient deficiencies were examined at 9 sites using 5 application rates of lime and 3 levels of supply of nutrients. Nutrient plant analysis was also used to assess the mechanisms involved in any response to lime.Lime application increased barley yields at 3 sites, by 9-30%, by alleviating aluminium toxicity. Nutrient treatments did not interact with the lime response. The largest reduction in grain yield (>15%) that was due to aluminium toxicity occurred at the site which had the lowest

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6

Schier, George A., and Carolyn J. McQuattie. "Response of ectomycorrhizal and nonmycorrhizal pitch pine (Pinusrigida) seedlings to nutrient supply and aluminum: growth and mineral nutrition." Canadian Journal of Forest Research 26, no. 12 (December 1, 1996): 2145–52. http://dx.doi.org/10.1139/x26-243.

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Mycorrhizal colonization and nutrient supply may have important effects on aluminum toxicity in trees grown on acidic, nutrient-poor soils. The interacting effects of mycorrhizal inoculation, nutrient level, and Al treatment on growth and mineral nutrition of pitch pine (Pinusrigida Mill.) seedlings grown with and without the ectomycorrhizal fungus Pisolithustinctorius (Pers.) Coker & Couch were determined. The seedlings were grown for 66 days in sand irrigated with 0.1- or 0.2-strength nutrient solution (pH 3.8) containing 0, 10, or 20 mg/L Al (0, 0.37, or 0.74 mM). Across nutrient and Al

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7

Choi, Jong‐Myung, Chun‐Ho Pak, and Chiwon W. Lee. "Micro nutrient toxicity in French marigold." Journal of Plant Nutrition 19, no. 6 (June 1996): 901–16. http://dx.doi.org/10.1080/01904169609365169.

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8

Cockson, Paul, Hunter Landis, Turner Smith, Kristin Hicks, and Brian E. Whipker. "Characterization of Nutrient Disorders of Cannabis sativa." Applied Sciences 9, no. 20 (October 18, 2019): 4432. http://dx.doi.org/10.3390/app9204432.

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Essential plant nutrients are needed at crop-specific concentrations to obtain optimum growth or yield. Plant tissue (foliar) analysis is the standard method for measuring those levels in crops. Symptoms of nutrient deficiency occur when those tissue concentrations fall to a level where growth or yield is negatively impacted and can serve as a visual diagnostic tool for growers and researchers. Both nutrient deficiency symptoms and their corresponding plant tissue concentrations have not been established for cannabis. To establish nutrient concentrations when deficiency or toxicity symptoms ar

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9

Munthe, Bonardo Vebry, Irwan Agusnu Putra, and Dedi Kurniawan. "Defisiensi dan Toksisitas Hara Magnesium Tanaman Padi Gogo (Oryza Sativa L.) Pada Lapisan Tanah Subsoil." JINTAN : Jurnal Ilmiah Pertanian Nasional 2, no. 2 (July 28, 2022): 129. http://dx.doi.org/10.30737/jintan.v2i2.2816.

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In increasing the production and quality of rice plants, it is essential to pay attention to proper nutrient management. One of the most important nutrients in increasing rice production and quality is magnesium, tested with deficiency and toxicity treatments in subsoil soils. This study used a factorial randomized block design with two factors where each treatment was repeated three times. First factor included Nutrient toxicity Mg, T0 = 0 (control), T1 = 2.2 g/polybag, T2 = 4.4 g/polybag, T3 = 8.8 g/polybag. Second factor included Mg nutrient deficiency D0 = 0 (control), D1 = 0.56 g/polybag,

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10

RUSSELLE, M. P., and R. L. McGRAW. "NUTRIENT STRESS IN BIRDSFOOT TREFOIL." Canadian Journal of Plant Science 66, no. 4 (October 1, 1986): 933–46. http://dx.doi.org/10.4141/cjps86-115.

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Birdsfoot trefoil (Lotus corniculatus L.) is often grown on poorly drained, low fertility, and low pH soils under marginal management. The objective of this research was to document several aspects of single nutrient stresses in birdsfoot trefoil. Plants were grown hydroponically in the glasshouse through two vegetative cycles and one reproductive growth cycle. Nutrient deficient treatments included P, K, Ca, Mg, S, B, Fe, Mn, Zn, Cu and Mo; toxicity treatments included B, Mn, Zn, Cu and Mo. Dry mass of shoots, shoot branching, and leaf area were typically lower in stressed plants than in plan

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11

Bagale, Suman. "Nutrient Management for Soybean Crops." International Journal of Agronomy 2021 (September 6, 2021): 1–10. http://dx.doi.org/10.1155/2021/3304634.

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Soybean is one of the most important pulse crops in the world which supplies most of the protein and oil requirements. The efficient production of soybean crops is a constraint, with several biotic factors, abiotic factors, and crop management practices. Nutrient management is one of the important aspects for achieving higher production of crops. Effective nutrient management helps to assure the required nutrients needed for the plant without causing a significant decrease in the yield of crops. In addition to this, managing the nutrient efficiently helps the crop to cope with several types of

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12

Baligar, V. C., N. K. Fageria, and M. A. Elrashidi. "Toxicity and Nutrient Constraints on Root Growth." HortScience 33, no. 6 (October 1998): 960–65. http://dx.doi.org/10.21273/hortsci.33.6.960.

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13

Roche, E., I. Maestre, F. Martín, E. Fuentes, J. Casero, J. A. Reig та B. Soria. "Nutrient toxicity in pancreatic β-cell dysfunction". Journal of Physiology and Biochemistry 56, № 2 (червень 2000): 119–28. http://dx.doi.org/10.1007/bf03179907.

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14

Mandal, Arindam, Saswati Biswas, and Samares Pal. "Toxicity-mediated regime shifts in a contaminated nutrient–plankton system." Chaos: An Interdisciplinary Journal of Nonlinear Science 33, no. 2 (February 2023): 023106. http://dx.doi.org/10.1063/5.0122206.

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In this article, we contemplate the dynamics of a three-tier system of nutrient, phytoplankton, and zooplankton with a gestation delay of discrete type and a distributed delay in nutrient recycling. Phytoplankton secretion-mediated alteration in the grazing pattern of zooplankton is encapsulated by a Monod–Haldane functional response. We carry out global sensitivity analysis for identifying the crucial model parameters having a significant impact on zooplankton density. The system potentially exhibits bistable configurations under identical ecological conditions by allowing different bifurcati

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15

Sahrawat, K. L., C. K. Mulbah, S. Diatta, R. D. Delaune, W. H. Patrick, B. N. Singh, and M. P. Jones. "The role of tolerant genotypes and plant nutrients in the management of iron toxicity in lowland rice." Journal of Agricultural Science 126, no. 2 (March 1996): 143–49. http://dx.doi.org/10.1017/s002185960007307x.

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SUMMARYIron toxicity is a nutrient disorder associated with high concentrations of iron in soil solutions. Deficiencies of other nutrients, such as P, K, Ca, Mg and Zn, have been implicated in its occurrence in rice plants. Field experiments were carried out in 1992 and 1993 in Ivory Coast to evaluate the iron toxicity tolerance of promising rice cultivars available in West Africa, and to provide additional information for selecting breeding materials. Two sites, differing in their potential to cause iron toxicity, were used. Glasshouse and field studies were also conducted to test the role of

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16

Jahan, Badar, Faisal Rasheed, Zebus Sehar, Mehar Fatma, Noushina Iqbal, Asim Masood, Naser A. Anjum, and Nafees A. Khan. "Coordinated Role of Nitric Oxide, Ethylene, Nitrogen, and Sulfur in Plant Salt Stress Tolerance." Stresses 1, no. 3 (September 8, 2021): 181–99. http://dx.doi.org/10.3390/stresses1030014.

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Salt stress significantly contributes to major losses in agricultural productivity worldwide. The sustainable approach for salinity-accrued toxicity has been explored. The use of plant growth regulators/phytohormones, mineral nutrients and other signaling molecules is one of the major approaches for reversing salt-induced toxicity in plants. Application of the signaling molecules such as nitric oxide (NO) and ethylene (ETH) and major mineral nutrient such as nitrogen (N) and sulfur (S) play significant roles in combatting the major consequences of salt stress impacts in plants. However, the li

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17

Bailey, Douglas A., and P. Allen Hammer. "Evaluation of Nutrient Deficiency and Micronutrient Toxicity Symptoms in Florists’ Hydrangea." Journal of the American Society for Horticultural Science 113, no. 3 (May 1988): 363–67. http://dx.doi.org/10.21273/jashs.113.3.363.

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Abstract Nutrient imbalances were investigated to a) document nutrient deficiency and micronutrient toxicity symptoms in florists’ hydrangea (Hydrangea macrophylla Thunb.) and b) examine the possible relationship of single-element deficiencies and toxicities with a foliar malformation prevelant on hydrangeas grown at >30°C. Plants subjected to N, P, K, Ca, Mg, S, B, Fe, and Zn deficiency and B and Mn toxicity treatments produced visual symptoms of the corresponding nutrient imbalance. Visual symptoms did not develop in +Fe, +Cu, +Zn, +Mo, −Mn, −Cu, and −Mo treatments. None of the symptoms i

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18

Pak, Chun-Ho, and Chiwon W. Lee. "MICRONUTRIENT TOXICITY IN PETUNIA HYBRIDA." HortScience 27, no. 6 (June 1992): 687e—687. http://dx.doi.org/10.21273/hortsci.27.6.687e.

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Foliar micronutrient toxicity symptoms of Petunia hybrida `Ultra Crimson Star' were induced by elevated levels (from 0.25 to 6 mM) of boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn) in the nutrient solution. Foliar toxicity symptoms of most micronutrients (except Fe) were characterized by leaf yellowing, interveinal chlorosis, and marginal necrosis. Mo toxicity was most severe. Leaf abnormality was not induced by Fe in the concentration range tested. Visible foliar toxicity symptoms developed when nutrient solution contained 5.4, 32, 28, 24, and 16 mg· liter-1,

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19

Kuswantoro, Heru. "Nutrient uptake of soybean genotypes under aluminum toxicity." Italian Journal of Agronomy 9, no. 3 (September 23, 2014): 136. http://dx.doi.org/10.4081/ija.2014.600.

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20

PROIETTO, J. "Mechanisms of insulin resistance caused by nutrient toxicity." Hepatology Research 33, no. 2 (October 2005): 87–91. http://dx.doi.org/10.1016/j.hepres.2005.09.010.

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21

Roper, Teryl R., and Armand R. Krueger. "Toxicity of Minor and Micronutrients in Cranberry." HortScience 33, no. 3 (June 1998): 468c—468. http://dx.doi.org/10.21273/hortsci.33.3.468c.

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Cranberry showed significant yield response to applied fertilizer. Some growers apply large quantities of some minor and micronutrients in an effort to increase yields. Tissue levels for nutrient sufficiency and excess have been determined in cranberry, but toxicity levels have not been determined. We exposed rooted cuttings of `Stevens' cranberry (Vaccinium macrocarpon Ait.) to high concentrations of individual nutrients in solution culture and then aeroponics. Shoot boron concentration rose rapidly, but not root concentration. At 300 ppm boron, leaf necrosis appeared and dry weight accumulat

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22

Matar, A., W. L. Berry, C. L. Mackowiak, G. W. Stutte, R. M. Wheeler, and J. C. Sager. "Tissue Nutrient Content Dynamics of Wheat and Potato Grown under Highly Productive Field and Hydroponic Conditions." HortScience 30, no. 4 (July 1995): 791A—791. http://dx.doi.org/10.21273/hortsci.30.4.791a.

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Tissue nutrient (element) content profiles were determined for wheat and potato plants grown hydroponically (NFT) in NASA's Biomass Production Chamber (20 m2) using a complete nutrient solution with electrical conductivity maintained at 0.12 S·m–1. Profiles were compared to patterns of nutrient accumulation during vegetative stages reported for highly productive wheat and potatoes grown in the field under a wide range of conditions. Among the essential elements, differences between the hydroponically and field-grown crops were observed only for Ca, Mg, and Mn in the recently mature leaves, and

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23

Cole, David L., Savannah J. Kobza, Savannah R. Fahning, Samuel H. Stapley, Dicken K. A. Bonsrah, Rachel L. Buck, and Bryan G. Hopkins. "Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution." Agronomy 11, no. 3 (March 11, 2021): 523. http://dx.doi.org/10.3390/agronomy11030523.

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Hydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients for unique species’ needs and/or to create multiple nutrient deficiencies within the same study. However, this is challenging to do with traditional solutions as nutrients are generally added as dual nutrient salts, such as when varying phosphorus (P) concentration also affects nitrogen concentration; potentially, the chemical form of the nutrient taken up when ammonium phosphate is the source for P. This can create unintended consequences with nutrients other than those intended

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Romero Rosales, Kimberly, Gurpreet Singh, Kevin Wu, Jie Chen, Matthew R. Janes, Michael B. Lilly, Eigen R. Peralta, et al. "Sphingolipid-based drugs selectively kill cancer cells by down-regulating nutrient transporter proteins." Biochemical Journal 439, no. 2 (September 28, 2011): 299–311. http://dx.doi.org/10.1042/bj20110853.

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Cancer cells are hypersensitive to nutrient limitation because oncogenes constitutively drive glycolytic and TCA (tricarboxylic acid) cycle intermediates into biosynthetic pathways. As the anaplerotic reactions that replace these intermediates are fueled by imported nutrients, the cancer cell's ability to generate ATP becomes compromised under nutrient-limiting conditions. In addition, most cancer cells have defects in autophagy, the catabolic process that provides nutrients from internal sources when external nutrients are unavailable. Normal cells, in contrast, can adapt to the nutrient stre

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Elemike, Elias, Ifeyinwa Uzoh, Damian Onwudiwe, and Olubukola Babalola. "The Role of Nanotechnology in the Fortification of Plant Nutrients and Improvement of Crop Production." Applied Sciences 9, no. 3 (February 1, 2019): 499. http://dx.doi.org/10.3390/app9030499.

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Nutrient deficiency in food crops is seriously affecting human health, especially those in the rural areas, and nanotechnology may become the most sustainable approach to alleviating this challenge. There are several ways of fortifying the nutrients in food such as dietary diversification, use of drugs and industrial fortification. However, the affordability and sustainability of these methods have not been completely achieved. Plants absorb nutrients from fertilizers, but most conventional fertilizers have low nutrient use and uptake efficiency. Nanofertilizers are, therefore, engineered to b

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26

Q. Brearley, Francis. "Root Mass and Elemental Concentrations in an Irish Oak Woodland." Science & Technology Journal 8, no. 2 (July 1, 2020): 5–7. http://dx.doi.org/10.22232/stj.2020.08.02.01.

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Fine roots (< 2 mm diameter) are key for nutrient and carbon cycling in forests but less well studied for oak than other European trees. To better understand controls on root mass and nutrient concentrations in oak stands, a study was conducted at Glendalough in Ireland. Roots were removed from soils and measured for biomass, length and nutrient concentrations along with soil nutrients. Fine root mass was 360 gm-2 and comparable to other oak stands. Whilst root N concentrations were high, P concentrations were low and N, P, K, Mg, but not C or Ca were at greater concentrations in fine roots

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27

Barnes, Jared, Brian Whipker, Ingram McCall, and Jonathan Frantz. "Nutrient Disorders of ‘Evolution’ Mealy-cup Sage." HortTechnology 22, no. 4 (August 2012): 502–8. http://dx.doi.org/10.21273/horttech.22.4.502.

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To produce floriculture crops like mealy-cup sage (Salvia farinacea), growers must be equipped with cultural information including the ability to recognize and characterize nutrient disorders. ‘Evolution’ mealy-cup sage plants were grown in silica-sand culture to induce, describe, and photograph symptoms of nutritional disorders. Plants received a complete modified Hoagland's all-nitrate solution of (macronutrient concentrations in millimoles) 15 nitrate-nitrogen (N), 1.0 phosphorus (P), 6.0 potassium (K), 5.0 calcium (Ca), 2.0 magnesium (Mg), and 2.0 sulfur (S) plus (micronutrient concentrati

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Schier, George A., and Carolyn J. Mcquattie. "Effect of aluminum on the growth, anatomy, and nutrient content of ectomycorrhizal and nonmycorrhizal eastern white pine seedlings." Canadian Journal of Forest Research 25, no. 8 (August 1, 1995): 1252–62. http://dx.doi.org/10.1139/x95-138.

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Effect of aluminum (Al) on the growth, anatomy, and nutrient content of eastern white pine (Pinusstrobus L.) was determined by growing newly germinated seedlings for 12 weeks in sand irrigated with nutrient solution (pH 3.8) containing 0, 12.5, 25, 50, 75, or 100 mg/L of Al. To determine the influence of mycorrhizal infection on Al toxicity, half of the seedlings were inoculated with the ectomycorrhizal fungus Pisolithustinctorius (Pers.) Coker & Couch. Across Al concentrations, shoot growth (height, needle length, biomass) but not root growth (lateral root length, biomass) was significant

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OLALEYE, Adesola Olutayo, Ayoade Olayiwola OGUNKUNLE, Baij Nath SINGH, Festus Olugbenga ODELEYE, Oyeyemi Adigun DADA, and Bolarinwa Ayoola SENJOBI. "Elemental Composition of Two Rice Cultivars under Potentially Toxic an Aquept and Aquent." Notulae Scientia Biologicae 1, no. 1 (December 7, 2009): 46–49. http://dx.doi.org/10.15835/nsb113470.

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Iron toxicity is a major nutrient disorder affecting rice production of wetland rice in the irrigated and rainfed ecosystem in West Africa sub-region. Little attention has been paid to evaluating nutrient contents of rice cultivars grown on such soils and their relationship to the iron toxicity scores, grain yield and dry matter yields. A pot experiment was conducted on two potentially Fe-toxic soils (Aeric Fluvaquent and Aeric Tropaquept). The experiment was a 2 x 2 x 4 factorial experiment with three replicates in arranged in a randomized fashion. The factors were two soil types, two rice cu

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Iswahyudi, Bagus, and Bakri Bakri. "Pemetaan Status Unsur Hara Fosfor Perkebunan Kelapa Sawit Rakyat di Kelurahan Babat Sumatera Selatan." Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 8, no. 1 (January 17, 2019): 77–85. http://dx.doi.org/10.33230/jlso.8.1.2019.408.

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Iswahyudi et al, 2019. Oil Palm Plantation’s Phosporous Mineral Mapping on Babat District South Sumatera. JLSO 8(1):77-85. Soil nutrient status mapping was not initiated which lead to inefficiency in fertilization. Fertilizition without nutrient analysis could lead to nutrient deficiency or toxicity of nutrint. The Purpose of this research was to identify, map the nutrient status and fertilization recomendation of phosporous nutrient status in public oil palm plantation at Babat Village Babat Toman Districts Musi Banyuasin District South Sumatera Province. This research used a detailed survey

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Lee, Kyu-Min, Chiwon W. Lee, and Murray E. Duysen. "Induced Iron Toxicity in Chinese Cabbage and Leaf Lettuce." HortScience 30, no. 4 (July 1995): 864C—864. http://dx.doi.org/10.21273/hortsci.30.4.864c.

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The influences of elevated nutrient solution Fe++ concentrations on tissue iron contents and toxicity symptom development in Chinese cabbage and leaf lettuce were investigated. Seedling plants established in peat-lite mix in 15-cm plastic pots were fertilized with nutrient solutions containing 0 to 10 mM Fe++ for 6 weeks. Both Chinese cabbage and leaf lettuce produced dark leaf spots on plants grown with 5 mM or higher Fe++ concentrations. Biomass yields were reduced when leaf tissue iron contents in Chinese cabbage and leaf lettuce, respectively, were 551 mg·kg–1 and 379 mg·kg–1 or higher on

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Yang, Tao-Yu, Li-Ya Cai, Yi-Ping Qi, Lin-Tong Yang, Ning-Wei Lai, and Li-Song Chen. "Increasing Nutrient Solution pH Alleviated Aluminum-Induced Inhibition of Growth and Impairment of Photosynthetic Electron Transport Chain in Citrus sinensis Seedlings." BioMed Research International 2019 (August 27, 2019): 1–17. http://dx.doi.org/10.1155/2019/9058715.

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Although the physiological and molecular responses of Citrus to Al-toxicity or low pH have been examined in some details, little information is available on Citrus responses to pH and aluminum (Al) interactions. Citrus sinensis seedlings were irrigated for 18 weeks with nutrient solution at a concentration of 0 or 1 mM AlCl3•6H2O and a pH of 2.5, 3.0, 3.5, or 4.0. Thereafter, biomass, root, stem, and leaf concentrations of Al and nutrients, leaf gas exchange, chlorophyll a fluorescence (OJIP) transients, and related parameters were investigated to understand the physiological mechanisms underl

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Jie Yang, Ming, Xiao E Yang, and Volker Römheld. "GROWTH AND NUTRIENT COMPOSITION OFELSHOLTZIA SPLENDENSNAKAI UNDER COPPER TOXICITY." Journal of Plant Nutrition 25, no. 7 (July 11, 2002): 1359–75. http://dx.doi.org/10.1081/pln-120005395.

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Turhadi, Miftahuddin, Hamim, and Munif Ghulamahdi. "The Effectiveness of Nutrient Culture Solutions with Agar Addition as An Evaluation Media of Rice Under Iron Toxicity Conditions." BIOEDUSCIENCE 5, no. 1 (April 30, 2021): 24–29. http://dx.doi.org/10.22236/j.bes/516395.

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Background: Evaluation of the tolerance level of rice to iron (Fe) toxicity stress can be done using a hydroponic system in a nutrient culture solution under a controlled condition. This study aimed to obtain a nutrient culture solution that effective as a medium for evaluating the response of rice under Fe toxicity stress condition. Methods: This experiment was carried out by comparing the effectiveness of three kinds of nutrient culture media, namely Yoshida’s Half-Strength solution (HSY), Yoshida’s Half-Strength + 0.2% agar solution (HSYA), and Yoshida’s Full-Strength + 0.2% agar solution (

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Kerr, Skyler M., Elmer W. Gray, and Darold Batzer. "Evaluation of Larval Medium in the Controlled Current Toxicity Test." Journal of the American Mosquito Control Association 35, no. 4 (December 1, 2019): 295–98. http://dx.doi.org/10.2987/19-6837.1.

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ABSTRACT The Controlled Current Toxicity Test (CCTT) is a protocol used by the University of Georgia Black Fly Rearing and Bioassay Laboratory to evaluate the efficacy of larvicides based on Bacillus thuringiensis subsp. israelensis (Bti) against Simulium vittatum larvae. A standard CCTT provides a larval medium with suspended organic nutrients, a sustained current, and a clean surface for black fly larval attachment in each exposure vessel. In an effort to streamline the CCTT and eliminate a potential source of variability, 3 types of larval medium were evaluated: deionized water, distilled w

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Almeida-Cortez, J. S., B. Shipley, and J. T. Arnason. "Growth and chemical defense in relation to resource availability: tradeoffs or common responses to environmental stress?" Brazilian Journal of Biology 64, no. 2 (May 2004): 187–94. http://dx.doi.org/10.1590/s1519-69842004000200002.

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One aspect of plant defense is the production of constitutive secondary compounds that confer toxicity on herbivores and pathogens. The purpose of this study was to compare patterns of plant tissue toxicity across gradients of irradiance and nutrient content. We measured the potential toxicity (1/LC50) of extracts of six species of herbaceous Asteraceae grown under controlled conditions of temperature (25ºC), humidity (80%), photoperiod (16 h/day), in a range of concentrations of a modified Hoagland hydroponic solution (full-strength, 1/5 dilute, 1/10 dilute, and 1/50 dilute) and under two dif

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Cockson, Paul, Josh B. Henry, Ingram McCall, and Brian E. Whipker. "Nutrient Disorders of ‘Orchestra Pink’ Gloxinia." HortTechnology 27, no. 6 (December 2017): 789–93. http://dx.doi.org/10.21273/horttech03833-17.

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To produce popular floriculture crops, such as gloxinia (Sinningia speciosa), growers must be equipped with cultural information including the ability to recognize and characterize disorders. Diagnostic criteria for nutrient disorders of gloxinia are absent from current literature. Therefore, gloxinia plants were grown in silica-sand culture to induce, characterize, and photograph symptoms of nutritional disorders. Control plants received a complete modified Hoagland’s all-nitrate solution, whereas nutrient-deficient treatments were induced with a complete nutrient formula minus a single nutri

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38

Kitajima, Toshihiko, and Yasunori Chiba. "Selenomethionine metabolism and its toxicity in yeast." BioMolecular Concepts 4, no. 6 (December 1, 2013): 611–16. http://dx.doi.org/10.1515/bmc-2013-0033.

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AbstractThe importance of selenium for organisms can be explained by its existence as selenocysteine in the catalytic centers of glutathione peroxidase and thioredoxin reductase. Another selenoamino acid, selenomethionine, is the major form of selenium in foods, and organisms that require selenium as a nutrient directly metabolize selenomethionine to a reactive form of selenium or store it in general proteins. Selenium is recognized as an essential nutrient for human and animal health; however, its excessive uptake harms mammals and the cytotoxic mechanism of selenium remains unclear. Recent p

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Freitas, Lucas B. de, Dirceu M. Fernandes, Suelen C. M. Maia, Arianne Moniz, Beatriz G. Mazziero, and Fábio Steiner. "Sources and doses of aluminum in experiments with rice in nutrient solution." Revista Brasileira de Engenharia Agrícola e Ambiental 23, no. 7 (July 2019): 511–17. http://dx.doi.org/10.1590/1807-1929/agriambi.v23n7p511-517.

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ABSTRACT The aluminum source to produce toxicity in upland rice in nutrient solution experiments is not yet well established, althought the aluminum potassium sulfate has been utilized source to produce aluminum toxicity. However, in recent studies have used aluminum chloride. The aim of this study was to evaluate the capacity of aluminum sources and doses to produce toxicity in upland rice plants grown in nutrient solution. The experiment was arranged in a block randomized design, in a 2 x 5 factorial scheme and four repetitions. The treatments were two aluminum sources (aluminum potassium su

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40

Barr, Susan I. "Introduction to Dietary Reference Intakes." Applied Physiology, Nutrition, and Metabolism 31, no. 1 (February 1, 2006): 61–65. http://dx.doi.org/10.1139/h05-019.

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Dietary Reference Intakes (DRIs) are nutrient reference standards used for planning and assessing the diets of apparently healthy Canadians and Americans. The development of DRIs reflects a joint initiative by the United States and Canada to update, expand on, and replace the former Recommended Nutrient Intakes for Canadians and Recommended Dietary Allowances for Americans. DRIs include the Estimated Average Requirement (EAR), Recommended Dietary Allowance (RDA), Adequate Intake (AI), and Tolerable Upper Intake Level (UL). The EAR is the average daily intake level that meets the requirement of

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41

Jibril, Sani Ahmad, Siti Aishah Hassan, Che Fauziah Ishak, and Puteri Edaroyati Megat Wahab. "Cadmium Toxicity Affects Phytochemicals and Nutrient Elements Composition of Lettuce (Lactuca sativa L.)." Advances in Agriculture 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/1236830.

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Lettuce varieties Bombilasta BBL and Italian 167 were treated with different concentrations of cadmium (0, 3, 6, 9, and 12 mg/L) in a nutrient film technique (NFT) system to study its toxicity on phytochemicals and nutrient elements. Antioxidants analysis which employed DPPH and FRAP, flavonoids, phenolic, vitamin C, malondialdehyde (MDA), and proline indicated significant effects of Cd treatment on the varieties tested. Different concentration levels of Cd lead to positive interactions in FRAP, phenolic, and MDA but no significant effect in flavonoids, vitamin C, and proline. Contents of macr

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Bercz, J. P. "Endocrine Toxicity of Drinking Water Disinfectants. I. In Vivo Dehalogenation and Clearance of Iodinated Nutrients." Journal of the American College of Toxicology 10, no. 5 (September 1991): 525–32. http://dx.doi.org/10.3109/10915819109078649.

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Ingestion of aqueous chlorine-based disinfectants has been shown earlier to cause decreased serum thyroxine levels and increased 131-I thyroid uptake in nonhuman primates. Disinfectants also were shown to immobilize iodine on gastric mucosa and cause covalent binding of dietary iodide to gastrointestinal contents in laboratory rodents. It has been demonstrated that nutrients in the presence of chlorine oxides, under conditions simulating the alimentary tract, effectively organify I- in vitro. A logical consequence of these is that traces of iodinated organics are absorbed after ingestion of dr

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., S. Venkatesan, K. V. Hemalatha ., and S. Jayaganesh . "Zinc Toxicity and its Influence on Nutrient Uptake in Tea." American Journal of Plant Physiology 1, no. 2 (February 15, 2006): 185–92. http://dx.doi.org/10.3923/ajpp.2006.185.192.

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Lin, Kuo‐Ching, Chwen‐I Lin, and Chung‐Yuan Chen. "The effect of limiting nutrient on metal toxicity toselenastrum capricornutum." Toxicological & Environmental Chemistry 56, no. 1-4 (August 1996): 47–61. http://dx.doi.org/10.1080/02772249609358349.

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MIAO, A., and W. WANG. "Cadmium toxicity to two marine phytoplankton under different nutrient conditions." Aquatic Toxicology 78, no. 2 (June 15, 2006): 114–26. http://dx.doi.org/10.1016/j.aquatox.2006.02.008.

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Mortley, Desmond G. "MANGANESE TOXICITY OR TOLERANCE IN SWEETPOTATO." HortScience 27, no. 6 (June 1992): 665e—665. http://dx.doi.org/10.21273/hortsci.27.6.665e.

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Greenhouse studies were conducted to evaluate 5 levels of Mn (0.00025 to 0.1 g.L-1) on Mn toxicity or tolerance of sweetpotato [Ipomoea batatas (L.) Lam] grown in a modified half Hoagland's solution. The presence of oxidized Mn on the roots and leaves was demonstrated by the blue staining test with benzidene and the solubility and bleaching of oxidized Mn in the oxalic-sulfuric acid solution. Both storage root and foliage fresh and dry weights were highest at Mn concn of 0.00025 g.L-1 in the nutrient solution, while fibrous root dry weight was highest with 0.01 g.L-1 Mn in the solution. More M

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47

Reddy Anthay, Swetha, Arun Chokkalingam, Komathi B. Jeyashanker, and Bharathiraja Natarajan. "An analysis on micronutrient deficiency in plant leaf and soil using digital image processing." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 1 (April 1, 2022): 568. http://dx.doi.org/10.11591/ijeecs.v26.i1.pp568-575.

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The plant <span>requires thirteen different nutrients. The two main types of nutrients are micronutrients and macronutrients. Diseases develop due to deficiency of vital nutrients, resulting in colored spots on the leaves. Plant development is affected by toxicity or lack of one or more of these nutrients, resulting in plant death. As a result, a continuous monitoring system is necessary to know the nutritional status of the plants to enhance production efficiency and output. Optical image recognition-based medical technology can identify indicators of inaccuracy faster than the human ey

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Lee, Kenneth, Kenneth G. Doe, Lucila E. J. Lee, Makram T. Suidan, and Albert D. Venosa. "Remediation of an Oil-Contaminated Experimental Freshwater Wetland: II. Habitat Recovery and Toxicity Reduction." International Oil Spill Conference Proceedings 2001, no. 1 (March 1, 2001): 323–28. http://dx.doi.org/10.7901/2169-3358-2001-1-323.

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ABSTRACT A controlled oil spill experiment to determine natural recovery rates and the efficacy of potential remediation strategies in wetland ecosystems was initiated in June 1999 at a site on the St. Lawrence River, Canada dominated by Scirpus pungens. A weathered light crude oil (Mesa) was applied on 16 plots (5 m × 4 m) at the rate of 12 L per plot. Treatment of the plots included: natural attenuation (no treatment), nutrient amendment with granular ammonium nitrate and super triple phosphate, a similar treatment with plants continuously cut back (to evaluate the influence of plant growth

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Brandenburg, Karen, Laura Siebers, Joost Keuskamp, Thomas G. Jephcott, and Dedmer B. Van de Waal. "Effects of Nutrient Limitation on the Synthesis of N-Rich Phytoplankton Toxins: A Meta-Analysis." Toxins 12, no. 4 (April 1, 2020): 221. http://dx.doi.org/10.3390/toxins12040221.

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Eutrophication has played a major role in the worldwide increase of harmful algal blooms (HABs). Higher input of key nutrients, such as nitrogen (N) and phosphorus (P), can stimulate the growth of harmful algal species in freshwater, estuarine, and coastal marine ecosystems. Some HAB-forming taxa, particularly several cyanobacteria and dinoflagellate species, are harmful through the production of N-rich toxins that have detrimental effects on the environment and human health. Here, we test how changes in nutrient availability affect N-rich toxin synthesis in cyanobacteria and dinoflagellates u

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Salifu, K. F., and V. R. Timmer. "Optimizing nitrogen loading of Picea mariana seedlings during nursery culture." Canadian Journal of Forest Research 33, no. 7 (July 1, 2003): 1287–94. http://dx.doi.org/10.1139/x03-057.

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Plant growth and nutrient uptake response to increased fertilization can be conceptually described by cur vi linear relationships depicting phases of nutrient deficiency, sufficiency, luxury consumption, and toxicity to rationalize fertilizer prescriptions and improve nutrient diagnosis. We validated this model to determine optimum nitrogen storage of young black spruce (Picea mariana (Mill.) BSP). Container seedlings were supplied with a mixed nitrogenphosphoruspotassium (NPK) fertilizer at rates ranging from 0 to 80 mg N/seedling and reared in a greenhouse for one growing season. Plant g

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