Amino Acid: Its Dual Role as Nutrient and Scavenger of Free Radicals in Soil

Datta, Rahul; Baraniya, Divyashri; Wang, Yong Feng; Kelkar, Aditi; Meena, Ram Swaroop; Yadav, Gulab Singh; Ceccherini, Maria Teresa; Formánek, Pavel

doi:10.3390/su9081402

Cited by 56 publications

(7 citation statements)

References 46 publications

(42 reference statements)

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“…Decomposition of Fraxinus excelsior leaves increases the proportion of glucose to other monosaccharides [110] when soil α-glucosidase is slightly inhibited or activated by some L-and D-carbohydrates including L-arabinose and L-rhamnose, D-xylose, D-mannose or D-glucose [111]. Additionally, D-imino sugars and some amino acids such as 3-or 4-hydroxyproline are glycosidase inhibitors [112,113].…”

Section: L-and D-carbohydrates In Soilmentioning

confidence: 99%

Enantiomers of Carbohydrates and Their Role in Ecosystem Interactions: A Review

et al. 2020

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D- and most L-enantiomers of carbohydrates and carbohydrate-containing compounds occur naturally in plants and other organisms. These enantiomers play many important roles in plants including building up biomass, defense against pathogens, herbivory, abiotic stress, and plant nutrition. Carbohydrate enantiomers are also precursors of many plant compounds that significantly contribute to plant aroma. Microorganisms, insects, and other animals utilize both types of carbohydrate enantiomers, but their biomass and excrements are dominated by D-enantiomers. The aim of this work was to review the current knowledge about carbohydrate enantiomers in ecosystems with respect to both their metabolism in plants and occurrence in soils, and to identify critical knowledge gaps and directions for future research. Knowledge about the significance of D- versus L-enantiomers of carbohydrates in soils is rare. Determining the mechanism of genetic regulation of D- and L-carbohydrate metabolism in plants with respect to pathogen and pest control and ecosystem interactions represent the knowledge gaps and a direction for future research.

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Section: L-and D-carbohydrates In Soilmentioning

confidence: 99%

Enantiomers of Carbohydrates and Their Role in Ecosystem Interactions: A Review

et al. 2020

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“…The growth and yield of crops were increased in many studies by the use of humic acid substances due to the increase in cell membrane permeability, the stimulation of seed germination and viability, respiration, photosynthesis rate and root cell elongation, increasing the activity of enzymatic antioxidants such as catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD). These enzymes play an important role in activating the formation of structural protein [3,[21][22][23][24]. Furthermore, humic substances can increase the biotic and abiotic stress tolerance capacity of the crop plant.…”

Section: Introductionmentioning

confidence: 99%

Impact of Seed Dressing and Soil Application of Potassium Humate on Cotton Plants Productivity and Fiber Quality

Ullah

Ali

Shahzad

et al. 2020

Plants

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Humus is the stable form of added crop and animal residues. The organic matter after a long-term decomposition process converts into humic substances. The naturally occurring humus is present in less amount in soils of the arid and semi-arid regions. The addition of commercially available humic acid can, therefore, contribute to improving soil health and crop yields. The present study was conducted to evaluate the effect of potassium humate, applied through soil seed dressing, on cotton productivity and fiber quality attributes. Seed dressing with potassium humate was done at the rate of 0, 100, 150 and 200 mL kg−1 seed while in soil potassium humate was applied at the rate of 0, 10, 20 and 30 L ha−1. Results showed that the combined application of potassium humate by seed dressing and through soil application improved the soil properties, productivity and fiber quality traits of cotton. All levels of soil applied potassium humate (10, 20 and 30 L ha−1) performed better over seed dressing in terms of cotton productivity and fiber quality attributes. Among the soil application rates, 20 L ha−1 potassium humate proved better as compared to other rates (0, 10 and 30 L ha−1). Higher soil application of potassium humate (30 L ha−1) showed depressing effects on all the traits studied like the reduction of 12.4% and 6.6% in Ginning out turn and fiber length, respectively, at a seeding dressing of 200 mL kg−1. In conclusion, potassium humate seed dressing and soil application at the rate of 200 mL kg−1 and 20 L ha−1, respectively, is a better approach to improve cotton productivity. Soil potassium humate should not exceed a rate of 20 L ha−1 when the seed dressing of potassium is also practiced.

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“…nutrient supply, atmospheric conditions, and competitiveness with other components of these communities [50]. In roots, carbon exudates are released which act as a nutrient source, as well as chemo-attractant, for bacteria, and are responsible for the colonization of endophytes inside the plant [46,[51][52][53]. Moreover, higher bacterial diversity in the upper part as compared to the middle part of the shoot might have originated from aerial colonization in the plants [54].…”

Section: Discussionmentioning

confidence: 99%

Exploring Functional Diversity and Community Structure of Diazotrophic Endophytic Bacteria Associated with Pennisetum glaucum Growing under Field in a Semi-Arid Region

Gupta

Paul

Singh

et al. 2022

Land

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Diazotrophic endophytic bacteria (DEB) are the key drivers of nitrogen fixation in rainfed soil ecosystems and, hence, can influence the growth and yield of crop plants. Therefore, the present work investigated the structure and composition of the DEB community at different growth stages of field-grown pearl millet plants, employing the cultivation-dependent method. Diazotrophy of the bacterial isolates was confirmed by acetylene reduction assay and amplification of the nifH gene. ERIC-PCR-based DNA fingerprinting, followed by 16S rRNA gene analysis of isolates recovered at different time intervals, demonstrated the highest bacterial diversity during early (up to 28 DAS (Days after sowing)) and late (63 DAS onwards) stages, as compared to the vegetative growth stage (28–56 DAS). Among all species, Pseudomonas aeruginosa was the most dominant endophyte. Assuming modulation of the immune response as one of the tactics for successful colonization of P. aeruginosa PM389, we studied the expression of the profile of defense genes of wheat, used as a host plant, in response to P. aeruginosa inoculation. Most of the pathogenesis-related PR genes were induced initially (at 6 h after infection (HAI)), followed by their downregulation at 12 HAI. The trend of bacterial colonization was quantified by qPCR of 16S rRNAs. The results obtained in the present study indicated an attenuated defense response in host plants towards endophytic bacteria, which is an important feature that helps endophytes establish themselves inside the endosphere of roots.

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Amino Acid: Its Dual Role as Nutrient and Scavenger of Free Radicals in Soil

Cited by 56 publications

References 46 publications

Enantiomers of Carbohydrates and Their Role in Ecosystem Interactions: A Review

Enantiomers of Carbohydrates and Their Role in Ecosystem Interactions: A Review

Impact of Seed Dressing and Soil Application of Potassium Humate on Cotton Plants Productivity and Fiber Quality

Exploring Functional Diversity and Community Structure of Diazotrophic Endophytic Bacteria Associated with Pennisetum glaucum Growing under Field in a Semi-Arid Region

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