The effect of drought stress and nitrogen levels on antioxidant enzymes, proline and yield of Indian Senna (Cassia angustifolia L.)

Khammari, Issa

doi:10.5897/jmpr11.1105

Cited by 8 publications

(6 citation statements)

References 19 publications

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“…The increased yield of NBD was mainly due to increased seed setting rate and number of grains per panicle (Table 1 ). Increasing the level of N fertilizer application can effectively enhance the antioxidant capacity of plants [ 38 ]. The results showed that the peroxidase, SOD and catalase activities of NBD and NAD were significantly higher than those of CK, while the SOD, peroxidase and catalase activities of NAD were significantly lower than those of NBD.…”

Section: Discussionmentioning

confidence: 99%

“…The blockage of electron transfer in the respiratory chain under drought stress resulted in excessive accumulation of reactive oxygen species such as H 2 O 2 , O 2 · ˉ and nitrogen oxides in the cells [ 9 ], which induced severe oxidative stress leading to oxidative damage of membrane structures and organelles in the cells [ 4 ]. Drought stress increased the activities of catalase, SOD and glutathione peroxidase in the antioxidant enzyme system in plants [ 38 ]. Increasing the level of N fertilizer application could further enhance the antioxidant capacity of plants, inhibit membrane peroxidation and alleviate the aggravation of leaf peroxidative damage [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

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Combined proteomics, metabolomics and physiological analyses of rice growth and grain yield with heavy nitrogen application before and after drought

Shen

Xiong

et al. 2020

BMC Plant Biol

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Background Nitrogen application can effectively mitigate the damage to crop growth and yield caused by drought. However, the efficiency of heavy nitrogen application before drought (NBD) and heavy nitrogen application after drought (NAD) to regulate rice response to drought stress remains controversial. In this study, we profiled physiology, proteomics and metabolomics in rice variety Wufengyou 286 of two nitrogen management modes (NBD and NAD) to investigate their yield formation and the mechanism of nitrogen regulation for drought resistance. Results Results revealed that the yield of NBD and NAD decreased significantly when it was subjected to drought stress at the stage of young panicle differentiation, while the yield of NBD was 33.85 and 36.33% higher than that of NAD in 2017 and 2018, reaching significant levels. Under drought conditions, NBD increased chlorophyll content and net photosynthetic rate in leaves, significantly improved the activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase and catalase, and decreased malondialdehyde (MDA) content compared with NAD. NBD promoted nitrogen assimilation in leaves, which was characterized by increased activities of nitrate reductase (NR) and glutamine synthetase (GS). In addition, NBD significantly increased the contents of osmotic regulatory substances such as soluble sugar, soluble protein and free proline. Gene ontology and KEGG enrichment analysis of 234 differentially expressed proteins and 518 differential metabolites showed that different nitrogen management induced strong changes in photosynthesis pathway, energy metabolism pathway, nitrogen metabolism and oxidation-reduction pathways. Conclusion Different nitrogen management methods have significant differences in drought resistance of rice. These results suggest that heavy nitrogen application before drought may be an important pathway to improve the yield and stress resistance of rice, and provide a new ecological perspective on nitrogen regulation in rice.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Combined proteomics, metabolomics and physiological analyses of rice growth and grain yield with heavy nitrogen application before and after drought

Shen

Xiong

et al. 2020

BMC Plant Biol

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“…Nitrogen (N) and phosphorus (P) are primary macronutrients that play critical roles in various processes such as photosynthesis 16 – 18 Nutrient addition plays a critical role in improving plant growth under drought stress because water deficit conditions constrain plants’ access to soil N 19 . Numerous studies have shown that fertilization may lessen the adverse effects of drought on plant growth by promoting the regulation of water use efficiency and enhancing the activities of antioxidant enzymes 20 , 21 . The interactive effects of water and N availability on photosynthesis have been extensively studied 22 – 25 .…”

Section: Introductionmentioning

confidence: 99%

Alleviation of drought stress in Phyllostachys edulis by N and P application

Ying

Zhang

et al. 2018

Sci Rep

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The aim of this study was to explore whether nutrition supply can improve the drought tolerance of Moso bamboo under dry conditions. One-year-old seedlings were exposed to two soil water content levels [wellwatered, 70 ± 5% soil-relative-water-content (SRWC) and drought stress, 30 ± 5% SRWC] and four combinations of nitrogen (N) and phosphorus (P) supply (low-N, low-P, LNLP; low-N, high-P, LNHP; high-N, high-P, HNHP; and high-N, low-P, HNLP) for four months. Plant growth, photosynthesis, chlorophyll fluorescence, water use efficiency and cell membrane stability were determined. The results showed that drought stress significantly decreased total biomass, net-photosynthesis (Pn), stomatal-conductance (gs), leaf-chlorophyll-content (Chlleaf), PSII-quantum-yield (ΦPSII), maximum-quantum-yield-of-photosynthesis (Fv/Fm), photochemical-quenching-coefficient (qP), leaf-instantaneous-water-use efficiency (WUEi), relative-water-content (RWC), photosynthetic-N-use-efficiency (PNUE), and photosynthetic-P-use-efficiency (PPUE). N and P application was found to be effective in enhancing the concentration of leaf N, gs, and Pn while reducing the production of reactive oxygen species under both water regimes. Under LNHP, HNHP and HNLP treatments, the decreases in total biomass, Pn, Chlleaf and Fv/Fm of drought-stressed were less evident than the decreases under LNLP. The study suggests that nutrient application has the potential to mitigate the drastic effects of water stress on Moso bamboo by improving photosynthetic rate, water-use efficiency, and increasing of membrane integrity.

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“…The findings of some researchers also indicate that antioxidant enzymes increase when using N fertilizer (Zhang et al 2014). Khammari et al (2012) notified the upregulation of the antioxidant protection system within the Senna plant under nitrogen usage and water-deficit stress. Razzaq et al (2017) also stated that the activity of POD and CAT enzymes increased significantly; however, no changes in SOD enzyme activity was observed in carrot plant under water-deficit stress conditions.…”

Section: Antioxidant Enzyme Activitymentioning

confidence: 99%

Effect of Zeolite on Nitrogen Use Efficiency and Physiological and Biomass Traits of Amaranth (Amaranthus hypochondriacus) Under Water-Deficit Stress Conditions

Karami

Hadi

Tajbaksh

et al. 2020

J Soil Sci Plant Nutr

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In the present study, the interactive effect of irrigation and nitrogen (N) on biomass and physiological characteristics of amaranth and the influence of zeolite in this interaction were investigated. A 2-year field experiment was conducted as split-plot factorial in a randomized complete block design in three replicates. The main factor consisted of different levels of deficit irrigation (DI) such as irrigation after 40 (DI 1), 60 (DI 2), and 75% (DI 3) depletion of soil available water. The subplots derived from a combination of different factors including nitrogen rates (zero (N 0), 80 (N 1), 160 (N 2), and 240 (N 3) kg urea ha −1) and zeolite levels (zero (Z 0) and 10 (Z 1) ton ha −1). Reduction of soil moisture resulted in a decrease in the amount of chlorophylls, carotenoids, protein, maximum quantum yield of photosystem II (F v /F m ratio), and biomass of amaranth. In contrast, it resulted in the increase of antioxidant enzyme activity, soluble carbohydrates, and proline. However, nitrogen application led to an increase in the contents of chlorophyll, carotenoids, protein, antioxidant enzyme activity, F v /F m ratio, and biomass of amaranth and a decrease in the soluble carbohydrates and proline. Zeolite treatment by increasing the content of chlorophylls (16%), carotenoids (19%), protein (25%), F v /F m ratio (11%) as well as enchantment of soluble carbohydrate content and antioxidant enzyme activity and by decreasing the proline content (40%) moderated the adverse consequences of water-deficit stress and improved biomass of amaranth. In general, the use of zeolite along with the lowest rate of nitrogen fertilizer (80 kg urea ha −1) reduced the harmful effects of the oxidative stress caused by water scarcity and improved the growth conditions for the plant and thus produced maximum biomass of amaranth plant under moderate and severe deficit irrigations.

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The effect of drought stress and nitrogen levels on antioxidant enzymes, proline and yield of Indian Senna (Cassia angustifolia L.)

Cited by 8 publications

References 19 publications

Combined proteomics, metabolomics and physiological analyses of rice growth and grain yield with heavy nitrogen application before and after drought

Combined proteomics, metabolomics and physiological analyses of rice growth and grain yield with heavy nitrogen application before and after drought

Alleviation of drought stress in Phyllostachys edulis by N and P application

Effect of Zeolite on Nitrogen Use Efficiency and Physiological and Biomass Traits of Amaranth (Amaranthus hypochondriacus) Under Water-Deficit Stress Conditions

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