<scp>l</scp>‐cysteine desulfhydrase‐related H2S production is involved in OsSE5‐promoted ammonium tolerance in roots of <scp>Oryza sativa</scp>

Guo, Hongming; Zhou, Heng; Zhang, Jing; Guan, Wenxue; Xu, Sheng; Shen, Wenbiao; Xu, Guohua; Xie, Yanjie; Foyer, Christine H.

doi:10.1111/pce.12982

Cited by 29 publications

(22 citation statements)

References 68 publications

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“…In the present study, the activity of SOD significantly decreased in response to salt stress, whereas the

content increased (Figure 1E ). APT, as an antioxidant, can detoxify H 2 O 2 into water and molecular oxygen (Huang et al, 2005 ; Guo et al, 2017 ). In the present study, the activity of APX decreased under the S4 condition, which in turn led to an increase in H 2 O 2 content (Figure 1E ).…”

Section: Discussionmentioning

confidence: 99%

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

Sui¹,

Wang²,

Liu³

et al. 2018

Front. Plant Sci.

128

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Peanut (Arachis hypogaea L.) is one of the five major oilseed crops cultivated worldwide. Salt stress is a common adverse condition for the growth of this crop in many countries and regions. In this study, physiological parameters and transcriptome profiles of peanut seedlings exposed to salt stress (250 mM NaCl for 4 days, S4) and recovery for 3 days (when transferred to standard conditions for 3 days, R3) were analyzed to detect genes associated with salt stress and recovery in peanut. We observed that the quantum yield of PSII electron transport (ΦPSII) and the maximal photochemical efficiency of PSII (Fv/Fm) decreased in S4 compared with the control, and increased in R3 compared with those in S4. Seedling fresh weight, dry weight and PSI oxidoreductive activity (ΔI/Io) were inhibited in S4 and did not recover in R3. Superoxide dismutase (SOD) and ascorbate peroxidase (APX) activities decreased in S4 and increased in R3, whereas superoxide anion (O2-•) and hydrogen peroxide (H2O2) contents increased in S4 and decreased in R3. Transcriptome analysis revealed 1,742 differentially expressed genes (DEGs) under salt stress and 390 DEGs under recovery. Among these DEGs, two DEGs encoding ω-3 fatty acid desaturase that synthesized linolenic acid (18:3) from linoleic acid (18:2) were down-regulated in S4 and up-regulated in R3. Furthermore, ω-3 fatty acid desaturase activity decreased under salt stress and increased under recovery. Consistent with this result, 18:3 content decreased under salt stress and increased under recovery compared with that under salt treatment. In conclusion, salt stress markedly changed the activity of ω-3 fatty acid desaturase and fatty acid composition. The findings provide novel insights for the improvement of salt tolerance in peanut.

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“…In the present study, the activity of SOD significantly decreased in response to salt stress, whereas the

Section: Discussionmentioning

confidence: 99%

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

Sui¹,

Wang²,

Liu³

et al. 2018

Front. Plant Sci.

128

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“…Some investigations have aimed to assess the physiological role of H 2 S in plants, such as increased tolerance of sweet potato to copper stress (Zhang et al, 2008), cucumber to boron toxicity (Wang et al, 2010), alfalfa to salinity stress (Wang et al, 2012), and wheat and barley to aluminum toxicity (Chen et al, 2013). L-cysteine desulfhydrase is known as a crucial enzyme in H 2 S biosynthesis, which is responsible for H 2 S synthesis (Guo et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The endogenous L-cysteine desulfhydrase and hydrogen sulfide participate in supplemented phosphorus-induced tolerance to salinity stress in maize (Zeamays) plants

Kaya¹,

Ashraf²

2020

Turk J Bot

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“…l -cysteine desulfhydrase ( l -DES) is one of the key enzymes involved in hydrogen sulfide (H 2 S) synthesis [ 32 , 33 ]. This enzyme is mainly located in the cytoplasm, wherein it converts l -cysteine to pyruvate by releasing H 2 S and NH 4 + [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

2020

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The aim of this study is to assess the role of L-cysteine desulfhydrase (L-DES) and endogenous hydrogen sulfide (H2S) in glutathione (GSH)-induced tolerance to salinity stress (SS) in sweet pepper (Capsicum annuum L.). Two weeks after germination, before initiating SS, half of the pepper seedlings were retained for 12 h in a liquid solution containing H2S scavenger, hypotaurine (HT), or the L-DES inhibitor DL-propargylglycine (PAG). The seedlings were then exposed for three weeks to control or SS (100 mmol L−1 NaCl) and supplemented with or without GSH or GSH+NaHS (sodium hydrosulfide, H2S donor). Salinity suppressed dry biomass, leaf water potential, chlorophyll contents, maximum quantum efficiency, ascorbate, and the activities of dehydroascorbate reductase, monodehydroascorbate reductase, and glyoxalase II in plants. Contrarily, it enhanced the accumulation of hydrogen peroxide, malondialdehyde, methylglyoxal, electrolyte leakage, proline, GSH, the activities of glutathione reductase, peroxidase, catalase, superoxide dismutase, ascorbate peroxidase, glyoxalase I, and L-DES, as well as endogenous H2S content. Salinity enhanced leaf Na+ but reduced K+; however, the reverse was true with GSH application. Overall, the treatments, GSH and GSH+NaHS, effectively reversed the oxidative stress and upregulated salt tolerance in pepper plants by controlling the activities of the AsA-GSH and glyoxalase-system-related enzymes as well as the levels of osmolytes.

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l‐cysteine desulfhydrase‐related H₂S production is involved in OsSE5‐promoted ammonium tolerance in roots of Oryza sativa

Cited by 29 publications

References 68 publications

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

The endogenous L-cysteine desulfhydrase and hydrogen sulfide participate in supplemented phosphorus-induced tolerance to salinity stress in maize (Zeamays) plants

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

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l‐cysteine desulfhydrase‐related H2S production is involved in OsSE5‐promoted ammonium tolerance in roots of Oryza sativa

Cited by 29 publications

References 68 publications

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

Transcriptomic and Physiological Evidence for the Relationship between Unsaturated Fatty Acid and Salt Stress in Peanut

The endogenous L-cysteine desulfhydrase and hydrogen sulfide participate in supplemented phosphorus-induced tolerance to salinity stress in maize (Zeamays) plants

Involvement of l-Cysteine Desulfhydrase and Hydrogen Sulfide in Glutathione-Induced Tolerance to Salinity by Accelerating Ascorbate-Glutathione Cycle and Glyoxalase System in Capsicum

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l‐cysteine desulfhydrase‐related H₂S production is involved in OsSE5‐promoted ammonium tolerance in roots of Oryza sativa