Effects of S-Abscisic Acid (S-ABA) on Seed Germination, Seedling Growth, and Asr1 Gene Expression Under Drought Stress in Maize

Yao, Chentao; Zhang, Fengwen; Sun, Xiao; Shang, Dianlong; He, Falin; Li, Xiangdong; Zhang, Jiwang; Jiang, Xingyin

doi:10.1007/s00344-019-09934-9

Cited by 39 publications

(25 citation statements)

References 64 publications

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“…This result suggests that bryophytes, including liverwort M. polymorpha engaged ABA to increase their survivability against drought stress. Previous reports also demonstrated that ABA essentially triggered the antioxidant enzyme activities in angiosperms wheat and maize in response to drought stress ( Wei et al, 2015 ; Yao et al, 2019 ). A lower level of ABA contributed to the activation of enzymatic antioxidant system in liverwort M. polymorpha and mosses P. patens, A. undulatum, Entosthodon hungaricus , and Hennediella heimii ( Vujicic et al, 2017 ; Ćosić et al, 2020b ).…”

Section: Discussionmentioning

confidence: 84%

Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress

Ghosh

Tompa

Rahman

et al. 2021

PeerJ

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Liverwort Marchantia polymorpha is considered as the key species for addressing a myriad of questions in plant biology. Exploration of drought tolerance mechanism(s) in this group of land plants offers a platform to identify the early adaptive mechanisms involved in drought tolerance. The current study aimed at elucidating the drought acclimation mechanisms in liverwort’s model M. polymorpha. The gemmae, asexual reproductive units of M. polymorpha, were exposed to sucrose (0.2 M), mannitol (0.5 M) and polyethylene glycol (PEG, 10%) for inducing physiological drought to investigate their effects at morphological, physiological and biochemical levels. Our results showed that drought exposure led to extreme growth inhibition, disruption of membrane stability and reduction in photosynthetic pigment contents in M. polymorpha. The increased accumulation of hydrogen peroxide and malondialdehyde, and the rate of electrolyte leakage in the gemmalings of M. polymorpha indicated an evidence of drought-caused oxidative stress. The gemmalings showed significant induction of the activities of key antioxidant enzymes, including superoxide dismutase, catalase, ascorbate peroxidase, dehydroascorbate reductase and glutathione S-transferase, and total antioxidant activity in response to increased oxidative stress under drought. Importantly, to counteract the drought effects, the gemmalings also accumulated a significant amount of proline, which coincided with the evolutionary presence of proline biosynthesis gene Δ1-pyrroline-5-carboxylate synthase 1 (P5CS1) in land plants. Furthermore, the application of exogenous abscisic acid (ABA) reduced drought-induced tissue damage and improved the activities of antioxidant enzymes and accumulation of proline, implying an archetypal role of this phytohormone in M. polymorpha for drought tolerance. We conclude that physiological drought tolerance mechanisms governed by the cellular antioxidants, proline and ABA were adopted in liverwort M. polymorpha, and that these findings have important implications in aiding our understanding of osmotic stress acclimation processes in land plants.

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Section: Discussionmentioning

confidence: 84%

Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress

Ghosh

Tompa

Rahman

et al. 2021

PeerJ

View full text Add to dashboard Cite

show abstract

“…This result suggests that bryophytes, including liverwort M. polymorpha engaged ABA to increase their survivability against drought stress. Previous reports also demonstrated that ABA essentially triggered the antioxidant enzyme activities in angiosperms wheat and maize in response to drought stress (Wei et al, 2015;Yao et al, 2019). A lower level of ABA contributed to the activation of enzymatic antioxidant system in liverwort M. polymorpha, moss P. patens, A. undulatum, Entosthodon hungaricus and Hennediella heimii (Vujicic et al, 2017;Ćosić et al, 2020b).…”

Section: Discussionmentioning

confidence: 90%

Peer Review #1 of "Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress (v0.1)"

Delaux¹

2021

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“…Abscisic acid is an important phytoharmone, not only because of its regulatory functions in physiological and developmental processes but also because it is the main regulator in adaptive response to drought stress (Lou et al, 2017). The treatment of the maize seedlings at different concentration of S-ABA (abscissic acid) causes an increase in the root length, bud length, root fresh weight, root dry weight, bud dry weight under drought stress (Yao et al, 2019). This shows that S-ABA mitigate the effect of the drought stress on maize seedlings at the varying degrees.…”

Section: Germination and Seedling Growthmentioning

confidence: 99%

“…The soaking of the maize seedlings promotes the germination of the maize seed but has an inhibitory effect under high concentrations. Out of many treatments carried, treatment of 4 mg/ kg S -ABA found the best to overcome the drought stress (Yao et al, 2019).…”

Section: Germination and Seedling Growthmentioning

confidence: 99%

Effects of Drought Stress on the Physiology and Yield of the Maize: A Review

Pokhrel¹

2021

Food.agr.eco.rev.

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Maize is a cereal crop mainly cultivated in arid and semi-arid regions, where drought stress due to changing environment is affecting crop growth, development and yield. The aim of this literature review is to offer discourse on different physiological changes, germination and yield performance of maize under stressful environment of drought. The stressful environment due to water deficit causes a great alteration in a wide range of the physiological, biochemical and molecular process in maize which ultimately causes negative effect in yield. Drought stress influence in growth, development, yield and quality of the crop with impairment in the plant height, leaf area and biomass. A great variation in the photosynthetic process due to reduction in the photosynthetic pigments (chlorophyll a, chlorophyll b), stomatal conductance, photosystem activity, enzymes occur under water deficit condition in maize. Drought induce reduction in the soil moisture which results an unbalanced concentration of macro and micro nutrients leading to nutrient deficiency in plant. Maize is susceptible to drought during germination. Drought stress limits the germination process and early seedling growth. The severe and prolonged drought duration hampers more in reproductive stage during anthesis period than vegetative stage affecting final grain yield in maize crop.

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Effects of S-Abscisic Acid (S-ABA) on Seed Germination, Seedling Growth, and Asr1 Gene Expression Under Drought Stress in Maize

Cited by 39 publications

References 64 publications

Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress

Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress

Peer Review #1 of "Acclimation of liverwort Marchantia polymorpha to physiological drought reveals important roles of antioxidant enzymes, proline and abscisic acid in land plant adaptation to osmotic stress (v0.1)"

Effects of Drought Stress on the Physiology and Yield of the Maize: A Review

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