Reprint of “Contrasting stomatal regulation and leaf ABA concentrations in wheat genotypes when split root systems were exposed to terminal drought”

Saradadevi, Renu; Bramley, Helen; Siddique, Kadambot H. M.; Edwards, Everard; Palta, Jairo A.

doi:10.1016/j.fcr.2014.06.025

Cited by 14 publications

(10 citation statements)

References 63 publications

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“…Under drought stress, the ABA content increasing the leaf relative water content by osmotic adjustment may play a role in the growth and recovery of leaves (Saradadevi et al, 2014). When ABA content exceeds a certain threshold, there is a direct effect on photosynthesis (Negin & Moshelion, 2016 affected the spikes m −2 , grains spike −1 and RUE (p < .05).…”

Section: Discussionmentioning

confidence: 99%

“…Water stress induced a decrease in the leaf water status such as leaf relative water content (LRWC), leaf water potential (Lψ), leaf osmotic potential (Lπ), radiation use efficiency (RUE), and yield components and grain yield (Chowdhury et al, 2011) while increased the leaf abscisic acid (ABA) content (El-Hendawy et al, 2019;Saradadevi et al, 2014). Nevertheless, considering the efficient use of limited water in NCP, the optimal deficit irrigation of winter wheat varies greatly, for instance, 60 mm (Fang et al, 2018), 75 mm (Ali et al, 2019), 135 mm (Wang et al, 2016), 165 mm (Dar et al, 2017) and 263 mm , which there is no uniform optimal irrigation standard yet until now.…”

Section: Introductionmentioning

confidence: 99%

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Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Zhou

Yang

Wang

et al. 2020

J Agronomy Crop Science

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Drought and water shortages have always been great challenges for agricultural production in the North China Plain. To explore appropriate irrigation regimes and planting patterns in this area, a field experiment was conducted for winter wheat (Triticum aestivum L.) from 2014 to 2016. Three irrigation treatments of 50 mm irrigation at growth stage of jointing (GS34) and heading (GS48, W1), 100 mm irrigation at GS34 (W2) and 100 mm irrigation at GS34 and GS48 (W3) combined with uniform (U), double-double (DD) and furrow-ridge (F) planting patterns were designed. The tillers number, leaf water status, spike characteristics and radiation use efficiency (RUE) were measured. Results showed that compared with W2, W3 significantly reduced leaf abscisic acid (ABA) content and increased tillers number, spikelets spike −1 , yield components and RUE, while W1 produced more tillers number, leaf relative water content (LRWC) and water potential (Lψ) only in the late growth stage, yield components and RUE. The DD significantly increased tillers number, LRWC, Lψ, leaf osmotic potential, spike length, spikes m −2 , grains spike −1 and RUE, and reduced the ABA content compared with U. Considering the serious water shortage in the North China Plain, 50 mm irrigation at jointing and heading stages combined with DD is a worthy cultivation measure for sustainable agriculture at water-deficit condition.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Zhou

Yang

Wang

et al. 2020

J Agronomy Crop Science

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“…This parameter is typically determined in studies aimed at improving crop yield while saving soil water and mitigating yield limitations by water deficit [127,128]. In this context, the importance of ABA for WUEi improvement is well-known due to its central role in regulating plant-water relations, specially by modulating stomatal conductance in several crop species [66,[129][130][131]. As outlined above, the direct influence of ABA on WUEi in angiosperms has already been demonstrated and several studies have concluded that plant responses driven by ABA depend on the severity and the duration of the drought events [67].…”

Section: Regulation Of Aba Levels and Perception In Crop Speciesmentioning

confidence: 99%

Abscisic Acid Biosynthesis and Signaling in Plants: Key Targets to Improve Water Use Efficiency and Drought Tolerance

et al. 2020

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The observation of a much-improved fitness of wild-type plants over abscisic acid (ABA)-deficient mutants during drought has led researchers from all over to world to perform experiments aiming at a better understanding of how this hormone modulates the physiology of plants under water-limited conditions. More recently, several promising approaches manipulating ABA biosynthesis and signaling have been explored to improve water use efficiency and confer drought tolerance to major crop species. Here, we review recent progress made in the last decade on (i) ABA biosynthesis, (ii) the roles of ABA on plant-water relations and on primary and secondary metabolisms during drought, and (iii) the regulation of ABA levels and perception to improve water use efficiency and drought tolerance in crop species.

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“…However, there is a lacking correlation between stomatal conductance and xylem ABA, but a superior correlation with leaf ABA ( Henson et al, 1989 ; Ali et al, 2007 ). Thus, stomatal regulation in response to soil dryness is connected with ABA accumulation in leaf tissues, at least in wheat ( Saradadevi et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Comparative Proteome Analysis of Wheat Flag Leaves and Developing Grains Under Water Deficit

Deng

Liu

et al. 2018

Front. Plant Sci.

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In this study, we performed the first comparative proteomic analysis of wheat flag leaves and developing grains in response to drought stress. Drought stress caused a significant decrease in several important physiological and biochemical parameters and grain yield traits, particularly those related to photosynthesis and starch biosynthesis. In contrast, some key indicators related to drought stress were significantly increased, including malondialdehyde, soluble sugar, proline, glycine betaine, abscisic acid content, and peroxidase activity. Two-dimensional difference gel electrophoresis (2D-DIGE) identified 87 and 132 differentially accumulated protein (DAP) spots representing 66 and 105 unique proteins following exposure to drought stress in flag leaves and developing grains, respectively. The proteomes of the two organs varied markedly, and most DAPS were related to the oxidative stress response, photosynthesis and energy metabolism, and starch biosynthesis. In particular, DAPs in flag leaves mainly participated in photosynthesis while those in developing grains were primarily involved in carbon metabolism and the drought stress response. Western blotting and quantitative real-time polymerase chain reaction (qRT-PCR) further validated some key DAPs such as rubisco large subunit (RBSCL), ADP glucose pyrophosphorylase (AGPase), chaperonin 60 subunit alpha (CPN-60 alpha) and oxalate oxidase 2 (OxO 2). The potential functions of the identified DAPs revealed that a complex network synergistically regulates drought resistance during grain development. Our results from proteome perspective provide new insight into the molecular regulatory mechanisms used by different wheat organs to respond to drought stress.

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Reprint of “Contrasting stomatal regulation and leaf ABA concentrations in wheat genotypes when split root systems were exposed to terminal drought”

Cited by 14 publications

References 63 publications

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Abscisic Acid Biosynthesis and Signaling in Plants: Key Targets to Improve Water Use Efficiency and Drought Tolerance

Comparative Proteome Analysis of Wheat Flag Leaves and Developing Grains Under Water Deficit

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