Drought-responsive mechanisms in rice genotypes with contrasting drought tolerance during reproductive stage

Ji, Kui-Xian; Wang, Yangyang; Sun, Weining; Lou, Qiaojun; Mei, Hanwei; Shen, Shihua; Chen, Hui

doi:10.1016/j.jplph.2011.10.010

Cited by 212 publications

(119 citation statements)

References 45 publications

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“…Water availability is highly affected by soil temperature and soil water content. According to Ji et al (2012), water is the main factor that affect rice production.…”

Section: Discussionmentioning

confidence: 99%

Drough tolerance estimation of several rainfed rice (Oryza sativaL.) of lokal veriety using polyethilene glycol(PEG)

et al. 2017

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“…Water availability is highly affected by soil temperature and soil water content. According to Ji et al (2012), water is the main factor that affect rice production.…”

Section: Discussionmentioning

confidence: 99%

Drough tolerance estimation of several rainfed rice (Oryza sativaL.) of lokal veriety using polyethilene glycol(PEG)

et al. 2017

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“…The stomatal closure reduces the amount of water loss through transpiration and limits the entry of CO2 in the leaf tissues for photosynthesis in rice (Hung and Kao, 2004;Ji et al, 2012;You et al, 2013). Cross talk also exists between ROS and ABA under drought stress.…”

Section: Drought Signal Perception and Rosmentioning

confidence: 99%

“…The detail of cellular location, features and role of enzymatic antioxidants in ROS scavenging is described in Table 3. Phenolic compounds, tocopherol, carotenoid, flavonoids and glutathione are the components of non-enzymatic antioxidant defense system (Ji et al, 2012). These compounds not only affect plant growth and development but also affecting the phenomena from cell enlargement and mitosis to senescence and even cell death (de Pinto and Gara, 2004).…”

Section: Antioxidant Defense System and Rosmentioning

confidence: 99%

“…It may suffer from drought stress either at vegetative stage or at reproductive stage. During vegetative growth, reduction in plant height, number of tillers and biomass are affected and rolling of leaves occurs in rice (Ji et al, 2012). Under drought stress, plant releases hormones like ethylene that inhibit leaf and root growth on primary phase (Basu et al, 2016) and stress occurring before flowering reduces yield.…”

Section: Introductionmentioning

confidence: 99%

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Role of Reactive Oxygen Species and Contribution of New Players in Defense Mechanism under Drought Stress in Rice

Qureshi¹,

Munir²,

Rasul³

et al. 2018

IJAB

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Rice (Oryza sativa) falls among the staple food crops in different parts of the globe. In current scenario of climate change, drought stress leads to significant decrease in crop production. It has negative effect on rice growth and development by affecting cellular, physiological and molecular processes. Photo-respiration increases under drought stress leads to overproduction of reactive oxygen species (ROS) in different organelles of the cell like chloroplasts, mitochondria and peroxisomes etc., which induce severe oxidative stress in rice. Over production of ROS can cause damage to proteins, lipids and DNA leading to lipid peroxidation, proteins oxidation, mutation, DNA damage that can lead to cell death. Under drought stress, ROS turn over in various organelles overload antioxidant quenching mechanism leading to oxidative damage. Oxidative stress can be overcome by the scavenging system, which consists of enzymatic and non-enzymatic antioxidants. Moreover, ROS also acts as signaling molecule and triggers defense mechanism through specific signal transduction network under stress. Under stress condition, activation of molecular cascades is initiated through the perception of stress that leads to the activation of signal transduction pathway including expression of transcription factors and stress related genes. Understanding of this regulatory mechanism of plant development and growth in drought-ROS stress can be promising in the development of improved transgenic rice under this stress. This review will provide an overview of ROS synthesis and signaling pathway under drought condition in rice.

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“…An investigation of the response of rice (Oryza sativa) to water deficiency revealed that the most tolerant genotypes exhibit reduced osmotic potential, deeper root growth, and grains with superior antioxidant capacity (Ji et al, 2012). Ganjeali et al (2011) showed that drought tolerance in chickpea (Cicer arietinum) was correlated with reduced transpiration and smaller leaf area, whereas tolerance to water deficit in cowpea was reportedly associated with increased membrane stability, diminished stomata opening, reduced transpiration, and smaller leaf area (Labuschagne et al, 2008;Belko et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis

Sousa¹,

Damasceno‐Silva²,

Bastos³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought tolerance, by applying principal component analysis to 219 first-cycle progenies obtained in a recurrent selection program. The experimental design comprised a simple 15 x 15 lattice with 450 plots, each of two rows of 10 plants. Plants were grown under water-deficit conditions by applying a water depth of 205 mm representing one-half of that required by cowpea. Variables assessed were flowering, maturation, pod length, number and mass of beans/pod, mass of 100 beans, and productivity/plot. Ten elite cowpea genotypes were selected, in which principal components 1 and 2 encompassed variables related to yield (pod length, beans/pod, and productivity/plot) and life precocity (flowering and maturation), respectively.

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Drought-responsive mechanisms in rice genotypes with contrasting drought tolerance during reproductive stage

Cited by 212 publications

References 45 publications

Drough tolerance estimation of several rainfed rice (Oryza sativaL.) of lokal veriety using polyethilene glycol(PEG)

Drough tolerance estimation of several rainfed rice (Oryza sativaL.) of lokal veriety using polyethilene glycol(PEG)

Role of Reactive Oxygen Species and Contribution of New Players in Defense Mechanism under Drought Stress in Rice

Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis

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