ASR Enhances Environmental Stress Tolerance and Improves Grain Yield by Modulating Stomatal Closure in Rice

Park, Seong-Im; Kim, Jin Ju; Shin, Sun‐Young; Kim, Young-Saeng; Yoon, Ho-Sung

doi:10.3389/fpls.2019.01752

Cited by 33 publications

(20 citation statements)

References 96 publications

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“…Optimising stomatal opening can also help improving rice drought tolerance. Transgenic rice overexpressing ABA inducible gene, OsASR1 , displayed an improved modulation of stomatal closure and consequently enhanced drought tolerance in multigenerational field trials [ 20 ].…”

Section: Transgenic Approach For Improving Rice Drought Tolerancementioning

confidence: 99%

Emerging Molecular Strategies for Improving Rice Drought Tolerance

Giri

Parida

Raghuvanshi

et al. 2021

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Abstract:: Rice occupies a pre-eminent position as a food crop in the world. Its production, however, entails up to 3000 liters of water per kilogram of grain produced. Such high demand makes rice prone to drought easily. Sustainable rice cultivation with limited water resources requires the deployment of a suitable strategy for better water use efficiency and improved drought tolerance. Several drought-related genes have been evaluated in rice for their mode of action in conferring drought tolerance. Manipulation of components of abscisic acid signal transduction, stomatal density, deposition of cuticular wax, and protein modification pathways are emerging as priority targets. Gene reprogramming by microRNAs is also being explored to achieve drought tolerance. Genetically dissected Quantitative Trait Loci (QTLs) and their constituent genes are being deployed to develop drought-tolerant rice varieties. Progressive research and challenges include a better understanding of crucial components of drought response and search for new targets, along with the deployment of improved varieties in the field.

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Section: Transgenic Approach For Improving Rice Drought Tolerancementioning

confidence: 99%

Emerging Molecular Strategies for Improving Rice Drought Tolerance

Giri

Parida

Raghuvanshi

et al. 2021

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“…Stomatal closure is an ABA-mediated mechanism that efficiently reduces water loss, (Kim et al, 2010), by altering the ion homeostasis of the guard cells (Kim et al, 2010). Molecular and genetic insights have suggested that the expression of drought stress responsive genes involves regulatory systems that may be ABA dependent or ABA independent (Riera et al, 2005;de Ollas and Dodd, 2016 (Park et al, 2020). OsASR5 may enhance drought tolerance in rice by mediating leaf water content via regulation of stomatal movements (Li et al, 2017).…”

Section: Phytohormonesmentioning

confidence: 99%

“…These genes have a prominent role in ABA‐mediated stress responses in rice. The OsASR1 gene induces the drought stress responses by reducing stress‐induced phenotypic alterations and enhancing plant survival rate (Park et al ., 2020). OsASR5 may enhance drought tolerance in rice by mediating leaf water content via regulation of stomatal movements (Li et al ., 2017).…”

Section: Physiological Mechanisms Associated With Rice Acclimation During Drought Ascendancymentioning

confidence: 99%

Improving drought tolerance in rice: Ensuring food security through multi‐dimensional approaches

Khan

Palakolanu

Chopra

et al. 2020

Physiologia Plantarum

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Drought has been highly prevalent around the world especially in Sub-Saharan Africa and South-East Asian countries. Consistent climatic instabilities and unpredictable rainfall patterns are further worsening the situation. Rice is a C 3 staple cereal and an important food crop for the majority of the world's population and drought stress is one of the major growth retarding threats for rice that slashes down grain quality and yield. Drought deteriorates rice productivity and induces various acclimation responses that aids in stress mitigation. However, the complexity of traits associated with drought tolerance has made the understanding of drought stress-induced responses in rice a challenging process. An integrative understanding based on physiological adaptations, omics, transgenic and molecular breeding approaches successively backed up to developing drought stress-tolerant rice. The review represents a step forward to develop drought-resilient rice plants by exploiting the knowledge that collaborates with omics-based developments with integrative efforts to ensure the compilation of all the possible strategies undertaken to develop drought stresstolerant rice. | INTRODUCTIONClimatic fluctuations in recent decades have been escalating the frequency and extremity of calamities in many parts of the world. More than 83% of the detrimental effects caused by drought occur in the agricultural sector that leads to crop loss and limited productivity, affecting food supplies and livelihood of people and has emerged as the most serious famines inducing factor across the globe (FAO, 2018). Rice is one of the major cereals and its consumption comprises over 27% of total cereal utilisation with an output of 738.2 million tons globally (FAO, 2016). Rice is a paddy field crop with more water requirement for growth and thus drought stress is considered as the major inimical that hinders rice growth, productivity and yield (Mumtaz et al., 2020).Drought stress detrimentally affects rice production by deteriorating everything from seed germination to the reproductive stages

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“…Abscisic acid stress and ripening‐induced (ASR ) gene has been implicated to play a role in abiotic stress tolerance. OsASR1 when overexpressed in rice led to improved tolerance to drought due to the increased accumulation of osmolytes, reduced transpiration rate, and improved regulation of stomatal movement (Park et al, 2020). The citric acid cycle or the TCA as well as amino acid and polyamine biosynthetic pathways were highly affected by HNT especially in sensitive rice varieties (Glaubitz et al, 2015; Glaubitz et al, 2016).…”

Section: Role Of Osmolytes In Abiotic Stress Tolerancementioning

confidence: 99%

Coping with inclement weather conditions due to high temperature and water deficit in rice: An insight from genetic and biochemical perspectives

Rabara

Msanne

Basu

et al. 2020

Physiologia Plantarum

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Climatic fluctuations, temperature extremes, and water scarcity are becoming increasingly unpredictable with the passage of time. Such environmental atrocities have been the scourge of agriculture over the ages, bringing with them poor harvests and threat of famine. Rice production, owing to its high-water requirement for cultivation, is highly vulnerable to the threat of changing climate, particularly prolonged drought and high temperature, individually or in combination. Amidst all the abiotic stresses, heat and drought are considered as the most important concurrent stressors, largely affecting rice yield and productivity under the current scenario. Such threats heighten the need for new breeding and cultivation strategies in generating abiotic stress-resilient rice varieties with better yield potential. Responses of rice to these stresses can be categorized at the morphological, physiological and biochemical levels. This review examines the physiological and molecular mechanism, in the form of up regulation of several defense machineries of rice varieties to cope with drought stress (DS), high temperature stress (HTS), and their combination (DS-HTS). Genotypic differences among rice varieties in their tolerance ability have also been addressed. The review also appraises research studies conducted in rice regarding various phenotypic traits, genetic loci and response mechanisms to stress conditions to help craft new breeding strategies for improved tolerance to DS and HTS, singly or in combination. The review also encompasses the gene regulatory networks and transcription factors, and their cross-talks in mediating tolerance to such stresses. Understanding the epigenetic regulation, involving DNA methylation and histone modification during such hostile situations, will also play a crucial role in our comprehensive understanding of combinatorial stress responses. Taken together, this review consolidates current research and available information on promising rice cultivars with desirable traits as well as advocates synergistic and complementary approaches in molecular and systems biology to develop new rice breeds that favorably respond to DS-HTS-induced abiotic stress.

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ASR Enhances Environmental Stress Tolerance and Improves Grain Yield by Modulating Stomatal Closure in Rice

Cited by 33 publications

References 96 publications

Emerging Molecular Strategies for Improving Rice Drought Tolerance

Emerging Molecular Strategies for Improving Rice Drought Tolerance

Improving drought tolerance in rice: Ensuring food security through multi‐dimensional approaches

Coping with inclement weather conditions due to high temperature and water deficit in rice: An insight from genetic and biochemical perspectives

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