Identification of differentially expressed genes under heat stress conditions in rice (Oryza sativa L.)

Wahab, Mustaq Mohammed S; Srividhya, A.; Shanthi, P.; Latha, P.

doi:10.1007/s11033-020-05291-z

Cited by 20 publications

(12 citation statements)

References 21 publications

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“…The finding that JAs could alleviate spikelet‐opening impairment caused by HT stress during anthesis of PTSGMS lines would have great significance in the production of “two‐line‐method” hybrid rice. Firstly, it is an important strategy to breed and select a heat tolerant rice cultivar or a line to cope with the increasing hazard of HT stress to rice production (Karwa et al., 2020; Luo & Lau, 2019; Wahab, Akkareddy, Shanthi, & Latha, 2020; Wang et al., 2020). A higher level of JA or MeJA in the lodicules under HT stress could be used as a criterion, at least as a physiological trait, for breeding and selecting a heat tolerant rice cultivar especially a PTSGMS rice line.…”

Section: Discussionmentioning

confidence: 99%

Jasmonates alleviate spikelet‐opening impairment caused by high temperature stress during anthesis of photo‐thermo‐sensitive genic male sterile rice lines

Yang

Fei

Chen

et al. 2020

Food and Energy Security

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Section: Discussionmentioning

confidence: 99%

Jasmonates alleviate spikelet‐opening impairment caused by high temperature stress during anthesis of photo‐thermo‐sensitive genic male sterile rice lines

Yang

Fei

Chen

et al. 2020

Food and Energy Security

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“…With the increase in global greenhouse effect and changes in climate, HT stress has become one of the most detrimental stresses among constantly changing environmental factors (Jagadish et al, 2010 ; Luo and Lau, 2019 ; Karwa et al, 2020 ; Wahab et al, 2020 ). The flowering or anthesis stage in rice plants is most vulnerable to HT stress (Jagadish et al, 2010 ; Luo and Lau, 2019 ; Chen et al, 2020 ; Yang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Jasmonates Alleviate the Harm of High-Temperature Stress During Anthesis to Stigma Vitality of Photothermosensitive Genetic Male Sterile Rice Lines

et al. 2021

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Using photothermosensitive genic male sterile (PTSGMS) rice (Oryza sativa L.) lines to produce hybrids can obtain great heterosis. However, PTSGMS rice lines exhibit low stigma vitality when high-temperature (HT) stress happens during anthesis. Jasmonates (JAs) are novel phytohormones and play vital roles in mediating biotic and abiotic stresses. Little is known, however, if and how JAs could alleviate the harm of HT stress during anthesis to the stigma vitality of PTSGMS lines. This study investigated the question. Two PTSGMS lines and one restorer line of rice were pot-grown and subjected to normal temperature and HT stress during anthesis. The stigma exertion rate, sigma fresh weight, stigma area, contents of JAs, hydrogen peroxide (H2O2), and ascorbic acid (AsA), activity of catalase in stigmas, and the number of pollens germinated on the stigma of PTSGMS lines were determined. The results showed that a rice line with higher JAs content in the stigma under HT stress showed lower H2O2 content, higher AsA content and catalase activity in stigmas, larger stigma area, heavier stigma fresh weight, more pollens germinated on the stigma, and higher fertilization and seed-setting and rates. Applying methyl JAs during anthesis to rice panicles decreased the accumulation of reactive oxygen species and enhanced stigma vitality, thereby increasing fertilization and seed-setting rates of the hybrids of PTSGMS rice lines under HT stress. The results demonstrate that JAs attenuate the injury of HT stress to the stigma vitality of PTSGMS rice lines through enhancing antioxidant ability.

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“…Rice (Oryza sativa) is an important staple food crop that are highly sensitive to high temperature stress at every growth stage such as seed germination, growth, and reproduction, particularly during the reproductive and grain-filling stages [18][19][20][21]. High temperatures have been shown to negatively affect rice yield and quality.…”

Section: Introductionmentioning

confidence: 99%

Heterologous expression of heat stress-responsive AtPLC9 confers heat tolerance in transgenic rice

Liu¹,

Liu²,

Wang³

et al. 2020

BMC Plant Biol

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Background As global warming becomes increasingly severe, it is urgent that we enhance the heat tolerance of crops. We previously reported that Arabidopsis thaliana PHOSPHOINOSITIDE-SPECIFIC PHOSPHOLIPASE C9 (AtPLC9) promotes heat tolerance. Results In this study, we ectopically expressed AtPLC9 in rice to examine its potential to improve heat tolerance in this important crop. Whereas AtPLC9 did not improve rice tolerance to salt, drought or cold, transgenic rice did exhibit greater heat tolerance than the wild type. High-throughput RNA-seq revealed extensive and dynamic transcriptome reprofiling in transgenic plants after heat stress. Moreover, the expression of some transcription factors and calcium ion-related genes showed specific upregulation in transgenic rice after heat stress, which might contribute to the enhanced heat tolerance. Conclusions This study provides preliminary guidance for using AtPLC9 to improve heat tolerance in cereal crops and, more broadly, highlights that heterologous transformation can assist with molecular breeding.

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Identification of differentially expressed genes under heat stress conditions in rice (Oryza sativa L.)

Cited by 20 publications

References 21 publications

Jasmonates alleviate spikelet‐opening impairment caused by high temperature stress during anthesis of photo‐thermo‐sensitive genic male sterile rice lines

Jasmonates alleviate spikelet‐opening impairment caused by high temperature stress during anthesis of photo‐thermo‐sensitive genic male sterile rice lines

Jasmonates Alleviate the Harm of High-Temperature Stress During Anthesis to Stigma Vitality of Photothermosensitive Genetic Male Sterile Rice Lines

Heterologous expression of heat stress-responsive AtPLC9 confers heat tolerance in transgenic rice

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