Phenotyping and characterization of heat stress tolerance at reproductive stage in rice (Oryza sativa L.)

Karwa, Sourabh; Bahuguna, Rajeev Nayan; Chaturvedi, Ashish; Maurya, Sadhana; Arya, S.; Chinnusamy, Viswanathan; Pal, Madan

doi:10.1007/s11738-020-3016-5

Cited by 44 publications

(35 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

“…With the increase in global greenhouse gas emissions and changes in climate, HT stress has become a major hazard in rice production especially in warm and tropical regions and it occurs during anthesis (Jagadish et al., 2010; Karwa et al., 2020; Luo & Lau, 2019). For a conventional male fertile rice cultivar or a line and under normal temperature, the process of anthesis or flowering of rice includes spikelet‐opening (the tips of the lemma and palea open), the elongation of anther filament, anther dehisce, and pollen scattering and germination on the stigma (Hoshikawa, 1989).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

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

View full text Add to dashboard Cite

show abstract

“…Since water content and transpiration state of leaf can be indirectly estimated by leaf temperature changes [27], IR thermal imaging is used to accurately and quickly determine the plant temperature change [28]. Therefore, this method has been recently applied to study the response to heat and drought stress [29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

The OsERF115/AP2EREBP110 Transcription Factor Is Involved in the Multiple Stress Tolerance to Heat and Drought in Rice Plants

Park

Kwon

Cho

et al. 2021

IJMS

View full text Add to dashboard Cite

The AP2/EREBP family transcription factors play important roles in a wide range of stress tolerance and hormone signaling. In this study, a heat-inducible rice ERF gene was isolated and functionally characterized. The OsERF115/AP2EREBP110 was categorized to Group-IIIc of the rice AP2/EREBP family and strongly induced by heat and drought treatment. The OsERF115/AP2EREBP110 protein targeted to nuclei and suppressed the ABA-induced transcriptional activation of Rab16A promoter in rice protoplasts. Overexpression of OsERF115/AP2EREBP110 enhanced thermotolerance of seeds and vegetative growth stage plants. The OsERF115/AP2EREBP110 overexpressing (OE) plants exhibited higher proline level and increased expression of a proline biosynthesis P5CS1 gene. Phenotyping of water use dynamics of the individual plant indicates that the OsERF115/AP2EREBP110-OE plant exhibited better water saving traits under heat and drought combined stress. Our combined results suggest the potential use of OsERF115/AP2EREBP110 as a candidate gene for genetic engineering approaches to develop heat and drought stress-tolerant crops.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Phenotyping and characterization of heat stress tolerance at reproductive stage in rice (Oryza sativa L.)

Cited by 44 publications

References 57 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

The OsERF115/AP2EREBP110 Transcription Factor Is Involved in the Multiple Stress Tolerance to Heat and Drought in Rice Plants

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

Contact Info

Product

Resources

About