scholarly journals Identification and Comparative Analysis of Premature Senescence Leaf Mutants in Rice (Oryza sativa L.)

2018 ◽  
Vol 19 (1) ◽  
pp. 140 ◽  
Author(s):  
Yan He ◽  
Liangjian Li ◽  
Zhihong Zhang ◽  
Jian-Li Wu
Keyword(s):  
Oryza Sativa ◽  
Comparative Analysis ◽  
Oryza Sativa L ◽  
Premature Senescence ◽  
Leaf Mutants

Premature Senescence Leaf 50 Promotes Heat Stress Tolerance in Rice (Oryza Sativa L.)

2020 ◽  
Author(s):  
Yan He ◽  
Xiao-bo Zhang ◽  
Yongfeng Shi ◽  
Xia Xu ◽  
Liangjian Li ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Heat Stress ◽  
Leaf Senescence ◽  
Oryza Sativa L ◽  
Premature Senescence ◽  
Causal Gene ◽  
Senescent Leaf ◽  
Heat Stress Tolerance ◽  
Premature Leaf Senescence ◽  
Leaf Mutants

Abstract BackgroundHeat stress is a major environmental factor that could induce premature leaf senescence in plants. So far, few rice premature senescent leaf mutants have been reported to involve in heat tolerance.FindingsWe identified a premature senescence leaf 50 (psl50) mutant that exhibited a higher heat susceptibility with decreased survival rate, over-accumulated hydrogen peroxide (H2O2) content and increased cell death under heat stress compared with the wild-type. The causal gene PREMATURE SENESCENCE LEAF 50 (PSL50) was isolated by using initial map-based resequencing (IMBR) approach, and we found that PSL50 promoted heat tolerance probably by acting as a modulator of H2O2 signaling in response to heat stress in rice (Oryza sativa L.).ConclusionsPSL50 negatively regulates heat-induced premature leaf senescence in rice.

scholarly journals PREMATURE SENESCENCE LEAF 50 Promotes Heat Stress Tolerance in Rice (Oryza sativa L.)

Rice ◽  
2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Yan He ◽  
Xiaobo Zhang ◽  
Yongfeng Shi ◽  
Xia Xu ◽  
Liangjian Li ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Heat Stress ◽  
Leaf Senescence ◽  
Heat Tolerance ◽  
Oryza Sativa L ◽  
Premature Senescence ◽  
Senescent Leaf ◽  
Heat Stress Tolerance ◽  
Premature Leaf Senescence ◽  
Leaf Mutants

Abstract Background Heat stress is a major environmental factor that could induce premature leaf senescence in plants. So far, a few rice premature senescent leaf mutants have been reported to involve in heat tolerance. Findings We identified a premature senescence leaf 50 (psl50) mutant that exhibited a higher heat susceptibility with decreased survival rate, over-accumulated hydrogen peroxide (H2O2) content and increased cell death under heat stress compared with the wild-type. The causal gene PREMATURE SENESCENCE LEAF 50 (PSL50) was isolated by using initial map-based resequencing (IMBR) approach, and we found that PSL50 promoted heat tolerance probably by acting as a modulator of H2O2 signaling in response to heat stress in rice (Oryza sativa L.). Conclusions PSL50 negatively regulates heat-induced premature leaf senescence in rice.

Comparative analysis of nine different small heat shock protein gene promoters in Oryza sativa L. subsp. indica

2016 ◽  
Vol 302 (9) ◽  
pp. 1195-1206 ◽  
Author(s):  
Waseem Safdar ◽  
Haroon Ahmed ◽  
Nazish Bostan ◽  
Nadia Batool Zahra ◽  
Hafiz Rizwan Sharif ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Comparative Analysis ◽  
Heat Shock ◽  
Heat Shock Protein ◽  
Protein Gene ◽  
Oryza Sativa L ◽  
Small Heat Shock Protein ◽  
Gene Promoters ◽  
Heat Shock Protein Gene

Genetic analysis and high-resolution mapping of a premature senescence gene Pse(t) in rice (Oryza sativa L.)

Genome ◽  
2005 ◽  
Vol 48 (4) ◽  
pp. 738-746 ◽  
Author(s):  
Fuzhen Li ◽  
Guocheng Hu ◽  
Yaping Fu ◽  
Huamin Si ◽  
Xuemei Bai ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
High Resolution ◽  
Genetic Analysis ◽  
Oryza Sativa L ◽  
Nuclear Gene ◽  
Physical Distance ◽  
Premature Senescence ◽  
Genetic Linkage Analysis ◽  
High Resolution Mapping ◽  
Resolution Mapping

A rice mutant, designated pse(t) (premature senescence, tentatively), was isolated from a T-DNA-inserted transgenic population. Senescence advanced more markedly in pse(t) than in wild-type ('Zhonghua 11', japonica) plants. Genetic analysis of pse(t) revealed that the premature senescence mutation was controlled by a single recessive nuclear gene, but that it was not induced by T-DNA insertion. In an effort to understand the genetic and molecular basis underlying premature senescence in rice, a map-based cloning strategy was used to localize Pse(t). High-resolution mapping of the Pse(t) locus was carried out using simple sequence repeat (SSR) and cleaved amplified polymorphic sequence (CAPS) markers. An F2 population, comprising 1691 pse(t) individuals derived from a cross of the pse(t) mutant with 'Longtepu' (indica), was constructed. Several new polymorphism markers were developed in this study. Genetic linkage analysis showed that the Pse(t) gene was located on the long arm of chromosome 7. It was found that the Pse(t) gene cosegregated with 3 markers and was flanked by markers SS22 and PP21. Thus, the Pse(t) gene is located within a genetic distance of 0.15 cM, corresponding to a physical distance of 220 kb. These findings provide the basic information that can be used for the final isolation of this gene in the rice premature-senescence pathway.Key words: genetic analysis, high-resolution mapping, Oryza sativa L., premature senescence.

Comparative analysis of agro-morphology, grain quality and aroma traits of traditional and Basmati-type genotypes of rice, Oryza sativa L.

2012 ◽  
Vol 131 (4) ◽  
pp. 486-492 ◽  
Author(s):  
Somnath Roy ◽  
Amrita Banerjee ◽  
Bijoy K. Senapati ◽  
Gurupada Sarkar
Keyword(s):  
Oryza Sativa ◽  
Comparative Analysis ◽  
Grain Quality ◽  
Oryza Sativa L

Comparative analysis of physicochemicals and antioxidative properties in new red rice (Oryza sativa L. cv. Gunganghongmi)

2013 ◽  
Vol 16 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Woo Duck Seo ◽  
Jun Young Kim ◽  
You-Chun Song ◽  
Jun-Hyun Cho ◽  
Ki Chang Jang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Comparative Analysis ◽  
Oryza Sativa L ◽  
Red Rice ◽  
Antioxidative Properties

scholarly journals Comparative analysis on grain quality and yield of different panicle weight indica-japonica hybrid rice (Oryza sativa L.) cultivars

2020 ◽  
Vol 19 (4) ◽  
pp. 999-1009 ◽  
Author(s):  
Jin-long BIAN ◽  
Gao-lei REN ◽  
Chao HAN ◽  
Fang-fu XU ◽  
Shi QIU ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Comparative Analysis ◽  
Grain Quality ◽  
Hybrid Rice ◽  
Oryza Sativa L ◽  
Panicle Weight
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