scholarly journals Physiological Responses of Indica Rice Varieties to Increased Atmospheric CO2 and Temperature

2005 ◽  
Vol 60 (5) ◽  
pp. 601-604
Author(s):  
WMW WEERAKOON ◽  
WAJM de COSTA ◽  
DS de Z. ABEYSIRIWARDENA
Keyword(s):  
Indica Rice ◽  
Physiological Responses ◽  
Rice Varieties

scholarly journals Molecular and Physiological Responses to Abscisic Acid and Salts in Roots of Salt-Sensitive and Salt-Tolerant Indica Rice Varieties

1995 ◽  
Vol 107 (1) ◽  
pp. 177-186 ◽  
Author(s):  
A. Moons ◽  
G. Bauw ◽  
E. Prinsen ◽  
M. Van Montagu ◽  
D. Van Der Straeten
Keyword(s):  
Abscisic Acid ◽  
Indica Rice ◽  
Physiological Responses ◽  
Salt Tolerant ◽  
Rice Varieties

scholarly journals Establishment of Morphogenic and Regeneration Ability in two Indica Rice Cell Suspension Cultures after Exposure to NaCl

1970 ◽  
Vol 19 (2) ◽  
pp. 185-197
Author(s):  
T.L. Aditya
Keyword(s):  
Cell Suspension ◽  
Callus Induction ◽  
Somatic Embryos ◽  
Indica Rice ◽  
Cell Suspension Cultures ◽  
Nacl Stress ◽  
Callus Cultures ◽  
Regeneration Ability ◽  
Rice Varieties

An efficient protocol was developed for in vitro morphogenic ability along with plantlet regeneration of two Bangladeshi indica rice varieties (BR24 and BR26) via somatic embryogenesis by applying 50 mM NaCl stress in callus induction and suspension initiation media. Osmotic stress was induced by NaCl (50, 100, 150, 200 and 250 mM) on the cell growth in suspension maintenance media. In viability test stress adapted cells showed 85 - 95% viability up to 200 mM NaCl compared with stress shocked (MS1-50) and control (MS1-0) treatments. Higher stress adapted cells showed growth retardation and the induction of plasmolysis. For both genotypes somatic embryos were obtained in both MS based liquid and semisolid media with or without 50 and 100 mM NaCl. Cell suspension-derived micro-calli were partially desiccated (6 - 12 hr) and subsequently maintained in MS1 callus induction media supplemented with proline (12 mM), ABA (2 mg/l) and 0.6% phytagel in the presence or absence of 50 and 100 mM NaCl. Subsequently, desiccated somatic embryos were transferred in MS based regeneration media with or without 50 and 100 mM NaCl. Proline mediated callus was found to be more effective in embryo differentiation than ABA. Partial desiccation dramatically enhanced callus growth and partially increased regeneration percentage. BR24 showed a better regeneration response producing plantlets in presence of proline in control media while BR26 restored regeneration potential in the presence of ABA and 100 mM NaCl. Plantlets regenerated from salt stressed callus cultures were then grown in compost in a glasshouse and produced normal, fertile plants.  Key words: Indica rice, Cell suspension, Morphogenic, Regeneration D.O.I. 10.3329/ptcb.v19i2.5436 Plant Tissue Cult. & Biotech. 19(2): 185-197, 2009 (December)

Assessing the correlation of genotypic and phenotypic responses of indica rice varieties under drought stress

2018 ◽  
Vol 127 ◽  
pp. 343-354 ◽  
Author(s):  
Anupama Anupama ◽  
Swati Bhugra ◽  
Brejesh Lall ◽  
Santanu Chaudhury ◽  
Archana Chugh
Keyword(s):  
Drought Stress ◽  
Indica Rice ◽  
Rice Varieties ◽  
Phenotypic Responses

scholarly journals Changes in starch quality of mid-season indica rice varieties in the lower reaches of the Yangtze River in last 80 years

2020 ◽  
Vol 19 (12) ◽  
pp. 2983-2996
Author(s):  
Hao ZHANG ◽  
Wen-jiang JING ◽  
Jing-ju XU ◽  
Bing-ju MA ◽  
Wei-lu WANG ◽  
...  
Keyword(s):  
Yangtze River ◽  
Indica Rice ◽  
The Yangtze River ◽  
Rice Varieties ◽  
Starch Quality

scholarly journals Natural variations of SLG1 confer high-temperature tolerance in indica rice

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yufang Xu ◽  
Li Zhang ◽  
Shujun Ou ◽  
Ruci Wang ◽  
Yueming Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Stress ◽  
Indica Rice ◽  
High Temperature Stress ◽  
Temperature Tolerance ◽  
Cultivated Rice ◽  
Rice Varieties ◽  
Coding Regions ◽  
High Temperature Tolerance ◽  
Living Organisms

Abstract With global warming and climate change, breeding crop plants tolerant to high-temperature stress is of immense significance. tRNA 2-thiolation is a highly conserved form of tRNA modification among living organisms. Here, we report the identification of SLG1 (Slender Guy 1), which encodes the cytosolic tRNA 2-thiolation protein 2 (RCTU2) in rice. SLG1 plays a key role in the response of rice plants to high-temperature stress at both seedling and reproductive stages. Dysfunction of SLG1 results in plants with thermosensitive phenotype, while overexpression of SLG1 enhances the tolerance of plants to high temperature. SLG1 is differentiated between the two Asian cultivated rice subspecies, indica and japonica, and the variations at both promoter and coding regions lead to an increased level of thiolated tRNA and enhanced thermotolerance of indica rice varieties. Our results demonstrate that the allelic differentiation of SLG1 confers indica rice to high-temperature tolerance, and tRNA thiolation pathway might be a potential target in the next generation rice breeding for the warming globe.

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