scholarly journals Salt Tolerance of Barak Cenana Rice (Oryza sativa L cv. Barak Cenana) EMS Derived M1 Putative Mutants

2020 ◽  
Author(s):  
Ida Bagus Made Artadana ◽  
Aurelia Nadine Handoyo ◽  
Popy H. Hardjo ◽  
Maria Goretti Purwanto
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Salt Tolerance ◽  
Oryza Sativa L ◽  
Rice Cultivar ◽  
Red Rice ◽  
Random Mutation ◽  
Tolerance Level ◽  
Stable Mutant ◽  
Mutant Lines

Barak Cenana (Oryza sativa L cv. Barak Cenana) is a native red rice cultivar of Tabanan regency, Bali. We have previously created first-generation putative mutants (M1) lines of Barak Cenana using EMS. In this study, we aim to evaluate M1 lines tolerance to salt stress. Three-leaf seedlings of WT Barak Cenana and M1 lines were cultured in hydroponic system containing Yoshida solution and 100 mM NaCl for 7 days. The salt tolerance level of each seedling was evaluated using SES standard and the survived seedlings were transferred into the pot-containing soil growth for maturation. All WT were died when treated with 100 mM NaCl for 7 days. In contrast, some M1 lines were survived where 0.5% were highly tolerance (II2A-4) and 4.06% (1F-4, 1F-3, II2A-8, IID-1, IID-4, IID-6 and 1B-6) were tolerance to salt stress. This variation of salt tolerance level among M1 lines is likely due to the random mutation caused by EMS. Furthermore, all survived mutants were fertile and able to produce mature seeds. As characters in M1 generation are not stable, future studies are required to establish stable mutant lines. Keywords: Rice, EMS, Mutants, Barak Cenana, salt tolerance

Physiological characterisation and fine mapping of a salt-tolerant mutant in rice (Oryza sativa)

2015 ◽  
Vol 42 (11) ◽  
pp. 1026 ◽  
Author(s):  
Ping Deng ◽  
Dan Jiang ◽  
Yanmin Dong ◽  
Xingyu Shi ◽  
Wen Jing ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Salt Tolerance ◽  
Oryza Sativa L ◽  
Recessive Gene ◽  
Nacl Stress ◽  
Shoot Biomass ◽  
Salt Tolerant ◽  
Candidate Locus ◽  
F2 Population

Salt-tolerant mutants are valuable resources for basic and applied research on plant salt tolerance. Here, we report the isolation and characterisation of a salt-tolerant rice (Oryza sativa L.) mutant. This mutant was identified from an ethyl methanesulfonate-induced Nipponbare mutant library, designated as rice salt tolerant 1 (rst1). The rst1 mutant was tolerant to salt stress and showed significantly higher shoot biomass and chlorophyll content, but lower lipid peroxidation and electrolyte leakage under NaCl stress. The improved salt tolerance of this mutant may be due mainly to its enhanced ability to restrict Na+ accumulation in shoots under salt stress conditions. Genetic analysis indicated that the salt tolerance of the rst1 mutant was controlled by a single recessive gene. Quantitative trait locus (QTL) mapping for salt tolerance was performed using an F2 population of rst1 × Peiai 64. Two QTLs were detected, in which the locus on chromosome 6 was determined to be the candidate locus of the rst1 gene. The rst1 locus was subsequently shown to reside within a 270.4-kb region defined by the markers IM29432 and IM29702. This result will be useful for map-based cloning of the rst1 gene and for marker-assisted breeding for salt tolerance in rice.

The role of the bifunctional enzyme, fructose-6-phosphate-2-kinase/fructose-2,6-bisphosphatase, in carbon partitioning during salt stress and salt tolerance in Rice (Oryza sativa L.)

Plant Science ◽  
2009 ◽  
Vol 176 (3) ◽  
pp. 334-341 ◽  
Author(s):  
Thanikarn Udomchalothorn ◽  
Somporn Maneeprasobsuk ◽  
Eakaphan Bangyeekhun ◽  
Preeda Boon-Long ◽  
Supachitra Chadchawan
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Salt Tolerance ◽  
Oryza Sativa L ◽  
Carbon Partitioning ◽  
Bifunctional Enzyme

Exogenous ABA induces salt tolerance in indica rice (Oryza sativa L.): The role of OsP5CS1 and OsP5CR gene expression during salt stress

2013 ◽  
Vol 86 ◽  
pp. 94-105 ◽  
Author(s):  
Siriporn Sripinyowanich ◽  
Pongsathorn Klomsakul ◽  
Bongkoj Boonburapong ◽  
Thapana Bangyeekhun ◽  
Tadao Asami ◽  
...  
Keyword(s):  
Gene Expression ◽  
Oryza Sativa ◽  
Salt Stress ◽  
Salt Tolerance ◽  
Oryza Sativa L ◽  
Indica Rice ◽  
Exogenous Aba

scholarly journals Photosynthetic Performance in Improved ‘KDML105’ Rice (Oryza sativa L.) Lines Containing Drought and Salt Tolerance Genes under Drought and Salt Stress

2020 ◽  
Vol 43 (4) ◽  
Author(s):  
Dechudom Pamuta ◽  
Meechai Siangliw ◽  
Jirawat Sanitchon ◽  
Jarunjit Pengrat ◽  
Jonaliza L. Siangliw ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Drought Stress ◽  
Salt Tolerance ◽  
Quantum Yield ◽  
Oryza Sativa L ◽  
Photosynthetic Performance ◽  
Psii Photochemistry ◽  
Drought And Salt Stress ◽  
Quantum Yield Of Psii

Rice (Oryza sativa L.) ‘KDML105’ is the most popular aromatic rice originating in Thailand. This cultivar is highly susceptible to abiotic stresses, especially drought and salt stress during the seedling stage. The objective of this study was to investigate the photosynthetic performance in response to drought and salt stress of four improved breeding lines, specifically CSSL94 and CSSL103 (containing drought-tolerant quantitative trait loci: DT-QTLs) and RGD1 and RGD4 (containing a salt-tolerance gene, SKC1), with ‘KDML105’ (susceptible) and DH103 (tolerant to drought and salt stress) as the controls. Rice seedlings were grown for 21 days in hydroponic solutions and then exposed to salt stress (150 mM NaCl) or drought stress (20% PEG6000) for 10 days. The results indicated that when subjected to drought and salt stress, all rice lines/cultivar exhibited significant reductions in net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E), the maximal quantum yield of PSII photochemistry (Fv/Fm), the effective quantum yield of PSII photochemistry (Fv’/Fm’), photosynthetic pigments, and SPAD readings, whereas water use efficiency (WUE) and non-photochemical quenching (NPQ) increased. Compared with ‘KDML105’, CSSL94, and CSSL103 were more tolerant to both drought and salinity, showing less reduction in all photosynthetic parameters. For RGD1 and RGD4, it was confirmed that these lines had a higher level of salt tolerance than ‘KDML105’ based on better photosynthetic performance under salt stress, demonstrating that these lines were also more tolerant to drought stress.

High-density linkage mapping for agronomic and physiological traits of rice (Oryza sativa L.) under reproductive-stage salt stress

2021 ◽  
Vol 100 (2) ◽  
Author(s):  
Mostafa Ahmadizadeh ◽  
Nadali Babaeian-Jelodar ◽  
Ghasem Mohammadi-Nejad ◽  
Nadali Bagheri ◽  
Rakesh Kumar Singh
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Linkage Mapping ◽  
Oryza Sativa L ◽  
High Density ◽  
Reproductive Stage ◽  
Physiological Traits

Silicon alleviates salt stress-induced potassium deficiency by promoting potassium uptake and translocation in rice (Oryza sativa L.)

2021 ◽  
Vol 258-259 ◽  
pp. 153379
Author(s):  
Guochao Yan ◽  
Xiaoping Fan ◽  
Wanning Zheng ◽  
Zixiang Gao ◽  
Chang Yin ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Oryza Sativa L ◽  
Potassium Deficiency ◽  
Potassium Uptake

scholarly journals Performance of the agronomic traits of six advanced promising lines of red rice (oryza sativa l.) grown on the paddy field

2021 ◽  
Vol 681 (1) ◽  
pp. 012033
Author(s):  
G R Sadimantara ◽  
E Febrianti ◽  
LO Afa ◽  
S Leomo ◽  
Muhidin ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Paddy Field ◽  
Agronomic Traits ◽  
Oryza Sativa L ◽  
Red Rice

Red Rice (Oryza sativa) Control in Drill-Seeded Rice (O. sativa)

Weed Science ◽  
1985 ◽  
Vol 33 (5) ◽  
pp. 703-707 ◽  
Author(s):  
Amadou Diarra ◽  
Roy J. Smith ◽  
Ronald E. Talbert
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Field Experiments ◽  
Growing Season ◽  
Rice Cultivar ◽  
Rice Grain ◽  
Rice Seed ◽  
Red Rice ◽  
Culm Density ◽  
High Yields

Field experiments were conducted to investigate methods of controlling red rice (Oryza sativaL. ♯ ORYSA) in drill-seeded rice (O. sativa). Treatments included the rice cultivar ‘Mars', coated with calcium peroxide (CaO2) at 40% (w/w) and a crop protectant, R-33865 (O,O-diethyl-O-phenyl phosphorothioate) at 0.5 and 1% (v/w). Molinate (S-ethyl hexahydro-1H-azepine-1-carbothioate) at 6.7 kg ai/ha was applied preplant incorporated (ppi). The land was flooded (2.5 to 5 cm deep) after seeding with rice (100 kg/ha, 2.5 cm deep), and the water was maintained throughout the growing season. CaO2, with or without molinate, increased rice grain yield 50% and increased rice culm density fivefold above untreated rice. Molinate applied ppi controlled 96% of the red rice. Rice seed coated with only CaO2or with CaO2plus R-33865 at 0.5%, each combined with ppi molinate, produced 5690 and 6030 kg/ha of grain, respectively. These high yields were associated with red rice control by molinate and good stands of rice provided by O2supplied by CaO2. R-33865 applied to rice seed at 1% (v/w) injured rice by reducing rice culm densities 41%, compared with rice without protectant.

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