Influence of calcium channel modulators on the production of serotonin, gentisic acid, and a few other biosynthetically related phenolic metabolites in seedling leaves of salt tolerant rice variety Nonabokra

Abstract For crop production to cope with problems driven by climate change, such as salinity, drought and extreme temperatures, the Bangladesh Institute of Nuclear Agriculture (BINA) released a late Boro rice variety, 'Binadhan-14' in 2013 which is tolerant to high temperature, has short duration (105-115 days) and gives average yield of 6.9 t/ha. This variety was developed by irradiating the seeds of 'Ashfal', a local salt-tolerant landrace of rice, with 200 Gy of carbon-ion beams. The late-transplanting potential of this variety also helps in avoiding seedling injury due to severe cold. Another variety, 'Binadhan-19', was developed by irradiating the seeds of 'NERICA-10' rice with 40 Gy of carbon-ion beams. This was released by the National Seed Board of Bangladesh (NSB) in 2017 as a drought-tolerant, short-duration (95-105 days) and high-yielding (average 4.0 t/ha) variety for the Aus growing season. BINA developed a salt-tolerant wheat variety, 'Binagom-1', by selecting from a segregating population, obtained from NIAB, Pakistan. This variety was released in 2016; it can tolerate salinity (up to 12 dS/m) and produces an average yield of 2.8 t/ha. Apart from these, BINA developed four salt-tolerant groundnut varieties ('Binachinabadam-5', 'Binachinabadam-6', 'Binachinabadam-7' and 'Binachinabadam-9') by irradiation with gamma-rays. All these four varieties can tolerate salinity (up to 8 dS/m) from flowering to maturity and produce pods at 1.8-3.4 t/ha under saline soil conditions. These climate-resilient varieties are playing a significant role in food security and enhancing the nutritional status of the people of Bangladesh.

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Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise

PLoS ONE ◽

10.1371/journal.pone.0229464 ◽

2020 ◽

Vol 15 (3) ◽

pp. e0229464 ◽

Cited By ~ 4

Author(s):

SongYi Paik ◽

Dung Thi Phuong Le ◽

Lien Thi Nhu ◽

Bradford Franklin Mills

Keyword(s):

Sea Level Rise ◽

Sea Level ◽

Rice Variety ◽

River Delta ◽

Mekong River ◽

Salt Tolerant ◽

Mekong River Delta

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Effect of Salt-Tolerant Bacterial Inoculations on Rice Seedlings Differing in Salt-Tolerance under Saline Soil Conditions

Agronomy ◽

10.3390/agronomy10071030 ◽

2020 ◽

Vol 10 (7) ◽

pp. 1030 ◽

Cited By ~ 1

Author(s):

Rakiba Shultana ◽

Ali Tan Kee Zuan ◽

Mohd Rafii Yusop ◽

Halimi Mohd Saud ◽

Arolu Fatai Ayanda

Keyword(s):

Salt Tolerance ◽

Plant Growth ◽

Water Content ◽

Electrolyte Leakage ◽

Relative Water Content ◽

Rice Variety ◽

Salt Tolerant ◽

Relative Water ◽

Plant Growth Promoting ◽

Growth Promoting

Salt-tolerant plant growth-promoting rhizobacteria (PGPR) could be an alternative to alleviate salinity problems in rice plants grown in the coastal areas. This study was conducted to isolate and characterize salt-tolerant PGPR and observe their effects on the physiological and biochemical properties of rice plants grown under non-saline and saline glasshouse conditions. Three strains were selected based on their salt-tolerance and plant growth-promoting properties under in vitro saline conditions. These strains were identified as Bacillus tequilensis (UPMRB9), Bacillus aryabhattai (UPMRE6), and Providencia stuartii (UPMRG1) using a 16S rRNA technique. The selected strains were inoculated to three different rice varieties, namely BRRI dhan67 (salt-tolerant), Putra-1 (moderate salt-tolerant), and MR297 (salt-susceptible) under glasshouse conditions. Results showed that the MR297 rice variety inoculated with UPMRB9 produced the highest total chlorophyll content, with an increment of 28%, and lowest electrolyte leakage of 92%. The Putra-1 rice variety also showed a 156% total dry matter increase with the inoculation of this bacterial strain. The highest increase of relative water content and reduction of Na/K ratio were found upon inoculation of UPMRE6 and UPMRB9, respectively. The biggest significant effects of these bacterial inoculations were on relative water content, electrolyte leakage, and the Na/K ratio of the BRRI dhan67 rice variety under saline conditions, suggesting a synergistic effect on the mechanisms of plant salt-tolerance. This study has shown that the application of locally-isolated salt-tolerant PGPR strains could be an effective long-term and sustainable solution for rice cultivation in the coastal areas, which are affected by global climate change.

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Screening of Some Rice (Oryza sativa L.) Genotypes for Salinity Tolerance using Morphological and Molecular Markers

Biosciences Biotechnology Research Asia ◽

10.13005/bbra/2753 ◽

2019 ◽

Vol 16 (2) ◽

pp. 377-390

Author(s):

Shahabuddin Ahmed ◽

Touhidur Rahman Anik ◽

Ashraful Islam ◽

Imtiaz Uddin ◽

Mohammad S. Haque

Keyword(s):

Oryza Sativa L ◽

Rice Variety ◽

Dry Weight ◽

Crop Productivity ◽

Seedling Stage ◽

Group Method ◽

Salt Tolerant ◽

Pair Group ◽

Salinity Levels ◽

Rice Genotypes

Salinity is one of the major abiotic stresses, which adversely affects the crop productivity. Thirty rice genotypes of diverse origin including three salt tolerant check varieties, Binadhan-8, Binadhan-10 and Pokkali, were used to evaluate salt tolerance at seedling stage and to determine the genetic diversity using microsatellite markers. Salinity screening was done at the seedling stage using hydroponic system following IRRI standard protocol. Three salinity levels as 6dSm-1, 8dSm-1, and 10dSm-1 were used along with control. Data were recorded on root length, shoot length and dry weight and the genotypes were scored based on modified standard evaluation score (SES) for visual injury. Sixteen SSR markers were used to study the genetic variation within 30 rice genotypes. A total of 65 alleles with an average of 4.06 allele per locus were detected among 30 rice genotypes. The polymorphism information content (PIC) value ranged from 0.24 to 0.86 with an average of 0.51. The unweighted pair group method with arithmetic mean (UPGMA) dendrogram revealed four clusters. Among them cluster I identified 5 salt tolerant genotypes and cluster IV separated one tolerant and one moderately tolerant genotype. Based on SES evaluation and molecular analysis genotypes Balam, THDB, Q-31, Ab.Hai, BR-5, FR13A ware salt tolerant; Moulota, Super hybrid, Y-1281, Binadhan-16 were moderate salt tolerant. This information could be useful for selection of suitable genotypes for developing salt tolerant rice variety through molecular breeding.

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CSR23: a new salt-tolerant rice variety for India

International Rice Research Notes ◽

10.3860/irrn.v31i1.1182 ◽

2009 ◽

Vol 31 (1) ◽

Author(s):

RK Singh ◽

GB Gregorio

Keyword(s):

Rice Variety ◽

Salt Tolerant

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Mapping of QTLs Controlling Na+, K+ and CI− Ion Concentrations in Salt Tolerant Indica Rice Variety CSR27

Journal of Plant Biochemistry and Biotechnology ◽

10.1007/bf03263312 ◽

2009 ◽

Vol 18 (2) ◽

pp. 139-150 ◽

Cited By ~ 38

Author(s):

M. H. M. Ammar ◽

Awadhesh Pandit ◽

R. K. Singh ◽

S. Sameena ◽

M. S. Chauhan ◽

...

Keyword(s):

Indica Rice ◽

Rice Variety ◽

Salt Tolerant ◽

Ion Concentrations

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Optimum Sowing Date and Salt Tolerant Variety Boost Rice (Oryza sativa L.) Yield and Water Productivity during BoroSeason in the Ganges Delta

Agronomy ◽

10.3390/agronomy11122413 ◽

2021 ◽

Vol 11 (12) ◽

pp. 2413

Author(s):

Sukanta K. Sarangi ◽

Mohammed Mainuddin ◽

Buddheswar Maji ◽

Kshirendra K. Mahanta ◽

Saheb Digar ◽

...

Keyword(s):

Soil Salinity ◽

Irrigation Water ◽

Water Productivity ◽

Rice Variety ◽

Water Salinity ◽

Salt Tolerant ◽

Sowing Dates ◽

Ganges Delta ◽

The Ganges ◽

Soil And Water

Rice-fallow and rice-rice are major cropping systems in the salt affected region of the Ganges Delta covering West Bengal, India and Bangladesh. The dry season rice (Boro) is grown mostly by irrigation from ground water in this water scarce region. Boro encounters soil and water salinity, air temperature fluctuations and intense evaporative demand. We studied six sowing dates (1 October, 15 October, 1 November, 15 November, 1 December and 15 December) and three varieties (WGL 20471, Bidhan 2 and IET 4786) of rice to find an interacting effect on yield and water productivity. Soil and water salinity varied during the growing period with lower soil salinity during the month of November (2.20–2.53 dS m−1) and higher soil salinity towards the end of the growing season (4.30–5.23 dS m−1). The mean field water salinity was higher (1.78 dS m−1) during the Boro 2017–18 compared to that (1.65 dS m−1) during 2016–17, as about 49 mm rainfall was received in the month of March 2017. Sowing dates significantly affected the yield of Boro rice. Earliest sowing on 1 October is not feasible as it significantly reduced the grain and straw yields. Sowing of nursery up to 1 of November was found to be the best possible option, and it should not be delayed up to 15 December. The rice variety IET 4786 was found to be susceptible to salinity with the lowest grain yield 2.65–2.98 t ha−1, compared to Bidhan 2 (3.41–5.95 t ha−1) and WGL 20471 (3.40–5.81 t ha−1). Both irrigation and economic water productivity of Boro were affected by sowing dates and variety. Rice variety IET 4786 required less irrigation water (1320 mm) than the other two varieties (1350 mm). Higher (>0.5 kg m−3) irrigation water productivity of Boro can be achieved by selecting salt tolerant varieties (WGL 20471 and Bidhan 2) and optimum sowing window of 1–15 November.

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Niab-Irri-9: A New Salt Tolerant and High Yielding Rice Variety

Pakistan Journal of Biological Sciences ◽

10.3923/pjbs.1999.869.870 ◽

1999 ◽

Vol 2 (3) ◽

pp. 869-870 ◽

Cited By ~ 1

Author(s):

Akbar Ali Cheema . ◽

M.A.Awan . ◽

Yousaf Ali .

Keyword(s):

Rice Variety ◽

Salt Tolerant

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Constitutive Overexpression of the Plasma Membrane Na+/H+ Antiporter for Conferring Salinity Tolerance in Rice

Plant Tissue Culture and Biotechnology ◽

10.3329/ptcb.v25i2.26259 ◽

2016 ◽

Vol 25 (2) ◽

pp. 257-272 ◽

Cited By ~ 8

Author(s):

Farida Yasmin ◽

Sudip Biswas ◽

GM Nurnabi Azad Jewel ◽

Sabrina M Elias ◽

Zeba I Seraj

Keyword(s):

Tissue Culture ◽

Plasma Membrane ◽

Indica Rice ◽

Rice Variety ◽

Segregation Ratio ◽

Transformation Method ◽

Cellular Level ◽

Salt Tolerant ◽

In Planta ◽

Rice Transformation

At the cellular level, the Salt Overly Sensitive (SOS) signaling pathway comprising SOS3, SOS2, and SOS1 has been proposed to mediate cellular signaling under salt stress to maintain ion (Na+) homeostasis. In this regulatory pathway, both OsSOS1 encoding plasma membrane and OsNHX1 encoding vacuolar Na+/H+ antiporters are regulated by SOS3?SOS2 protein kinase complex. In the present study, the rice variety BRRI dhan28 - which is popular with farmers and high yielding, but salt sensitive, was transformed with the OsSOS1 gene isolated from salt tolerant Pokkali rice and driven by the constitutive promoter, CaMV35S. The construct was transformed through a tissue culture-independent Agrobacteriummediated in planta transformation method that circumvents the problems associated with tissue culture-based indica rice transformation methods. Integration of the foreign genes (OsSOS1) into the genome of transgenic plants was confirmed by gene-specific PCR and Southern blot analysis. The level of transgene expression (SOS1) was also quantified by semi-quantitative RT PCR and real time PCR. Genetic segregation ratio for T1 progenies was calculated and found to follow the Mendelian law of inheritance in case of positive transformants. The transformants were shown to be salt tolerant compared to wild type in molecular analysis as well as physiological screening. Future work will involve transformation of both the OsSOS1 and OsNHX1 genes together; with the expectation for enhancing the tolerance level compared to currently available transgenic rice.Plant Tissue Cult. & Biotech. 25(2): 257-272, 2015 (December)

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