Salinity Tolerance of Super-Nodulating Soybean Genotype En-b0-1

Yasuta, Yukiko; Kokubun, Makie

doi:10.1626/pps.17.32

Cited by 14 publications

(18 citation statements)

References 46 publications

(56 reference statements)

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“…Salt-induced limitation of nodulation in legumes appears to reduce growth and yield through reducing N uptake (Balasubramanian & Sinha, 1976;Lakshmi-Kumari et al, 1974;Lauter et al, 1981;Singleton & Bohlool, 1984;Tu, 1981;Wilson, 1970). In our previous study, we observed that the significantly improved nodulation of En-b0-1 (a super-nodulating genotype) over its normal parent cultivar was associated with greater tolerance under saline conditions (Yasuta & Kokubun, 2014).…”

Section: Saline Treatmentmentioning

confidence: 92%

“…During the first week, 50 mM NaCl was added, followed by 100 mM in the second week, and 150 mM in the third week. The final NaCl concentration was determined based on previous studies Saline conditions hamper nodule formation in soybean (Singleton & Bohlool, 1984;Yasuta & Kokubun, 2014), significantly reducing growth (Abel & MacKenzie, 1964;Wang & Shannon, 1999) and seed yield (Parker et al, 1983;Yang & Blanchar, 1993). Salt-induced limitation of nodulation in legumes appears to reduce growth and yield through reducing N uptake (Balasubramanian & Sinha, 1976;Lakshmi-Kumari et al, 1974;Lauter et al, 1981;Singleton & Bohlool, 1984;Tu, 1981;Wilson, 1970).…”

Section: Saline Treatmentmentioning

confidence: 99%

“…En-b0-1 and En1282 are super-nodulating and non-nodulating genotypes, respectively, and are the progeny of Enrei × En6500, an ethyl methylsulfonate-induced Enrei mutant (Akao & Kouchi, 1992). Even under saline conditions, En-b0-1 forms significantly more nodules and thus exhibits higher N 2 fixation activity than Enrei, traits that partly contribute to its higher salinity tolerance that clearly distinguished cultivar differences in salinity tolerance after treatments with 100-150 mM NaCl (Lee et al, 2008;Valencia et al, 2008;Yasuta & Kokubun, 2014). Control plants were supplied with tap water using the same box setup as the saline treatments.…”

Section: Plant Materialsmentioning

confidence: 99%

“…These studies indicate that it is feasible to screen for or breed genotypes with an improved capacity of regulating the specific ions responsible for salt tolerance. (Yasuta & Kokubun, 2014). Finally, NILs72-T and NILs72-S are salt-tolerant and -sensitive progenies, respectively, of an RIL population resulting from a cross between salt-tolerant FT-Abyara and salt-sensitive C01 (Do et al, 2016;Hamwieh et al, 2011).…”

mentioning

confidence: 99%

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Genotypic variation in salinity tolerance and its association with nodulation and nitrogen uptake in soybean

Song

Nakajima

et al. 2017

Plant Production Science

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Saline soils hamper various physiological functions in soybean [Glycine max (L.) Merr.]. One example is the reduction in nitrogen (N) uptake capacity, a major dysfunction that limits soybean growth and yield under saline conditions. Previous studies have revealed that tolerance to salinity varies with cultivar; however, the cultivars used in these studies were selected solely based on agromorphological traits. In this study, we examined genotypic variation in salinity tolerance among 85 soybean genotypes which were selected based on an assessment of both single nucleotide polymorphisms (SNP) markers and agro-morphological traits. Additionally, we examined whether salt tolerance is associated with nodulation and N uptake. We used a subset of the world soybean mini-core collection (80 cultivars) and an additional five cultivars/genetic lines (NILs72-T, NILs72-S, Enrei, En-b0-1, and En1282). All plants were grown in pots and treated with saline (final concentration of 150 mM NaCl) during the vegetative growth stage. To evaluate salinity tolerance, we used the ratio of saline-treated (S) to control (C) plant total dry weight [DW (S/C)]. The ratio differed markedly according to genotype. Furthermore, salinity-tolerant genotypes exhibited superior nodulation, leaf greenness, and N uptake under saline conditions. These results indicate that there is a marked genotypic variation in salinity tolerance, and that the tolerant genotypes exhibit greater nodulation and N uptake, although further studies are needed to clarify whether the superior nodulation and N uptake of salinity-tolerant genotypes are responsible for the observed tolerance.

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Section: Saline Treatmentmentioning

confidence: 92%

Section: Saline Treatmentmentioning

confidence: 99%

Section: Plant Materialsmentioning

confidence: 99%

mentioning

confidence: 99%

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Genotypic variation in salinity tolerance and its association with nodulation and nitrogen uptake in soybean

Song

Nakajima

et al. 2017

Plant Production Science

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“…Salt-tolerant legumes can be obtained through either conventional or molecular marker-assisted procedures that help to introduce new tolerance traits into elite lines of grain legumes for the sustainable restoration of salt-degraded soils (Foyer et al, 2016;Mishra, Panda, & Sahoo, 2014;Yasuta & Kokubun, 2014). With respect to selecting and breeding legume cultivars with the potential to be used for reclaiming saline soils, field phenotyping is becoming the method of choice (Campbell et al, 2015;Khan, Siddique, & Colmer, 2016;Roy et al, 2014;Tuberosa, 2012).…”

Section: Why Should Legumes Be Considered and Selected For Reclaimimentioning

confidence: 99%

Salt stress tolerance mechanisms and potential applications of legumes for sustainable reclamation of salt‐degraded soils

et al. 2018

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Soil salinity is considered one of the most detrimental environmental problems affecting the productivity of many agricultural crops, with negative effects on seed germination, plant vigour, and crop yields. To mitigate these negative effects, it is necessary to restrategize and identify viable options that are environmentally and economically applicable for sustainable agriculture. This review summarizes and evaluates soil reclamation strategies that have been employed and those that could potentially be used, concentrating on the use of legume crops. Apart from the fact that legumes have many nutritional benefits as foods, they are also an attractive option to refertilize degraded and nitrogen‐deficient soils. Thus, the potential use of grain, grass, shrubby, and tree legumes to restore degraded soils requires evaluation. In this paper, we discuss and evaluate why legumes should be considered and used for the reclamation of degraded soils, with a particular focus on salt‐degraded soils. Globally relevant case‐studies that demonstrate how legumes could be used to reclaim salt‐degraded soils are highlighted.

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Salinity Stress Responses and Adaptive Mechanisms in Major Glycophytic Crops: The Story So Far

Kataria

Verma²

2018

Salinity Responses and Tolerance in Plants, Volume 1

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Salinity Tolerance of Super-Nodulating Soybean Genotype En-b0-1

Cited by 14 publications

References 46 publications

Genotypic variation in salinity tolerance and its association with nodulation and nitrogen uptake in soybean

Genotypic variation in salinity tolerance and its association with nodulation and nitrogen uptake in soybean

Salt stress tolerance mechanisms and potential applications of legumes for sustainable reclamation of salt‐degraded soils

Salinity Stress Responses and Adaptive Mechanisms in Major Glycophytic Crops: The Story So Far

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