Relative contribution of Na + /K + homeostasis, photochemical efficiency and antioxidant defense system to differential salt tolerance in cotton ( Gossypium hirsutum L.) cultivars

Wang, Ning; Qiao, Wenqing; Xiao-hong, Liu; Shi, Jianbin; Xu, Qinghua; Zhou, Hong; Yan, Gentu; Huang, Qun

doi:10.1016/j.plaphy.2017.08.024

Cited by 51 publications

(35 citation statements)

References 35 publications

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“…In our study, based on the result of GO enrichment of modules genes, genes at all the stages were involved in "oxidoreductase activity" and "oxidation-reduction process" in root. The higher tolerance cotton cultivars and better antioxidant defense capacity [43]. This result indicated that oxidation-reduction process plays an important role in the salt-alkali stress response of cotton root.…”

Section: Co-expression Network and Module Constructionmentioning

confidence: 79%

Genetic regulatory networks for salt-alkali stress in Gossypium hirsutum with differing morphological characteristics

Magwanga

Yang

et al. 2020

BMC Genomics

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Background: Cotton grows in altering environments that are often unfavorable or stressful for its growth and development. Consequently, the plant must cope with abiotic stresses such as soil salinity, drought, and excessive temperatures. Alkali-salt stress response remains a cumbersome biological process and is regulated via a multifaceted transcriptional regulatory network in cotton. Results: To discover the molecular mechanisms of alkali-salt stress response in cotton, a comprehensive transcriptome analysis was carried out after alkali-salt stress treatment in three accessions of Gossypium hirsutum with contrasting phenotype. Expression level analysis proved that alkali-salt stress response presented significant stage-specific and tissue-specific. GO enrichment analysis typically suggested that signal transduction process involved in salt-alkali stress response at SS3 and SS12 stages in leaf; carbohydrate metabolic process and oxidationreduction process involved in SS48 stages in leaf; the oxidation-reduction process involved at all three phases in the root. The Co-expression analysis suggested a potential GhSOS3/GhCBL10-SOS2 network was involved in salt-alkali stress response. Furthermore, Salt-alkali sensitivity was increased in GhSOS3 and GhCBL10 Virus-induced Gene Silencing (VIGS) plants. Conclusion: The findings may facilitate to elucidate the underlying mechanisms of alkali-salt stress response and provide an available resource to scrutinize the role of candidate genes and signaling pathway governing alkali-salt stress response.

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Section: Co-expression Network and Module Constructionmentioning

confidence: 79%

Genetic regulatory networks for salt-alkali stress in Gossypium hirsutum with differing morphological characteristics

Magwanga

Yang

et al. 2020

BMC Genomics

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“…The higher tolerance cotton cultivars and better antioxidant defense capacity [43]. This result indicated that oxidation-reduction process plays an important role in the salt-alkali stress response of cotton root.…”

Section: Co-expression Network and Module Constructionmentioning

confidence: 79%

Genetic Regulatory Networks for Salt-Alkali Stress in Gossypium hirsutum With Differing Morphological Characteristics

Magwanga

Xiu

et al. 2019

Preprint

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Background Cotton grows in altering environments that are often unfavorable or stressful for its growth and development. Consequently, the plant must cope with abiotic stresses such as soil salinity, drought, and excessive temperatures. Alkali-salt stress response remains a cumbersome biological process and is regulated via a multifaceted transcriptional regulatory network in cotton Results To discover the molecular mechanisms of alkali-salt stress response in cotton, a comprehensive transcriptome analysis was carried out after alkali-salt stress treatment in three accessions of Gossypium hirsutum with contrasting phenotype. Expression level analysis proved that alkali-salt stress response presented significant stage-specific and tissue-specific. GO enrichment analysis typically suggested that signal transduction process involved in salt-alkali stress response at SS3 and SS12 stages in leaf; carbohydrate metabolic process and oxidation-reduction process involved in SS48 stages in leaf; the oxidation-reduction process involved at all three phases in the root. The Co-expression analysis suggested a potential GhSOS3/GhCBL10-SOS2 network was involved in salt-alkali stress response. Furthermore, Salt-alkali sensitivity was increased in GhSOS3 and GhCBL10 Virus-induced Gene Silencing (VIGS) plants. Conclusion The findings may facilitate to elucidate the underlying mechanisms of alkali-salt stress response and provide an available resource to scrutinize the role of candidate genes and signaling pathway governing alkali-salt stress response Keywords: Alkali-Salt Stress; RNA-Seq; Gene Co-Expression; Gossypium Hirsutum Races; WGCNA

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“…Concentration of sodium inside the plant in different parts is a reliable physiological parameter for salt stress (Wang et al, 2017b). High sodium accumulation disrupts various metabolic processes in the plants.…”

Section: Discussionmentioning

confidence: 99%

Genotypic variations in salinity tolerance among Bt cotton

Farooq¹,

Shakeel²,

Atif³

et al. 2019

PAK.J.BOT.

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Salinity stress is one of the most serious environmental problem that negatively affects the growth of plants, especially in arid and semi-arid regions. Scientists have been struggling to address this problem through land reclamation methods and by adding various organic manures into the soil. However, the most cost effective method is to develop salt tolerant varieties. Keeping this in view, fifty cotton genotypes were collected from different areas and were subjected to evaluation. Plants were irrigated with nutrient solution with an electrical conductivity of 10dSm-1 and 15dSm-1 from 10 th day seedlings stage to 40 th day. Plants were harvested when they were 40 days old and the data was compared at absolute value and relative values from the seedlings. Analysis of variance indicated that there were significant differences among genotypes at control and both salinity levels. Results showed that salinity adversely affected the root length, shoot length, fresh root weight, fresh shoot weight, dry shoot weight, dry root weight in comparison to chlorophyll contents. Magnitude of Sodium under NaCl stress increased many folds and reduction in potassium was also witnessed in the leaves. Broad sense heritability was high whereas phenotypic variance is equal or less than genotypic variances. The genotypes that perform better for the trait that had high broad sense heritability were selected as salt tolerant genotypes such as KEHKSHAN, S-3, NIAB-824 and MNH-988 whereas C-26, FH-114 and FH-173 were conceived as salt sensitive genotypes. The results indicate that selection for cotton will be problematic due to masking effects of environment, and imply rigorous and careful selection of salt tolerant genotypes.

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Relative contribution of Na + /K + homeostasis, photochemical efficiency and antioxidant defense system to differential salt tolerance in cotton ( Gossypium hirsutum L.) cultivars

Cited by 51 publications

References 35 publications

Genetic regulatory networks for salt-alkali stress in Gossypium hirsutum with differing morphological characteristics

Genetic regulatory networks for salt-alkali stress in Gossypium hirsutum with differing morphological characteristics

Genetic Regulatory Networks for Salt-Alkali Stress in Gossypium hirsutum With Differing Morphological Characteristics

Genotypic variations in salinity tolerance among Bt cotton

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