Calcium and soluble sugar enrichments and physiological adaptation to mild NaCl salt stress in sweet potato (<i>Ipomoea batatas</i>) genotypes

Kitayama, Mizuki; Samphumphuang, Thapanee; Tisarum, Rujira; Theerawitaya, Cattarin; Cha-um, Kwankhao; Takagaki, Michiko; Cha–um, Suriyan

doi:10.1080/14620316.2020.1749532

Cited by 12 publications

(7 citation statements)

References 55 publications

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“…Soluble protein in leaves of strawberry under salt stress is decrease or are not changed [35]. As saltiness increases the resistance of natural responses in this plant, it gets better at considering strategies for the increased production of proline [36] and sugar solution [37]. However, the soluble sugar content of potato under NaCl stress was observed to be increased at the early stages and decreased at late stages [38].…”

Section: Discussionmentioning

confidence: 99%

Physiology and Gene Expression Analysis of Potato (Solanum tuberosum L.) in Salt Stress

Qin

et al. 2022

Plants

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The production of potato (Solanum tuberosum L.) faces a severe challenge due to the salinization of arable land worldwide. The cultivation of salt-tolerant potatoes is of great significance to ensure food security. In this study, two cultivars of ‘Longshu 5’ and ‘Qingshu 9’ were compared for physiological responses to salt stress, and then the salt tolerance of the two cultivars were assessed via principal component analysis. Furthermore, the Na+, K+, and Ca2+ flux of the cultivars under salt stress was recorded. Finally, the expression levels of ion transport-related genes and transcription factors in salt-tolerant cultivars were explored under NaCl stress. The results showed that the seven physiological indicators of salt tolerance were differed between the cultivars. Interestingly, soluble protein and sugar were early responsive to salt stress than proline in the salt-tolerance cultivar. Peroxidase and superoxide dismutase activity were significantly different in ‘Longshu 5’ under NaCl stress and without being significantly different in ‘Qingshu9’. In addition, the salt tolerance of ‘Longshu 5’ was more tolerant than ‘Qingshu 9’ based on principal component evaluation. Meanwhile, the strong efflux of Na+, the stability of K+, and the high absorption of Ca2+ in ‘Longshu 5’ indicated salt adaption mechanisms in the salt-tolerant potato. In addition, we found that ion transport-related genes and transcription factors, such as StSOS1, StNHX4, StAKT1, StNAC24, and StCYP707A, played a role in the salt tolerance of ‘Longshu 5’. In conclusion, the salt-tolerant potato can regulate physiological substances to adapt to salt stress, and ion transport related genes and transcription factors play a role in improving salt tolerance.

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Section: Discussionmentioning

confidence: 99%

Physiology and Gene Expression Analysis of Potato (Solanum tuberosum L.) in Salt Stress

Qin

et al. 2022

Plants

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“…, alanine, lactulose, ribose, and propanamine) associations with the Ca 2+ signaling pathway. Soluble sugars play an ameliorative role under salt stress by acting as osmolytes, promoting proline production and increasing antioxidant system activity to alleviate the negative effects of salt stress …”

Section: Resultsmentioning

confidence: 99%

“…Soluble sugars play an ameliorative role under salt stress by acting as osmolytes, promoting proline production and increasing antioxidant system activity to alleviate the negative effects of salt stress. 65 Amino acids play an essential role in salt stress resistance. 66,67 The contents of proline, arginine, and glycine were increased in the Mo/S-crystal treatment group compared with the control group (Figure 4d).…”

Section: Resultsmentioning

confidence: 99%

Facile Bioself-Assembled Crystals in Plants Promote Photosynthesis and Salt Stress Resistance

Xue

Hou

et al. 2021

ACS Nano

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Salty soil is a global problem that has adverse effects on plants. We demonstrate that bioself-assembled molybdenum–sulfur (Mo–S) crystals formed by the foliar application of MoCl5 and cysteine augment the photosynthesis of plants treated with 200 mM salt for 7 days by promoting Ca2+ signal transduction and free radical scavenging. Reductions in glutathione and phytochelatins were attributed to the biosynthesized Mo–S crystals. Plants embedded with the Mo–S crystals and exposed to salty soil exhibited carbon assimilation rates, photosynthesis rates (Fv/Fm), and electron transport rates (ETRs) that were increased by 40%, 63–173%, and 50–78%, respectively, compared with those of plants without Mo–S crystals. Increased compatible osmolyte levels and decreased levels of oxidative damage, stomatal conductance (0.63–0.42 mmol m2 s–1), and transpiration (22.9–15.3 mmol m2 s–1), free radical scavenging, and calcium-dependent protein kinase, and Ca2+ signaling pathway activation were evidenced by transcriptomics and metabolomics. The bioself-assembled crystals originating from ions provide a method for protecting plant development under adverse conditions.

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“…These sugars play an important role in acting as osmolytes and scavenging ROS to mitigate salt stress [58]. They can contribute up to 50% of the overall osmotic potential by accumulating compatible solutes [52] and are also essential for the preservation of chlorophyll pigments and the maintenance of optimal photosynthetic capabilities [69]. The concentration of leaf soluble sugars was increased by increasing the salinity level [64,66,70].…”

Section: Response Of Osmolytes Under Salt and Ebr Treatmentsmentioning

confidence: 99%

Enhanced Seedling Growth and Physiological Performances of Melia azedarach L. by Foliar Application of 24-Epibrassinolide under Salt Stress

Htet,

Li,

2024

Forests

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Salinity is a serious environmental problem following a worsening trend. This study investigates the role of 24-epibrassinolide(EBR) in regulating plant growth and physiological performances, particularly in alleviating the negative effects of salt stress. Melia azedarach L. seedlings from two seed sources, Sheyang (SY) and Xiashu (XS), were exposed to sea salt and treated with different concentrations of EBR within a 60-day period. The results demonstrate that appropriate EBR application improved the seedlings’ stress tolerance by promoting growth and physiological systems. In terms of the relative increment, it showed that a difference of 1.45% and 1.13% in the SY and XS groups was the positive effect of the highest EBR treatment concentration. As for diameter growth, the difference observed was 2.51% and 1.80% for the SY and XS groups, respectively. In all physiological measurements, including the content of photosynthetic pigments, water relations, membrane stability, osmolytes and antioxidant enzymes, significant changes generally observed between salt stress alone and the highest EBR treatment concentration. A better performance was observed in the SY seed source, which is of a coastal nature. These findings contribute to our understanding of Melia azedarach’s adaptation to changing environments and provide potential for further molecular studies as well as valuable insights for forestry, agricultural and ecological research.

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Calcium and soluble sugar enrichments and physiological adaptation to mild NaCl salt stress in sweet potato (Ipomoea batatas) genotypes

Cited by 12 publications

References 55 publications

Physiology and Gene Expression Analysis of Potato (Solanum tuberosum L.) in Salt Stress

Physiology and Gene Expression Analysis of Potato (Solanum tuberosum L.) in Salt Stress

Facile Bioself-Assembled Crystals in Plants Promote Photosynthesis and Salt Stress Resistance

Enhanced Seedling Growth and Physiological Performances of Melia azedarach L. by Foliar Application of 24-Epibrassinolide under Salt Stress

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