Effects of Water Stress on Sorbitol Content in Leaves and Roots, Anatomical Changes in Cell Nuclei, and Starch Accumulation in Leaves of Young Peach Trees

Cui, Shi-mao; Sadayoshi, Kimi; Ogawa, Yohei; Nii, Naosuke

doi:10.2503/jjshs.73.25

Cited by 15 publications

(4 citation statements)

References 8 publications

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“…P. Persica plants demonstrated variations in the composition of soluble sugar when subjected to different spells of drought (mild and severe) stress ( Table 2). The reduction in glucose, fructose and sucrose concentration and an increased accumulation of sorbitol level accounts a common response of Rosaceae family in response to drought stress (Rieger et al 2003;Cui et al 2004;Jiménez et al 2013). It has been well documented that instead of sucrose, sorbitol is preferentially synthesized even at low photosynthesis process in drought-affected peach leaves (Escobar-Gutierrez et al 1998).…”

Section: Discussionmentioning

confidence: 99%

Drought stress revealed physiological, biochemical and gene-expressional variations in ‘Yoshihime’ peach (Prunus Persica L) cultivar

Haider

Kurjogi

Khalil-Ur-Rehman

et al. 2018

Journal of Plant Interactions

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It is indispensable to comprehend the mechanism that regulates plant responses to drought conditions to intensify the water use efficiency of stone fruits. The physiological, biochemical and molecular responses of drought-treated peach leaves were investigated. Results revealed that drought-treated plants manifested a significant attenuation in water potential as compared to control plants. Furthermore, sorbitol and proline contents were accumulated contrary to glucose, fructose, and sucrose that were dwindled significantly throughout the drought period. Similarly, the activities of antioxidant enzymes and expression pattern of related genes were hoisted to counter the lipid peroxidation in drought-treated plants. Moreover, reduced stomatal conductance has repressed the photosynthesis process and linked genes during drought stress. The expression level of regulatory genes (dehydration-responsive element-bindings and WRKYs) exhibited up-regulation in the drought-treated group. Overall, this study asserts that 'Yoshihime' peach cultivar possesses unique physiological, biochemical, and molecular responses under different spells of drought stress.

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Section: Discussionmentioning

confidence: 99%

Drought stress revealed physiological, biochemical and gene-expressional variations in ‘Yoshihime’ peach (Prunus Persica L) cultivar

Haider

Kurjogi

Khalil-Ur-Rehman

et al. 2018

Journal of Plant Interactions

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“…Sorbitol serves as the major polyol, and is also a unique translocated form of carbon in plants. It has been shown that drought stress improved the accumulation of sorbitol which contributed to drought tolerance of plants [ 6 , 60 , 61 ]. Li et al [ 61 ] reported that the overexpression of two sorbitol transporter genes in Arabidopsis induced the increase of sorbitol content associated with acquiring strong drought tolerance.…”

Section: Discussionmentioning

confidence: 99%

Spermine Alleviates Drought Stress in White Clover with Different Resistance by Influencing Carbohydrate Metabolism and Dehydrins Synthesis

Wen

Peng

et al. 2015

PLoS ONE

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The objective of this research was to analyse whether ameliorating drought stress through exogenously applied spermine (Spm) was related to carbohydrate metabolism, dehydrins accumulation and the transcription of genes encoding dehydrins in two white clovers (drought-susceptible cv. ‘Ladino’ and drought-resistant cv. ‘Haifa’) under controlled drying conditions for 10 days. The results show that the application of Spm effectively alleviates negative effects caused by drought stress in both cultivars. Exogenous Spm led to accumulation of more water-soluble carbohydrates (WSC), sucrose, fructose and sorbitol in both cultivars under drought stress, and also significantly elevated glucose content in leaves of drought-resistant cv. ‘Haifa’, but had no effect on drought-susceptible cv. ‘Ladino’. Accordingly, the key enzyme activities of sucrose and sorbitol metabolism changed along with the application of Spm under drought stress. Spm induced a significant increase in sucrose phosphate synthase (SPS) or sorbitol dehydrogenase (SDH) activity, but decrease in sucrose synthetase (SS) activity when two cultivars were subjected to drought. In addition, the improved accumulation of dehydrins induced by exogenous Spm coincided with three genes expression which was responsible for dehydrins synthesis. But Spm-induced transcript level of dehydrin genes increased earlier in cv. ‘Ladino’ than that in cv. ‘Haifa’. Thus, these results suggest that ameliorating drought stress through exogenously applied Spm may be associated with increased carbohydrate accumulation and dehydrins synthesis. There are differences between drought-susceptible and -resistant white clover cultivars related to Spm regulation of WSC metabolism and dehydrins expression.

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“…Low temperature and drought stress also led to an increased concentration of sorbitol in peach leaves (Deguchi et al 2002;Cui et al 2004).…”

Section: Introductionmentioning

confidence: 97%

Characterization of Three Sorbitol Transporter Genes in Micropropagated Apple Plants Grown under Drought Stress

Lei

Zhao

et al. 2011

Plant Mol Biol Rep

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Sorbitol, a major end-product of photosynthesis in many species of the Rosaceae family, accumulates in response to abiotic stressors. However, the relationship that arises between the expression of sorbitol transporters and sorbitol accumulation under abiotic stress remains unclear. In this study, micropropagated 'Fuji' apple plants (Malus domestica Borkh. 'Fuji') were exposed to two varying degrees of osmotic stress and compared relative to an unstressed control. The osmotic stress was generated by adding PEG 6000 into full-strength Hoagland solution and adjusted the osmotic potential to either −0.75 MPa (mild drought stress [MIS]) or −1.5 MPa (severe drought stress [SES]). Analysis of sorbitol levels via high performance liquid chromatography (HPLC) showed that the sorbitol concentration was elevated in roots, phloem tissues and leaves in both the MIS and SES treatments compared to controls for the entire duration of the experiment. Three cDNA sequences, encoding sorbitol transporters (MdSOT3, MdSOT4 and MdSOT5), were isolated from leaves. Realtime quantitative PCR (RT-qPCR) data suggests that the expression levels of MdSOT3 and MdSOT5 were higher under MIS and SES in roots, phloem tissues and leaves compared to unstressed controls. The average mRNA levels of MdSOT4 in phloem tissues declined under both drought treatments (with the exception being at 2 h of SES). In roots and leaves under SES, mRNA production was increased. These results indicate that the up-regulation of MdSOT3 and MdSOT5 expression is consistent with the accumulation of sorbitol under conditions of osmotic stress in apple plants. They enhanced drought tolerance in vegetative tissues. Increased MdSOT4 mRNA enhanced drought tolerance under SES.

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Effects of Water Stress on Sorbitol Content in Leaves and Roots, Anatomical Changes in Cell Nuclei, and Starch Accumulation in Leaves of Young Peach Trees

Cited by 15 publications

References 8 publications

Drought stress revealed physiological, biochemical and gene-expressional variations in ‘Yoshihime’ peach (Prunus Persica L) cultivar

Drought stress revealed physiological, biochemical and gene-expressional variations in ‘Yoshihime’ peach (Prunus Persica L) cultivar

Spermine Alleviates Drought Stress in White Clover with Different Resistance by Influencing Carbohydrate Metabolism and Dehydrins Synthesis

Characterization of Three Sorbitol Transporter Genes in Micropropagated Apple Plants Grown under Drought Stress

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