2020
DOI: 10.1093/pcp/pcaa018
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SlSNAT Interacts with HSP40, a Molecular Chaperone, to Regulate Melatonin Biosynthesis and Promote Thermotolerance in Tomato

Abstract: The SNAT enzyme participates in the biosynthesis of melatonin, which is reported to regulate thermotolerance in many plants. However, the mechanistic basis of this regulation remains unclear. In this study, we identified the SlSNAT gene, which is responsible for melatonin biosynthesis in tomato. SlSNAT expression levels were 3- and 5-fold higher in SlSNAT overexpression lines OX-2 and OX-6, respectively. The melatonin levels were 3- and 4-fold higher than those in wild type. The melatonin levels decreased by 5… Show more

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Cited by 70 publications
(47 citation statements)
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“…Suppression of SNAT1 led to a decrease in melatonin, followed by enhanced pathogen susceptibility [6], salinity hypersensitivity [8], and susceptibility to high-light stress [7]. SNAT1 OE increased melatonin levels, resulting in cadmium tolerance [51], delayed senescence [14], lateral root promotion [52], salt tolerance [53], and thermotolerance [16]. In addition to the genetic evidence, exogenous melatonin treatment conferred stress tolerance to a wide range of biotic and abiotic stressors, including viral attack [8,54,55].…”
Section: Melatonin and Photosynthesismentioning
confidence: 98%
See 1 more Smart Citation
“…Suppression of SNAT1 led to a decrease in melatonin, followed by enhanced pathogen susceptibility [6], salinity hypersensitivity [8], and susceptibility to high-light stress [7]. SNAT1 OE increased melatonin levels, resulting in cadmium tolerance [51], delayed senescence [14], lateral root promotion [52], salt tolerance [53], and thermotolerance [16]. In addition to the genetic evidence, exogenous melatonin treatment conferred stress tolerance to a wide range of biotic and abiotic stressors, including viral attack [8,54,55].…”
Section: Melatonin and Photosynthesismentioning
confidence: 98%
“…Overall, SNAT1 plays a pivotal role in melatonin biosynthesis in many plant species, including rice. Its overexpression (OE) leads to increased melatonin production, whereas its suppression results in decreased melatonin production and the corresponding physiological and biochemical phenotypes described above [13][14][15][16].…”
Section: Introductionmentioning
confidence: 99%
“…Histochemical staining by diaminobenzidine (DAB) and 2 0 ,7 0dichlorodihydrofluorescein diacetate (H 2 DCFDA) were used to analyse the accumulation of H 2 O 2 (X. Wang et al, 2020). For DAB staining, 15 fresh leaves from three plants were sampled and immersed in 1 mg/ml DAB solution (Sigma-Aldrich, D5905), after 4 hr of incubation, leaves were bleached in a bleaching solution.…”
Section: Analysis Of Electrolyte Leakage Malondialdehyde and Ros Amentioning
confidence: 99%
“…Chaperone proteins are a class of proteins related to protein degradation and folding that act as molecular chaperones to improve resistance against environmental stress (Wang et al., 2020; Wei, Liu, Hu, Yan, & Shi, 2020). Our results showed that the expression of chaperone DnaJ 16 significantly increased in response to high temperature stress.…”
Section: Discussionmentioning
confidence: 99%