Melatonin Improves Heat Tolerance in Kiwifruit Seedlings through Promoting Antioxidant Enzymatic Activity and Glutathione S-Transferase Transcription

Liang, Dong; Gao, Fan; Ni, Zhiyou; Lin, Lijin; Deng, Qunxian; Tang, Yi; Wang, Xun; Luo, Xian

doi:10.3390/molecules23030584

Cited by 109 publications

(72 citation statements)

References 63 publications

(61 reference statements)

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“…antioxidant enzymes such as SOD, CAT, POD, and APX. Differences in antioxidant enzyme responses to melatonin treatment in our results compared with the results of Liang et al (2018) could be due to the different species used for the studies and the differences in plant maturity (mature plant vs. seedlings). Treatments that were associated with improved antioxidant content also influenced fatty acid content in leaf tissues.…”

Section: Discussioncontrasting

confidence: 60%

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Improvement in Heat Tolerance of Creeping Bentgrass with Melatonin, Rutin, and Silicon

Merewitz¹,

Li²

2019

J. Amer. Soc. Hort. Sci.

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Naturally derived products that may enhance the functionality of fertilizers or other agricultural inputs are needed to reduce inputs associated with stress damage and increase the sustainability of turfgrass management. Damage to high-value creeping bentgrass (Agrostis stolonifera) turf areas caused by heat stress is a widespread problem. This study aimed to evaluate multiple, diverse treatments that may illicit antioxidant responses in plants, melatonin, rutin, and Si, when applied as foliar pretreatments to heat stress. Creeping bentgrass plants were grown in growth chambers at optimal (23 °C) or heat stress conditions (35 °C). Turfgrass quality, chlorophyll content, leaf electrolyte leakage, photochemical efficiency, lipid peroxidation, antioxidant enzyme activity, and fatty acid content were measured to determine the effects of foliar treatments on heat stress responses. Melatonin, Si, and rutin were all found to improve some or all of the physiological parameters measured in the study, but only melatonin and Si reduced lipid peroxidation, increased antioxidant enzyme activity, and altered fatty acid contents. Melatonin- and Si-treated plants had greater superoxide dismutase and peroxidase activity and increased the content of the unsaturated fatty acid, linoleic acid, in creeping bentgrass leaves during heat stress compared with controls. Rutin improved turf quality and reduced electrolyte leakage during heat stress, but the mechanism associated with these changes is unclear because no changes were found in antioxidant enzyme activities or fatty acids. Melatonin and Si treatment promoted antioxidant enzyme activity and linoleic acid content of leaves, which have been associated with the improved heat tolerance of creeping bentgrass plants.

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Section: Discussioncontrasting

confidence: 60%

“…No major differences were found for APX and CAT in response to melatonin treatment and heat stress. Liang et al (2018) found reduced H 2 O 2 content in melatonin treated kiwifruit (Actinidia deliciosa) seedlings and greater activity of many of the Fig. 2.…”

Section: Discussionmentioning

confidence: 92%

Improvement in Heat Tolerance of Creeping Bentgrass with Melatonin, Rutin, and Silicon

Merewitz¹,

Li²

2019

J. Amer. Soc. Hort. Sci.

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“…At the same time, MT treatment soluble protein content in kiwifruit were slightly higher than CK, Under adversity stress or aging process, the accumulation of free radicals, reactive oxygen species, lipid free radicals induced membrane lipid peroxide, eventually lead to cell damage or death. MDA is the final product of membrane lipid peroxidation, through the determination of its content may know the extent of the membrane lipid oxidative damage, so as to determine antioxidant capacity of plant (Liang et al, 2018). The results of this experiment showed that the content of MDA in kiwifruit decreased significantly with the treatment of melatonin, which improved the antioxidant ability of fruit to a certain extent.…”

Section: Discussionmentioning

confidence: 80%

Melatonin Application Increases Accumulation of Phenol substances in Kiwifruit during Storage

Wang

Xie

2019

Emir J Food Agric

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To investigate the effect of melatonin on the fruit quality during storage, fruits of ‘Jingshi No 1’, a new yellow-fleshed kiwifruit variety, were used as materials by soaking in 0.1 mmol·L-1 melatonin (MT) solution. The results showed that MT treatment significantly delayed the decline of fruit hardness, reduced the loss of soluble protein, and significantly lowered the accumulation of malondialdehyde when compared with the control. Moreover, MT application improved content of antioxandants, such as total phenolic, total flavonoid and flavanol content, and the antioxidant capacity measured by ABTS and FRAP. These results indicate that MT application can delay fruit softening and improve antioxidant ability by enhancing the accumulation of phenolic substances during storage.

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“…Wild type started autotrophic growth at this timepoint already, with a high activity of peroxidase (Csa4G285740) and chlorophyll A-B binding protein (Csa3G664560), while albino mutant still needed to utilize the storage because it is still not able to photosynthesize resulted from a lack of functional chloroplast. Glutathione S-transferase have been reported mainly function in response to biotic and abiotic stresses, such as oxidative stress (55), high/low temperature stress (56,57) and different pathogen invasion (58)(59)(60). As well, a high concentration of glutathione S-transferase resulted in decreased chlorophyll content (61).…”

Section: Discussionmentioning

confidence: 99%

A novel cucumber albino mutant caused by chloroplast development deficiency

Yan

Liu

Cao

et al. 2020

Preprint

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Background Photosynthesis is a fundamental process for plant growth and development dependent on a precise network, including formation of chloroplast and chlorophyll synthesis. Chloroplast development deficiency could lead to albinism in higher plant. Results Here, we report a cucumber albino recessive mutant that processed white cotyledons under light condition and is unable to produce first true leaf. Meanwhile, albino mutant could grow out creamy green cotyledons under dark condition but died after exposing to light. Using fluorescence microscopy and transmission electron microscope (TEM), impaired chloroplasts were observed. We identified 7 and 3 differentially expressed genes (DEG) involved in Chlorophyll metabolism and Methylerythritol 4-phosphate (MEP) pathway through transcriptome analysis, respectively. We also examined the reported homologous genes for albino mutants from other plants. Two of 12 genes, TOC159 and DXS1, were up-regulated in cucumber albino mutants as well. The reliability of RNA sequencing results were further confirmed by real-time quantitative PCR (qPCR). Conclusions Taken together, we elaborate the differences between albino mutant and normal seedlings from a single cucumber progeny. This mutant is a new material to study protoplast development.

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Melatonin Improves Heat Tolerance in Kiwifruit Seedlings through Promoting Antioxidant Enzymatic Activity and Glutathione S-Transferase Transcription

Cited by 109 publications

References 63 publications

Improvement in Heat Tolerance of Creeping Bentgrass with Melatonin, Rutin, and Silicon

Improvement in Heat Tolerance of Creeping Bentgrass with Melatonin, Rutin, and Silicon

Melatonin Application Increases Accumulation of Phenol substances in Kiwifruit during Storage

A novel cucumber albino mutant caused by chloroplast development deficiency

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