Transcriptome Analysis Reveals the Mechanism by Which Exogenous Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale (Brassica oleracea var. alboglabra)

Di, Hongmei; Zhang, Chenlu; Zhou, Aolian; Huang, Huanhuan; Tang, Yi; Li, Huanxiu; Huang, Zhi; Zhang, Fen; Sun, Bo

doi:10.3390/ijms25042250

Cited by 3 publications

(1 citation statement)

References 53 publications

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“…Transcriptome sequencing is an effective method to study the plant leaf senescence process [23]. Studies have shown that leaf senescence induces changes in the transcript levels of genes through specific pathways' internal and environmental senescence signals.…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome-Based Analysis of the Regulation of Leaf Senescence in the Upper and Middle Canopy of Different Soybean Cultivars

Wang,

Zhang,

et al. 2024

Agronomy

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Premature leaf failure is one of the major factors contributing to crop yield reduction. High-yielding soybean cultivars exhibit a longer leaf lifespan during the reproductive period, promoting higher yields. In this experiment, physiological indexes and transcriptomics analysis were carried out on leaves of different canopy parts of two soybean cultivars with different senescence sensitivities of LD32 and SND28 as test materials. The results showed that the leaf senescence rates of the two soybean cultivars, tested at the grain-filling stage, were significantly different, and the senescence rates of the upper and middle canopy leaves of LD32 were significantly lower than those of SND28. In comparison to SND28, LD32 exhibited slower decreases in chlorophyll, net photosynthetic rate, and SPAD values in the upper and middle canopy leaves. The differentially expressed genes for senescence of upper and middle canopy leaves of both cultivars were enriched in four pathways: the photosynthesis pathway, the photosynthesis–antenna protein pathway, the MAPK signaling pathway–plant hormone signal transduction pathway, and the plant hormone signal transduction pathway. The differential expression of 20 genes (Ribose-5-phosphate isomerase, fructose-1,6-bisphosphatase, etc.) in the “carbon fixation in photosynthetic organisms” pathway of LD32 may be involved in the regulation of reducing the rate of leaf senescence in the middle of the canopy at the grain-filling stage of LD32. Ribose-5-phosphate isomerase and fructose-1,6-bisphosphatase in LD32 may reduce the rate of leaf senescence in the middle of the canopy during seed filling.

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Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome-Based Analysis of the Regulation of Leaf Senescence in the Upper and Middle Canopy of Different Soybean Cultivars

Wang,

Zhang,

et al. 2024

Agronomy

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Exploration of mechanism underlying the lipid alterations in the yellowing leaves of ‘HAES344’ macadamia

Yang,

Li,

Xiao

et al. 2024

Scientia Horticulturae

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Phytomelatonin: From Intracellular Signaling to Global Horticulture Market

Aghdam,

Arnao

2024

Journal of Pineal Research

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Melatonin (N‐acetyl‐5‐methoxytryptamine), a well‐known mammalian hormone, has been having a great relevance in the Plant World in recent years. Many of its physiological actions in plants are leading to possible features of agronomic interest, especially those related to improvements in tolerance to stressors and in the postharvest life of fruits and vegetables. Thus, through the exogenous application of melatonin or by modifying the endogenous biosynthesis of phytomelatonin, some change can be made in the functional levels of melatonin in tissues and their responses. Also, acting in the respective phytomelatonin biosynthesis enzymes, regulating the expression of tryptophan decarboxylase (TDC), tryptamine 5‐hydroxylase (T5H), serotonin N‐acetyltransferase (SNAT), N‐acetylserotonin O‐methyltransferase (ASMT), and caffeic acid O‐methyltransferase (COMT), and recently the possible action of deacetylases on some intermediates offers promising opportunities for improving fruits and vegetables in postharvest and its marketability. Other regulators/effectors such as different transcription factors, protein kinases, phosphatases, miRNAs, protein–protein interactions, and some gasotransmitters such as nitric oxide or hydrogen sulfide were also considered in an exhaustive vision. Other interesting aspects such as the role of phytomelatonin in autophagic responses, the posttranslational reprogramming by protein‐phosphorylation, ubiquitylation, SUMOylation, PARylation, persulfidation, and nitrosylation described in the phytomelatonin‐mediated responses were also discussed, including the relationship of phytomelatonin and several plant hormones, for chilling injury and fungal decay alleviating. The current data about the phytomelatonin receptor in plants (CAND2/PMTR1), the effect of UV‐B light and cold storage on the postharvest damage are presented and discussed. All this on the focus of a possible new action in the preservation of the quality of fruits and vegetables.

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Transcriptome Analysis Reveals the Mechanism by Which Exogenous Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale (Brassica oleracea var. alboglabra)

Cited by 3 publications

References 53 publications

Comparative Transcriptome-Based Analysis of the Regulation of Leaf Senescence in the Upper and Middle Canopy of Different Soybean Cultivars

Comparative Transcriptome-Based Analysis of the Regulation of Leaf Senescence in the Upper and Middle Canopy of Different Soybean Cultivars

Exploration of mechanism underlying the lipid alterations in the yellowing leaves of ‘HAES344’ macadamia

Phytomelatonin: From Intracellular Signaling to Global Horticulture Market

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