NtCOMT1 responsible for phytomelatonin biosynthesis confers drought tolerance in Nicotiana tabacum

Yao, Zhengping; Zhang, Xue; Liang, Yingchong; Zhang, Jiemei; Xu, Yi; Chen, Suiyun

doi:10.1016/j.phytochem.2022.113306

Cited by 12 publications

(7 citation statements)

References 51 publications

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“…Similarly, BnCOMT1/5/8 alleviated Al, Cd, and drought damage, but BnCOMT4/6 displayed a diverse role 87,88 . Upregulation of NtCOMT1 and CrCOMT were important for the response of tobacco and turfgrass to drought and salt stress 89–91 . Transgenic overexpression of SlCOMT1 in tomato led to a significant increase in tolerance to low phosphorus and Cd stress 92,93 .…”

Section: Melatonin Biosynthesismentioning

confidence: 99%

“…87,88 Upregulation of NtCOMT1 and CrCOMT were important for the response of tobacco and turfgrass to drought and salt stress. [89][90][91] Transgenic overexpression of SlCOMT1 in tomato led to a significant increase in tolerance to low phosphorus and Cd stress. 92,93 Although the role of COMT in Arabidopsis for anti-abiotic stress was not clear, the homologous overexpressing Arabidopsis mutant of SlCOMT (tomato), CrCOMT (cotton grass), and TaCOMT (wheat), was more resistant to cold, salt, and drought.…”

Section: Abiotic Stressmentioning

confidence: 99%

“…53,76 Similarly, crosstalk between antioxidant system and the upregulating drought-related genes (SnRk2, AREB1, LEA5, and WRKY6) promoted drought resistance of NtCOMT1 overexpressing tobacco. 89 Besides the above-mentioned mixed mechanism, plant metabolisms have great potential to involve in melatonin signaling pathway for antiabiotic stress. The increased expression of DEGs and DEMs in JA biosynthesis, lipoxygenase-related genes, and two metabolites (linoleic acid and lecithin) after treatment with melatonin could alleviate the effect of copper toxicity.…”

Section: Mechanism For Regulating Abiotic Stresses Tolerancementioning

confidence: 99%

“…SlSNAT interacted with HSP40/70 and increased ribulose bisphosphate carboxylase oxygenase (RuBisCO) resulted in improved thermotolerance of tomato 53,76 . Similarly, crosstalk between antioxidant system and the upregulating drought‐related genes ( SnRk2 , AREB1 , LEA5 , and WRKY6 ) promoted drought resistance of NtCOMT1 overexpressing tobacco 89 . Besides the above‐mentioned mixed mechanism, plant metabolisms have great potential to involve in melatonin signaling pathway for antiabiotic stress.…”

Section: Melatonin Biosynthesismentioning

confidence: 99%

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Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Gao

Chen

et al. 2023

Journal of Pineal Research

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The expansion of gene families during evolution could generate functional diversity among their members to regulate plant growth and development. Melatonin, a phylogenetically ancient molecule, is vital for many aspects of a plant's life. Understanding the functional diversity of the molecular players involved in melatonin biosynthesis, signaling, and metabolism will facilitate the regulation of plant phenotypes. However, the molecular mechanism of melatonin response signaling elements in regulating this network still has many challenges. Here, we provide an in‐depth analysis of the functional diversity and evolution of molecular components in melatonin signaling pathway. Genetic analysis of multiple mutants in plant species will shed light on the role of gene families in melatonin regulatory pathways. Phylogenetic analysis of these genes was performed, which will facilitate the identification of melatonin‐related genes for future study. Based on the abovementioned signal networks, the mechanism of these genes was summarized to provide reference for studying the regulatory mechanism of melatonin in plant phenotypes. We hope that this work will facilitate melatonin research in higher plants and finely tuned spatio‐temporal regulation of melatonin signaling.

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Section: Melatonin Biosynthesismentioning

confidence: 99%

Section: Abiotic Stressmentioning

confidence: 99%

Section: Mechanism For Regulating Abiotic Stresses Tolerancementioning

confidence: 99%

Section: Melatonin Biosynthesismentioning

confidence: 99%

See 2 more Smart Citations

Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Gao

Chen

et al. 2023

Journal of Pineal Research

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“…For example, studies in Arabidopsis thaliana have shown that the knockout of genes involved in melatonin biosynthesis leads to increased sensitivity to drought stress (Lee et al, 2015), highlighting the importance of melatonin in conferring drought tolerance. Similarly, overexpression of melatonin biosynthesis genes in rice and tobacco has enhanced their melatonin contents and drought tolerance capabilities (Lee & Back, 2017; Yao et al, 2022). However, little is known about the mechanisms regulating these genes in stressful conditions in monocot crops, especially wheat.…”

Section: Introductionmentioning

confidence: 99%

Unraveling the regulatory role of MYC2 on ASMT gene expression in wheat: Implications for melatonin biosynthesis and drought tolerance

Shamloo‐Dashtpagerdi,

Lindlöf,

Nouripour‐Sisakht

2023

Physiologia Plantarum

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Recognized for its multifaceted functions, melatonin is a hormone found in both animals and plants. In the plant kingdom, it plays diverse roles, regulating growth, development, and stress responses. Notably, melatonin demonstrates its significance by mitigating the effects of abiotic stresses like drought. However, understanding the precise regulatory mechanisms controlling melatonin biosynthesis genes, especially during monocots' response to stresses, requires further exploration. Seeking to understand the molecular basis of drought stress tolerance in wheat, we analyzed RNA‐Seq libraries of wheat exposed to drought stress using bioinformatics methods. In light of our findings, we identified that the Myelocytomatosis oncogenes 2 (MYC2) transcription factor is a hub gene upstream of a main melatonin biosynthesis gene, N‐acetylserotonin methyltransferase (ASMT), in the wheat drought response‐gene network. Promoter analysis of the ASMT gene suggested that it might be a target gene of MYC2. We conducted a set of molecular and physiochemical assays along with robust machine learning approaches to elevate those findings further. MYC2 and ASMT were co‐regulated under Jasmonate, drought, and a combination of them in the leaf tissues of wheat was detected. A meaningful correlation was observed among gene expression profiles, melatonin contents, photosynthetic activities, antioxidant enzyme activities, H2O2 levels, and plasma membrane damage. The results indicated an evident relationship between jasmonic acid and the melatonin biosynthesis pathway. Moreover, it seems that the MYC2‐ASMT module might contribute to wheat drought tolerance by regulating melatonin contents.

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Molecular Role of Melatonin in Regulating Abiotic Stress Adaptive Responses in Plants

Jia,

Liu,

Huang

et al. 2024

J Plant Growth Regul

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NtCOMT1 responsible for phytomelatonin biosynthesis confers drought tolerance in Nicotiana tabacum

Cited by 12 publications

References 51 publications

Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Unraveling the regulatory role of MYC2 on ASMT gene expression in wheat: Implications for melatonin biosynthesis and drought tolerance

Molecular Role of Melatonin in Regulating Abiotic Stress Adaptive Responses in Plants

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