首页|Strategies and prospects for melatonin to alleviate abiotic stress in horticultural plants

Strategies and prospects for melatonin to alleviate abiotic stress in horticultural plants

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Melatonin is a conserved pleiotropic molecule in animals and plants.Melatonin is involved in many development processes and stress responses;thus,exploring its function in plants,particularly in horticultural plants,has become a rapidly developing field.Many studies have revealed that phytomelatonin acts as a plant biostimulant and increase its tolerance to various abiotic stressors,including extreme temper-ature,drought,osmotic disturbance,heavy metals,and ultraviolet(UV).Melatonin appears to have roles in the scavenging of reactive oxygen species(ROS)and other free radicals,affecting the primary and secondary metabolism of plants,regulating the transcripts of stress-related enzymes and transcription factors,and crosstalk with other hormones under different environmental conditions.This pleiotropy makes phytomelatonin an attractive regulator to improve resistance to abiotic stress in plants.The recent discovery of the potential phytomelatonin receptor CAND2/PMTR1 and the proposition of putative models related to the phytomelatonin signaling pathways makes phytomelatonin a new plant hormone.Based on relevant studies from our laboratory,this review summarizes the phytomelatonin biosynthetic and metabolic pathways in plants and the latest research progress on phytomelatonin in abiotic stress of horticultural plants.This study will provide a reference for elucidating the regulatory mechanism of phytomelatonin affecting the resistance to abiotic stress in plants.

Abiotic stressBiostimulantHorticultural plantsPhytomelatonin

Xiaoyun Wang、Meng Cao、Hongxin Li、Ying Liu、Shuangxi Fan、Na Zhang、Yangdong Guo

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College of Horticulture,China Agricultural University,Beijing,100193,China

College of Plant Science and Technology,Beijing University of Agriculture,Beijing,102206,China

Beijing Bei Nong Enterprise Management Co.,Ltd.,Beijing,102206,China

Sanya Institute of China Agricultural University,Sanya,Hainan,572000,China

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国家自然科学基金国家自然科学基金Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology CityConstruction of Beijing Science and Technology Innovation and Service Capacity in Top SubjectsBeijing Agriculture Innovation Consortium

3217259832172599320LH013CEFF-PXM2019-014207-000032BAIC01-2024

2024

10.1016/j.hpj.2023.03.011

园艺学报(英文版)

园艺学报(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.10(3)
  • 187