Interference of skeleton photoperiod in circadian clock and photosynthetic efficiency of tea plant:in-depth analysis of mathematical model

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外文摘要：The circadian system of plants is a complex physiological mechanism,a biological process in which plants can adjust themselves according to the day and night cycle.To understand the effects of different photoperiods on the biological clock of tea plants,we analyzed the expression levels of core clock genes(CCA1,PRR9,TOC1,ELF4)and photosynthesis-related genes(Lhcb,RbcS,atpA)under normal light(light/dark=12 h/12 h,12L12D)and took the cost function defined by cycle and phase errors as the basic model parameter.In the continuous light environment(24 h light,24L),the peak activity and cycle of key genes that control the biological clock and photosynthesis were delayed by 1-2 h.Under a skeleton photoperiod(6L6D,3L3D),the expression profiles of clock genes and photosynthesis-related genes in tea plants were changed and stomatal opening showed a circadian rhythm.These observations suggest that a skeleton photoperiod may have an effect on the circadian rhythm,photosynthetic efficiency and stomatal regulation of tea plants.Our study and model analyzed the components of circadian rhythms under different photoperiodic pathways,and also revealed the underlying mechanisms of circadian regulation of photosynthesis in tea plants.

作者：

Zhi-Hang Hu、Ting Huang、Nan Zhang、Chen Chen、Kai-Xin Yang、Meng-Zhen Sun、Ni Yang、Yi Chen、Jian-Ping Tao、Hui Liu、Xing-Hui Li、Xuan Chen、Xiong You、Ai-Sheng Xiong、Jing Zhuang

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作者单位：

Tea Science Research Institute,College of Horticulture,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China

State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China

College of Sciences,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China

出版年：

2024

DOI：

10.1093/hr/uhae226

园艺研究(英文)

CSTPCD

ISSN：

年,卷(期)：2024.11(10)