Physiological and proteomic analyses of Malus crabapples exposed to long-term warming and short-term heat shock treatments reveal the response characteristics of photosynthetic apparatus

Wang, Tao; Ying-jie, MA; Zhou, Yanwei; Li, Lingyu; Xu, Donghuan; Luo, Siqian; Zhuang, Weibing; Zhang, Wangxiang; Xie, Yinfeng

doi:10.1016/j.scienta.2022.111565

Cited by 3 publications

(1 citation statement)

References 69 publications

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“…This suggested that the absorption and conversion of light energy in Taxus were enhanced in the summer environment. However, the decrease in Sm and N indicated a decreased pool size of electron carriers, which potentially affected the reduction events of Q A [ 50 ]. Moreover, the increased Vi further implied diminished electrons transport to Q B , which ultimately affected the reduction at the PSI acceptor side (φR 0 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of Seasonal Changes on Chlorophyll Fluorescence and Physiological Characteristics in the Two Taxus Species

Wang

Qin

et al. 2023

Plants

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Taxus is a rare and endangered woody plant worldwide with important economic and ecological values. However, the weak environmental adaptability of Taxus species, in particular the unstable photosynthetic activity in different seasons, always affects its normal growth and development and limits its conservation and exploitation. To improve the survival of Taxus trees in cultivated areas, the seasonal dynamics of chlorophyll fluorescence (CF) and key physiological parameters were comprehensively investigated in T. media and T. mairei. The results demonstrated that the photosynthetic activity of both Taxus species was sensitive to local summer and winter environmental conditions, with the heterogeneity of fluorescence signatures intuitively presented on the needle surface by CF-Imaging detection, while images of maximum quantum efficiency of PSII photochemistry (Fv/Fm) demonstrated values below 0.7 in the blue–green sectors in winter. The distribution of light energy was regulated by the photosynthetic apparatus in both Taxus species to maintain a stable actual quantum yield of PSII photochemistry (φPSII), which was around 0.4–0.5. Based on a redundancy discriminant analysis, the interpretation rate of light intensity and air temperature ranked as the top two in both Taxus species, which were considered the main environmental factors affecting the photosynthetic performance of Taxus by disturbing the electron transport chain. In the winter, T. mairei exhibited weaker electron transport activity than T. media, thus caused lower photochemistry and more severe photosynthetic damages. Interestingly, both Taxus species demonstrated consistent response patterns, including diverse energy dissipation strategies and enhancement of osmoregulatory substances and antioxidative activities, thus maintaining stable photosynthetic functions in response to environmental changes.

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Section: Discussionmentioning

confidence: 99%

Effects of Seasonal Changes on Chlorophyll Fluorescence and Physiological Characteristics in the Two Taxus Species

Wang

Qin

et al. 2023

Plants

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The responses and tolerance of photosynthetic system in Chlorella vulgaris to the pharmaceutical pollutant carbamazepine

Chang,

Wei,

Tian

et al. 2024

Chemosphere

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Regulation of Plant Growth and Development by Melatonin

Shi,

Zhao,

Zhang

et al. 2024

Life

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Melatonin is a naturally occurring chemical with pleiotropic effects in various species. In plants, melatonin is associated with a variety of plant physiological processes, including plant growth and development, stress responses, etc. Thus, melatonin may hold promise for improving crop yields and agricultural sustainability. This review describes the biosynthetic mode of melatonin and its properties and summarizes its functions in growth, development, and reproduction. In addition, the role of melatonin in plants facing various stressful environments is elaborated upon, and its relationship with other phytohormones is summarized. Through this review, we recognize the problems and challenges facing melatonin research and propose some feasible solutions.

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Physiological and proteomic analyses of Malus crabapples exposed to long-term warming and short-term heat shock treatments reveal the response characteristics of photosynthetic apparatus

Cited by 3 publications

References 69 publications

Effects of Seasonal Changes on Chlorophyll Fluorescence and Physiological Characteristics in the Two Taxus Species

Effects of Seasonal Changes on Chlorophyll Fluorescence and Physiological Characteristics in the Two Taxus Species

The responses and tolerance of photosynthetic system in Chlorella vulgaris to the pharmaceutical pollutant carbamazepine

Regulation of Plant Growth and Development by Melatonin

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