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Photosynthesis and Stress Signaling

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (20 January 2026) | Viewed by 1774

Editor


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Guest Editor
State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
Interests: stress signaling; chloroplast; reactive oxygen species; singlet oxygen; oxidative stress; phosphate deficiency; ethylene; jasmonate acid
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Special Issue Information

Dear Colleagues,

Photosynthesis performed in the chloroplasts of green plants is inarguably one of the most important biological processes on earth. However, land plants constantly suffer from multiple unfavorable or even adverse environmental conditions (e.g., intense light, drought, low/high temperature, nutrient limitation, pathogen infection) that eventually disturb photosynthesis. Meanwhile, chloroplasts sense environmental fluctuations and transmit a signal to the nucleus via a process known as retrograde signaling to cope with unfavorable conditions. This Special Issue focuses on elucidating the underlying mechanism that explains how environmental stress factors affect photosynthesis and the role of chloroplasts in sensing stress and transmitting stress signals. We welcome all types of submissions related to photosynthesis.

Prof. Dr. Liangsheng Wang
Guest Editor

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Keywords

  • photosynthesis
  • chloroplasts
  • stress
  • signaling

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Published Papers (1 paper)

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Review

27 pages, 1424 KB  
Review
Singlet Oxygen Generation and Signaling in Higher Plants
by Huan Zhao, Xinyue Wang and Liangsheng Wang
Int. J. Mol. Sci. 2026, 27(3), 1462; https://doi.org/10.3390/ijms27031462 - 1 Feb 2026
Cited by 2 | Viewed by 1329
Abstract
Singlet oxygen (1O2), the excitation stage of the ground-state molecular oxygen, is a fundamental reactive oxygen species (ROS) with important functions in plant growth, development, and stress responses. In plant cells, 1O2 is mainly generated in the [...] Read more.
Singlet oxygen (1O2), the excitation stage of the ground-state molecular oxygen, is a fundamental reactive oxygen species (ROS) with important functions in plant growth, development, and stress responses. In plant cells, 1O2 is mainly generated in the chloroplast due to photosensitizing activity of tetrapyrroles. Moreover, 1O2 can be generated in non-photosynthetic tissues when plants suffer environmental stresses. Although 1O2 was initially considered as a cytotoxin—causing merely photooxidative damages, more recent work suggests that 1O2 also acts as a signal that either triggers a programmed cell death response or promotes acclimation. The 1O2 signaling pathway is distinct and operates independently of other ROS signaling cascades. In Arabidopsis, EXECUTER1 (EX1) protein has been identified as a crucial signaling component that perceives and relays 1O2 signals to the nucleus, thereby initiating extensive transcriptional reprogramming. Additionally, oxidative products of carotenoids, such as β-cyclocitral, are also recognized as 1O2-derived signaling molecules. Through specific chloroplast-to-nucleus signaling and cross talk with hormone signaling networks—including jasmonic acid (JA) and salicylic acid (SA)—1O2 helps finely coordinate plant growth, defense responses, and cell fate decisions under fluctuating environmental conditions. This review aims to summarize current knowledge on 1O2 generation and signaling, 1O2-induced chloroplast changes under diverse stress conditions, and cross talk between 1O2 and phytohormone signaling. Full article
(This article belongs to the Special Issue Photosynthesis and Stress Signaling)
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