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Plants Redox Biology

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: 30 August 2025 | Viewed by 779

Special Issue Editor


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Guest Editor
Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
Interests: tea plants; flavonoid; stress physiology; plant hormones; secondary metabolism
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Special Issue Information

Dear Colleagues,

In recent years, the research of plant redox biology has expanded to all aspects of plant science. As an evolutionary consequence, plants have to maintain an optimal cellular and subcellular redox poise to continue normal metabolic activities, especially under certain stresses. For example, plants produce significant amounts of reactive oxygen species (ROS) as a result of photosynthetic electron transport and metabolism. In addition to the so-called deleterious effects of ROS, vital signaling roles of ROS in plant growth, development and stress responses have recently emerged. Notably, the main antioxidants, including glutathione, ascorbate, and others, are important plant redox components. Accumulating evidence points to the fact that redox signaling interfaces directly with the plant hormone network in the synergistic control of development and its modulation in response to environmental stresses. Furthermore, it is commonly accepted that ROS can cause post-translational modifications of proteins through oxidoreduction, indicating the influence of ROS beyond transcription and translation processes. Therefore, it is important to understand better the redox biology of plants with the aids of advanced genomics, transcriptomics, proteomics and metabolomics approaches towards stress resilience.

This Special Issue aims to collect research articles and review papers on biochemical and physiological aspects of thiol redox regulation, reactive oxygen/nitrogen species, and antioxidant metabolism in the context of plant growth, development, environmental acclimation, and stress responses; papers describing recent developments in the pervasive roles of redox signaling in plant development, integrating metabolism, and plant–environment interactions are especially welcome. 

Prof. Dr. Xin Li
Guest Editor

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Keywords

  • plant–environment interaction
  • stress physiology
  • plant redox signaling
  • plant hormones
  • plant–pathogen interaction
  • reactive oxygen species (ROS)
  • reactive nitrogen species (RNS)
  • ascorbate
  • flavonoid
  • glutathione

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Published Papers (1 paper)

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Research

16 pages, 5369 KiB  
Article
Genome-Wide Identification and Expression Analysis of Phytosulfokine Peptide Hormone Genes in Camellia sinensis
by Fengshui Yang, Lan Zhang, Qiuying Lu, Qianying Wang, Yanjun Zhou, Qiuhong Wang, Liping Zhang, Kai Shi, Shibei Ge and Xin Li
Int. J. Mol. Sci. 2025, 26(6), 2418; https://doi.org/10.3390/ijms26062418 - 7 Mar 2025
Viewed by 523
Abstract
Phytosulfokine (PSK) is a tyrosine-sulfated pentapeptide found throughout the plant kingdom, playing key roles in plant growth, development, and responses to biotic and abiotic stresses. However, there is still a lack of a comprehensive analysis of the CsPSK gene family in Camellia sinensis [...] Read more.
Phytosulfokine (PSK) is a tyrosine-sulfated pentapeptide found throughout the plant kingdom, playing key roles in plant growth, development, and responses to biotic and abiotic stresses. However, there is still a lack of a comprehensive analysis of the CsPSK gene family in Camellia sinensis. In this study, we conducted a genome-wide identification and characterized 14 CsPSK genes in tea plants, which are unevenly distributed across seven chromosomes. CsPSK genes encode proteins ranging from 75 to 124 amino acids in length, all belonging to the PSK-α type and containing conserved PSK domains. A synteny analysis revealed that the expansion of the CsPSK gene family is primarily attributed to whole-genome duplication, with homology to Arabidopsis thaliana PSK genes. A promoter region analysis identified cis-regulatory elements related to hormone and stress responses. An expression profile analysis showed that CsPSK genes are highly expressed in roots, stems, flowers, and leaves, and are induced by both biotic and abiotic stresses. Furthermore, an RT-qPCR assay demonstrated that the expression levels of CsPSK8, CsPSK9, and CsPSK10 are significantly upregulated following Discula theae-sinensis infection. These findings establish a basis for further research into the role of the CsPSK gene family in tea plant disease resistance and underlying molecular mechanisms, offering valuable perspectives for developing novel antimicrobial peptides. Full article
(This article belongs to the Special Issue Plants Redox Biology)
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