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Chloroplast and Stress Signaling 2.0
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Chloroplast and Stress Signaling 2.0

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 (28 February 2023) | Viewed by 3534

Special Issue Editor

Dr. Koichi Kobayashi

E-Mail Website
Guest Editor
Faculty of Liberal Arts and Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan
Interests: plant; chloroplast; thylakoid; photosynthesis; membrane lipids; chlorophyll
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Photosynthesis is inarguably the most important biological process on earth, and chloroplast is the plant organelle that carries it out. However, recent studies have indicated that chloroplasts suffering from stress conditions (e.g., high light, drought, low/high temperature, nutrient limitation, pathogen infection) produce specific signals and regulate the expression of nucleus genes. Meanwhile, stressed chloroplast also elicits post-translational modifications including autophagy, budding or even degradation. Thus, chloroplasts are not only the centers of plant metabolism, but also sensors of environmental stresses. This Special Issue focuses on the role of chloroplast in sensing and transmitting stress signals as well as its responses to environmental stresses.

Dr. Koichi Kobayashi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • chloroplast
  • stress
  • signaling
  • photosynthesis

Published Papers (2 papers)

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Research

15 pages, 5269 KiB  
Article
Silencing of Pepper CaFtsH1 or CaFtsH8 Genes Alters Normal Leaf Development
by Kai Xu, Ning Li, Yiwen Zhang, Shenghua Gao, Yanxu Yin, Minghua Yao and Fei Wang
Int. J. Mol. Sci. 2023, 24(5), 4927; https://doi.org/10.3390/ijms24054927 - 03 Mar 2023
Viewed by 1543
Abstract
Filamentation temperature-sensitive H (FtsH) is a proteolytic enzyme that plays an important role in plant photomorphogenesis and stress resistance. However, information regarding the FtsH family genes in pepper is limited. In our research, through genome-wide identification, 18 members of the pepper [...] Read more.
Filamentation temperature-sensitive H (FtsH) is a proteolytic enzyme that plays an important role in plant photomorphogenesis and stress resistance. However, information regarding the FtsH family genes in pepper is limited. In our research, through genome-wide identification, 18 members of the pepper FtsH family (including five FtsHi members) were identified and renamed based on phylogenetic analysis. CaFtsH1 and CaFtsH8 were found to be essential for pepper chloroplast development and photosynthesis because FtsH5 and FtsH2 were lost in Solanaceae diploids. We found that the CaFtsH1 and CaFtsH8 proteins were located in the chloroplasts and specifically expressed in pepper green tissues. Meanwhile, CaFtsH1 and CaFtsH8-silenced plants created by virus-induced gene silencing exhibited albino leaf phenotypes. In addition, CaFtsH1-silenced plants were observed to contain very few dysplastic chloroplasts and lost the capacity for photoautotrophic growth. Transcriptome analysis revealed that the expression of chloroplast-related genes such as those coding the photosynthesis-antenna protein and structural proteins was downregulated in CaFtsH1-silenced plants, resulting in the inability to form normal chloroplasts. This study improves our understanding of pepper chloroplast formation and photosynthesis through the identification and functional study of CaFtsH genes. Full article
(This article belongs to the Special Issue Chloroplast and Stress Signaling 2.0)
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16 pages, 3604 KiB  
Article
Different Photosynthetic Response to High Light in Four Triticeae Crops
by Lun-Xing Chen, Hao-Tian Mao, Shuai Lin, Atta Mohi Ud Din, Xiao-Yan Yin, Ming Yuan, Zhong-Wei Zhang, Shu Yuan, Huai-Yu Zhang and Yang-Er Chen
Int. J. Mol. Sci. 2023, 24(2), 1569; https://doi.org/10.3390/ijms24021569 - 13 Jan 2023
Cited by 3 | Viewed by 1606
Abstract
Photosynthetic capacity is usually affected by light intensity in the field. In this study, photosynthetic characteristics of four different Triticeae crops (wheat, triticale, barley, and highland barley) were investigated based on chlorophyll fluorescence and the level of photosynthetic proteins under high light. Compared [...] Read more.
Photosynthetic capacity is usually affected by light intensity in the field. In this study, photosynthetic characteristics of four different Triticeae crops (wheat, triticale, barley, and highland barley) were investigated based on chlorophyll fluorescence and the level of photosynthetic proteins under high light. Compared with wheat, three cereals (triticale, barley, and highland barley) presented higher photochemical efficiency and heat dissipation under normal light and high light for 3 h, especially highland barley. In contrast, lower photoinhibition was observed in barley and highland barley relative to wheat and triticale. In addition, barley and highland barley showed a lower decline in D1 and higher increase in Lhcb6 than wheat and triticale under high light. Furthermore, compared with the control, the results obtained from PSII protein phosphorylation showed that the phosphorylation level of PSII reaction center proteins (D1 and D2) was higher in barley and highland barley than that of wheat and triticale. Therefore, we speculated that highland barley can effectively alleviate photodamages to photosynthetic apparatus by high photoprotective dissipation, strong phosphorylation of PSII reaction center proteins, and rapid PSII repair cycle under high light. Full article
(This article belongs to the Special Issue Chloroplast and Stress Signaling 2.0)
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