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Cells
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Protein Quality Controlling Systems in Plant Responses to Environmental Stresses
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Protein Quality Controlling Systems in Plant Responses to Environmental Stresses

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Plant, Algae and Fungi Cell Biology".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 6637

Special Issue Editor

Prof. Dr. Hanjo Hellmann

E-Mail Website
Guest Editor
Plant Stress Physiology, School of Biological Sciences, Washington State University, Pullman, WA 99163, USA
Interests: ubiquitin proteasome pathway; E3 ligases; stress physiology; vitamin B6 metabolism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As sessile organisms plants face many challenges to cope with daily and seasonal environmental changes. Proper coordination of developmental and physiological processes in response to sudden or long-term changes at their growing site is crucial. A key to guarantee that plants not only survive under environmental stresses, but also thrive and reproduce, is proper protein quality control and regulation, such as molecular chaperones and proteases. These systems verify the current functional status, proper folding, post-translational processing, and ensure degradation and recycling of proteins throughout organisms. This special topic is calling for primary research articles or reviews that focus on current novel developments and applications that highlight these protein controlling systems and their impact for plant survival under environmental stresses.

Prof. Dr. Hanjo Hellmann
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. Cells is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). 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

  • Protein quality control
  • chaperones
  • HSP
  • Ubiquitin
  • Abiotic stress
  • Plant Physiology

Published Papers (2 papers)

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Research

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18 pages, 46715 KiB  
Article
Proteolytic and Structural Changes in Rye and Triticale Roots under Aluminum Stress
by Joanna Szewińska, Elżbieta Różańska, Ewa Papierowska and Mateusz Labudda
Cells 2021, 10(11), 3046; https://doi.org/10.3390/cells10113046 - 05 Nov 2021
Cited by 4 | Viewed by 1645
Abstract
Proteolysis and structural adjustments are significant for defense against heavy metals. The purpose of this study was to evaluate whether the Al3+ stress alters protease activity and the anatomy of cereale roots. Azocaseinolytic and gelatinolytic measurements, transcript-level analysis of phytocystatins, and observations [...] Read more.
Proteolysis and structural adjustments are significant for defense against heavy metals. The purpose of this study was to evaluate whether the Al3+ stress alters protease activity and the anatomy of cereale roots. Azocaseinolytic and gelatinolytic measurements, transcript-level analysis of phytocystatins, and observations under microscopes were performed on the roots of Al3+-tolerant rye and tolerant and sensitive triticales exposed to Al3+. In rye and triticales, the azocaseinolytic activity was higher in treated roots. The gelatinolytic activity in the roots of rye was enhanced between 12 and 24 h in treated roots, and decreased at 48 h. The gelatinolytic activity in treated roots of tolerant triticale was the highest at 24 h and the lowest at 12 h, whereas in treated roots of sensitive triticale it was lowest at 12 h but was enhanced at 24 and 48 h. These changes were accompanied by increased transcript levels of phytocystatins in rye and triticale-treated roots. Light microscope analysis of rye roots revealed disintegration of rhizodermis in treated roots at 48 h and indicated the involvement of root border cells in rye defense against Al3+. The ultrastructural analysis showed vacuoles containing electron-dense precipitates. We postulate that proteolytic-antiproteolytic balance and structural acclimation reinforce the fine-tuning to Al3+. Full article
(This article belongs to the Special Issue Protein Quality Controlling Systems in Plant Responses to Environmental Stresses)
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Review

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29 pages, 2751 KiB  
Review
Plant E3 Ligases and Their Role in Abiotic Stress Response
by Raed Al-Saharin, Hanjo Hellmann and Sutton Mooney
Cells 2022, 11(5), 890; https://doi.org/10.3390/cells11050890 - 04 Mar 2022
Cited by 29 | Viewed by 4140
Abstract
Plants, as sessile organisms, have limited means to cope with environmental changes. Consequently, they have developed complex regulatory systems to ameliorate abiotic stresses im-posed by environmental changes. One such system is the ubiquitin proteasome pathway, which utilizes E3 ligases to target proteins for [...] Read more.
Plants, as sessile organisms, have limited means to cope with environmental changes. Consequently, they have developed complex regulatory systems to ameliorate abiotic stresses im-posed by environmental changes. One such system is the ubiquitin proteasome pathway, which utilizes E3 ligases to target proteins for proteolytic degradation via the 26S proteasome. Plants ex-press a plethora of E3 ligases that are categorized into four major groups depending on their structure. They are involved in many biological and developmental processes in plants, such as DNA repair, photomorphogenesis, phytohormones signaling, and biotic stress. Moreover, many E3 ligase targets are proteins involved in abiotic stress responses, such as salt, drought, heat, and cold. In this review, we will provide a comprehensive overview of E3 ligases and their substrates that have been connected with abiotic stress in order to illustrate the diversity and complexity of how this pathway enables plant survival under stress conditions. Full article
(This article belongs to the Special Issue Protein Quality Controlling Systems in Plant Responses to Environmental Stresses)
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