Special Issue "Manganese Homeostasis in Plant"

A special issue of Plants (ISSN 2223-7747).

Deadline for manuscript submissions: 31 December 2019.

Special Issue Editor

Dr. Anja Schneider
E-Mail Website
Guest Editor
Ludwig-Maximilians-Universität München, Department Biology I, Division Plant Science, Großhaderner Str. 2-4, 82152 Planegg-Martinsried, Germany
Tel. +4989218974696
Interests: plant chloroplasts; envelope and thylakoid membrane transporter; photosynthesis; manganese transporter; plant development

Special Issue Information

Nearly one century ago, the trace metal manganese proved to be essential for the development and productivity of plants. Manganese is involved in the activation of more than 30 enzymes and is an integral part of the manganese-containing superoxide dismutase and the oxygen evolving complex of photosystem II, which is essential for photoautotrophic growth.

For optimal plant growth, adequate manganese supply is required, and it must be well balanced. The availability of Mn2+ in soil is influenced by parameters such as pH, soil porosity, water content, and redox conditions. Therefore, plants must often adapt to fluctuations in manganese concentrations during their growth phase. Manganese deficiency symptoms develop as interveinal chlorosis on young leaves and frequently occur in alkaline soils, while manganese toxicity is one of the factors limiting crop plant production in acidic soils. In the past two decades, the molecular identification of transporters in model plants such as rice and Arabidopsis has made tremendous progress in understanding manganese uptake, translocation, distribution, and detoxification. There are also many more transporters awaiting their discovery. Moreover, many manganese hyperaccumulator species have been identified, but little is known about the underlying molecular mechanisms so far. In addition, the regulation of gene expression in response to changes in Mn2+ availability is an important aspect of manganese homeostasis, and RNA sequencing techniques can be used to study these aspects. A better understanding of manganese homeostasis in plants will in future help to improve the productivity of crops on problematic soils.

Therefore, in this Special Issue, articles (original research, perspectives, reviews, and methods) focusing on manganese homeostasis and its regulation in model plants, crops, and native species are very welcome.

Dr. Anja Schneider
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 papers will be 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. Plants is an international peer-reviewed open access monthly 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 1200 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

  • Mn availability
  • Mn nutrition
  • Mn uptake efficiency
  • Mn deficiency
  • Mn hyperaccumulation
  • Mn metabolism
  • Mn distribution
  • Mn detection

Published Papers (1 paper)

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Review

Open AccessFeature PaperReview
The Biochemical Properties of Manganese in Plants
Plants 2019, 8(10), 381; https://doi.org/10.3390/plants8100381 - 27 Sep 2019
Abstract
Manganese (Mn) is an essential micronutrient with many functional roles in plant metabolism. Manganese acts as an activator and co-factor of hundreds of metalloenzymes in plants. Because of its ability to readily change oxidation state in biological systems, Mn plays and important role [...] Read more.
Manganese (Mn) is an essential micronutrient with many functional roles in plant metabolism. Manganese acts as an activator and co-factor of hundreds of metalloenzymes in plants. Because of its ability to readily change oxidation state in biological systems, Mn plays and important role in a broad range of enzyme-catalyzed reactions, including redox reactions, phosphorylation, decarboxylation, and hydrolysis. Manganese(II) is the prevalent oxidation state of Mn in plants and exhibits fast ligand exchange kinetics, which means that Mn can often be substituted by other metal ions, such as Mg(II), which has similar ion characteristics and requirements to the ligand environment of the metal binding sites. Knowledge of the molecular mechanisms catalyzed by Mn and regulation of Mn insertion into the active site of Mn-dependent enzymes, in the presence of other metals, is gradually evolving. This review presents an overview of the chemistry and biochemistry of Mn in plants, including an updated list of known Mn-dependent enzymes, together with enzymes where Mn has been shown to exchange with other metal ions. Furthermore, the current knowledge of the structure and functional role of the three most well characterized Mn-containing metalloenzymes in plants; the oxygen evolving complex of photosystem II, Mn superoxide dismutase, and oxalate oxidase is summarized. Full article
(This article belongs to the Special Issue Manganese Homeostasis in Plant)
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