Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.5
4.5
Journals
Plants
Special Issues
Manganese Homeostasis in Plant
share announcement

Manganese Homeostasis in Plant

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

Deadline for manuscript submissions: closed (31 December 2019) | Viewed by 17944

Special Issue Editor

Dr. Anja Schneider

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

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 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. Plants 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

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

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

14 pages, 4589 KiB  
Article
Homologous Proteins of the Manganese Transporter PAM71 Are Localized in the Golgi Apparatus and Endoplasmic Reticulum
by Natalie Hoecker, Anna Honke, Katharina Frey, Dario Leister and Anja Schneider
Plants 2020, 9(2), 239; https://doi.org/10.3390/plants9020239 - 13 Feb 2020
Cited by 17 | Viewed by 2840
Abstract
Chloroplast manganese transporter 1 (CMT1) and photosynthesis-affected mutant 71 (PAM71) are two membrane proteins that function sequentially to mediate the passage of manganese across the chloroplast envelope and the thylakoid membrane. CMT1 and PAM71 belong to a small five-member protein family in Arabidopsis [...] Read more.
Chloroplast manganese transporter 1 (CMT1) and photosynthesis-affected mutant 71 (PAM71) are two membrane proteins that function sequentially to mediate the passage of manganese across the chloroplast envelope and the thylakoid membrane. CMT1 and PAM71 belong to a small five-member protein family in Arabidopsis thaliana. The other three, photosynthesis-affected mutant 71 like 3 (PML3), PML4 and PML5 are not predicted to reside in chloroplast membranes. In this study, the subcellular localization of PML3:GFP, PML4:GFP and PML5:GFP was determined using transient and stable expression assays. PML3:GFP localizes to the Golgi apparatus, whereas PML4:GFP and PML5:GFP are found in the endoplasmic reticulum. We also examined patterns of PML3, PML4 and PML5 promoter activity. Although the precise expression pattern of each promoter was unique, all three genes were expressed in the leaf vasculature and in roots. Greenhouse grown single mutants pml3, pml4, pml5 and the pml4/pml5 double mutant did not exhibit growth defects, however an inspection of the root growth revealed a difference between pml3 and the other genotypes, including wild-type, in 500 µM manganese growth conditions. Strikingly, overexpression of PML3 resulted in a stunted growth phenotype. Putative functions of PML3, PML4 and PML5 are discussed in light of what is known about PAM71 and CMT1. Full article
(This article belongs to the Special Issue Manganese Homeostasis in Plant)
►▼ Show Figures

Graphical abstract

Review

Jump to: Research

10 pages, 606 KiB  
Review
Manganese Homeostasis in Cyanobacteria
by Marion Eisenhut
Plants 2020, 9(1), 18; https://doi.org/10.3390/plants9010018 - 23 Dec 2019
Cited by 16 | Viewed by 4493
Abstract
Manganese (Mn) is essential for life on earth. As a catalyst of the water oxidation reaction within photosystem II, the trace metal is responsible for the evolution of virtually all oxygen in the earth’s atmosphere. Mn acts furthermore as an activator or cofactor [...] Read more.
Manganese (Mn) is essential for life on earth. As a catalyst of the water oxidation reaction within photosystem II, the trace metal is responsible for the evolution of virtually all oxygen in the earth’s atmosphere. Mn acts furthermore as an activator or cofactor of numerous enzymes involved in reactive oxygen species scavenging or central and secondary metabolism. While the sufficient supply of oxygenic photosynthetic organisms with Mn is obvious for maintaining photosynthetic activity, the avoidance of cellular Mn overload is also critical. In this review, current knowledge about the Mn homeostasis network in the model cyanobacterium Synechocystis sp. PCC 6803 is presented, including transporters and regulators. Full article
(This article belongs to the Special Issue Manganese Homeostasis in Plant)
►▼ Show Figures

Figure 1

15 pages, 1340 KiB  
Review
The Biochemical Properties of Manganese in Plants
by Sidsel Birkelund Schmidt and Søren Husted
Plants 2019, 8(10), 381; https://doi.org/10.3390/plants8100381 - 27 Sep 2019
Cited by 122 | Viewed by 10109
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)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop