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Plants
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Plant-Microbe Interactions
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Plant-Microbe Interactions

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 5280

Special Issue Editors

Prof. Dr. Maria Carolina Quecine Verdi

E-Mail Website
Guest Editor
Department of Genetics, Luiz de Queiroz College of Agriculture, University of São Paulo, 11 Pádua Dias Av., Piracicaba 13418-900, SP, Brazil
Interests: bacterial genetics; plant-micro-interaction; omics; biodiversity
Dr. Bruna Durante Batista

E-Mail Website
Guest Editor
Hawkesbury Inst Environm, Western Sydney Univ, Richmond, NSW 2751, Australia
Interests: metagenomics; plant-microbe interaction; biofertilizers

Special Issue Information

Dear Colleagues,

Among the millions of bacteria, archaea, fungi, algae, and other micro-organisms estimated to occur on our planet, only a small number are known and less about those that interact directly with plants. Some mechanisms involved in plant–pathogen interactions is better understood, however little is known concerning the molecular mechanisms involved in beneficial plant–microbe interaction. The potential of beneficial microorganisms occurring in tropical areas of the world is not yet conveniently explored. New species should be found associated with plant and new biotechnological process may be discovered. In the present Special Issue, we propose the improvement of the knowledge concerning cultured and non-cultured microorganisms associated with plants and molecular mechanisms involved in this interaction. The omics are a very exciting tool to improve the molecular bases of plant–microbe interaction. Even the better understood of plant–pathogen interactions, the Special Issue is expected to spotlight the potential of microorganisms from plants for biotechnological useful purposes.

Prof. Dr. Maria Carolina Quecine Verdi
Dr. Bruna Durante Durante Batista
Guest Editors

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

  • microbes
  • molecular interactions
  • disease
  • plant growth promotion
  • metadata
  • omics

Published Papers (3 papers)

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Research

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12 pages, 2403 KiB  
Article
Understanding Burkholderia glumae BGR1 Virulence through the Application of Toxoflavin-Degrading Enzyme, TxeA
by Namgyu Kim, Duyoung Lee, Sais-Beul Lee, Gah-Hyun Lim, Sang-Woo Kim, Tae-Jin Kim, Dong-Soo Park and Young-Su Seo
Plants 2023, 12(23), 3934; https://doi.org/10.3390/plants12233934 - 22 Nov 2023
Viewed by 1187
Abstract
Rice (Oryzae sativa cv. dongjin) is a cornerstone of global food security; however, Burkholderia glumae BGR1, which is responsible for bacterial panicle blight (BPB), threatens its productive output, with dire consequences for rice and other crops. BPB is primarily caused by toxoflavin, [...] Read more.
Rice (Oryzae sativa cv. dongjin) is a cornerstone of global food security; however, Burkholderia glumae BGR1, which is responsible for bacterial panicle blight (BPB), threatens its productive output, with dire consequences for rice and other crops. BPB is primarily caused by toxoflavin, a potent phytotoxin that disrupts plant growth at various developmental stages. Therefore, understanding the mechanisms through which toxoflavin and BPB affect rice plants is critical. Toxoflavin biosynthesis in B. glumae BGR1 relies on the toxABCDE operon, with ToxA playing a central role. In response to this threat, our study explores a metagenome-derived toxoflavin-degrading enzyme, TxeA, as a potential defense mechanism against toxoflavin’s destructive impact. TxeA-induced degradation of toxoflavin represents a potential strategy to mitigate crop damage. We introduce a groundbreaking approach: engineering transgenic rice plants to produce toxoflavin-degrading enzymes. These genetically modified plants, armed with TxeA, hold significant potential for combating toxoflavin-related crop losses. However, removal of toxoflavin, a major virulence factor in B. glumae BGR1, does not completely inhibit virulence. This innovative perspective offers a new shift from pathogen eradication to leveraging transgenic plants’ power, offering a beacon of hope for crop protection and disease management. Our study offers insights into the intricate interplay between toxoflavin, BPB, and TxeA, providing a promising avenue to safeguard rice crops, ensure food security, and potentially enhance the resilience of various agricultural crops to B. glumae BGR1-induced diseases. Full article
(This article belongs to the Special Issue Plant-Microbe Interactions)
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16 pages, 1303 KiB  
Article
Stimulation of PGP Bacteria on the Development of Seeds, Plants and Cuttings of the Obligate Halophyte Arthrocaulon (Arthrocnemum) macrostachyum (Moric.) Piirainen & G. Kadereit
by José-María Barcia-Piedras, Jesús-Alberto Pérez-Romero, Enrique Mateos-Naranjo, Raquel Parra, Ignacio-David Rodríguez-Llorente, María Camacho and Susana Redondo-Gómez
Plants 2023, 12(7), 1436; https://doi.org/10.3390/plants12071436 - 24 Mar 2023
Cited by 1 | Viewed by 1423
Abstract
The Earth is undergoing alterations at a high speed, which causes problems such as environmental pollution and difficulty in food production. This is where halophytes are interesting, due to their high potential in different fields, such as remediation of the environment and agriculture. [...] Read more.
The Earth is undergoing alterations at a high speed, which causes problems such as environmental pollution and difficulty in food production. This is where halophytes are interesting, due to their high potential in different fields, such as remediation of the environment and agriculture. For this reason, it is necessary to deepen the knowledge of the development of halophytes and how plant growth-promoting bacteria (PGP) can play a fundamental role in this process. Therefore, in this work were tested the effects of five PGP bacteria on its rhizosphere and other endophytic bacteria at different concentrations of NaCl on seed germination, plant growth (0 and 171 mM) and cutting growth (0 mM) of Arthrocaulon macrostachyum. The growth promotion in this strict halophyte is highlighted due to the presence of PGP bacteria and the fact that no salt is needed. Thus, without salt, the bacterial strains Kocuria polaris Hv16, Pseudarthrobacter psychrotolerans C58, and Rahnella aceris RTE9 enhanced the biomass production by more than 60% in both stems and roots. Furthermore, germination was encouraged by more than 30% in the presence of both R. aceris RTE9 and K. polaris Hv16 at 171 mM NaCl; the latter also had a biocontrol effect on the fungi that grew on the seeds. Additionally, for the first time in cuttings of this perennial species, the root biomass was improved thanks to the consortium of K. polaris Hv16 and P. psychrotolerans C58. Finally, this study demonstrates the potential of PGPs for optimising the development of halophytes, either for environmental or agronomic purposes. Full article
(This article belongs to the Special Issue Plant-Microbe Interactions)
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Review

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12 pages, 622 KiB  
Review
Plant Elicitor Peptide (Pep) Signaling and Pathogen Defense in Tomato
by Alice K. Zelman and Gerald Alan Berkowitz
Plants 2023, 12(15), 2856; https://doi.org/10.3390/plants12152856 - 3 Aug 2023
Cited by 3 | Viewed by 2120
Abstract
Endogenous signaling compounds are intermediaries in signaling pathways that plants use to respond to the perception of harmful and beneficial organisms. The plant elicitor peptides (Peps) of plants are important endogenous signaling molecules that induce elements of defense responses such as hormone production, [...] Read more.
Endogenous signaling compounds are intermediaries in signaling pathways that plants use to respond to the perception of harmful and beneficial organisms. The plant elicitor peptides (Peps) of plants are important endogenous signaling molecules that induce elements of defense responses such as hormone production, increased expression of defensive genes, the activation of phosphorelays, and the induction of cell secondary messenger synthesis. The processes by which Peps confer resistance to pathogenic microorganisms have been extensively studied in Arabidopsis but are less known in crop plants. Tomato and many other solanaceous plants have an endogenous signaling polypeptide, systemin, that is involved in the defense against herbivorous insects and necrotrophic pathogens. This paper explores the similarity of the effects and chemical properties of Pep and systemin in tomato. Additionally, the relationship of the Pep receptor and systemin receptors is explored, and the identification of a second tomato Pep receptor in the literature is called into question. We suggest future directions for research on Pep signaling in solanaceous crops during interactions with microbes. Full article
(This article belongs to the Special Issue Plant-Microbe Interactions)
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