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Special Issue "Latest Review Papers in Plant Microbe Interactions 2023"

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A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Plant Microbe Interactions".

Deadline for manuscript submissions: 31 December 2023 | Viewed by 8354

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Special Issue Editor

Prof. Dr. James F. White

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Guest Editor

Department of Plant Biology Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
Interests: plant microbes; endophytes; rhizophagy cycle

Special Issue Information

Dear Colleagues,

This Special Issue aims to collect high quality review papers in all the fields of Plant Microbe Interactions. We encourage researchers from related fields to contribute review papers highlighting the latest developments in section Plant Microbe Interactions, or to invite relevant experts and colleagues to do so. Full length comprehensive reviews will be preferred.

Prof. Dr. James F. White
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. Microorganisms 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 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

disease protection
endophytes
endosymbiosis
epiphytes
lichens
mycorrhizae
nitrogen fixation
pathogens
pathogenesis
phosphate solubilization
rhizobacteria
rhizophagy cycle
stress tolerance
symbiosis

Published Papers (6 papers)

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Review

23 pages, 1839 KiB

Open AccessReview

Plant Growth-Promoting Bacteria of Soil: Designing of Consortia Beneficial for Crop Production

Anna M. Timofeeva

Maria R. Galyamova

and

Sergey E. Sedykh

Microorganisms 2023, 11(12), 2864; https://doi.org/10.3390/microorganisms11122864 - 26 Nov 2023

Viewed by 347

Abstract

Plant growth-promoting bacteria are commonly used in agriculture, particularly for seed inoculation. Multispecies consortia are believed to be the most promising form of these bacteria. However, designing and modeling bacterial consortia to achieve desired phenotypic outcomes in plants is challenging. This review aims to address this challenge by exploring key antimicrobial interactions. Special attention is given to approaches for developing soil plant growth-promoting bacteria consortia. Additionally, advanced omics-based methods are analyzed that allow soil microbiomes to be characterized, providing an understanding of the molecular and functional aspects of these microbial communities. A comprehensive discussion explores the utilization of bacterial preparations in biofertilizers for agricultural applications, focusing on the intricate design of synthetic bacterial consortia with these preparations. Overall, the review provides valuable insights and strategies for intentionally designing bacterial consortia to enhance plant growth and development. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

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19 pages, 4935 KiB

Open AccessReview

Genomic and Pathogenicity Mechanisms of the Main Theobroma cacao L. Eukaryotic Pathogens: A Systematic Review

Diogo Pereira Silva de Novais

Thiago Mafra Batista

Eduardo Almeida Costa

and

Carlos Priminho Pirovani

Microorganisms 2023, 11(6), 1567; https://doi.org/10.3390/microorganisms11061567 - 13 Jun 2023

Viewed by 967

Abstract

A set of diseases caused by fungi and oomycetes are responsible for large losses in annual world cocoa production. Managing the impact caused by these diseases is very complex because a common solution has yet to be found for different pathogens. In this context, the systematic knowledge of Theobroma cacao L. pathogens’ molecular characteristics may help researchers understand the possibilities and limitations of cocoa disease management strategies. This work systematically organized and summarized the main findings of omics studies of T. cacao eukaryotic pathogens, focusing on the plant–pathogen interaction and production dynamics. Using the PRISMA protocol and a semiautomated process, we selected papers from the Scopus and Web of Science databases and collected data from the selected papers. From the initial 3169 studies, 149 were selected. The first author’s affiliations were mostly from two countries, Brazil (55%) and the USA (22%). The most frequent genera were Moniliophthora (105 studies), Phytophthora (59 studies) and Ceratocystis (13 studies). The systematic review database includes papers reporting the whole-genome sequence from six cocoa pathogens and evidence of some necrosis-inducing-like proteins, which are common in T. cacao pathogen genomes. This review contributes to the knowledge about T. cacao diseases, providing an integrated discussion of T. cacao pathogens’ molecular characteristics, common mechanisms of pathogenicity and how this knowledge is produced worldwide. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

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18 pages, 1618 KiB

Open AccessReview

Interactions of Different Species of Phytophthora with Cacao Induce Genetic, Biochemical, and Morphological Plant Alterations

Angra Paula Bomfim Rêgo

Irma Yuliana Mora-Ocampo

and

Ronan Xavier Corrêa

Microorganisms 2023, 11(5), 1172; https://doi.org/10.3390/microorganisms11051172 - 29 Apr 2023

Cited by 1 | Viewed by 1042

Abstract

Diseases associated with Phytophthora cause considerable losses in cocoa production worldwide. Analyzing genes, proteins, and metabolites involved in Theobroma cacao’s interaction with Phytophthora species is essential to explaining the molecular aspects of plant defense. Through a systematic literature review, this study aims to identify reports of genes, proteins, metabolites, morphological characteristics, and molecular and physiological processes of T. cacao involved in its interaction with species of Phytophthora. After the searches, 35 papers were selected for the data extraction stage, according to pre-established inclusion and exclusion criteria. In these studies, 657 genes and 32 metabolites, among other elements (molecules and molecular processes), were found to be involved in the interaction. The integration of this information resulted in the following conclusions: the expression patterns of pattern recognition receptors (PRRs) and a possible gene-to-gene interaction participate in cocoa resistance to Phytophthora spp.; the expression pattern of genes that encode pathogenesis-related (PRs) proteins is different between resistant and susceptible genotypes; phenolic compounds play an important role in preformed defenses; and proline accumulation may be involved in cell wall integrity. Only one proteomics study of T. cacao-Phytophthora spp. was found, and some genes proposed via QTL analysis were confirmed in transcriptomic studies. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

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17 pages, 356 KiB

Open AccessReview

The Exploitation of Microbial Antagonists against Postharvest Plant Pathogens

Lamenew Fenta

Habtamu Mekonnen

and

Negash Kabtimer

Microorganisms 2023, 11(4), 1044; https://doi.org/10.3390/microorganisms11041044 - 16 Apr 2023

Cited by 2 | Viewed by 2227

Abstract

Postharvest disease management is vital to increase the quality and productivity of crops. As part of crop disease protection, people used different agrochemicals and agricultural practices to manage postharvest diseases. However, the widespread use of agrochemicals in pest and disease control has detrimental effects on consumer health, the environment, and fruit quality. To date, different approaches are being used to manage postharvest diseases. The use of microorganisms to control postharvest disease is becoming an eco-friendly and environmentally sounds approach. There are many known and reported biocontrol agents, including bacteria, fungi, and actinomycetes. Nevertheless, despite the abundance of publications on biocontrol agents, the use of biocontrol in sustainable agriculture requires substantial research, effective adoption, and comprehension of the interactions between plants, pathogens, and the environment. To accomplish this, this review made an effort to locate and summarize earlier publications on the function of microbial biocontrol agents against postharvest crop diseases. Additionally, this review aims to investigate biocontrol mechanisms, their modes of operation, potential future applications for bioagents, as well as difficulties encountered during the commercialization process. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

24 pages, 2711 KiB

Open AccessReview

Adaption of Pseudomonas ogarae F113 to the Rhizosphere Environment—The AmrZ-FleQ Hub

and

Microorganisms 2023, 11(4), 1037; https://doi.org/10.3390/microorganisms11041037 - 15 Apr 2023

Cited by 1 | Viewed by 1432

Abstract

Motility and biofilm formation are two crucial traits in the process of rhizosphere colonization by pseudomonads. The regulation of both traits requires a complex signaling network that is coordinated by the AmrZ-FleQ hub. In this review, we describe the role of this hub in the adaption to the rhizosphere. The study of the direct regulon of AmrZ and the phenotypic analyses of an amrZ mutant in Pseudomonas ogarae F113 has shown that this protein plays a crucial role in the regulation of several cellular functions, including motility, biofilm formation, iron homeostasis, and bis-(3′-5′)-cyclic dimeric guanosine monophosphate (c-di-GMP) turnover, controlling the synthesis of extracellular matrix components. On the other hand, FleQ is the master regulator of flagellar synthesis in P. ogarae F113 and other pseudomonads, but its implication in the regulation of multiple traits related with environmental adaption has been shown. Genomic scale studies (ChIP-Seq and RNA-Seq) have shown that in P. ogarae F113, AmrZ and FleQ are general transcription factors that regulate multiple traits. It has also been shown that there is a common regulon shared by the two transcription factors. Moreover, these studies have shown that AmrZ and FleQ form a regulatory hub that inversely regulate traits such as motility, extracellular matrix component production, and iron homeostasis. The messenger molecule c-di-GMP plays an essential role in this hub since its production is regulated by AmrZ and it is sensed by FleQ and required for its regulatory role. This regulatory hub is functional both in culture and in the rhizosphere, indicating that the AmrZ-FleQ hub is a main player of P. ogarae F113 adaption to the rhizosphere environment. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

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22 pages, 5544 KiB

Open AccessReview

Modes of Action of Biocontrol Agents and Elicitors for sustainable Protection against Bacterial Canker of Tomato

and

Microorganisms 2023, 11(3), 726; https://doi.org/10.3390/microorganisms11030726 - 11 Mar 2023

Cited by 3 | Viewed by 1797

Abstract

Tomato is one of the world’s most commonly grown and consumed vegetables. However, it can be attacked by the Gram-positive bacterium Clavibacter michiganensis subsp. michiganensis (Cmm), which causes bacterial canker on tomato plants, resulting in significant financial losses in field production and greenhouses worldwide. The current management strategies rely principally on the application of various chemical pesticides and antibiotics, which represent a real danger to the environment and human safety. Plant growth-promoting rhizobacteria (PGPR) have emerged as an attractive alternative to agrochemical crop protection methods. PGPR act through several mechanisms to support plant growth and performance, while also preventing pathogen infection. This review highlights the importance of bacterial canker disease and the pathogenicity of Cmm. We emphasize the application of PGPR as an ecological and cost-effective approach to the biocontrol of Cmm, specifying the complex modes of biocontrol agents (BCAs), and presenting their direct/indirect mechanisms of action that enable them to effectively protect tomato crops. Pseudomonas and Bacillus are considered to be the most interesting PGPR species for the biological control of Cmm worldwide. Improving plants’ innate defense mechanisms is one of the main biocontrol mechanisms of PGPR to manage bacterial canker and to limit its occurrence and gravity. Herein, we further discuss elicitors as a new management strategy to control Cmm, which are found to be highly effective in stimulating the plant immune system, decreasing disease severity, and minimizing pesticide use. Full article

(This article belongs to the Special Issue Latest Review Papers in Plant Microbe Interactions 2023)

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