Special Issue "Beneficial Microorganisms for Plants"

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: 31 December 2023 | Viewed by 790

Special Issue Editor

Unité Écologie et Dynamique des Systèmes Anthropisés (EDYSAN UMR CNRS 7058 CNRS), Université de Picardie Jules Verne, UFR des Sciences, 80029 Amiens, France
Interests: Plant-Growth-Promoting Rhizobacteria (PGPR); soil microbial communities; sphingomonas; plant–bacteria interaction
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Special Issue Information

Dear Colleagues,

Microorganisms have been successfully used in agriculture as a strategy to sustainably improve plant growth and health. However, these approaches are still limited to a small number of organisms and their effectiveness is often limited when transferred from the laboratory to the field. Conversely, the impact of these microbial inputs on microbial communities is generally neglected, while the introduction of high densities of microorganisms can affect the complex and dynamic balance of soil microbial communities.

This Special Issue is devoted to original papers dealing with (i) the use of microorganisms (alone, in combination, or at the community level) to improve plant growth and health; (ii) the factors that influence or improve the efficiency of these beneficial microorganisms; and (iii) the effects of these microorganisms on native microbial communities, especially in a laboratory-to-field transfer approach.

Dr. Jérôme Duclercq
Guest Editor

Manuscript Submission Information

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  • plant-growth-promoting rhizobacteria (PGPR)
  • mycorrhizal fungi
  • beneficial microorganisms
  • soil microbial communities

Published Papers (1 paper)

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Transcriptome Analysis Reveals That C17 Mycosubtilin Antagonizes Verticillium dahliae by Interfering with Multiple Functional Pathways of Fungi
Biology 2023, 12(4), 513; https://doi.org/10.3390/biology12040513 - 29 Mar 2023
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Verticillium wilt is a kind of soil-borne plant fungal disease caused by Verticillium dahliae (Vd). Vd 991 is a strong pathogen causing cotton Verticillium wilt. Previously, we isolated a compound from the secondary metabolites of Bacillus subtilis J15 (BS J15), which showed a [...] Read more.
Verticillium wilt is a kind of soil-borne plant fungal disease caused by Verticillium dahliae (Vd). Vd 991 is a strong pathogen causing cotton Verticillium wilt. Previously, we isolated a compound from the secondary metabolites of Bacillus subtilis J15 (BS J15), which showed a significant control effect on cotton Verticillium wilt and was identified as C17 mycosubtilin. However, the specific fungistatic mechanism by which C17 mycosubtilin antagonizes Vd 991 is not clear. Here, we first showed that C17 mycosubtilin inhibits the growth of Vd 991 and affects germination of spores at the minimum inhibitory concentration (MIC). Morphological observation showed that C17 mycosubtilin treatment caused shrinking, sinking, and even damage to spores; the hyphae became twisted and rough, the surface was sunken, and the contents were unevenly distributed, resulting in thinning and damage to the cell membrane and cell wall and swelling of mitochondria of fungi. Flow cytometry analysis with ANNEXINV-FITC/PI staining showed that C17 mycosubtilin induces necrosis of Vd 991 cells in a time-dependent manner. Differential transcription analysis showed that C17 mycosubtilin at a semi-inhibitory concentration (IC50) treated Vd 991 for 2 and 6 h and inhibited fungal growth mainly by destroying synthesis of the fungal cell membrane and cell wall, inhibiting its DNA replication and transcriptional translation process, blocking its cell cycle, destroying fungal energy and substance metabolism, and disrupting the redox process of fungi. These results directly showed the mechanism by which C17 mycosubtilin antagonizes Vd 991, providing clues for the mechanism of action of lipopeptides and useful information for development of more effective antimicrobials. Full article
(This article belongs to the Special Issue Beneficial Microorganisms for Plants)
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