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Life
Special Issues
Identification, Pathogenicity and Molecular Characterization of Rhizoctonia spp.
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Identification, Pathogenicity and Molecular Characterization of Rhizoctonia spp.

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: closed (16 February 2024) | Viewed by 950

Special Issue Editors

Dr. Genhua Yang

E-Mail Website
Guest Editor
Colleague of Plant Protection, Yunnan Agriculture University, Kunming, China
Interests: phytomycology
Prof. Dr. Baruch Sneh

E-Mail Website
Guest Editor
Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Tel Aviv-Yafo, Israel
Interests: biological control of plant pathogens; hypovirulent rhizoctonia spp.; biological control of insects; bacillus thuringiensis
Dr. Michal Sharon-Cohen

E-Mail
Guest Editor
Agricultural Research and Development, Central Mountain Region, P.O. Box 104, Tekoa 90908, Israel
Interests: plant microbiology

Special Issue Information

Dear Colleagues,

Rhizoctonia are extremely important phytopathogens that cause devastating plant diseases. The genus comprises a complex of genetically distinct species and anastomosis groups (AGs), with a wide host range or virulence preference for specific hosts. Accurate species identification provides the theoretical basis for effective disease control. However, the genomic complexity, diversification into the AGs and the evolution of pathogenicity-associated genes remain poorly understood.

This Special Issue aims to provide an overview of the most recent advances in the field of Rhizoctonia spp., with contributions addressing advances in the identification of this species, their pathogenicities, and molecular characterization. Meanwhile, research or reviews focusing on the molecular mechanism of resistance, the pathogenic mechanism, the resistant mechanism of plants, mycoviruses, and the biocontrol agents employed to control diseases with regard to Rhizoctonia spp. are encouraged.

Dr. Genhua Yang
Prof. Dr. Baruch Sneh
Dr. Michal Sharon-Cohen
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. Life 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 2600 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

  • Rhizoctonia
  • mycoviruses
  • species identification
  • pathogenic mechanism

Published Papers (1 paper)

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Research

17 pages, 2889 KiB  
Article
Effects of Chemical and Biological Fungicide Applications on Sexual Sporulation of Rhizoctonia solani AG-3 TB on Tobacco
by Yingmei Yang, Jie Zhang, Jiduo Yan, Lianjin Zhao, Li Luo, Chengyun Li and Genhua Yang
Life 2024, 14(3), 404; https://doi.org/10.3390/life14030404 - 18 Mar 2024
Viewed by 785
Abstract
Rhizoctonia solani AG-3 TB primarily causes tobacco target spot disease by producing a large number of sexual spores. However, inducing sexual spore formation under in vitro conditions has been challenging, impeding further research on its control. In this study, field experiments were conducted [...] Read more.
Rhizoctonia solani AG-3 TB primarily causes tobacco target spot disease by producing a large number of sexual spores. However, inducing sexual spore formation under in vitro conditions has been challenging, impeding further research on its control. In this study, field experiments were conducted to assess the effects of different concentrations of chemical and biological fungicides on the production of sexual spores of R. solani AG-3 TB on tobacco plants. The results demonstrated that four chemical fungicides (propiconazole-morpholine guanidine, bordeaux mixture, thiophanate-methyl, and mancozeb) significantly induced sexual spore formation. Among them, increasing the concentrations of the first three fungicides resulted in an increase in the number of sexual spores, while increasing the concentration of mancozeb led to a decrease in spore count. The pathogenic fungus produced more sexual spores during the night than during the day. Temperature, humidity, and light conditions influenced spore production. Additionally, the infection rate of sexual spores was directly proportional to their concentration and inoculation time, but their survival time did not exceed 6 h in vitro. Importantly, Streptomyces rectiolaceus A8 significantly suppressed sexual spore formation, achieving an 83.63% control efficacy in the field and producing antimicrobial substances against R. solani AG-3 TB. In conclusion, appropriate concentrations of chemical fungicides can induce sexual spore formation, while A8 can inhibit their production, showing potential value for controlling tobacco target spot disease. Full article
(This article belongs to the Special Issue Identification, Pathogenicity and Molecular Characterization of Rhizoctonia spp.)
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