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Insecticides Exposure, Mode of Action and Their Effects: Molecular Perspective...
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Insecticides Exposure, Mode of Action and Their Effects: Molecular Perspective of Plant Protection

A special issue of Current Issues in Molecular Biology (ISSN 1467-3045). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2325

Special Issue Editor

Dr. Xuegui Wang

E-Mail Website
Guest Editor
1. College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
2. State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
Interests: insecticide resistance; plant protection; insect molecular toxicology; resistance management; key genes associated with insecticide resistance

Special Issue Information

Dear Colleagues,

This Special Issue aims to improve the control effect of crop diseases, pests, and weeds and lay a foundation for pesticide reduction and control. It will include, but will not be limited to, the physiological, biochemical, and developmental changes and the growth of crop diseases, pests, and weeds under pesticide stress; the exploration of the resistance mechanisms of crop diseases, pests, and weeds to pesticides; strategies for crop diseases, pests, and weeds in response to pesticide stress, such as increased detoxification and metabolic capacity, changes in reactive oxygen species, or the reconstruction of their symbiotic bacteria; and the study of the comprehensive prevention and control of crop diseases, pests, and weeds.

Dr. Xuegui Wang
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. Current Issues in Molecular Biology 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 2200 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

  • pesticide
  • crop diseases, pests and weeds
  • resistance mechanism
  • detoxification and metabolic
  • symbiotic bacteria

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Published Papers (1 paper)

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Research

12 pages, 1708 KiB  
Article
Characterization of a Bacillus subtilis S-16 Thiazole-Synthesis-Related Gene thiS Knockout and Antimicrobial Activity Analysis
by Jinghan Hu, Zhenhe Su, Baozhu Dong, Dong Wang, Xiaomeng Liu, Huanwen Meng, Qinggang Guo and Hongyou Zhou
Curr. Issues Mol. Biol. 2023, 45(6), 4600-4611; https://doi.org/10.3390/cimb45060292 - 26 May 2023
Cited by 1 | Viewed by 1948
Abstract
Bacillus subtilis S-16 isolated from sunflower-rhizosphere soil is an effective biocontrol agent for preventing soilborne diseases in plants. Previous research revealed that the volatile organic compounds (VOCs) produced by the S-16 strain have strong inhibitory effects on Sclerotinia sclerotiorum. The identification of [...] Read more.
Bacillus subtilis S-16 isolated from sunflower-rhizosphere soil is an effective biocontrol agent for preventing soilborne diseases in plants. Previous research revealed that the volatile organic compounds (VOCs) produced by the S-16 strain have strong inhibitory effects on Sclerotinia sclerotiorum. The identification of the VOCs of S-16 using gas chromatography-tandem mass spectrometry (GC-MS/MS) revealed 35 compounds. Technical-grade formulations of four of these compounds were chosen for further study: 2-pentadecanone, 6,10,14-trimethyl-2-octanone, 2-methyl benzothiazole (2-MBTH), and heptadecane. The major constituent, 2-MBTH, plays an important role in the antifungal activity of the VOCs of S-16 against the growth of Sclerotinia sclerotiorum. The purpose of this study was to determine the impact of the thiS gene’s deletion on the 2-MBTH production and to conduct an antimicrobial activity analysis of the Bacillus subtilis S-16. The thiazole-biosynthesis gene was deleted via homologous recombination, after which the contents of 2-MBTH in the wild-type and mutant S-16 strains were analyzed using GC-MS. The antifungal effects of the VOCs were determined using a dual-culture technique. The morphological characteristics of the Sclerotinia sclerotiorum mycelia were examined via scanning-electron microscopy (SEM). Additionally, the lesion areas on the sunflower leaves with and without treatment with the VOCs from the wild-type and mutant strains were measured to explore the effects of the VOCs on the virulence of the Sclerotinia sclerotiorum. Moreover, the effects of the VOCs on the sclerotial production were assessed. We showed that the mutant strain produced less 2-MBTH. The ability of the VOCs produced by the mutant strain to inhibit the growth of the mycelia was also reduced. The SEM observation showed that the VOCs released by the mutant strain also caused more flaccid and gapped hyphae in the Sclerotinia sclerotiorum. The Sclerotinia sclerotiorum treated by the VOCs produced by the mutant strains caused more damage to the leaves than that treated by the VOCs produced by the wild type and the mutant-strain-produced VOCs inhibited sclerotia formation less. The production of 2-MBTH and its antimicrobial activities were adversely affected to varying degrees by the deletion of thiS. Full article
(This article belongs to the Special Issue Insecticides Exposure, Mode of Action and Their Effects: Molecular Perspective of Plant Protection)
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