Genetic Diversity and Pathogenic Mechanisms in Plant Pathogenic Bacteria

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Pest and Disease Management".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 469

Special Issue Editor


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Guest Editor
College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
Interests: the development and utilization of new targets for green prevention and control of plant bacterial diseases
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Special Issue Information

Dear Colleagues,

Food security is a fundamental issue of global concern and an eternal topic. However, as one of the most important plant diseases, plant bacterial diseases seriously harm and threaten the safety, quality, and yield of global plant production, resulting in huge economic losses. Exploring the genetic diversity of plant pathogenic bacteria and revealing their pathogenic mechanisms can help us identify new control targets and then develop new chemical pesticides or biological pesticides, laying a theoretical foundation for the comprehensive prevention and control of the outbreak and epidemic of these diseases.

The purpose of this Special Issue is to collect the latest scientific advances related to the genetic diversity and pathogenic mechanisms of plant pathogenic bacteria and the discovery of new targets for control.

The following four aspects should be included:

(1) Investigation and analysis of pathogen bacterial diversity of crop bacterial diseases in the field, that is, population genetic analysis;

(2) Diversity and pathogenic mechanisms of bacterial diseases in horticultural crops;

(3) Prediction and design of new control targets for plant and bacterial diseases based on structural biology-based structural modeling or molecular docking technologies and platforms;

(4) The basis and application of new cutting-edge technologies based on genetic diversity and new pathogenic mechanisms in the isolation and detection of pathogenic bacteria;

(5) The design and development of inhibitors targeted main pathogenic systems, such as the type III secretory system and quorum sensing system.

Dr. Xiaolong Shao
Guest Editor

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Keywords

  • genetic diversity
  • population genetic analysis
  • structural modeling or molecular docking
  • type III secretion system
  • quorum sensing system
  • c-di-GMP

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Published Papers (1 paper)

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Research

21 pages, 9035 KiB  
Article
Identification of Elite Agronomic Traits Using Chromosome Arm Substitution Lines of Triticum dicoccoides in the Background of Common Wheat
by Yanhao Zhao, Xiaofen Wei, Yurong Jiang, Xin Hu and Junkang Rong
Agronomy 2025, 15(3), 752; https://doi.org/10.3390/agronomy15030752 - 20 Mar 2025
Viewed by 141
Abstract
To effectively mine and utilize the valuable genes of wild emmer wheat (Triticum dicoccoides, 2n = 4x = 28, AABB), this study conducted an investigation of agronomic traits using two sets of chromosome arm substitution lines (CASLs) of wild emmer wheat [...] Read more.
To effectively mine and utilize the valuable genes of wild emmer wheat (Triticum dicoccoides, 2n = 4x = 28, AABB), this study conducted an investigation of agronomic traits using two sets of chromosome arm substitution lines (CASLs) of wild emmer wheat in the backgrounds of the common wheat varieties Bethlehem (BLH) and Chinese Spring (CS). The results indicated significant differences in growth parameters, including seedling agronomic traits, heading date (HD), and yield traits among the various CASLs in both the BLH and CS backgrounds. In both genetic backgrounds, the number of tillers in CASL7BS was significantly fewer than that of the parents. Additionally, the average leaf width of six CASLs (2BS, 1AL, 7AL, 5BS, 4AS, and 2BL) was significantly narrower compared to the parents. Among CASLs in the CS background, CASL2BS exhibited a significantly narrower average leaf width and shorter average plant height compared to both the parents and early-maturing CASLs. Conversely, CASL4AL exhibited significantly more tillers and a shorter average plant height than the other CASLs. In the BLH background, the spike phenotypes of all CASLs showed no significant differences from BLH. However, in the CS background, CASL6AS and CASL5AL demonstrated significantly longer spike lengths than CS. Moreover, CASL6BL had more spikelets per spike than CS. CASLs 4AS, 4AL, 6BS, and 6BL exhibited basal short awns and apical long awns, whereas the remaining CASLs displayed no awns, a pattern consistent with CS. We hypothesize that genes governing physiological traits such as seedling tiller number, leaf width, plant height, and spike traits are likely located on the corresponding chromosome arms. Full article
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