When Wheat Meets Fusarium Head Blight and Leaf Rust

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1161

Special Issue Editor

Department of Agronomy, Kansas State University, Manhattan, KS 66506-5502, USA
Interests: plant molecular biology; crop genetics and breeding; plant disease resistance; plant genome editing

Special Issue Information

Dear Colleagues,

Wheat production worldwide is under significant threat from two devastating fungal diseases: Fusarium head blight (FHB) and leaf rust. FHB is caused by several species of Fusarium fungi, with F. graminearum being the most common and destructive species. During the flowering stage, FHB infects plants, leading to significant yield losses and quality reductions in wheat. It also produces mycotoxins harmful to human and animal health. Leaf rust, on the other hand, attacks the leaves, reducing photosynthetic efficiency and causing yield losses. Effective management of FHB and leaf rust in wheat requires a multidisciplinary approach that integrates genetic, genomic, and cultural strategies.

This Special Issue of Plants will highlight the latest research efforts in this field. It aims to present new discoveries and innovative solutions that can help in controlling FHB and leaf rust and, ultimately, improve wheat production and quality.

Dr. Hui Chen
Guest Editor

Manuscript Submission Information

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Keywords

  • Fusarium head blight
  • leaf rust
  • QTL mapping
  • genomic selection
  • host/fungus interactions

Published Papers (1 paper)

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Research

15 pages, 2572 KiB  
Article
Elevated CO2 Can Worsen Fusarium Head Blight Disease Severity in Wheat but the Fhb1 QTL Provides Reliable Disease Resistance
by William T. Hay, James A. Anderson, David F. Garvin, Susan P. McCormick, Mark Busman and Martha M. Vaughan
Plants 2023, 12(20), 3527; https://doi.org/10.3390/plants12203527 - 11 Oct 2023
Viewed by 956
Abstract
Fusarium head blight (FHB) is a destructive fungal disease of wheat that causes significant economic loss due to lower yields and the contamination of grain with fungal toxins (mycotoxins), particularly deoxynivalenol (DON). FHB disease spread and mycotoxin contamination has been shown to worsen [...] Read more.
Fusarium head blight (FHB) is a destructive fungal disease of wheat that causes significant economic loss due to lower yields and the contamination of grain with fungal toxins (mycotoxins), particularly deoxynivalenol (DON). FHB disease spread and mycotoxin contamination has been shown to worsen at elevated CO2, therefore, it is important to identify climate-resilient FHB resistance. This work evaluates whether wheat with the Fhb1 quantitative trait locus (QTL), the most widely deployed FHB resistance locus in wheat breeding programs, provides reliable disease resistance at elevated CO2. Near-isogenic wheat lines (NILs) derived from either a highly FHB susceptible or a more FHB resistant genetic background, with or without the Fhb1 QTL, were grown in growth chambers at ambient (400 ppm) and elevated (1000 ppm) CO2 conditions. Wheat was inoculated with Fusarium graminearum and evaluated for FHB severity. At elevated CO2, the NILs derived from more FHB-resistant wheat had increased disease spread, greater pathogen biomass and mycotoxin contamination, and lower rates of DON detoxification; this was not observed in wheat from a FHB susceptible genetic background. The Fhb1 QTL was not associated with increased disease severity in wheat grown at elevated CO2 and provided reliable disease resistance. Full article
(This article belongs to the Special Issue When Wheat Meets Fusarium Head Blight and Leaf Rust)
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