Rust-proofing wheat for a changing climate

Chakraborty, Sukumar, Luck, Jo, Hollaway, Grant, Fitzgerald, Glenn and White, Neil (2011) Rust-proofing wheat for a changing climate. Euphytica, 179 1: 19-32. doi:10.1007/s10681-010-0324-7


Author Chakraborty, Sukumar
Luck, Jo
Hollaway, Grant
Fitzgerald, Glenn
White, Neil
Title Rust-proofing wheat for a changing climate
Journal name Euphytica   Check publisher's open access policy
ISSN 0014-2336
1573-5060
Publication date 2011-05
Year available 2010
Sub-type Article (original research)
DOI 10.1007/s10681-010-0324-7
Open Access Status Not yet assessed
Volume 179
Issue 1
Start page 19
End page 32
Total pages 14
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Formatted abstract
This paper offers projections of potential effects of climate change on rusts of wheat and how we should factor in a changing climate when planning for the future management of these diseases. Even though the rusts of wheat have been extensively studied internationally, there is a paucity of information on the likely effects of a changing climate on the rusts and their influence on wheat production. Due to the lack of published empirical research we relied on the few published studies of other plant diseases, our own unpublished work and relevant information from the vast literature on rusts of wheat to prepare this overview. Three broad areas of potential risks from a changing climate were described: increased loss from wheat rusts, new rust pathotypes evolving faster and the reduced effectiveness of rust resistances. Increased biomass of wheat crops grown in the presence of elevated CO2 concentrations and higher temperatures will increase the leaf area available for attack by the pathogen leading to increased inoculum production. If changed weather conditions were to accelerate the life cycle of a pathogen, the increased inoculum can lead to severe rust epidemics in many environments. Likewise should the effects of climate change result in more conducive conditions for rust development there will also be a corresponding increase in the rate of evolution of new pathotypes which could increase the rate of appearance of new virulences. The effectiveness of some rust resistance genes is influenced by temperature and crop development stage. Climate change may directly or indirectly influence the effectiveness of some resistance genes but this can not be ascertained due to a complete lack of knowledge. Since disease resistance breeding is a long term strategy it is important to determine if any of the important genes may become less effective due to climate change. Studies must be made to acquire new information on the rust disease triangle to increase the adaptive capacity of wheat under climate change. Leadership within the Borlaug Global Rust Initiative (BGRI) is needed to broker research on rust evolution and the durability of resistance under climate change.
Keyword Borlaug global rust initiative
Climate change
Elevated CO2
Epidemiology
Evolution of virulence
Rust resistance
Wheat rust
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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Citation counts: TR Web of Science Citation Count  Cited 17 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 19 times in Scopus Article | Citations
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