Fusarium pseudograminearum infected wheat lines vary in disease severity and gas exchange response under different watering regimes
Article
Article Title | Fusarium pseudograminearum infected wheat lines vary in disease severity and gas exchange response under different watering regimes |
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ERA Journal ID | 2652 |
Article Category | Article |
Authors | Abdulsada, Rian R., Thompson, Michael, Peitton, Lucas, Kelly, Alison and Percy, Cassandra D. |
Journal Title | Plant Pathology |
Journal Citation | 73 (3), pp. 602-612 |
Number of Pages | 11 |
Year | 2024 |
Publisher | John Wiley & Sons |
Place of Publication | United Kingdom |
ISSN | 0032-0862 |
1365-3059 | |
Digital Object Identifier (DOI) | https://doi.org/10.1111/ppa.13843 |
Web Address (URL) | https://bsppjournals.onlinelibrary.wiley.com/doi/10.1111/ppa.13843 |
Abstract | Crown rot (CR; Fusarium pseudograminearum) is a serious disease in winter cereals. Soil type, temperature, nutrients, water availability and stubble-borne inoculum levels play major roles in determining disease severity. This paper reports the impact of two different watering regimes on the disease severity and gas exchange of F. pseudograminearum infected bread wheat for the first time. Fusarium pseudograminearum inoculated and noninoculated genotypes with different susceptibility to CR were watered to either field capacity or a reduced watering regime in three controlled environment experiments. Rate of photosynthesis, stomatal conductance, internal CO2 concentration and transpiration rate were measured using a portable photosynthesis system, together with disease severity of leaf sheaths at 28 days after planting. Significant differences in disease severity were reported between watering treatments with reduction in CR symptoms in the partially resistant genotypes in the reduced water treatment. Photosynthesis, stomatal conductance and transpiration rate were significantly decreased across most genotypes when inoculated with F. pseudograminearum. Differences in gas exchange between inoculum treatments were more evident in plants watered to field capacity. Water availability has been reported to be one of the crucial factors for initiating F. pseudograminearum infection and subsequent development of CR disease. This research demonstrates significant variation in genotype-related responses to the complex interactions of F. pseudograminearum infection and water treatment, with a negative impact of both limited soil water availability and CR disease severity on plant gas exchange in bread wheat. |
Keywords | bread wheat; crown rot; Fusarium pseudograminearum; photosynthesis; transpiration; water availability |
Related Output | |
Is part of | Physiological investigation of crown rot disease development in wheat (Triticum aestivum) |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300406. Crop and pasture improvement (incl. selection and breeding) |
Public Notes | This article is part of a UniSQ Thesis by publication. See Related Output. |
Byline Affiliations | University of Misan, Iraq |
Centre for Crop Health | |
Grains Research and Development Corporation, Australia | |
Department of Agriculture and Fisheries, Queensland |
https://research.usq.edu.au/item/z78y1/fusarium-pseudograminearum-infected-wheat-lines-vary-in-disease-severity-and-gas-exchange-response-under-different-watering-regimes
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Abdulsada et a (2024) Fusarium pseudograminearum infected wheat lines vary in disease severity and gas_Plant Pathology.pdf | ||
License: CC BY-NC-ND | ||
File access level: Anyone |
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