Tilletia laevis Kühn (syn. Tilletia foetida (Wallr.) Liro.) causes wheat common bunt, which is one of the most devastating plant diseases in the world. Common bunt can result in a reduction of 80% or even a total loss of wheat production. In this study, the characteristics of T. laevis infection in compatible wheat plants were defined based on the combination of scanning electron microscopy, transmission electron microscopy and laser scanning confocal microscopy. We found T. laevis could lead to the abnormal growth of wheat tissues and cells, such as leakage of chloroplasts, deformities, disordered arrangements of mesophyll cells and also thickening of the cell wall of mesophyll cells in leaf tissue. What's more, T. laevis teliospores were found in the roots, stems, flag leaves, and glumes of infected wheat plants instead of just in the ovaries, as previously reported. The abnormal characteristics caused by T. laevis may be used for early detection of this pathogen instead of molecular markers in addition to providing theoretical insights into T. laevis and wheat interactions for breeding of common bunt resistance.
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| http://dx.doi.org/10.5423/PPJ.OA.05.2021.0082 | DOI Listing |
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Genome sequencing, phylogenomics, and population analyses of , with recognition of one common bunt species, (synonym ), distinct from dwarf bunt, .
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Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, 960 Carling Avenue, Ottawa, Ontario K1A 0C6, Canada.
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- Some species of fungi cause diseases in important crops like wheat and rice, prompting a study that sequenced and analyzed 22 new genomes, focusing on those responsible for dwarf bunt, common bunt, and rice kernel smut.
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