Attachment and adhesion of conidia of Stagonospora nodorum to natural and artificial surfaces |
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| Authors: | E Zelinger CR Hawes SJ Gurr FM Dewey |
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| Institution: | aResearch School of Life Sciences, Oxford Brookes University, Gipsy Lane Campus, Headington, Oxford OX3 0BP, UK;bDepartment of Plant Sciences, University of Oxford, South Park Road, Oxford OX1 3RB, UK |
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| Abstract: | Attachment and adhesion of conidia of a wheat-isolate of Stagonospora nodorum to leaf and artificial surfaces was studied. Attachment of conidia was a non-viable process, separate from adhesion, that occurred rapidly and irreversibly. Attachment involved conidial-surface carbohydrates and was partially influenced by surface hydrophobicity. The subsequent adhesion, via the secretion of extracellular matrix from conidia, was a viable process that induced the complete cover of conidia in response to wheat leaf surface components containing epi-cuticular wax and to a lesser extent to barley but inducing only partial covering on glass. Results suggest that specific surface components from the compatible host promote rapid attachment and adhesion of S. nodorum conidia. |
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| Keywords: | Stagonospora nodorum Wheat Barley Leaves Conidia Attachment Adhesion Hydrophobicity Hydrophilicity Cuticular wax |
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