Factors determining results of competition between physiologic races of Puccinia hordei
Identifieur interne : 001C49 ( Main/Exploration ); précédent : 001C48; suivant : 001C50Factors determining results of competition between physiologic races of Puccinia hordei
Auteurs : M. Falahati-Rastegar [Royaume-Uni] ; J. G. Manners [Royaume-Uni] ; J. Smartt [Royaume-Uni]Source :
- Transactions of the British Mycological Society [ 0007-1536 ] ; 1983.
English descriptors
- Teeft :
- Appressoria, Appressorium, Appressorium formation, Appropriate temperature, Brown shipton, Canadian journal, Competition experiments, Cultivar, Different periods, Different races, Early stages, Environmental factors, First seedling, Flag leaf, Germinated spores, Germinating spores, Germination, Germination level, Growth cabinet, Heavy infection, Hordei, Hordei races table, Hypha, Infection, Infection hyphae, Infection process, Inoculated, Inoculation, Latent period, Leaf area, Light infection, Mature plants, Middle segments, Mycelial spread, Optimum density, Optimum temperature, Other cultivars, Other races, Percentage urediniospore germination, Physiologic races, Primary leaf, Puccinia, Puccinia hordei, Puccinia striiformis, Pustule, Pustule development, Pustule size, Seedling, Significant differences, Simkin wheeler, Spore, Spore germination, Spore production, Stoma, Striiformis, Substomatal vesicles, Vesicle, Zephyr.
Abstract
Factors affecting the pre-penetration, penetration, post-penetration, pustule development and spore production stages of the growth of Puccinia hordei on barley were studied, with the object of elucidating the mechanisms controlling competition between physiologic races of the pathogen. The rates of spore germination, appressorium formation and penetration were affected differentially by temperature in different races and on different hosts. After application of a heavy inoculum, the race germinating rapidly under the prevailing environmental conditions predominated, possibly due to succeeding in competition for stomatal entry. When the inoculum level was low, the race with the higher spore viability, the greatest pustule size and the higher spore production per pustule predominated.
Url:
DOI: 10.1016/S0007-1536(83)80074-6
Affiliations:
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Le document en format XML
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Falahati-Rastegar</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Biology, The University, Southampton SO9 5NH</wicri:regionArea><wicri:noRegion>Southampton SO9 5NH</wicri:noRegion></affiliation></author><author><name sortKey="Manners, J G" sort="Manners, J G" uniqKey="Manners J" first="J. G." last="Manners">J. G. Manners</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Biology, The University, Southampton SO9 5NH</wicri:regionArea><wicri:noRegion>Southampton SO9 5NH</wicri:noRegion></affiliation></author><author><name sortKey="Smartt, J" sort="Smartt, J" uniqKey="Smartt J" first="J." last="Smartt">J. Smartt</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Biology, The University, Southampton SO9 5NH</wicri:regionArea><wicri:noRegion>Southampton SO9 5NH</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Transactions of the British Mycological Society</title><title level="j" type="abbrev">MYRETR</title><idno type="ISSN">0007-1536</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1983">1983</date><biblScope unit="volume">81</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="233">233</biblScope><biblScope unit="page" to="239">239</biblScope></imprint><idno type="ISSN">0007-1536</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0007-1536</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Appressoria</term><term>Appressorium</term><term>Appressorium formation</term><term>Appropriate temperature</term><term>Brown shipton</term><term>Canadian journal</term><term>Competition experiments</term><term>Cultivar</term><term>Different periods</term><term>Different races</term><term>Early stages</term><term>Environmental factors</term><term>First seedling</term><term>Flag leaf</term><term>Germinated spores</term><term>Germinating spores</term><term>Germination</term><term>Germination level</term><term>Growth cabinet</term><term>Heavy infection</term><term>Hordei</term><term>Hordei races table</term><term>Hypha</term><term>Infection</term><term>Infection hyphae</term><term>Infection process</term><term>Inoculated</term><term>Inoculation</term><term>Latent period</term><term>Leaf area</term><term>Light infection</term><term>Mature plants</term><term>Middle segments</term><term>Mycelial spread</term><term>Optimum density</term><term>Optimum temperature</term><term>Other cultivars</term><term>Other races</term><term>Percentage urediniospore germination</term><term>Physiologic races</term><term>Primary leaf</term><term>Puccinia</term><term>Puccinia hordei</term><term>Puccinia striiformis</term><term>Pustule</term><term>Pustule development</term><term>Pustule size</term><term>Seedling</term><term>Significant differences</term><term>Simkin wheeler</term><term>Spore</term><term>Spore germination</term><term>Spore production</term><term>Stoma</term><term>Striiformis</term><term>Substomatal vesicles</term><term>Vesicle</term><term>Zephyr</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Factors affecting the pre-penetration, penetration, post-penetration, pustule development and spore production stages of the growth of Puccinia hordei on barley were studied, with the object of elucidating the mechanisms controlling competition between physiologic races of the pathogen. The rates of spore germination, appressorium formation and penetration were affected differentially by temperature in different races and on different hosts. After application of a heavy inoculum, the race germinating rapidly under the prevailing environmental conditions predominated, possibly due to succeeding in competition for stomatal entry. When the inoculum level was low, the race with the higher spore viability, the greatest pustule size and the higher spore production per pustule predominated.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Falahati Rastegar, M" sort="Falahati Rastegar, M" uniqKey="Falahati Rastegar M" first="M." last="Falahati-Rastegar">M. Falahati-Rastegar</name></noRegion><name sortKey="Manners, J G" sort="Manners, J G" uniqKey="Manners J" first="J. G." last="Manners">J. G. Manners</name><name sortKey="Smartt, J" sort="Smartt, J" uniqKey="Smartt J" first="J." last="Smartt">J. Smartt</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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