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- aggregation classification "P1".
- aggregation creator B117691.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2007".
- aggregation format "application/pdf".
- aggregation hasFormat 437414.bibtex.
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- aggregation hasFormat 437414.dc.
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- aggregation hasFormat 437414.doc.
- aggregation hasFormat 437414.json.
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- aggregation isPartOf urn:isbn:9789066055605.
- aggregation isPartOf urn:issn:0567-7572.
- aggregation language "eng".
- aggregation publisher "International Society for Horticultural Science (ISHS)".
- aggregation rights "I have retained and own the full copyright for this publication".
- aggregation subject "Agriculture and Food Sciences".
- aggregation title "Resistance reactions in rose leaves against powdery mildew (Podosphaera pannosa)".
- aggregation abstract "Fungal development of powdery mildew Podosphaera pannosa (Wallr.: Fr.) de Bary (syn. Sphaerotheca pannosa) on rose leaves depends on different resistance mechanisms present in attacked rose genotypes. These mechanisms influence both mycelium formation and sporulation. Two rose species (R. wichuraiana and R. laevigata) and 2 cultivars ('Excelsa' and 'Gomery') were selected to examine microscopically the interaction between fungal development and plant resistance mechanisms. Differences in fungal development and resistance mechanisms were detected in all four rose genotypes. Mycelium formation and sporulation were dependent on the proportion between normal haustoria, abnormal haustoria, papilla formation, physiological responses and intracellular induction of antifungal phenolic compounds (phytoalexins). Two different forms of physiological responses could be observed, with and without cell collapse. Both were induced by H2O2 production of invaded cells, and were very important in limiting the formation of conidiophores. The most important resistance mechanism was, however, the ability to inhibit normal haustorium formation, probably as a constitutive resistance mechanism.".
- aggregation authorList BK302800.
- aggregation endPage "188".
- aggregation startPage "183".
- aggregation volume "751".
- aggregation aggregates 3096062.
- aggregation isDescribedBy 437414.
- aggregation similarTo LU-437414.