11 research outputs found
Studies on the genetic diversity of primary and secondary infections of Plasmopara viticola using RAPD/PCR
No full textIn 1998 and 1999 isolates from primary and secondary infections of Plasmopara viticola (downy mildew) were sampled from several grapevine varieties. Fungal isolates were taken from the same vineyard located in Wurttemberg/Germany. Using the random amplified polymorphic DNA (RAPD) technique as an initial screening for genetic variation within P. viticola isolates, different molecular fingerprint patterns were obtained. Out of 48 isolates of primary infections 27 (1998) and 29 (1999) different genotypes were found. In contrast, variability of secondary infections was lower: about 9 in 1998 and 14 in 1999 different genotypes out of 48 isolates. The high genotype diversity in primary infections and the low level of genotype diversity in secondary infections strongly suggests environmentally directed selection
Differences in zoospore germination and host penetration in response to temperature among Western Australian isolates of Plasmopara viticola
No full textEfficacy of copper alternatives applied as stop-sprays against Plasmopara viticola in grapevine
No full textPopulation genetic structure of Plasmopara viticola in the Western Cape Province of South Africa
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Correlation of bois noir disease with nettle and vector abundance in northern Italy vineyards
No full textSequential deposition of plant glycoproteins and polysaccharides at the host-parasite interface ofUromyces vignae andVigna sinensis
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