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This study provides the first data on the occurrence of the mosaic leafh opper Orientus ishidae (Matsumura, 1902) (Hemiptera: Cicadellidae) in Poland. This species is native to Southeast Asia, adventive in Europe and feeds on cultivated plants. Orientus ishidae is a well-known carrier of Grapevine fl avescence doree phytoplasma which causes the grapevine yellows disease. Symptoms of phytoplasma diseases...
The bacteria from different phylogenetic groups were studied in surface microlayer (SM, up to 100 μm) versus subsurface water (SW – 20 cm) in eutrophic lake from spring to autumn of 2007. Abundance of bacteria was determined using a combination of direct counting of 4’, 6-diamidino-2-phenylindole and the phylogenetic diversity was determined in fluorescence in situ hybridization (FISH) method with...
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