18 research outputs found
Contribuição para o conhecimento de Chytridiomycota da "Reserva Biológica de Paranapiacaba", Santo André, SP, Brasil
Full text linkIncidência e índice de doença do mosaico do trigo em cereais de inverno e em gramíneas de verão, associados ao Polymyxa graminis
Full text linkThe incidence of Polymyxa betae and other fungal root parasites of sugar-beet in Britain
No full textTerminology and nomenclature of the cytoskeletal elements associated with the flagellar/ciliary apparatus in protists
No full textObservations on swimming pattern and morphology of secondary zoospores of Spongospora subterranea
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Identificative van gerstegeelmozaïekvirus met immuno-elektronenmicroscopie in gerst maar niet in Polymyxa graminis of in Lagena radicicola
No full textThe host range of Polymyxa betae in Britain
No full textThe host range of Polymyxa betae on common arable weed species in Britain was determined by growing plants in naturally infested soil and examining their root systems for the presence of resting spores (cystosori). Of the 24 species tested, only Atriplex patula and Chenopodium album of the Chenopodiaceae, and Silene alba of the Caryophyllaceae, were found to be heavily infected. S. alba is a newly recorded host species for Polymyxa. The host specificity of isolates of P. betae from Beta vulgaris, C. album and A. patula was investigated by observing which of 11 test plants could be infected by the isolates obtained from this soil, Three main biotypes of P. betae appeared to be distinguishable: one which was able to infect all chenopodiaceous species; one which had a narrower host range; and one which was able to infect S. alba. The role of weed species in the epidemiology of rhizomania is discussed
Inoculum potential and host range of Polymyxa betae and beet necrotic yellow vein furovirus
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