Results 171 to 180 of about 8,096 (214)

The zoospore of Olpidium radicale

Transactions of the British Mycological Society, 1978
An ultrastructural study is presented of the unusually large zoospore (c. 8 μm long) of the root-inhabiting uniflagellate Phycomycete, Olpidium radicale Schwartz & Cook (synonyms: Olpidium cucurbitacearum Barr and Pleotrachelus bornovanus Saht.). The study has revealed ultrastructural characters unique to this organism: (1) the axonemal fibres extend ...
L. Lene Lange, Lauritz W. Olson
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Zoospore development in the oomycetes

Fungal Biology Reviews, 2007
Abstract Oomycetes cause destructive diseases on both animals and plants. The epidemic spread of oomycete diseases is primarily based on rapid dispersal from host to host by free swimming zoospores. These single-nucleated spores are formed in sporangia and are only released in aqueous environments.
Claire A. Walker, Pieter van West
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The Zoospore ofOlpidium brassicae

Protoplasma, 1976
The ultrastructure of the zoospore ofOlpidium brassicae is described and compared with observations made of other zoospores of the uniflagellatePhycomycetes. The zoospore ofO. brassicae is characterized by an extensive, cone-shaped rhizoplast and a lack of a nuclear cap, as well as a side-body complex or a rumposome.
Lene Lange, Lauritz W Olson
exaly   +2 more sources

Zoosporic fungi of Oceania. VI. Species with biflagellate zoospores

Mycopathologia et Mycologia Applicata, 1969
Several species of the Plasmodiophoraceae, Olpidiopsidaceae and Lagenidiaceae were isolated on various substrata from the soils of Oceania. Among these were two parasites of rotifer eggs,Lagenidium septatum andMyzocytium fijiensis. The former species is characterized primarily by septation of the thallus into segments which develop into resting spores ...
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Zoospores in Scenedesmus obliquus

Science, 1963
In basal medium without a nitrogen source a 3-day-old culture of Scenedesmus obliquus produced zoospores, which were biflagellated, had a parietal chloroplast, lacked a pyrenoid, and were apparently not walled. Identical results were produced with new clones. A reconsideration of the relationships and classification
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Chemotaxis of Zoospores for Root Exudates

Science, 1961
A chemotactic response of the zoospores of a soil-inhabiting plant pathogenic fungus, Phytophthora cinnamomi, for roots of avocado seedlings was observed. The chemotaxis of the zoospores and chemotropy of their germ tubes were directly related to infection and disease production.
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Zoosporic fungi of Oceania

Archiv f�r Mikrobiologie, 1968
In a further study of the zoosporic fungi of Oceania three new species of Rhizophydium, R. rarotonganensis, R. angulosum, and R. condylosum were isolated on various substrata from soil. Rhizophydium rarotonganensis is a parasite of Nowakowskiella profusa and causes marked local hypertrophy of the rhizomycelium.
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Quantitative methods for the analysis of zoosporic fungi

Journal of Microbiological Methods, 2012
Quantitative estimations of zoosporic fungi in the environment have historically received little attention, primarily due to methodological challenges and their complex life cycles. Conventional methods for quantitative analysis of zoosporic fungi to date have mainly relied on direct observation and baiting techniques, with subsequent fungal ...
Marano, Agostina, Gleason, Frank H., Bärlocher, Felix, Pires-Zottarelli, Carmen L.A, Lilje, Osu, Schmidt, Steve K., Rasconi, Serena, Kagami, Maiko, Barrera, Marcelo D., Sime-Ngando, Télesphore, Boussiba, Sammy, de Souza, José I., Edwards, Joan E.   +12 more
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CHLOROPLAST INCLUSIONS IN ZOOSPORES OF OEDOCLADIUM1

Journal of Phycology, 1974
SUMMARYChloroplast inclusions have been studied in zoospores of Oedocladium carolinianum and their ultrastructure compared with the same inclusions previously described in the related genera Oedogonium and Bulbochaete. Structure of the mature pyrenoids is consistent in all 3 genera; the pyrenoid matrix is penetrated by branched cytoplasmic channels ...
Melvin M. Markowitz, Larry R. Hoffman
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Zoospore Ciliation in the Plasmodiophorales

Nature, 1934
ZOOSPORES of Plasmodiophora brassicae, Woron. and Spongospora subterranea, (Wallroth) Lagerheim have been described in the literature as uniciliate. Examination of active zoospores would appear to substantiate this description. However, when preparations stained by Cotners1 method are used, it can be shown that in addition to the long cilium, so ...
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