Results 131 to 140 of about 13,407 (172)

Fine structure ofCylindrocapsa zoospores

Protoplasma, 1976
Quadriflagellate zoospores from an isolate ofCylindrocapsa geminella have been studied ultrastructurally. Each swimming zoospore is enclosed within a delicate, loose-fitting, outer investment which in grazing tangential section exhibits a pattern resembling wire gauze.
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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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Vertical distribution of kelp zoospores

Phycologia, 2011
Abstract Cie D.K. and Edwards M.S. 2011. Vertical distribution of kelp zoospores. Phycologia 50: 340–350. DOI: 10.2216/10-48.1 The widely accepted theory of kelp propagule dispersal is that reproductive zoospores are released near the benthos and passively dispersed horizontally via advective and diffusive transport.
Damien K Cie, Matthew S. Edwards
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Green matter, zoospores, and diatoms

2023
Abstract The gravest risks to a sharp plant-animal dichotomy arose at the interface between infusoria and algae. This chapter treats four case studies: the “green matter” debate initiated by Priestley in the 1770s; the recognition of motile “zoospores” after 1803; experiments on algal metamorphosis from the 1810s through the 1840s; and ...
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Structure of Labyrinthula sp. Zoospores*

The Journal of Protozoology, 1968
SYNOPSIS. A species of Labyrinthula closely resembling L. algeriensis was isolated from marsh grass, Spartina alterniflora. Zoosporulation was obtained in ∼50% of the cultures, which were grown on a modified Vishniac medium, when yeasts were used as food organisms; when the temperature was ∼22 C; when thiamine (0.2 mg/l, biotin (1 μg/l, Ba (1 μg/l ...
JAMES P. AMON, FRANK O. PERKINS
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Zoospore discharge in Thraustochytrium striatum

Transactions of the British Mycological Society, 1974
The development of the sporangial wall in Thraustochytrium striatum Schneider has been studied by light, scanning and transmission electron microscopy. The wall is multilamellate and fragments at maturity to release the zoospores. Use of the term deliquescence to describe wall behaviour at spore release is shown to be incorrect and the term ...
J.L. Harrison, E.B. Gareth Jones
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Reproduction by zoospores inOedogonium

Protoplasma, 1972
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Zoospore production in Pythium spinosum

Mycological Research, 1993
When exposed to a non-sterile soil extract and light, six South African isolates of Pythium spinosum and two isolates from culture collections produced zoospores, a process which has not been reported for this species. Autoclaved and filter-sterilized soil extract, as well as a defined salt solution, failed to induce sporangial formation.
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The Zoospores of Chroolepus, Ag*

Journal of Cell Science
ABSTRACT The first of the plants to which the observations refer is Chroolepus aureum, Spr. var. tomentosum, Kg. Under the microscope, the plant is seen to be formed of erect threads, intermixed with branched threads, each consisting of a single row of cells. The walls are colourless, but with a glittering appearance. (Pl. IX, fig. 1, s.)
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Fatal attraction: How Phytophthora zoospores find their host

Seminars in Cell and Developmental Biology, 2023
Michiel Kasteel, Tijs Ketelaar, Francine Govers   +2 more
exaly