Results 171 to 180 of about 3,416 (203)

PARAMYLON SYNTHESIS IN HETEROTROPHIC AND PHOTOHETEROTROPHIC EUGLENA (EUGLENOPHYCEAE)¹

Journal of Phycology, 1980
ABSTRACTGrowth of Euglena gracilis Klebs in medium containing DL‐lactate as sole carbon source results in the synthesis of large quantities of paramylon at the beginning of exponential growth. The accumulation of paramylon grains in the cytoplasm is observable in both dark‐grown and light‐grown cells.
Joel Briand, Regis Calvayrac
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Control of cell shape by calcium in the euglenophyceae

Journal of Cell Science, 1979
ABSTRACT The euglenoid flagellates are able to change their shape rapidly in response to a variety of stimuli, or sometimes spontaneously. Two extremes of shape can be identified: the ‘relaxed’ form is cylindrical; the contracted form is a somewhat distorted disc.
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Microarchitecture and elemental spatial segregation of envelopes ofTrachelomonas lefevrei (Euglenophyceae)

Protoplasma, 1983
Envelopes of the euglenoid flagellate,Trachelomonas lefevrei may range in color from hyaline to golden to dark brown and may be variously ornamented with spines, papillae and puncta. Elemental composition affects both envelope color and microarchitecture, which may be granular and/or microcrystalline.
J. R. Dunlap, Patricia L. Walne, J. Bentley   +2 more
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Redescription of Euglena rustica (Euglenophyceae), a rare euglenophyte from the intertidal zone

Phycologia, 2002
Abstract Euglena rustica, a rare species of Euglena, was discovered growing in patches in the intertidal sand of Nannygoat Beach at the University of Georgia Marine Institute at Sapelo Island, Georgia. A full-emended description is given. The cells are ~ 50 μm long, and the posterior is never attenuate.
Patrick J. P. Brown, Brian S. Leander, Mark A. Farmer   +2 more
exaly   +2 more sources

A REDESCRIPTION OF THE GENUS PLOEOTIA DUJ. (EUGLENOPHYCEAE)

TAXON, 1988
SummaryA colorless euglenoid was isolated from a sample of seawater collected from a New Jersey salt marsh in March 1984. This organism has been continuously maintained in the laboratory for the past three years. Though evidently belonging to a different species, this euglenoid bore remarkable similarities to Serpenomonas costata, previously described ...
Mark A. Fanner, Richard E. Triemer
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HISTOCHEMICAL STUDIES OF THE EXTRACELLULAR CARBOHYDRATE OF COLACIUM MUCRONATUM (EUGLENOPHYCEAE)1

Journal of Phycology, 1977
ABSTRACTThe stalk of Colacium mucronatum Bourr. & Chad. is composed primarily of a cylindrical shaft with a lightly staining inner core and diffuse peripheral cortex. The shaft and cortex arise from a ring‐shaped region around the canal opening whereas the core appears continuous with the canal which may be associated with initial cell attachment ...
Ruth L. Willey, Kathleen Ward, William Russin, Ronald Wibel   +3 more
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[Cyanophyceae, Euglenophyceae, Chlorophyceae, Zygnematophyceae and Charophyceae in Chilean rice paddies]

2000
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Pereira, Iris, Reyes, Guissella, Kramm, Víctor   +2 more
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PROPOSED NEW IDENTIFICATION CHARACTER FOR THE GENUSCOLACIUM(EUGLENOPHYCEAE)¹

Journal of Phycology, 1980
ABSTRACTCells of the genusColaciumEhrenberg can be distinguished with the light microscope from cells of the genusEuglenaEhrenberg by the presence of basophilic granules in the anterior tip of theColaciumcell which are clustered around the canal opening. The granules exhibit a biphasic pattern of osmiophilia in electron micrographs.
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Colour Range of Euglenoids (Euglenophyceae) Blooms

SSRN Electronic Journal, 2023
Konrad M. Wolowski, K Duangjan, T Dempster, P Tsarenko, M Poniewozik   +4 more
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Chapter 5 Cell Attachment Mechanisms in the Flagellate, Colacium (Euglenophyceae)

1986
Publisher Summary This chapter discusses that the general pattern of attachment by cells of Colacium is not unique. The same general steps have been outlined for the association-specific behavior patterns of parasites as well as in part, for zoospore attachment by Characium and the ship-fouling alga, Enteromorpha .
Ruth L. Willey, Jennifer G. Giancarlo
openaire   +1 more source