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The ultrastructure of the vegetative cell of the centric diatom Anaulus creticus Drebes & Schulz is described. Exhibiting the organic wall component (diatotepum) separated from the siliceous parts of the cell wall this species belongs to the diatom group with so-called split-walls [17]. A most interesting feature of the Anaulus cell is the horn region and its internal structure. As there is no silicified sieve-plate at the horn top but just a big hole sealed only by a thin diatotepum with a hexagonal meshwork, this wall structure is termed a "reduced ocellus". The inner part of the horn region is largely occupied by a conspicuous protoplasmic plug of proteinaceous nature. The possible function of this peculiar structure is discussed as well as new ideas about the role of the labiate process are provided.
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
January 1990,
Zeitschrift fur mikroskopisch-anatomische Forschung,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
January 1975,
Nihon saikingaku zasshi. Japanese journal of bacteriology,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
August 1981,
Archives of pathology & laboratory medicine,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
March 1981,
Acta pathologica et microbiologica Scandinavica. Section A, Pathology,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
October 1974,
Rinsho byori. The Japanese journal of clinical pathology,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
January 1982,
Gan no rinsho. Japan journal of cancer clinics,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
August 1969,
The Journal of bone and joint surgery. British volume,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
November 1972,
The Journal of protozoology,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
January 1978,
The American journal of anatomy,
D Schulz, and
G Drebes, and
H Lehmann, and
R Jank-Ladwig
September 1984,
Acta pathologica japonica,
