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Preliminary observations on the fine structure of Prasinocladus marinus

Published online by Cambridge University Press:  11 May 2009

M. Parke  and
I. Manton
M. Parke
Affiliation:
The Plymouth Laboratory
I. Manton
Affiliation:
Botany Department, The University, Leeds
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Abstract

The type species of Prasinocladus has been re-investigated in cultured material from the Devon coast and studied electron-microscopically by whole mounts and by sections. Salient findings include: the presence of two layers of scales together with characteristic hairs on all four flagella; the arrangement of the flagellar bases in a row, and of characteristic flagellar ‘roots’; the presence of an unusual condition of the pyrenoid with respect to the nucleus; and the structure and behaviour of the theca as different from that of an ordinary cell wall. It is concluded that the genus could appropriately serve as the type of a group to include all known genera and species of monads containing chlorophyll b that possess scaly flagella, but no recommendations are made as to whether the name Prasinophyceae (Christensen, 1962) should be restricted to these or be permitted to cover other known green flagellates lacking scales on their flagella. This investigation is continuing.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 45 , Issue 2 , June 1965 , pp. 525 - 536
Copyright
Copyright © Marine Biological Association of the United Kingdom 1965

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