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Remarkable Plants : the Oedogoniales (Green Algae)

Author: Jeremy D Pickett-Heaps; Cytographics (Firm)
Publisher: [Australia] : Cytographics, ©2004.
Edition/Format:   DVD video : EnglishView all editions and formats
Summary:
The Oedogoniales are a remarkable group of filamentous green algae. Their method of cell elongation after mitosis is unique, seen nowhere else in the plant kingdom; it utilizes a donut-shaped ring of soft wall material which is stretched by turgor pressure into the shape of the new daughter cell. Oedogonium is a simple filament. The related Bulbochaete and Oedocladium are quite different: both are branched and the  Read more...
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Details

Material Type: Videorecording
Document Type: Visual material
All Authors / Contributors: Jeremy D Pickett-Heaps; Cytographics (Firm)
ISBN: 0958608180 9780958608183
OCLC Number: 58974758
Notes: A viewer's guide is available at the Cytographics website: www.cytographics.com/resource/catalog/tapes/vt.html.
Credits: Videomicroscopy, Jeremy Pickett-Heaps ... et al. ; editing and production, Julianne Pickett-Heaps.
Description: 1 videodisc (30 min.) : sound, color ; 4 3/4 in.
Details: DVD.
Other Titles: Oedogoniales
Green Alkae
Responsibility: by Jeremy Pickett-Heaps ; with the assistance of Judy Boyle, Jean Pollock and Tim Spurck.

Abstract:

The Oedogoniales are a remarkable group of filamentous green algae. Their method of cell elongation after mitosis is unique, seen nowhere else in the plant kingdom; it utilizes a donut-shaped ring of soft wall material which is stretched by turgor pressure into the shape of the new daughter cell. Oedogonium is a simple filament. The related Bulbochaete and Oedocladium are quite different: both are branched and the former differentiates numerous long hair cells. The zoospore is a large, multiflagellated cell with an extraordinarily complex flagellar apparatus. Sexual reproduction is oogamous and of two patterns, macrandrous and nannandrous, the latter relying extensively on hormonal interactions to synchronize sexual maturation. Differentiation of oogonia and antheridia is initiated by highly asymmetric cell divisions and fertilization is rapid and efficient. This video is an essential aid for those who teach phycology and will fascinate anyone who is interested in the way "simple" cells live and evolve.

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