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THE STRUCTURE OF THE SPORES OF GIGASPORA MARGARITA

THE STRUCTURE OF THE SPORES OF GIGASPORA MARGARITA Light and electron microscopy have been used to study the emergence through the spore wall and subsequent growth and development of the germ‐tube of Gigaspora margarita. Spore‐wall penetration by the germ‐tube is unusual as two different mechanisms seem to be operating, one for the inner spore‐wall layers and another for the outer layer. As the germ‐tube develops a primary wall layer is formed, and this can be traced back to its origin as a layer continuous with the thickened region of the innermost spore‐wall layer. In the maturing germ‐tube a highly osmiophilic secondary wall is deposited and this may be the wall layer that persists when the fungus penetrates a host root and sets up a mycorrhizal association. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png New Phytologist Wiley

THE STRUCTURE OF THE SPORES OF GIGASPORA MARGARITA

SWARD, R. J.
New Phytologist , Volume 88 (4) – Jan 1, 1981
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References (24)

Publisher
Wiley
Copyright
Copyright © 1981 Wiley Subscription Services
ISSN
0028-646X
eISSN
1469-8137
DOI
10.1111/j.1469-8137.1981.tb01743.x
Publisher site
See Article on Publisher Site

Abstract

Light and electron microscopy have been used to study the emergence through the spore wall and subsequent growth and development of the germ‐tube of Gigaspora margarita. Spore‐wall penetration by the germ‐tube is unusual as two different mechanisms seem to be operating, one for the inner spore‐wall layers and another for the outer layer. As the germ‐tube develops a primary wall layer is formed, and this can be traced back to its origin as a layer continuous with the thickened region of the innermost spore‐wall layer. In the maturing germ‐tube a highly osmiophilic secondary wall is deposited and this may be the wall layer that persists when the fungus penetrates a host root and sets up a mycorrhizal association.

Journal

New Phytologist – Wiley

Published: Jan 1, 1981

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