DEEP-ETCH ANALYSIS OF ADHESION COMPLEXES BETWEEN GAMETIC FLAGELLAR MEMBRANES OF CHLAMYDOMONAS REINHARDTII (CHLOROPHYCEAE) |
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| Authors: | Ursula W. Goodenough John E. Heuser |
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| Affiliation: | Department of Biology, Washington University, St. Louis, Missouri 63130; Department of Cell Biology, Washington University School of Medicine, St. Louis, Missouri 63110 |
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| Abstract: | The ultrastructure of adhesion complexes between gametic flagellar membranes of Chlamydomonas reinhardtii Dangeard was analyzed using the quick-freeze deep-etch technique. The sexual agglutinin fibrils interact by forming hybrid fibers that frequently branch, forming extensively cross-bridged meshworks. This pattern of interaction mimics a prominent mode of cell wall formation in Chlamydomonas, supporting the notion that the agglutinins evolved from cell wall proteins and that sexual adhesion and cell wall assembly are homologous events. |
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| Keywords: | Agglutinin Chlamydomonas gamete mating mating type sex |
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