ISSN:
1615-6102
Keywords:
Closterium
;
Dictyosome
;
Germination
;
Zygospore
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Numerical and structural changes in dictyosomes during the germination of zygospores inClosterium ehrenbergii were examined by electron microscopy. In the dormant mature zygospores, two parallel cisternac were seen which were derived from the disorganization of dictyosomes during the maturation of zygospores. After the induction of germination, the two parallel cisternae developed into dictyosomes with ten or eleven cisternae. The dictyosomes doubled in number by division every day for four days and reached, at the time of germination, a density of distribution similar to that found in the youngest zygospore. On the 4th day after the induction of germination, dictyosomes produced two kinds of vesicles which appear to be involved in the formation of new cell wall layers. The germination of the zygospore was effected by the escape of the cell covered with the new cell wall layers through the broken old cell wall layers.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01403341
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