ISSN:
1573-5117
Keywords:
Pandorina
;
Eudorina
;
identification problems
;
life cycles
;
culture experiments
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Traditionally, the volvocacean genera Pandorina and Eudorina are distinguished by vegetative morphology: Eudorina has hollow coenobia with loosely arranged spherical to ovoid cells, whereas Pandorina coenobia are compact with pear- to keystoneshaped cells contiguous in the centre. However, sometimes intermediate forms are found which cannot be identified to genus by traditional morphological characters. Especially the degree of compactness of Pandorina coenobia may be highly variable. Such abberant forms must be taken into culture in order to establish their identity, by studying (1) their life cycles, both sexual and asexual processes, and (2) the influence of varied culture conditions (temperature, daylenght, nutrients) on their morphology. In these ways, the taxonomic position may be clarified.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1017002027319
