Journalartikel

Jahr der Veröffentlichung: 1988

Seiten: 279-287

Zeitschrift: CRYPTOGAMIE ALGOLOGIE

Bandnummer: 9

Heftnummer: 4

ISSN: 0181-1568

eISSN: 1776-0984

Verlag: ADAC-CRYPTOGAMIE

Abstract: 
The formation of biflagellate swarmers (Ernodesmis verticillata (Kutzing) Boergesen, Boodlea composita (Harvey and Hooker) Brand); and quadriflagellate swarmers (Boodlea composita) has been studied under culture conditions. Relative nuclear DNA contents of thalli and swarmers measured after Feulgen staining show that diploid Ernodesmis verticillata and Boodlea composita thalli produce diploid biflagellate zoospores. Germlings derived from these zoospores grow up to thalli corresponding to the starting material in shape and ploidy level. .sbd. In Boodlea composita two types of zoospores are formed by the same thallus. Diploid biflagellate zoospores become released about 1 hour after the beginning of the photoperiod, while haploid quadriflagellate zoospores are set free about 4-5 hours later. Germlings of the haploid quadriflagellate zoospores exhibit only little growth under culture conditions favourable for the diploid life cycle phases.

Harvard-Zitierstil: BODENBENDER, S., KRAUSE, U. and SCHNETTER, R. (1988) NOTES ON LIFE-CYCLES IN COLOMBIAN ISOLATES OF ERNODESMIS AND BOODLEA (SIPHONOCLADALES, CHLOROPHYTA), CRYPTOGAMIE ALGOLOGIE, 9(4), pp. 279-287

APA-Zitierstil: BODENBENDER, S., KRAUSE, U., & SCHNETTER, R. (1988). NOTES ON LIFE-CYCLES IN COLOMBIAN ISOLATES OF ERNODESMIS AND BOODLEA (SIPHONOCLADALES, CHLOROPHYTA). CRYPTOGAMIE ALGOLOGIE. 9(4), 279-287.