Journal article

Publication year: 1997

Pages: 128-137

Journal: Phycologia

Volume number: 36

Issue number: 2

ISSN: 0031-8884

DOI Link: https://doi.org/10.2216/i0031-8884-36-2-128.1

Publisher: Taylor and Francis Group

Abstract: 
In the microthallus of Bryopsis plumosa (Hudson) C. Agardh (Chlorophyta, Bryopsidales) from La Gomera, we show that the secondary nuclei are diploid through most multinucleate stages. Haploid nuclei can be found very late in the development of the microthallus. We conclude from these findings that the formation and multiplication of secondary nuclei is due to mitosis. Therefore, the microthallus is a true sporophyte and not merely an enlarged zygote. Meiosis is probably the last division of the secondary nuclei before zoospore formation. In macrothalli, a direct development of microthalli without prior production and fusion of gametes has been observed. This process is connected to the formation of diploid nuclei. In the Bryopsis strain that we studied, nuclear volume is not directly related to nuclear DNA content.

Harvard Citation style: Brueck, B. and Schnetter, R. (1997) Life history and karyology of Bryopsis plumosa (Chlorophyta, Bryopsidales) from the Canary Islands, Phycologia, 36(2), pp. 128-137. https://doi.org/10.2216/i0031-8884-36-2-128.1

APA Citation style: Brueck, B., & Schnetter, R. (1997). Life history and karyology of Bryopsis plumosa (Chlorophyta, Bryopsidales) from the Canary Islands. Phycologia. 36(2), 128-137. https://doi.org/10.2216/i0031-8884-36-2-128.1