Communicating editon: H. Kawai.
Selective disappearance of maternal centrioles after fertilization in the anisogamous brown alga Cutleria cylindrica (Cutleriales, Phaeophyceae): Paternal inheritance of centrioles is universal in the brown algae
Article first published online: 22 FEB 2006
Volume 46, Issue 3, pages 191–198, September 1998
How to Cite
Nagasato, C., Motomura, T. and Ichrmura, T. (1998), Selective disappearance of maternal centrioles after fertilization in the anisogamous brown alga Cutleria cylindrica (Cutleriales, Phaeophyceae): Paternal inheritance of centrioles is universal in the brown algae. Phycological Research, 46: 191–198. doi: 10.1111/j.1440-1835.1998.tb00113.x
- Issue published online: 22 FEB 2006
- Article first published online: 22 FEB 2006
- Received 3 April 1998; accepted 19 May 1998.
- brown algae;
- Cutleria cylindrica;
- paternal inheritance
The behavior of centrioles in zygotes and female gametes developing parthenogenetically in the anisogamous brown alga Cutieria cyiindrica Okamura was studied using electron and immunofluorescence microscopy. Two pairs of centrioles, detected using anti-centrin antibody, were observed in the vicinity of the male and female nuclei, respectively, just after plasmogamy. The fluorescence intensity of one of the two centrin foci became weak 6 h after plasmogamy and finally disappeared. It was impossible to determine whether the male- or female-derived centrioles disappeared in zygotes, because there was nothing to detect morphological differences between the two centrioles. However, a prominent anti-centrin staining focus was located at the condensed male nucleus in zygotes in which karyogamy had not occurred yet. As a result, it was considered that the maternally inherited centrioles had selectively disappeared during development in C. cylindrica. The paternal inheritance of centrioles in zygotes was also confirmed by electron microscopy. Considering previous observations from oogamous and isogamous species of brown algae, we concluded that the paternal inheriance of centrioles could be universal in the brown algae.