Heterothallism in Sapromyces Reinschii: Preliminary Note
1938; Taylor & Francis; Volume: 30; Issue: 3 Linguagem: Inglês
10.1080/00275514.1938.12017267
ISSN1557-2536
Autores Tópico(s)Diatoms and Algae Research
ResumoSUMMARYSapromyces Reinschii, an aquatic Phycomycete of the Leptomitaceae, chosen because it possesses distinct advantages for the investigation of sexuality was subjected to a preliminary study by P. H. Jordan in 1927–29. Attempts to grow pure cultures from single zoöspores on artificial media failed, but basal cells, which originate from single zoöspores, when dissected out and transplanted to suitable substrata in water cultures, developed successfully. Predominant heterothallism was revealed, for when such individual plants were kept separate they formed non-sexual organs only, but when male and female individuals were grown together in contact they produced their respective sex organs and fertilization occurred. A few aberrant cases were encountered, one female, otherwise normal, developing oögonal initials without contact with a male, while several isolates remained apparently sterile showing no reaction to either sex.
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