RRC ID 32175
著者 Hata K, Ohkusu M, Aoki S, Ito-Kuwa S, Pienthaweechai K, Takeo K.
タイトル Cells of different ploidy are often present together in Cryptococcus neoformans strains.
ジャーナル Nihon Ishinkin Gakkai Zasshi
Abstract We examined the ploidy of C. neoformans strains using both laser scanning cytometry and a fluorescence microscope equipped with a photomultiplier. Haploid strains consisted of normal-sized cells with a haploid DNA amount. In the cell population there were also large-sized cells with a diploid DNA amount. These large cells in haploid strains were isolated using a Skerman micromanipulator, cultivated, and were able to generate diploid clones. Even after only 3-5 transfers on slants, haploid cells were present in all the diploid clones examined. Conversely, haploid clones obtained by single-cell-isolation of normal-sized cells from haploid strains were also shown to contain diploid cells after 3-5 transfers. Fresh haploid isolates from the environment similarly contained diploid cells after 3-5 transfers. Thus, a cellular ploidy shift was shown to occur widely in C. neoformans strains.
巻・号 41(3)
ページ 161-7
公開日 2000-1-1
DOI 10.3314/jjmm.41.161
PMID 10938517
MeSH Cryptococcus neoformans / cytology* DNA, Fungal / analysis Microscopy, Fluorescence Ploidies*
リソース情報
病原微生物 IFM 5807 IFM 5823 IFM 5824 IFM 5835 IFM 40038 IFM 45941 IFM 47847 IFM 47862 IFM 47877 IFM 48184 IFM 48313 IFM 48314 IFM 48484 IFM 48711 IFM 48764 IFM 48908 IFM 48909 IFM 48941 IFM 48943 IFM 49026 IFM 49085 IFM 49087 IFM 49088 IFM 49120 IFM 49121 IFM 49137 IFM 49160 IFM 49177