SLANINOVÁ, Iva, Judit KUCSERA and Augustin SVOBODA. Topology of microtubules and actin in the life cycle of Xanthophyllomyces dendrorhous (Phaffia rhodozyma). Antonie van Leeuwenhoek. Dordrecht (The Netherlands): Kluwer Academic Publishers, 1999, vol. 75, No 4, p. 361-368. ISSN 0003-6072.
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Basic information
Original name Topology of microtubules and actin in the life cycle of Xanthophyllomyces dendrorhous (Phaffia rhodozyma)
Authors SLANINOVÁ, Iva (203 Czech Republic), Judit KUCSERA and Augustin SVOBODA (203 Czech Republic).
Edition Antonie van Leeuwenhoek, Dordrecht (The Netherlands), Kluwer Academic Publishers, 1999, 0003-6072.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.423
RIV identification code RIV/00216224:14110/99:00001302
Organization unit Faculty of Medicine
UT WoS 000082271500011
Keywords in English actin
Tags Actin
Changed by Changed by: prof. MUDr. Iva Slaninová, Ph.D., učo 2105. Changed: 6/11/2003 17:34.
Abstract
The morphology of budding and conjugating cells and associated changes in microtubules and actin distribution were studied in the yeast Xanthophyllomyces dendrorhous (Phaffia rhodozyma) by phase-contrast and fluorescence microscopy. The non-budding interphase cell showed a nucleus situated in the central position and bundles of cytoplasmic microtubules either stretching parallel to the longitudinal cell axis or randomly distributed in the cell; none of these, however, were in apparent contact with the nucleus. During mitosis, the nucleus divided in the daughter cell, cytoplasmic microtubules disappeared and were replaced by a spindle. The cytoplasmic microtubules reappeared after mitosis had finished. Actin patches were present both in the bud and the mother cell. Cells were induced to mate by nitrogen depletion. Partner cells fused by conjugation projections where actin patches had been accumulated. Cell fusion resulted in a zygote that produced a holobasidium with parallel bundles of microtubules extended along the basidiophore axis and with actin patches concentrated at the apex. The fused nucleus moved towards the tip of the basidiophore . During this movement, nuclear division was taking place; the nuclei were eventually distributed to basidiospores. Mitochondria visualised by means of DIOC6(3) appeared as vesicles of various sizes; their large amounts were found, often lying adjacent to microtubules, in the cytoplasm of both vegetative cells and zygotes.
Links
GA204/97/P097, research and development projectName: Úloha cytoskeletu a buněčné stěny v polarizaci buňky
Investor: Czech Science Foundation, Role of the cytoskeleton and cell wall in generation of cell polarity
GA204/97/1150, research and development projectName: Buněčná stěna a morfogeneze kvasinkové buňky: role cytoskeletu
Investor: Czech Science Foundation, The cell wall and morphogenesis in yeast cells: a role for the cytoskeleton
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