scholarly journals Regulation of sporulation in the yeast Saccharomyces cerevisiae.

1970 ◽  
Vol 57 (3) ◽  
Author(s):  
Iga Piekarska ◽  
Joanna Rytka ◽  
Bozenna Rempola

Sporulation of the budding yeast Saccharomyces cerevisiae — equivalent to gametogenesis in higher organisms, is a complex differentiation program induced by starvation of cells for nitrogen and carbon. Such environmental conditions activate coordinated, sequential changes in gene expression leading to production of haploid, stress-resistant spores. Sporulation comprises two rounds of meiosis coupled with spore morphogenesis and is tightly controlled to ensure viable progeny. This review concerns the regulation of differentiation process by nutritional and transcriptional signals.

1995 ◽  
Vol 29 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Alistair Chambers ◽  
Elizabeth A. Packham ◽  
Ian R. Graham

Microbiology ◽  
1997 ◽  
Vol 143 (6) ◽  
pp. 1867-1876 ◽  
Author(s):  
P. A. Radcliffe ◽  
K. M. Binley ◽  
J. Trevethick ◽  
M. Hall ◽  
P. E. Sudbery

Metallomics ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1257-1263 ◽  
Author(s):  
Yasumitsu Ogra ◽  
Maya Shimizu ◽  
Kazuaki Takahashi ◽  
Yasumi Anan

Organic selenium metabolites of plants and animals such as selenoamino acids and selenosugars are metabolized to selenomethionine in yeast.


1990 ◽  
Vol 10 (5) ◽  
pp. 2104-2110
Author(s):  
A P Mitchell ◽  
S E Driscoll ◽  
H E Smith

In the yeast Saccharomyces cerevisiae, meiosis and spore formation require the induction of sporulation-specific genes. Two genes are thought to activate the sporulation program: IME1 and IME2 (inducer of meiosis). Both genes are induced upon entry into meiosis, and IME1 is required for IME2 expression. We report here that IME1 is essential for expression of four sporulation-specific genes. In contrast, IME2 is not absolutely essential for expression of the sporulation-specific genes, but contributes to their rapid induction. Expression of IME2 from a heterologous promoter permits the expression of these sporulation-specific genes, meiotic recombination, and spore formation in the absence of IME1. We propose that the IME1 and IME2 products can each activate sporulation-specific genes independently. In addition, the IME1 product stimulates sporulation-specific gene expression indirectly through activation of IME2 expression.


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