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Latest Yeast Stories

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2009-06-17 10:30:00

The flow of water into and out from the cell may play a crucial role in several types of cancer. Scientists at the University of Gothenburg have now found the gate that regulates the flow of water into yeast cells. The discovery, which will be published in the journal PLoS Biology, raises hopes of developing a drug that inhibits the spread and growth of tumors.All living organisms must be able to regulate the flow of water into and out from cells, in order to maintain cell form and size. This...

2009-06-16 07:39:18

Water is a crucial ingredient for life, but its level inside cells must be carefully regulated to maintain proper cell shape and size. In this week's issue of the open access journal PLoS Biology, scientists from the University of Gothenburg describe the highest resolution three-dimensional structure yet of a membrane protein, in this case of a protein channel known as an aquaporin that regulates water flow into and out of yeast cells. Virtually all living organisms use aquaporins to regulate...

2009-06-16 07:36:09

A group of researchers led by Carnegie Mellon University Biological Sciences Professor Aaron Mitchell has identified a novel regulatory gene network that plays an important role in the spread of common, and sometimes deadly, fungal infections. The findings, which establish the role of Zap1 protein in the activation of genes that regulate the synthesis of biofilm matrix, will be published in the June 16, 2009, issue of PLoS Biology.Candida albicans is a fungus, more specifically a yeast, which...

2009-05-25 07:49:55

An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. And it may also do so while infecting us, according to Duke University Medical Center researchers."Sex contributes to the Candida yeast species' evolutionary success," said Joseph Heitman, M.D., Ph.D., director of the Center for Microbial Pathogenesis in the Duke Department of Molecular Genetics and Microbiology and co-author of two...

2009-05-12 16:04:48

University of Southern California scientists say they have discovered glucose to glycerol conversion in long-lived yeast provides anti-aging effects. Researchers said they discovered yeast cells maintained on a glycerol diet live twice as long as normal -- as long as yeast cells on a severe caloric-restriction diet -- and are more resistant to cell damage. The scientists said their study is the first to propose that dietary substitution can replace dietary restriction in a living species. If...

2009-04-03 08:02:07

Whitehead Institute researchers have quintupled the number of identifiable prion proteins in yeast and have further clarified the role prions play in the inheritance of both beneficial and detrimental traits."The big debate in the field is are the prions functional "“ are they evolved to be prions, or are they always a disease, as in "mad cow'" disease in mammals," says Randal Halfmann, a graduate student in Whitehead Member Susan Lindquist's lab, and co-author of the paper featured in...

2009-04-02 13:48:16

Special proteins known as prions, which are perhaps best known as the agents of mad cow and other neurodegenerative diseases, can also serve as an important source of beneficial variation in nature, confirms a new study in the April 3rd issue of the journal Cell, a Cell Press publication. After an extensive search through the genome of yeast for proteins with prion-like character, the researchers found two dozen prion-forming proteins, most of which had never been seen before."We had...

2009-03-06 11:55:10

Animal studies show a reduction of calories is linked to longer life but Canadian researchers say sugar may be the link to age-related diseases. Canadian researchers found sugar -- in particular how cells' react to its presence -- linked to aging. The study, published in the journal PLoS Genetics, found that yeast cells in which the gene for a glucose sensor was removed had the same lengthened lifespans as had the yeast on a glucose-restricted diet. At a basic level, the researchers say,...

2009-02-25 12:08:27

Waste sugar xylose fermented to ethanol through introduction of a single stepEckhard Boles, co-founder of the Swiss biofuel company Butalco GmbH and a professor at Goethe-University in Frankfurt, Germany, has discovered a new enzyme which teaches yeast cells to ferment xylose into ethanol. Xylose is an unused waste sugar in the cellulosic ethanol production process. The researchers have recently filed a patent application for their process.In industrial fermentation processes, the yeast...

2009-02-02 14:58:30

U.S. researcher suggests there is a genetic link between Parkinson's disease and manganese poisoning. The study, published in Nature Genetics, ties Parkinson's disease to a protein in the brain -- alpha synuclien -- misfolding and forming clumps on the basis of how the protein behaves in the type of yeast used in baking and brewing. The similarity was discovered by Aaron Gitler -- studying yeast while at England's Whitehead Institute in Cambridge -- after reading about a type of Parkinson's...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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