Posted: 13 Mar 2015 02:17 PM PDT
Researchers have learned how living beings can keep gene expression in check -- which might partly explain the uncontrolled gene expression found in many cancers. "Using yeast as a model organism, we studied the Tup1 protein, a negative regulator of gene expression," says a biologist, adding, "This protein binds to some genes and blocks their expression, helping to ensure genes that shouldn't be turned on remain inactive."
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Posted: 13 Mar 2015 02:11 PM PDT
An unexpected discovery overturns a longstanding belief in the biological sciences. The research demonstrates that chitin, a molecule that was previously thought to be absent in vertebrates and that has been shown to trigger an allergy/immune reaction in mammals, is endogenously produced in fishes and amphibians.
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Posted: 13 Mar 2015 02:11 PM PDT
Tiny populations of invasive species such as Asian carp start their domination of new ecosystems by hanging out at local landmarks, according to a new study. Understanding how species use these local hotspots can play a key role in how officials approach population control for conserving endangered species and controlling invasive ones.
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Posted: 13 Mar 2015 05:34 AM PDT
The plant Typha domingensis can be used in reducing bacterial contamination of water for agricultural use, scientists report. This plant helps to reduce, up to 98 percent, pollution by enterobacteria (usually found in the intestines of mammals) involved in the development of disease.
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Posted: 12 Mar 2015 11:30 AM PDT
A team of investors, development organizations, conservationists, economists, and ecologists have published six natural science principles to ensure success of Payments for Ecosystem Services, mechanisms that have helped preserve carbon stocks stored in Madagascar's rainforests, maintain wildlife populations important for tourism in Tanzania, and protect watersheds in France by working with local farmers.
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Posted: 12 Mar 2015 11:25 AM PDT
Leftover plant matter from the production of palm oil could provide a generous source for making biofuels and environmentally friendly plastics. Researchers have developed a fungal culture for use in a cheap and efficient method to transform the waste oil palm material into useful products.
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2015년 3월 16일 월요일
ScienceDaily: Plants & Animals News
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