Biology news

Hepatitis A-like virus identified in seals

Scientists in the Center for Infection and Immunity at Columbia University's Mailman School of Public Health have discovered a new virus in seals that is the closest known relative of the human hepatitis A virus. The finding ...

dateAug 25, 2015 in Cell & Microbiology
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How plant sensors detect pathogens

In the mid-20th century, an American scientist named Harold Henry Flor helped explain how certain varieties of plants can fight off some plant killers (pathogens), but not others, with a model called the "gene-for-gene" hypothesis. ...

dateAug 25, 2015 in Biotechnology
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River prawns stop disease spread in West Africa

The Diama Dam that spans between Senegal and Mauritania in West Africa was intended to improve crop irrigation when it was built in 1986. But while preventing saltwater intrusion, the dam also altered the region's ecology, ...

dateAug 25, 2015 in Ecology
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