Photosynthetic bacteria may be able to live without solar light, instead using thermal radiation from hot fluid for energy, according to a study in this week's PNAS. Researchers led by J. Thomas Beatty of the University of British Columbia, Vancouver, have found obligately photosynthetic green sulfur bacteria at a deep-sea hydrothermal vent more than a mile below the ocean surface.

Bacteria may not have to deal with grey hair and wrinkles, but they do appear to grow old. By following microbes with a camera, researchers have revealed aspects of their life cycle. Their innovation could help people investigate the molecular mechanisms involved in ageing.

click here to get the Biology 101 lectures given by Dr.Amjad Mahasneh

DALLAS - Jan. 19, 2005 - How do insects smell? Badly, according to a new study, if they lack a certain kind of protein critical to their ability to detect and interpret pheromones - the insect equivalent of "smelling."

The majority of existing embryonic stem cell lines may be worthless for therapeutic purposes according to new research carried out by scientists in the US.

SAN DIEGO, Oct. 26 – Researchers from the University of Pittsburgh School of Medicine have demonstrated for the first time that gene therapy can reverse diabetic neuropathy. While their studies have so far only involved mice, the results are significant because they provide the earliest evidence that such an approach might some day help people with diabetes, in whom neuropathy is a common complication that causes irreversible nerve damage. Details of the research were presented today at the 34th Annual Meeting of the Society for Neuroscience, being held Oct. 23 – 27 in San Diego.