خبر علمی-کشف دومین ویروس بزرگ دریازی

Giant marine virus found

Researchers discover yet another virus with a large, complex genome, suggesting they may be fairly common

[Published 25th October 2010 08:00 PM GMT]

With a genome of more than 700 kilobases, a newly discovered virus marks the first giant virus known to infect a marine organism, and the second largest virus ever recorded. Image: Wikimedia commons The discovery, published this week in Proceedings of the National Academy of Sciences (PNAS), adds to the growing list of giant DNA viruses and suggests that these viruses, which appear to obtain much of their large genomes from their hosts and other microorganisms, may be more commonplace than scientists once believed. "It's really interesting, and a completely different way of seeing viruses," said microbiologist Didier Raoult of the University of the Mediterranean in Marseille, France, who was not involved in the research. "It's a completely new field that is emerging."

خبر علمی-تولید لاین سویا با درصد اسید اولئیک بیشتر

محققین به نژادی سویا موفق شده اند از طریق جهش زایی ژنوتیپ هایی از سویا تولید کنند که نسبت به رقم های عادی که معمولا 25 درصد اسید چرب اولئیک دارند تا 80 درصد از این اسید چرب را تولید می کنند که از نقطه نظر بیماریهای قلبی - عروقی نوید بخش است. متن کامل خبر در زیر آورده می شود.


New soybeans bred for oil that's more heart-healthy

خبر علمی- حفاظت مورچه ها از درختان در آفریقا

مدافعه مورچه ها از برخی از گونه های درختان اقاقیا از خورده شدن توسط فیلها

Ants known to defend certain species of Acacia trees from elephant predation deter the massive herbivores so effectively that they are impacting entire savanna ecosystems, according to a study published online today (2nd September) in Current Biology.