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<p class=MsoPlainText><font size=2 face="Courier New"><span style='font-size:
10.0pt'>http://www.msnbc.msn.com/id/32541662/ns/technology_and_science-science/<o:p></o:p></span></font></p>
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New clue found to disappearing honey bees <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Damage to bees' internal 'factories' may be behind decline in
population<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>The Associated Press<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><span id=udtD>updated <span class=time>11:59 a.m. PT,</span> <span
class=date>Mon., Aug 24, 2009</span></span><o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Researchers have a new clue to the collapse of honey
bee colonies across the country — damage to the bees' internal
"factories" that produce proteins.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Theories about the cause of bee colony collapse have
included viruses, mites, pesticides and fungi.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The new study of sick bees disclosed fragments of
ribosomal RNA in their gut, an indication of damage to the ribosomes, which
make proteins necessary for life, according to a study in Tuesday's issue of
Proceedings of the National Academy of Sciences.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>RNA, which is made from DNA, is central to protein
production.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The sick bees suffered an unusually high number of
infections with viruses that attack the ribosome, the researchers from the <st1:place
w:st="on"><st1:PlaceType w:st="on">University</st1:PlaceType> of <st1:PlaceName
w:st="on">Illinois</st1:PlaceName></st1:place> at Urbana-Champaign and the
U.S. Department of Agriculture reported.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>"If your ribosome is compromised, then you can't
respond to pesticides, you can't respond to fungal infections or bacteria or
inadequate nutrition because the ribosome is central to the survival of any
organism. You need proteins to survive," May R. Berenbaum, head of the
department of entomology at <st1:State w:st="on"><st1:place w:st="on">Illinois</st1:place></st1:State>,
said in a statement.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The researchers said the varroa mite, which was
accidentally introduced to the <st1:country-region w:st="on"><st1:place w:st="on">U.S.</st1:place></st1:country-region>
in 1986, is a carrier of picorna-like viruses that damage the ribosomes.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The mite may act as a tipping factor leading to
ribosome breakdown, the researchers said.<o:p></o:p></span></font></p>
<p class=textbodyblack><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>The study was funded by the Department of Agriculture.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>© 2009 The Associated Press. All rights reserved. This material
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