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Nosema

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
Nosema /No·se·ma/ (no-se´mah) a genus of intracellular protozoa, including N. ocula´rum, which causes corneal infections.
Nosema
a genus of protozoa in the class Microsporea. All are obligate intracellular parasites.

Nosema branchialis, Nosema lophi
found in fish.
Nosema cuniculi
see encephalitozooncuniculi.


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In 1997, just months before he began his monitoring project, Thorp attended a symposium of the Entomological Society of America during which he learned that an outbreak of Nosema bombi--a fungus that lives in the bees' intestinal track--had wiped out commercial populations of B.
Mooted culprits include a blood-sucking mite called varroa; a single-celled fungal parasite called Nosema cerenae that causes bee dystentery and pesticides used in fields that are pollinated by bees.
The bees returned infected with nosema ceranae, a single-celled protozoa originally from southeast Asia, which destroys the bees' digestive tract.
 
 
 
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