Spore stage of Nosema apis, the protozoan that causes Nosema disease in honey bees. Magnified about 400 times, on a hemocytometer which has small squares to quantify the spores. Photo by Yuchuan Qin. 2003, MSU.
Description: Spore stage of Nosema apis, the protozoan that causes Nosema disease in honey bees. Magnified about 400 times, on a hemocytometer which has small squares to quantify the spores. Photo by Yuchuan Qin. 2003, MSU.