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Figure 2


Honeybee ventricular cells infected by different stages ofNosema ceranae. Merogonial plasmodia were frequently observed, some of them with four diplokarya (a). Several mitochondria were close to and surrounded the plasmalemma of meronts (b) while RER, usually ring-shaped, is commonly observed around sporonts (c). Parasitized epithelial cells showing the nucleus apically displaced with some immature and mature stages of N. ceranae in invaginations of the nuclear membrane (d).

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