蜚蠊传播病原体机制的研究

电镜下，在黑胸大蠊后肠中可见到圆球形、弯曲杆状以及长形三大类病原体。圆球形细菌又因去氧核糖核酸数量不同分为３种。有的细菌可见到分裂相，有的则侵入粘膜下层。该蠊种后肠特殊部位有小刺，细菌附着于不上刺并生长，表明兼有生物性传病机能。

Studies on Pathogens Transmitted by Cockroaches

The transmission electron microscopy had been used to visualize the three types of pathogens from the hindgut of the cockroach, Periplaneta fulginosa, The three pathegens were designatd ball shape, short curverods and large rod.At specific areas of the hindgut,pathogens attached to spine-like projections.The short rods had been obsarved to under go fission,Some pathogens invated into submucous membrane of tho gut. The cockroaches transmit ted pathogens with biological mechanism.