Bosworth A B, Meola S M, Thompson M, Olson J K
USDA, ARS, FAPRL, College Station, TX 77845, USA.
J Am Mosq Control Assoc. 1998 Mar;14(1):46-57.
Scanning and transmission electron microscopic techniques were used to determine the morphology of the exochorion and endochorion of Psorophora columbiae eggs as found in the ovary and after deposition. In the ovary, the outer chorionic reticulations and tubercles of the eggs are ornately developed below the follicular epithelium. Expansion of the eggs after deposition causes the outer chorionic reticuli and sculpturing (i.e., minor and major tubercles) to form the characteristic spinose appearance of Psorophora eggs. Transmission electron microscopic micrographs of cross and sagittal sections of the chorionic layers of Ps. columbiae eggs indicate that the major outer chorionic tubercles have 3 distinct regions. The 3rd region was found only on the dorsum of the tubercle. Elevation of major tubercles appears to be regulated, at least in part, by ambient moisture conditions, and one function of these tubercles seems to be adhesion of the egg to an oviposition surface.
运用扫描电子显微镜和透射电子显微镜技术，来确定哥伦比亚骚蚊卵在卵巢中以及产下后的外卵壳和内卵壳的形态。在卵巢中，卵的外层绒毛膜网纹和瘤状物在滤泡上皮下方发育得极为精致。产卵后卵的膨胀致使外层绒毛膜网纹和纹饰（即小瘤和大瘤）形成了哥伦比亚骚蚊卵特有的具刺外观。哥伦比亚骚蚊卵绒毛膜层的横切面和矢状切面的透射电子显微镜显微照片显示，主要的外层绒毛膜瘤有3个不同区域。第3个区域仅在瘤的背部发现。大瘤的隆起似乎至少部分受环境湿度条件的调节，并且这些瘤的一个功能似乎是使卵附着在产卵表面。
