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| 交配后扶桑绵粉蚧雌成虫卵巢结构及
其他相关结构的变化 |
| Structure of ovaries and changes in the reproductive components of femalePhenacoccus solenopsis adults after mating |
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| DOI： |
| 中文关键词: 扶桑绵粉蚧 雌成虫 生殖系统 结构 |
| 英文关键词:Phenacoccus solenopsis amphigenesis spermathecae reproductive system |
| 基金项目:浙江省自然科学基金项目( LQ14C140002) ; 国家自然科学基金项目( 31270580) ; 农业部公益性行业专项( 201103026) |
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| 中文摘要: |
| 利用显微光镜和超微电镜技术观察明确了扶桑绵粉蚧雌成虫卵巢及相关结构的变化，结果表明该虫的内生
殖系统含1 对卵巢、输卵管、储精囊和1 对附腺。每个卵巢有数以百计的端滋式卵巢小管。卵巢小管缺末端纤丝，
包含滋养部分和卵黄部分。储精囊表面被丰富的肌原纤维包裹，未经交配的雌虫体内储精囊在显微镜下呈透明状
圆形，电镜观察囊内只含液态物质; 交配后，储精囊不再维持规则的球状，囊内出现精细胞等物质; 精细胞呈典
型的“9 + 2”结构。在初孵化的雌性成虫体内，卵巢小管内的滋养细胞部分中间为营养核，以此联接滋养细胞和
卵细胞。卵黄部分包含1 个卵细胞。雌性成虫只有通过交配，卵巢内的胚胎才可得以顺利发育; 若未经交配，卵巢
内的卵细胞将出现发达的内质网结构，标志着细胞将降解而被母体重吸收。 |
| 英文摘要: |
| Structure of ovaries and changes in reproductive components of female Phenacoccus solenopsis were studied using light microscopy and transmission electron microscopy． Ｒeproductive system of female P． solenopsis was composed of a pair of ovaries，a common oviduct，a spermatheca and two pairs of accessory glands． Each ovary was composed of approximately hundreds of telotrophic ovarioles． The ovariole was devoid of terminal filaments，and was subdivided into an apical tropharium and a vitellarium．Spermatheca was surrounded by a network of myofibril． Before mating，the spermatheca was round and translucent in the microscopy observation; nothing except liquid substance was observed under TEM． Once mated，the round shape could not be supported，and the sac was full － filled with substances proposed from the males involving with sperms． Sperms of P． solenopsis had a typical characteristic“9 + 2”structure． In the newly emerged female adults，the center of the tropharium was occupied by a trophic core，through which trophocytes and oocytes were connected． The vitellarium contained one oocyte． Only if the females were mated，sperms in the sac of the spermatheca，and embryogenesis in the ovarioles could be observed; otherwise，endoplasmic reticulum in the inner layer of the ovariole developed well，which was proposed to absorb the substance in the degenerated oocytes． |
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