| 文蛤吸虫寄生病的组织病理学观察 |
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| 引用本文： | 吕大伟,褚建伟,王树国,张榭令,王冬凤,王晓梅.文蛤吸虫寄生病的组织病理学观察[J].海洋水产研究,2004,25(2):47-52. |
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| 作者姓名： | 吕大伟 褚建伟 王树国 张榭令 王冬凤 王晓梅 |
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| 作者单位： | 蓬莱市水产研究所,265600 |
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| 摘 要： | 报道了吸虫在文蛤(Meretrix meretrix Linnaeus)体内的寄生情况以及所引起的组织病理学变化。观察表明，该吸虫是以胚细胞方式繁殖，幼虫经历胞蚴阶段，发育成尾蚴。其寄生情况与寄生于其他双壳贝类的一些吸虫相似，均是以生殖腺为主要侵占部位，少部分则进入附近的消化盲囊、鳃、外套膜、足等，消化道中未发现其存在。已被感染的消化盲囊、外套膜等器官组织出现上皮细胞脱落或崩解，肌纤维排列紊乱或溶解，黏液细胞增生等病理症状。观察发现，寄生虫不仅破坏已感染的组织，未感染部位的组织也呈现一定的病理学变化，最终导致宿主因器官衰竭、功能丧失而死亡。
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| 关 键 词： | 文蛤（Meretrix meretrix Linnaeus） 吸虫 寄生病 组织病理学 |
| 文章编号： | 1000-7075(2004)02-0047-06 |
| 修稿时间： | 2003年8月10日 |
The observation of histopathology of the Meretix meretrix Linnaeusparasitized by the larva of bucephalidae |
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| Abstract: | This paper reports the results of the histopathology of Meretrix meretrix Linnaeous parasitized by the Larva of the bucephalidae. This observation found that the trematoda raises up in the way of gernmal cell, its Larva comes through the phase of the sporocys, and finally becomes the cercariae. Its parasitizing situation is very similar to that of others trematode that parasitizes the clam. Most of them occupied the genital gland of the clam, relatively fewer occurred in other organs, but were not found in the digestive tract. In heavy infestations, the gonads were completely destroyed and replaced by mass of larve digenea. Other organs exhibited pathological changes obviously, e.g. The epithelial cells detached from the wall of digestive tract, digetive diverticula and gill. The structure of muscular tissue becomes irregularly arranged, parts melting. If heavily parasitized, all the essential organs were broken down and dead greatly. This observation also found that the bucephalidae not only harmed the tissues which have been parasitized, but also caused the other organs debiliation. In the end, the infeted clam was dead because all of his organs crocked up and lost their function. |
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| Keywords: | Meretrix meretrix Linnaeus Larva Parasitic disease Histopathology |
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