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首页> 外文期刊>Journal of Parasitology >Polypocephalus sp. infects the nervous system and increases activity of commercially harvested white shrimp (Litopenaeus setiferus).
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Polypocephalus sp. infects the nervous system and increases activity of commercially harvested white shrimp (Litopenaeus setiferus).

机译：Polypocephalus sp。会感染神经系统并增加商业化收获的白虾（Litopenaeus setiferus ）的活性。

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摘要

Larval tapeworms (Polypocephalus sp.) reside within the central nervous system of decapod crustaceans. Living within the nervous system would seem to create an excellent opportunity for the parasites to manipulate the behavior of their hosts, so we tested the hypothesis that behavior of white shrimp (Litopenaeus setiferus) would be correlated with the level of parasitic infection. We videorecorded the behavior of L. setiferus for 8 hr, then examined the nervous system and digestive glands for parasite infection. Larval Polypocephalus sp. were found in the nerve cord, often in large numbers, but only very rarely in the digestive gland, which was typically infected by the larval stage of the nematode, Hysterothylacium sp. There were significantly more Polypocephalus larvae in the abdominal and thoracic ganglia than the subesophageal ganglia and brain. Walking, but not swimming, was significantly and positively related to the number of Polypocephalus sp. lodged in nervous tissue, as well as shrimp carapace length. Polypocephalus sp. is 1 of only a few parasites residing inside the host nervous system and it may, therefore, be suitable for investigating mechanisms of parasite manipulation of invertebrate host behavior.Digital Object Identifier http://dx.doi.org/10.1645/GE-2749.1
机译：幼虫tape虫（ Polypocephalus sp。）居住在十足类甲壳动物的中枢神经系统内。生活在神经系统内似乎为寄生虫创造了一个极好的机会来操纵其寄主的行为，因此我们检验了白虾（ Litopenaeus setiferus ）的行为与水平相关的假设。寄生虫感染。我们录制了 L的行为。 setiferus 8小时，然后检查神经系统和消化腺是否有寄生虫感染。幼虫 Polypocephalus sp。常见于神经索中，但很少见于消化腺中，消化腺通常被线虫的幼虫期感染 Hysterothylacium sp。腹和胸神经节中的 Popopocephalus 幼虫明显多于食管下神经节和大脑。步行而不是游泳与 Polypocephalus sp的数量显着正相关。滞留在神经组织中，以及虾壳的长度。 Polypocephalus sp。是仅存在于宿主神经系统内的少数寄生虫之一，因此，它可能适合于研究无脊椎动物宿主行为的寄生虫操纵机制。数字对象标识符http://dx.doi.org/10.1645/GE-2749.1

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