Jungersen G, Eriksen L, Nansen P, Fagerholm H P
Danish Centre for Experimental Parasitology, Royal Veterinary and Agricultural University, Frederiksberg, Copenhagen, Denmark.
Parasitology. 1997 Oct;115 ( Pt 4):439-42. doi: 10.1017/s003118209700142x.
In spite of the vast distribution and considerable impact on human and animal health of Ascaris suum and A. lumbricoides, little is known of the sexual biology and reproductive capacity of these intestinal nematodes. By oral transfer of adult female worms to previously parasite-naive pigs we show that in the absence of males the egg production ceases after 2-3 weeks. Such females readily resume egg production a few days after oral transfer of male worms. These observations throw light on an important aspect of Ascaris biology, but also pave the way for possible experimental interbreeding between the human and pig Ascaris species.
尽管猪蛔虫和人蛔虫分布广泛且对人类和动物健康有相当大的影响，但对于这些肠道线虫的性生物学和生殖能力却知之甚少。通过将成年雌虫经口转移至先前未感染过寄生虫的猪体内，我们发现，在没有雄虫的情况下，产卵在2至3周后停止。在经口转移雄虫几天后，此类雌虫便很容易恢复产卵。这些观察结果揭示了蛔虫生物学的一个重要方面，也为人类和猪蛔虫物种之间可能的实验性杂交铺平了道路。
