Hammond M P, Robinson R D
Department of Biochemistry, University of the West Indies, Kingston, Jamaica.
J Parasitol. 1994 Oct;80(5):689-95.
Gametogenesis and development were studied in free-living adults of the human parasitic nematode Strongyloides stercoralis. The diploid chromosome number is 6 in germ-line tissue of females and in embryos that will develop into parasitic females. Reproduction appears to be by meiotic parthenogenesis and pseudogamy, as in other species in the genus. Fecundity may be limited by the short lifespan of males. Newly hatched larvae contain about 500 cells, whereas adult females have about 840 somatic cells and a variable number of germ-line cells. The apical vegetative zones of both ovary and testis are occupied by cells with large amounts of DNA in their nuclei.
对人体寄生线虫粪类圆线虫自由生活成虫的配子发生和发育进行了研究。雌性生殖系组织以及将发育为寄生性雌虫的胚胎中的二倍体染色体数为6。与该属其他物种一样，其繁殖方式似乎是减数分裂孤雌生殖和假受精。繁殖力可能受雄性寿命短暂的限制。新孵化的幼虫约有500个细胞，而成虫雌虫约有840个体细胞和数量可变的生殖系细胞。卵巢和睾丸的顶端营养区都被细胞核中含有大量DNA的细胞占据。
