Induction and Ecological Significance of Gigantism in the Rotifer Asplanchna sieboldi
Induction and Ecological Significance of Gigantism in the Rotifer Asplanchna sieboldi
复制标题
西氏轮虫巨型现象的诱导及其生态意义
作者：
J. J. Gilbert
膳食α-生育酚和同类相食共同诱导了巨大的钟状形态型。与两种较小的雌性形态型不同，钟形虫不会通过形成雄性后代来对α-生育酚做出反应。钟状的生产可能是非常重要的生态，允许一个快速的，适应性的反应，增加猎物的大小和快速的繁殖率不间断的性和随之而来的休眠。
Dietary α-tocopherol and cannibalism together induce the giant, campanulate morphotype. Campanulates, unlike the two smaller female morphotypes, do not respond to α-tocopherol by forming male-producing offspring. Campanulate production probably is very significant ecologically, allowing a rapid, adaptive response to increased prey size and a rapid reproductive rate uninter-rupted by sexuality and consequent dormancy.