Fine structure of the subitaneous eggshell of the sessile rotifer Stephanoceros millsii (Monogononta) with observations on vesicle trafficking in the integument during ontogeny
Fine structure of the subitaneous eggshell of the sessile rotifer Stephanoceros millsii (Monogononta) with observations on vesicle trafficking in the integument during ontogeny
复制标题
无柄轮虫 Stephanoceros millsii (Monogononta) 下蛋壳的精细结构以及个体发育过程中珠皮内囊泡运输的观察
DOI:
10.1080/07924259.2019.1581097
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发表时间:
2018
影响因子:
0.8
通讯作者:
Wallace, Robert L.
中科院分区:
文献类型:
--
作者:
Hochberg, Rick;Yang, Hui;Walsh, Elizabeth J.;Wallace, Robert L.
Rotifers that engage in cyclical parthenogenesis produce two types of eggs: subitaneous eggs that hatch as clonal females and meiotic eggs that hatch as haploid males, or if fertilized, as females after a period of diapause (resting eggs). The ultrastructure of resting eggshells is known for some motile species, but there are limited data on subitaneous eggshells, and no data on any eggshells of sessile rotifers. Here, we investigated the ultrastructure of the subitaneous eggshell of the sessile rotiferStephanoceros millsiiand its potential origins of secretion, the maternal vitellarium and embryonic integument. We also explored secretory activity in the larval and adult integuments to determine whether activity changes during ontogeny. The eggshell consists of a single layer with two sublayers: an external granular sublayer apparently derived from the maternal vitellarium, and an internal flocculent sublayer secreted by the embryonic integument that may form a hatching membrane or glycocalyx. Secretory activity remains high in both the larva and adult and appears to be the source of the thickening glycocalyx. Altogether, the subitaneous eggshell ofS. millsiiis the thinnest among monogonont rotifers. Thin eggshells may have evolved in response to the added protection provided by the mother’s extracorporeal tube.
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DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
G. W. Tannreuther
通讯作者:
G. W. Tannreuther
DOI:
--
发表时间:
2004
期刊:
Zeitschrift für Zellforschung und Mikroskopische Anatomie
影响因子:
--
作者:
V. Storch;U. Welsch
通讯作者:
U. Welsch
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
K. G. Adiyodi;R. G. Adiyodi
通讯作者:
R. G. Adiyodi
影响因子:
1
作者:
Yang, Hui;Hochberg, Rick
通讯作者:
Hochberg, Rick
影响因子:
2.6
作者:
L. Kutikova
通讯作者:
L. Kutikova