Systematic distribution of birefringent bodies in Rotifera and first evidence of their ultrastructure in Acyclus inquietus (Gnesiotrocha: Collothecaceae)
Systematic distribution of birefringent bodies in Rotifera and first evidence of their ultrastructure in Acyclus inquietus (Gnesiotrocha: Collothecaceae)
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轮虫中双折射体的系统分布及其在 Acyclus inquietus 中超微结构的首次证据(Gnesiotrocha:Collothecaceae)
DOI:
10.1007/s10750-018-3784-8
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发表时间:
2019
期刊:
影响因子:
2.6
通讯作者:
Wallace, Robert L.
中科院分区:
文献类型:
--
作者:
Yang, Hui;Hochberg, Rick;Walsh, Elizabeth J.;Wallace, Robert L.
Small birefringent concretions have been reported in rotifers for over a century and often hypothesized as energy sources. Here, we provide an update on their distribution in superorder Gnesiotrocha and the first data on their ultrastructure. Within Gnesiotrocha, these birefringent bodies (BRB) are known from at least ten species of Collothecaceae and 14 species of Flosculariaceae, both of which include planktonic and sessile species. Among sessile species, the predatorAcyclus inquietuscontains a single BRB that has been described as starch-like. We examined larvae ofA. inquietuswith transmission electron microscopy and revealed the BRB to have an irregular, electron-dense margin that surrounds a speckled core. The core appears mostly amorphous, but contains numerous, very small electron-dense spots and thin electron-dense fibers; there is no evidence of any crystalline lattice. The intestinal lumen contains smaller concretions that are probably the result of BRB metabolism. The thin epithelium contains abundant electron-dense granules but relatively few organelles. We hypothesize that the BRB is a unique form of extracellular glycogen that functions as an energy source in larvae for their dispersal and metamorphosis. In adultA. inquietus, the BRB may provide energy permitting reproduction when prey are no longer available.
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DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
P. Gosse;C. T. Hudson
通讯作者:
C. T. Hudson
DOI:
10.1083/jcb.8.3.575
发表时间:
1960-12
期刊:
The Journal of biophysical and biochemical cytology
影响因子:
--
作者:
REVEL, J P;NAPOLITANO, L;FAWCETT, D W
通讯作者:
FAWCETT, D W
影响因子:
2.6
作者:
L. Kutikova
通讯作者:
L. Kutikova
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
C. T. Hudson;P. Gosse
通讯作者:
P. Gosse
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
R. Wallace
通讯作者:
R. Wallace