Abstract：
:Trichoplax, a member of the phylum Placozoa, is a tiny ciliated marine animal that glides on surfaces feeding on algae and cyanobacteria. It stands out from other animals in that it lacks an internal digestive system and, instead, digests food trapped under its lower surface. Here we review recent work on the phenotypes of its six cell types and their roles in digestion and feeding behavior. Phylogenomic analyses place Placozoa as sister to Eumetazoa, the clade that includes Cnidaria and Bilateria. Comparing the phenotypes of cells in Trichoplax to those of cells in the digestive epithelia of Eumetazoa allows us to make inferences about the cell types and mode of feeding of their ancestors. From our increasingly mechanistic understanding of feeding in Trichoplax, we get a glimpse into how primitive animals may have hunted and consumed food prior to the evolution of neurons, muscles, and internal digestive systems.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Smith CL,Mayorova TDdoi
10.1007/s00441-019-03057-zsubject
Has Abstractpub_date
2019-09-01 00:00:00pages
353-367issue
3eissn
0302-766Xissn
1432-0878pii
10.1007/s00441-019-03057-zjournal_volume
377pub_type
杂志文章,评审abstract：:We previously described the presence of MHC class II (HLA-DR) antigens, structurally similar to those on lymphoid cells and bearing the genetically-appropriate allotypic determinants, on human adrenocortical cells in the zona reticularis of normal glands. We now report a similar expression by granulosa-lutein cells (G...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00309876
更新日期：1990-11-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：2020-09-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221649
更新日期：1989-07-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216557
更新日期：1987-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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journal_title：Cell and tissue research
pub_type： 杂志文章
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-009-0816-8
更新日期：2010-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220968
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219416
更新日期：1976-07-30 00:00:00
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journal_title：Cell and tissue research
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更新日期：2001-11-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218078
更新日期：1986-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00209140
更新日期：1978-06-08 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-014-1935-4
更新日期：2014-11-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00237973
更新日期：1980-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-003-0707-3
更新日期：2003-04-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-005-1111-y
更新日期：2005-07-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050764
更新日期：1997-02-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00312830
更新日期：1993-08-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1978-01-17 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1979-07-17 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218176
更新日期：1978-07-05 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1994-12-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1995-05-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：2000-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-019-03130-7
更新日期：2020-01-01 00:00:00
abstract：:Changes in intestinal function, notably impaired transit, following ischemia/reperfusion (I/R) injury are likely to derive, at least in part, from damage to the enteric nervous system. Currently, there is a lack of quantitative data and methods on which to base quantitation of changes that occur in enteric neurons. In...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-010-1126-x
更新日期：2011-04-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：2004-11-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
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更新日期：2011-01-01 00:00:00
abstract：:Poreless sensilla (np-sensilla) on the antennae of 18 species from 9 insect orders, and on the maxillary palps of Periplaneta americana were investigated using chemo- and cryofixation. The number of np-sensilla is low. Common features of these sensilla are: (a) the presence of a peg, (b) the lack of pores that lead to...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00213769
更新日期：1983-01-01 00:00:00
