Hidden cell diversity in Placozoa: ultrastructural insights from Hoilungia hongkongensis.
Hidden cell diversity in Placozoa: ultrastructural insights from Hoilungia hongkongensis.
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DOI：
10.1007/s00441-021-03459-y
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发表时间：
2021-09
影响因子：
3.6
通讯作者：
Moroz LL
中科院分区：
文献类型：
--
作者：
Romanova DY;Varoqueaux F;Daraspe J;Nikitin MA;Eitel M;Fasshauer D;Moroz LL
从形态学的观点来看，盘虫是最简单的自由生活的动物之一。这个神秘的门对我们理解动物及其细胞类型的进化至关重要。它们毫米大小的圆盘状身体仅由三层细胞组成，而这三层细胞由大约七种主要细胞类型构成。盘虫缺乏肌肉细胞和神经元，但能够利用其纤毛下表面移动并以高度协调的方式摄取食物。有趣的是，神秘门的创始成员——黏着Trichoplax hahaerens的基因组揭示了令人惊讶的遗传复杂性。此外，最近的分子和功能研究发现了迄今为止隐藏的更大的细胞类型多样性。在这里，我们扩展了最近描述的一种placozoan物种- hoilungia hongkonggensis的微观解剖学特征。在H. hongkonggensis中，我们认识到建立了典型的三层placozoan体计划，但也发现了几种形态不同且可能新颖的细胞类型，其中包括新型腺体细胞和上上皮的“闪亮球体”细胞。因此，placozoans中细胞类型的多样性确实比预期的要高。
From a morphological point of view, placozoans are among the most simple free-living animals. This enigmatic phylum is critical for our understanding of the evolution of animals and their cell types. Their millimeter-sized, disc-like bodies consist of only three cell layers that are shaped by roughly seven major cell types. Placozoans lack muscle cells and neurons but are able to move using their ciliated lower surface and take up food in a highly coordinated manner. Intriguingly, the genome of Trichoplax adhaerens, the founding member of the enigmatic phylum, has disclosed a surprising level of genetic complexity. Moreover, recent molecular and functional investigations have uncovered a much larger, so-far hidden cell-type diversity. Here, we have extended the microanatomical characterization of a recently described placozoan species—Hoilungia hongkongensis. In H. hongkongensis, we recognized the established canonical three-layered placozoan body plan but also came across several morphologically distinct and potentially novel cell types, among them novel gland cells and “shiny spheres”-bearing cells at the upper epithelium. Thus, the diversity of cell types in placozoans is indeed higher than anticipated.
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影响因子：
3.7
作者：
Eitel M;Osigus HJ;DeSalle R;Schierwater B
通讯作者：
Schierwater B
DOI：
10.1007/978-1-62703-974-1_4
发表时间：
2014-01-01
期刊：
DEVELOPMENTAL BIOLOGY OF THE SEA URCHIN AND OTHER MARINE INVERTEBRATES: METHODS AND PROTOCOLS
影响因子：
--
作者：
Heyland, Andreas;Croll, Roger;Wyeth, Russell
通讯作者：
Wyeth, Russell
影响因子：
1.5
作者：
Guidi, Loretta;Eitel, Michael;Balsamo, Maria
通讯作者：
Balsamo, Maria
影响因子：
4.6
作者：
Kamm K;Osigus HJ;Stadler PF;DeSalle R;Schierwater B
通讯作者：
Schierwater B
影响因子：
2.4
作者：
Jakob, W;Sagasser, S;Schierwater, B
通讯作者：
Schierwater, B