Nettet25. okt. 2024 · The nemertean pilidium larva epitomizes maximally indirect development in which the morphogenesis, anatomy, and function of the larva and adult have minimal overlap, and the transition between the two life-history stages is accomplished via a rapid and catastrophic metamorphosis to avoid a prolonged state of dysfunction [ 1 – 3 ]. NettetAs the larva matures, the body enlarges axially at the expense of the lobes, which shrink and gradually disappear. The pilidium is helmet-shaped, with lateral lobes like ear-flaps on each side. The band runs along the margins of the helmet, and the larva itself is delicate and transparent.
Pilidiophoran Nemerteans (Heteronemertea; Lineidae)
Nettet1. apr. 2014 · Europe PMC is an archive of life sciences journal literature. Search life-sciences literature (41,384,377 articles, preprints and more) Nettet1. apr. 2014 · The growth of the pilidium larva occurs via a population of potentially pluripotent cells that reside in specific regions of the larval epithelium in the … in home therapy address
The trochoblasts in the pilidium larva break an ancient spiralian ...
NettetA pelagic planktotrophic pilidium is the ancestral form in the Pilidiophora, but several lineages exhibit deviations of this condition, mostly as a transition to pelagic lecithotrophy. The most extreme case occurs, however, in the Pilidiophoran Lineus ruber, which exhibits an adelphophagic intracapsular pilidium, the so‑called Schmidt’s larva. NettetHow the pilidium larva grows April M Bird†, George von Dassow† and Svetlana A Maslakova*† Abstract Background: For animal cells, ciliation and mitosis appear to be mutually exclusive. While uniciliated cells can resorb their cilium to undergo mitosis, multiciliated cells apparently can never divide again. NettetA nemertean pilidium larva, collected from the plankton at Kristineberg, Sweden, in July 2013.http://www.eb.tuebingen.mpg.de/research/research-groups/gaspar-... mln land and properties