From: Charles Date: Tue, 28 May 2019 05:18:23 +0000 (+0900) Subject: Café X-Git-Url: https://source.charles.plessy.org/?a=commitdiff_plain;h=9f03664c8b1f9209761c50cef31e9dee509517e2;p=source%2F.git Café --- diff --git a/biblio/10.1111_j.1744-7410.2001.tb00038.x.mdwn b/biblio/10.1111_j.1744-7410.2001.tb00038.x.mdwn new file mode 100644 index 00000000..fc8ce970 --- /dev/null +++ b/biblio/10.1111_j.1744-7410.2001.tb00038.x.mdwn @@ -0,0 +1,21 @@ +[[!meta title="Gut ultrastructure of the appendicularian Oikopleura dioica (Tunicata)"]] +[[!tag Oikopleura]] + +Paolo Burighel, Carlo Brena, Gian Bruno Martinucci, Francesca Cima + +Invertebrate Biology, 120: 278-293. doi:10.1111/j.1744-7410.2001.tb00038.x + +Gut ultrastructure of the appendicularian _Oikopleura dioica_ (Tunicata) + +[[!doi 10.1111/j.1744-7410.2001.tb00038.x desc="“We propose the following +hypothesis for food processing in the alimentary canal. Absorption of +material digested by the enzymes of the gastric band begins in the left lobe of +the stomach. In the globular cells, endocytosis of macromolecules may occur, +followed by intracellular digestion. Absorption continues in the right lobe of +the stomach, where the ciliated microvillar cells store material in the form +of lipid droplets. In the stomach, food is wrapped in a peritrophic membrane +secreted by the epithelium, and fecal pellets form in the vertical intestine. +These pellets advance through the intestine, while absorption continues in the +ciliated microvillar and rectal globular cells; proteins are stored in the +rectum. The gut epithelium might also be involved in ion and liquid transport +for absorption and/or osmoregulation of internal fluid.”"]] diff --git a/tags/Oikopleura.mdwn b/tags/Oikopleura.mdwn index 92f0d023..40fae2a6 100644 --- a/tags/Oikopleura.mdwn +++ b/tags/Oikopleura.mdwn @@ -331,6 +331,12 @@ Physiology - Some members of retinoic acid pathway gene network that were not lost in _O. dioica_ show signs of neofunctionalisation or specialisation in their ancestral activity in digestion or chemical defence ([[Martí-Solans et al., 2016|biblio/27406791]]). + - Ciliated cells move the food through the digestive system. Protein + production, probably digestive enzymes, is strong in the gastric band of + both stomach lobes. Endocytosis is visible in the left lobe of the stomach and + the rectum. Lipid uptake might happen in the right lobe of the stomach + ([[Burighel, Brena, Martinucci and Cima + (2005)|biblio/10.1111_j.1744-7410.2001.tb00038.x]]). House