- PII
- S30345057S2686738925040066-1
- DOI
- 10.7868/S3034505725040066
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 523 / Issue number 1
- Pages
- 417-420
- Abstract
- The ascidian Styela clava is an invasive species that easily colonizes new water areas and has wide distribution. We discovered a previously undescribed typhlosole, which was studied using histological techniques, transmission electron microscopy and computer microtomography. The typhlosole is a large fold of the dorsal intestinal wall, starting in the lower quarter of the stomach and continuing to the rectum. Its shape varies greatly: from a rounded protrusion to a spirally twisted fold. The typhlosole is formed by the intestinal epithelium, a thick layer of connective tissue in which the pyloric tubules and blood vessels pass. The epithelium is formed by glandular, ciliated, and non-ciliated cells demonstrating apocrine secretion. The typhlosole intensifies cavitary digestion and absorption of nutrients. The discovered features may contribute to high digestion efficiency even in low-productive waters, determining the biological success of this species.
- Keywords
- тифлозоль пищеварительная система гистология морфология Асцидии инвазивные виды
- Date of publication
- 15.06.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 33
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