Identification of Isolated and in situ Freshwater Sponge Spicules of Eastern Tennessee

Autor:	John E. Copeland, Stan C. Kunigelis
Rok vydání:	2014
Předmět:	In situ Gemmule (pangenesis) Spicule Sponge spicule Zoology Identification (biology) Biology Instrumentation
Zdroj:	Microscopy and Microanalysis. 20:1294-1295
ISSN:	1435-8115 1431-9276
Popis:	Sponges contain skeletal elements called spicules. Spicules of freshwater sponges are siliceous. Three forms of spicules, megascleres, microscleres and gemmoscleres, are recognized. Spicule shapes and sizes are quite varied and their use for differentiating species is well established [2]. Asexual reproductive resting stages known as gemmules are produced in response to adverse environmental conditions. The protective surface layer of a gemmule is composed of gemmoscleres. Of the three spicule types gemmoscleres are the most importance taxonomically.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1d98f294a5a82e8728a284d70fa72523 https://doi.org/10.1017/s1431927614008204 Zobrazit plný text záznamu