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Infraciliature and myoneme system of Campanella umbellaria (Protozoa, Ciliophora, Peritrichida)
Author(s) -
Shi Xinlu,
Warren Alan,
Yu Yuhe,
Shen Yunfen
Publication year - 2004
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.10225
Subject(s) - zooid , biology , tuft , infundibulum , protozoa , anatomy , protist , composite material , materials science , botany , gene , biochemistry
The infraciliature and myoneme system of Campanella umbellaria were revealed using the protargol impregnation technique. The main characteristics of the infraciliature are the peristomial ciliary rows (haplokinety and polykineties), which make four and a half turns around the peristomial disc before plunging into the infundibulum, and the aboral infraciliature, which is made up of the aboral ciliary wreath (trochal band) and the scopula. The myoneme system is composed of: 1) longitudinal fibers, which include 60–84 (mean 72.3) short longitudinal fibers, 40–56 (mean 45.8) medium‐length longitudinal fibers, and numerous long longitudinal fibers; and 2) circular fibers, which include 8–12 (mean 9.3) peristomial ring fibers, linking fibers, support fibers, and peristomial disc fibers. The various fibers in C. umbellaria are interconnected to form a single myoneme system that may act as a cell skeleton as well as providing the mechanism by which the zooid contracts and relaxes. J. Morphol. 261:43–51, 2004. © 2004 Wiley‐Liss, Inc.