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Patterned Arrays of Intramembranous Particles in the Bristle Cilia of Three Different Species of Euplotes 1
Author(s) -
DALLAI ROMANO,
LUPORINI PIERANGELO
Publication year - 1983
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1983.tb02943.x
Subject(s) - bristle , cilium , intramembranous ossification , anatomy , biology , dumbbell , microbiology and biotechnology , materials science , brush , composite material , physiology
Freeze‐fractured cells of three marine species of Euplctes (E. crassus, E. raikovi , and E. rariseta ) show bristle cilia with patterned arrays of intramembranous particles. Such arrays are essentially of three types, in different positions along the bristle shaft. One array is located near the bristle base and shows a plate‐like shape. It appears in a close spatial correspondence with the lasiosome network, which is a structure consisting of interconnected electron‐dense bodies lying in between the peripheral axonemal doublets and the bristle membrane. The second type of array, apparently typical of only E. raikovi , consists of eight to ten longitudinal rows of particles that occupy most of the intermediate portion of the bristle. The third type of array appears differently shaped in different species and occurs at the bristle apex.