An Electron-microscopic Study on the Pigment Granules of <i>Blepharisma</i>

Non‐Mendelian Inheritance in Blepharisma intermedium

“…The purpose of this paper is to present and discuss the data derived from these matings. I t should be noted that, in Japan, Dr. Fumie Inaba also observed the spontaneous appearance of a Blepharisma albino (16). She also studied albino X red matings; our data appear to be in basic agreement with her findings ( 15).…”

Osmium tetroxide vapor fixation of dividing and regenerating Blepharisma

“…The granules closely resemble those described for a colorless strain of Blepharisma (Inaba et al•, 1958). On occasion the usual content of a granule appears to be partially removed (Fig.…”

“…Numerous oval, filamentous or spherical granules were observed in the endoplasm; the inner surface of the granule membrane showed very small microvilli-like projections. The pigment granules of colorless and pigmented strains were examined by Inaba, Nakamura, and Yamaguchi (1958). Colorless organisms possessed granules 0.2-0.4 p, in diameter while the granules of the pigmented strain were usually 0.5 |i in diameter, and both types of granules are said to be bounded by a distinct, dense membrane 40-60 m|i, in thickness.…”

The Fine Structure of Nyctotherus cordiformis (Ehrenberg)

“…Groups of 3 or 4 oral tubular the ectoplasmic regions where they cross with other filaments, forming dense nodes (Figs. 10,11,12). These nodes are often conspicuously arranged in a hexagonal pattern ( Fig.…”

“…Dense filamentous material surrounds both loinetosomes and extends ECENT investigations at the ultrastructural level on R the heterotrich ciliates have revealed complex fibrillar systems associated with the somatic and oral ciliature. Most of these studies have ,been concerned primarily with freeliving species of the genera Blepharisma (4,11,13), Condylostoma( 32-38) Spirostomum (3,(6)(7)(8)10,18,22,39) and Stentor (9,21,23). Of the parasitic forms, however, only one major investigation has been made to date.…”