Morphology and Cell Division of Saudithrix terricola n. gen., n. sp., a Large, Stichotrich Ciliate from Saudi Arabia

The morphology and main ontogenetic traits of a new stichotrich ciliate, Saudithrix terricola Foissner, AL‐Rasheid and Berger n. gen., n. sp., from a terrestrial habitat in Saudi Arabia were investigated using live observation, protargol impregnation, and scanning electron microscopy. Saudithrix ter...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of eukaryotic microbiology 2006-07, Vol.53 (4), p.260-268
Main Authors: BERGER, HELMUT, AL-RASHEID, KHALED A. S., FOISSNER, WILHELM
Format: Article
Language:English
Subjects:
Animals
Balantidium jocularum
Biological and medical sciences
Cell Division
Ciliophora - classification
Ciliophora - cytology
Fundamental and applied biological sciences. Psychology
Morphogenesis
morphometry
multicorona
ontogenesis
Protozoa
resting cyst
Saudi Arabia
Soil - parasitology
soil ciliate
spirotrichea
Systematics. Geographical distribution. Morphology. Cytology
taxonomy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The morphology and main ontogenetic traits of a new stichotrich ciliate, Saudithrix terricola Foissner, AL‐Rasheid and Berger n. gen., n. sp., from a terrestrial habitat in Saudi Arabia were investigated using live observation, protargol impregnation, and scanning electron microscopy. Saudithrix terricola is characterized by a large (200–350 × 70–150 μm), flexible body; an adoral zone formed like a three‐quarter circle; a sickle‐shaped buccal lip with a widened paroral forming a cyrtohymenid pattern with the endoral; 11 frontal and frontal‐ventral cirral rows (including right marginal rows) and one left marginal row covering the ventral side; two buccal cirri; six to nine transverse cirri; three dorsal kineties; and two macronuclear nodules. The resting cyst is about 85 μm across, has a smooth wall, and a fluffy mucous layer. Most cirral anlagen originate within the parental rows and are arranged side by side, the proximal portion of the adoral zone of membranelles is reorganized, and some parental dorsal bristles are maintained. Neither the morphological nor the ontogenetic data reveal the systematic position of Saudithrix within the stichotrichs. The term multicorona is introduced and describes a frontal ciliature composed of four or more cirral bows.
ISSN:1066-5234
1550-7408
DOI:10.1111/j.1550-7408.2006.00102.x