Document Detail

The apertospathulidae, a new family of haptorid ciliates (protozoa, ciliophora).
MedLine Citation:
PMID:  16014015     Owner:  NLM     Status:  MEDLINE    
We studied the morphology of three rare haptorid ciliates, using live observation and silver impregnation: Apertospathula verruculifera n. sp., Longispatha elegans n. gen., n. sp., and Rhinothrix porculus (Penard, 1922) n. gen., n. comb. Simple ethanol fixation (50-70%, v/v) is recommended to reveal the ciliary pattern of "difficult" ciliates, such as R. porculus, by protargol impregnation. The three genera investigated have a distinct feature in common, viz., a lasso-shaped oral bulge and circumoral kinety, where the right half is slightly to distinctly longer than the left and the circumoral kinety is open ventrally. Thus, they are united in a new spathidiid family, the Apertospathulidae n. fam., which probably evolved from a Bryophyllum-like ancestor by partial reduction of the oral bulge and circumoral kinety. Apertospathula verruculifera has a wart-like process, the palpus dorsalis, at the anterior end of the dorsal brush. The right branch of the circumoral kinety is only slightly longer than the left one. Longispatha elegans has a straight oral bulge and circumoral kinety, the right branch of which extends to the posterior end of the body while the left branch ends in the anterior third of the body. Rhinothrix porculus, a curious ciliate with a snout-like dorsal elongation of the oral bulge, the palpus oralis, has a highly characteristic ciliary pattern: the oral pattern is as in Longispatha, but the bulge and circumoral kinety extend spirally to the posterior end of the body while the somatic kineties course meridionally. This is achieved by inserting some shortened kineties in the curves of the oral bulge.
Wilhelm Foissner; Kuidong Xu; Martin Kreutz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of eukaryotic microbiology     Volume:  52     ISSN:  1066-5234     ISO Abbreviation:  J. Eukaryot. Microbiol.     Publication Date:    2005 Jul-Aug
Date Detail:
Created Date:  2005-07-14     Completed Date:  2005-10-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9306405     Medline TA:  J Eukaryot Microbiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  360-73     Citation Subset:  IM    
Universität Salzburg, FB Organismische Biologie, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria.
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MeSH Terms
Ciliophora / classification*,  isolation & purification,  ultrastructure
Microscopy, Electron, Scanning
Microscopy, Interference
Soil / parasitology
Reg. No./Substance:

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