Fine structure of spermatozoa of Chondrostoma nasus and Rutilus meidingerii (Teleostei, Cyprinidae), as revealed by scanning and transmission electron microscopy
Identifieur interne : 000458 ( Main/Exploration ); précédent : 000457; suivant : 000459Fine structure of spermatozoa of Chondrostoma nasus and Rutilus meidingerii (Teleostei, Cyprinidae), as revealed by scanning and transmission electron microscopy
Auteurs : Sonja Fürböck [Autriche] ; Robert A. Patzner [Autriche] ; Franz Lahnsteiner [Autriche]Source :
- Acta Zoologica [ 0001-7272 ] ; 2010-01.
English descriptors
Abstract
Fürböck, S., Patzner, R.A. and Lahnsteiner, F. 2008. Fine structure of spermatozoa of Chondrostoma nasus and Rutilus meidingerii (Teleostei, Cyprinidae), as revealed by scanning and transmission electron microscopy. — Acta Zoologica (Stockholm) 91: 88–95 The fine structure of spermatozoa of sneep or nase, Chondrostoma nasus, and lake chub, Rutilus meidingerii, was investigated by means of scanning and transmission electron microscopy. The uniflagellate spermatozoa of C. nasus lacked an acrosome. The flagellum contained the conventional nine peripheral doublets and one central pair of microtubules (9 + 2 pattern) and lacked lateral fins. The uniflagellate spermatozoa of R. meidingerii were made up of a head, also without an acrosome. For both species the sperm tail was covered by a plasma membrane. The midpiece of C. nasus contained five or six mitochondria on average, vesicles and glycogen granules, whereas the midpiece of R. meidingerii had seven mitochondria of a spherical or ovoid shape. The centriolar complex was located caudolaterally with respect to the nucleus. In C. nasus, the centrioles were orientated at an angle of 125° to each other, whereas the centrioles of R. meidingerii were at an angle of 110°. The fine structure of C. nasus and R. meidingerii spermatozoa showed species‐specific differences in the position of the proximal centriole relative to the distal centriole, the position and number of mitochondria, size of the head and the length of the flagellum. (Correction added on 11 June 2009, after first online publication: The word ‘axoneme’ was deleted from the sentence ‘The flagellum contained the conventional nine peripheral doublets and one central pair of microtubules (9 + 2 pattern) axoneme and lacked lateral fins.’)
Url:
DOI: 10.1111/j.1463-6395.2008.00372.x
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Fine structure of spermatozoa of Chondrostoma nasus and Rutilus meidingerii (Teleostei, Cyprinidae), as revealed by scanning and transmission electron microscopy. — Acta Zoologica (Stockholm) 91: 88–95 The fine structure of spermatozoa of sneep or nase, Chondrostoma nasus, and lake chub, Rutilus meidingerii, was investigated by means of scanning and transmission electron microscopy. The uniflagellate spermatozoa of C. nasus lacked an acrosome. The flagellum contained the conventional nine peripheral doublets and one central pair of microtubules (9 + 2 pattern) and lacked lateral fins. The uniflagellate spermatozoa of R. meidingerii were made up of a head, also without an acrosome. For both species the sperm tail was covered by a plasma membrane. The midpiece of C. nasus contained five or six mitochondria on average, vesicles and glycogen granules, whereas the midpiece of R. meidingerii had seven mitochondria of a spherical or ovoid shape. The centriolar complex was located caudolaterally with respect to the nucleus. In C. nasus, the centrioles were orientated at an angle of 125° to each other, whereas the centrioles of R. meidingerii were at an angle of 110°. The fine structure of C. nasus and R. meidingerii spermatozoa showed species‐specific differences in the position of the proximal centriole relative to the distal centriole, the position and number of mitochondria, size of the head and the length of the flagellum. (Correction added on 11 June 2009, after first online publication: The word ‘axoneme’ was deleted from the sentence ‘The flagellum contained the conventional nine peripheral doublets and one central pair of microtubules (9 + 2 pattern) axoneme and lacked lateral fins.’)</div></front></TEI><affiliations><list><country><li>Autriche</li></country></list><tree><country name="Autriche"><noRegion><name sortKey="Furbock, Sonja" sort="Furbock, Sonja" uniqKey="Furbock S" first="Sonja" last="Fürböck">Sonja Fürböck</name></noRegion><name sortKey="Lahnsteiner, Franz" sort="Lahnsteiner, Franz" uniqKey="Lahnsteiner F" first="Franz" last="Lahnsteiner">Franz Lahnsteiner</name><name sortKey="Patzner, Robert A" sort="Patzner, Robert A" uniqKey="Patzner R" first="Robert A." last="Patzner">Robert A. Patzner</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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