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Morphometries and Redescription of Trypanoplasma borreli Laveran & Mesnil, 1901 (Mastigophora, Kinetoplastida) from Experimentally Infected Common Carp (Cyprinus carpio L...
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Titel: |
Morphometries and Redescription of Trypanoplasma borreli Laveran & Mesnil, 1901 (Mastigophora, Kinetoplastida) from Experimentally Infected Common Carp (Cyprinus carpio L.) |
In: | The Journal of Protozoology, 36, 1989, 4, S. 408-411 |
veröffentlicht: |
Wiley
|
Umfang: | 408-411 |
ISSN: |
0022-3921 |
DOI: | 10.1111/j.1550-7408.1989.tb05536.x |
Zusammenfassung: | <jats:title>ABSTRACT</jats:title><jats:p>.Morphological development of cloned <jats:italic>Trypanoplasma borreli</jats:italic> was studied during the course of experimental infections in common carp. During the course of infection the cell dimensions of <jats:italic>T. borreli</jats:italic> showed high variability. At the beginning of parasitemia at day 8 p.i. (post inoculation) small and slender <jats:italic>T. borreli</jats:italic> predominated: surface area (SA, determined using a polar planimeter) 48.9 ± 13.1 Mm<jats:sup>2</jats:sup>; shape index (SI, length/width) 7.8 + 2.1 (n = 110). During the exponential growth phase until day 13 p.i. the size further decreased significantly <jats:italic>(P</jats:italic> < 1%): SA 29.9 ± 9.5 μm<jats:sup>:</jats:sup> (n = 109). During the transition of parasitemia from exponential growth to the chronic phase the size of <jats:italic>T. borreli</jats:italic> enlarged significantly <jats:italic>(P</jats:italic> < 1%) and it became stumpy in shape. Day 15 p.i.: SA 63.2 ± 15.8 μm<jats:sup>2</jats:sup>; SI 4.2 ± 1.0 (n = 51). During the chronic phase significantly <jats:italic>(P</jats:italic> < 1%) larger trypanoplasms predominated: day 41 p.i. SA 90.6 ± 22.7 μm<jats:sup>2</jats:sup>, SI 4.9 ± 1.1 (n = 221). Further samples showed only moderate variability of cell dimensions during this phase of parasitemia. Measurements of dimensions of lrinetoplast and nucleus and length of flagella varied in a similar manner. The position of the kinetoplast remained unchanged, while the nucleus had a more anterior position in the chronic phase. Experimental infections of various cyprinids were successful, perch and rainbow trout were not susceptible to experimental infections with <jats:italic>T. borreli.</jats:italic> Using these data a redescription of <jats:italic>T. borreli</jats:italic> is given.</jats:p> |
Format: | E-Article |
Quelle: | Wiley (CrossRef) |
Sprache: | Englisch |