Endosymbionts (Buchnera) from the aphids Schizaphis graminum and Diuraphis noxia have different copy numbers of the plasmid containing the leucine biosynthetic genes

Endosymbionts (Buchnera) from the aphids Schizaphis graminum and Diuraphis noxia have different copy numbers of the plasmid containing the leucine biosynthetic genes

The prokaryotic endosymbiont (Buchnera) of the aphid Schizaphis graminum contains 24 copies of a plasmid that has genes encoding enzymes of the leucine biosynthetic pathway while the endosymbiont of the related aphid Diuraphis noxia has only one copy of this plasmid. These results, in conjunction wi...

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Veröffentlicht in:Current microbiology 1998-04, Vol.36 (4), p.238-240
Hauptverfasser: MYLO LY THAO, BAUMANN, L, BAUMANN, P, MORAN, N. A
Format: Artikel
Sprache:eng
Schlagworte:
Amino acids
Animals
Aphids - microbiology
Bacteria - genetics
Bacteria - metabolism
Bacteriology
Biological and medical sciences
Biotechnology
Fundamental and applied biological sciences. Psychology
Gene Dosage
Genes
Genetics
Isomerases - genetics
Leucine - biosynthesis
Microbiology
Plasmids
Plasmids - genetics
Symbiosis
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Zusammenfassung:The prokaryotic endosymbiont (Buchnera) of the aphid Schizaphis graminum contains 24 copies of a plasmid that has genes encoding enzymes of the leucine biosynthetic pathway while the endosymbiont of the related aphid Diuraphis noxia has only one copy of this plasmid. These results, in conjunction with similar results for the trpEG-containing plasmids, suggest that D. noxia has a reduced demand for endosymbiont-derived essential amino acids.
ISSN:0343-8651
1432-0991
DOI:10.1007/s002849900301