Buchnera aphidicola
 | This article needs additional citations for verification. (March 2012) |
| Buchnera aphidicola | |
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| Buchnera aphidicola in a host cell | |
Scientific classification 
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| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Enterobacterales |
| Family: | Erwiniaceae |
| Genus: | Buchnera Munson et al. 1991 |
| Species: | B. aphidicola
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| Binomial name | |
| Buchnera aphidicola Munson et al. 1991[1]
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Buchnera aphidicola, a member of the
The symbiotic relationship with aphids began between 160 million and 280 million years ago,[4] and has persisted through maternal transmission and cospeciation. Aphids have developed a bilobed bacteriome containing sixty to eighty bacteriocyte cells in which the life cycle of Buchnera associated with aphids is confined to.[5] A mature aphid may carry an estimated 5.6 × 106 Buchnera cells. Buchnera has lost regulatory factors, allowing continuous overproduction of tryptophan and other amino acids. Each bacteriocyte contains multiple vesicles, symbiosomes derived from the cell membrane.
Genome
The sizes of various Buchnera genomes are in the range of 600 to 650 kb and encode on the order of 500 to 560 proteins. Many contain also one or two plasmids (2.3 to 11 kb in size).[6]
As with many
Buchnera and plant viruses
Buchnera also increases the transmission of
History
Buchnera was named after Paul Buchner by Paul Baumann and his graduate student, and the first molecular characterization of a symbiotic bacterium was carried out by Baumann, using Buchnera. The initial studies on Buchnera later led to studies on symbionts of many groups of insects, pursued by numerous investigators, including Paul and Linda Baumann, Nancy Moran, Serap Aksoy, and Roy Gross, who together investigated symbionts of aphids, tsetse flies, ants, leafhoppers, mealybugs, whiteflies, psyllids, and others.
References
- ^ "Buchnera". List of Prokaryotic names with Standing in Nomenclature. Retrieved 28 April 2018.
- PMID 15012383.
- ^ PMID 11904373.
- ^ PMID 15028723.
- PMID 16153167.
- PMID 12522265.
- ISSN 0066-4227.
- Pérez-Brocal V, Gil R, Ramos S, Lamelas A, Postigo M, Michelena J, Silva F, Moya A, Latorre A (2006). "A small microbial genome: the end of a long symbiotic relationship?". Science. 314 (5797): 312–3. S2CID 40081627.
- Douglas, A E (1998). "Nutritional interactions in insect-microbial symbioses: Aphids and their symbiotic bacteria Buchnera". Annual Review of Entomology. 43: 17–38. PMID 15012383.