Stability of IncQ and IncP-1 vector plasmids in Rhizobium spp.
نویسندگان
چکیده
منابع مشابه
Comparative biology of IncQ and IncQ-like plasmids.
Plasmids belonging to Escherichia coli incompatibility group Q are relatively small (approximately 5 to 15 kb) and able to replicate in a remarkably broad range of bacterial hosts. These include gram-positive bacteria such as Brevibacterium and Mycobacterium and gram-negative bacteria such as Agrobacterium, Desulfovibrio, and cyanobacteria. These plasmids are mobilized by several self-transmiss...
متن کاملPlasmids from freshwater environments capable of IncQ retrotransfer are diverse and include pQKH54, a new IncP-1 subgroup archetype.
Nine mercury-resistance plasmids isolated from river epilithon were assessed for their ability to retrotransfer the non-conjugative IncQ plasmid, R300B, derivatives of which have commercial uses that may result in accidental or deliberate release into the environment. Retrotransfer frequencies ranging from 2.1 x 10(-4) to 1.75 x 10(-5) were obtained for five of the nine plasmids--the remaining ...
متن کاملSpread and survival of promiscuous IncP-1 plasmids.
Plasmids classified to the IncP-1 incompatibility group belong to the most stably maintained mobile elements among low copy number plasmids known to date. The remarkable persistence is achieved by various tightly controlled stability mechanisms like active partitioning, efficient conjugative transfer system, killing of plasmid-free segregants and multimer resolution. The unique feature of IncP-...
متن کاملBroad-host-range IncP-1 plasmids and their resistance potential
The plasmids of the incompatibility (Inc) group IncP-1, also called IncP, as extrachromosomal genetic elements can transfer and replicate virtually in all Gram-negative bacteria. They are composed of backbone genes that encode a variety of essential functions and accessory genes that have implications for human health and environmental bioremediation. Broad-host-range IncP plasmids are known to...
متن کاملDiversity of IncP-9 plasmids of Pseudomonas
IncP-9 plasmids are important vehicles for degradation and resistance genes that contribute to the adaptability of Pseudomonas species in a variety of natural habitats. The three completely sequenced IncP-9 plasmids, pWW0, pDTG1 and NAH7, show extensive homology in replication, partitioning and transfer loci (an approximately 25 kb region) and to a lesser extent in the remaining backbone segmen...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1987
ISSN: 0378-1097
DOI: 10.1016/0378-1097(87)90462-9