Parvibaculum lavamentivorans: Difference between revisions
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==Genome Structure== | ==Genome Structure== | ||
The genome of ''Parvibaculum lavamentivorans'' is completely sequenced for representative strain DS-1<sup>T</sup>.[http://www.ncbi.nlm.nih.gov/genome/?term=Parvibaculum+lavamentivorans] The DNA is packaged into one circular chromosome which contains | The genome of ''Parvibaculum lavamentivorans'' is completely sequenced for representative strain DS-1<sup>T</sup>.[http://www.ncbi.nlm.nih.gov/genome/?term=Parvibaculum+lavamentivorans] The DNA is packaged into one circular chromosome which contains one origin of replication, 3.91Mb, 3715 genes and 3648 coding genes with 62.3%GC. The bacterial immune repsonse CRISPR sequence is presenet. The genome only contains one rRNA operon, which is indicative of slow growth. | ||
==Cell Structure, Metabolism and Life Cycle== | ==Cell Structure, Metabolism and Life Cycle== |
Revision as of 04:22, 28 April 2015
Classification
Higher order taxa
Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Rhodobiaceae
Species
Parvibaculum lavamentivorans
Description and Significance
Parvibaculum lavamentivorans DS-1T is a rod shaped, motile, gram-negative, non-pigmented, aerobic, chemoorganoheterotrophic bacterium. P. lavamentivorans readily form biofilms. The species does not sporulate. Individuals are about 1.0 × 0.2 μm. The species is environmentally significant for its ability to catalyze the degradation of laundry detergents.
Genome Structure
The genome of Parvibaculum lavamentivorans is completely sequenced for representative strain DS-1T.[1] The DNA is packaged into one circular chromosome which contains one origin of replication, 3.91Mb, 3715 genes and 3648 coding genes with 62.3%GC. The bacterial immune repsonse CRISPR sequence is presenet. The genome only contains one rRNA operon, which is indicative of slow growth.
Cell Structure, Metabolism and Life Cycle
Parvibaculum lavamentivorans is a mesophile which grows optimally at 30ºC. P. lavamentivorans tolerates NaCl concentrations of 0-3%. It is capable of using acetate, ethanol, pyruvate, succinate, alkanes (C8 – C16), and various anionic and non-ionic surfactants as a carbon source. Oxygen is the final electron acceptor. The organism is capable of performing the citrate cycle, glycolysis/gluconeogenesis, and the non-oxidative pentose-phosphate pathway.
Ecology
Parvibaculum lavamentivorans is capable of degrading 17 commercially important surfactants including linear alkylbenzenesulfonate (LAS). 2.5 million tons of LAS waste are produced each year. P. lavamentivorans degrades surfactants like LAS and releases short chain intermediates which are further degraded by local microbes.
References
Author
Page authored by Luke Pryke and Hannah Pak, students of Prof. Jay Lennon at Indiana University.