ArticleJournal of bacteriology2010
The MG1363 and IL1403 laboratory strains of Lactococcus lactis and several dairy strains are diploid.
Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Draft genome sequences and comparative analyses of Spiroplasma citri strains from various hosts.Folia microbiologica · 2026Article
- Ploidy is an important determinant of fluoroquinolone persister survival.Current biology : CB · 2021Article
- Counting Chromosomes in Individual Bacteria to Quantify Their Impacts on Persistence.Methods in molecular biology (Clifton, N.J.) · 2021Article
- Novel Chromosome Organization Pattern inmBio · 2017Article
- Use of genetically modified bacteria for drug delivery in humans: Revisiting the safety aspect.Scientific reports · 2017Article
- Polyploidy in haloarchaea: advantages for growth and survival.Frontiers in microbiology · 2014Review
- Altered Gene Expression and Intracellular Changes of the Viable But Nonculturable State in Ralstonia solanacearum by Copper Treatment.The plant pathology journal · 2013Article
- Oxidative stress at high temperatures in Lactococcus lactis due to an insufficient supply of Riboflavin.Applied and environmental microbiology · 2013Article
- Food environments select microorganisms based on selfish energetic behavior.Frontiers in microbiology · 2013Article
- Systems biology of lactic acid bacteria: a critical review.Microbial cell factories · 2011Review
- Selection systems based on dominant-negative transcription factors for precise genetic engineering.Nucleic acids research · 2010Article
- An extreme thermophile, Thermus thermophilus, is a polyploid bacterium.Journal of bacteriology · 2010Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bacteria are normally haploid, maintaining one copy of their genome in one circular chromosome. We have examined the cell cycle of laboratory strains of Lactococcus lactis, and, to our surprise, we found that some of these strains were born with two complete nonreplicating chromosomes. We determined the cellular content of DNA by flow cytometry and by radioactive labeling of the DNA. These strains thus fulfill the criterion of being diploid. Several dairy strains were also found to be diploid while a nondairy strain and several other dairy strains were haploid in slow-growing culture. The diploid and haploid strains differed in their sensitivity toward UV light, in their cell size, and in their D period, the period between termination of DNA replication and cell division.
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Registered trials
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