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  2. Bacteria - Wikipedia

    en.wikipedia.org/wiki/Bacteria

    Most bacteria have a single circular chromosome that can range in size from only 160,000 base pairs in the endosymbiotic bacteria Carsonella ruddii, [125] to 12,200,000 base pairs (12.2 Mbp) in the soil-dwelling bacteria Sorangium cellulosum. [126]

  3. Bacterial genome - Wikipedia

    en.wikipedia.org/wiki/Bacterial_genome

    Bacterial genomes are generally smaller and less variant in size among species when compared with genomes of eukaryotes.Bacterial genomes can range in size anywhere from about 130 kbp [1] [2] to over 14 Mbp. [3]

  4. Ultramicrobacteria - Wikipedia

    en.wikipedia.org/wiki/Ultramicrobacteria

    Ultramicrobacteria are bacteria that are smaller than 0.1 μm 3 under all growth conditions. [1] [2] [3] This term was coined in 1981, describing cocci in seawater that were less than 0.3 μm in diameter. [4]

  5. Smallest organisms - Wikipedia

    en.wikipedia.org/wiki/Smallest_organisms

    With a size of approximately 200 to 300 nm, M. genitalium is an ultramicrobacterium, smaller than other small bacteria, including rickettsia and chlamydia. However, the vast majority of bacterial strains have not been studied, and the marine ultramicrobacterium Sphingomonas sp. strain RB2256 is reported to have passed through a 220 nm (0.00022 ...

  6. Thiomargarita namibiensis - Wikipedia

    en.wikipedia.org/wiki/Thiomargarita_namibiensis

    The most bacteria were obtained from the upper 3cm of sediment in the sample, with concentrations decreasing exponentially past this point. [18] Here, Thiomargarita namibiensis is easily suspended in moving ocean currents due to the sheath around the cells, which makes it easy for the bacteria to passively float. [ 19 ]

  7. Genome size - Wikipedia

    en.wikipedia.org/wiki/Genome_size

    Genome size ranges (in base pairs) of various life forms. Genome size is the total amount of DNA contained within one copy of a single complete genome.It is typically measured in terms of mass in picograms (trillionths (10 −12) of a gram, abbreviated pg) or less frequently in daltons, or as the total number of nucleotide base pairs, usually in megabases (millions of base pairs, abbreviated ...

  8. List of pathogens by size - Wikipedia

    en.wikipedia.org/wiki/List_of_pathogens_by_size

    Size Reference Flatworm animal: Eucestoda: Tapeworm: length (maximum) 25 m: Eucestoda: Nematode animal: Loa loa: Loa loa: length (female) 20–70 mm: Loa loa: Arthropod animal: Cymothoa exigua: Tongue-eating louse: length (female) 8–29 mm: Cymothoa exigua: Nematode animal: Enterobius: Pinworm: length (female) 8–13 mm: Pinworm (parasite ...

  9. Prochlorococcus - Wikipedia

    en.wikipedia.org/wiki/Prochlorococcus

    The size of Prochlorococcus (0.5 to 0.7 μm) ... This wide range of latitude along with the bacteria's ability to survive up to depths of 100 to 150 metres, ...