Microcystis aeruginosa NIES-843

Microcystis_aeruginosa
Names Microcystis aeruginosa NIES-843
Accession numbers NC_010296
Background Microcystis is a gas-vacuolated, bloom-forming cyanobacteria which is distributed from cold to tropical climates. They are coccoid, form aggregates and have an amorphous mucilage sheath. They produce various toxins which cause death in their fresh-water habitats and to other animals in those food chains. While they have been divided into 5 morphospecies, this division has been questioned and they have been recently reunited with this strain, M.aeruginosa strain NIES-843 as the type strain. NIES-843 produces (by non-ribosomal peptide synthesis, NRPS) microcystin, a hepatotoxin, cyanopeptolin, a chymotrypsin inhibitor and encodes novel NRPS gene clusters as well, although no other peptides have been reported to be produced by this strain. Almost 12% of the genome is composed of insertion sequences and small transposable elements. (HAMAP: MICAN)
Taxonomy
Kingdom:Bacteria
Phylum:Cyanobacteria
Class:NA
Order:Chroococcales
Family:NA
Genus:Microcystis
Species:aeruginosa
Strain NIES-843
Complete Yes
Sequencing centre (21-JUL-2006) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
(22-NOV-2007) Contact:Takakazu Kaneko Kazusa DNA Research Institute, Dept.of Plant Genome Research
2-6-7 Kazusa-kamatari,
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method Sanger
Isolation site Lake Kasumigaura Ibaraki Japan from Otsuka, Shigeto
Isolation country Japan
Number of replicons 1
Gram staining properties Negative
Shape Cocci
Mobility No
Flagellar presence No
Number of membranes 2
Oxygen requirements Aerobic
Optimal temperature NA
Temperature range Mesophilic
Habitat Aquatic
Biotic relationship Free living
Host name Homo sapiens
Cell arrangement Singles
Sporulation NA
Metabolism NA
Energy source Autotroph
Diseases Cyanobacterial hepatotoxicosis, gastroenteritis, skin irritation
Pathogenicity No