Heliobacterium modesticaldum Ice1
Names | Heliobacterium modesticaldum Ice1 |
---|---|
Accession numbers | NC_010337 |
Background | Heliobacteria are the only photosynthetic Firmicutes. They are unique in using bacteriochlorophyll g as their major antennae pigment and an oxidized form of chlorophyll a, 8(1)-hydroxy-Chla as the primary electron acceptor for a type I reaction center (RC, related to photosytem I of oxygenic organisms). Unlike other anoxygenic bacteria they do not have any bacteriochlorophyll-containing internal membranes; pigments are found associated with RCs in the cell membrane. They also have unique carotenoids. Although photosynthetic they are obligatorily heterotrophic, as they have only a limited capacity for carbon metabolism, however they are capable of nitrogen fixation. Heliobacteria are capable of sporulation, although it occurs only rarely in pure cultures. Heliobacterium modesticaldum strain Ice1, the type strain of this species, was isolated from Icelandic hot spring volcanic soils. It grows optimally above 50 degrees Celsius, grows best photoheterotrophically, but can grow in the dark chemotrophically on pyruvate. (HAMAP: HELMI) |
Taxonomy | |
Kingdom: | Bacteria |
Phylum: | Firmicutes |
Class: | Clostridia |
Order: | Clostridiales |
Family: | Heliobacteriaceae |
Genus: | Heliobacterium |
Species: | modesticaldum |
Strain | Ice1 |
Complete | Yes |
Sequencing centre | (01-APR-2008) Pharmaceutical Genomics Division, Translational Genomics Research Institute, 13208 E Shea Blvd, (13-AUG-2009) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA (24-JAN-2008) Pharmaceutical Genomics Division, Translational Genomics Research Institute, 13208 E Shea Blvd, |
Sequencing quality | Level 6: Finished |
Sequencing depth | NA |
Sequencing method | NA |
Isolation site | hot spring microbial mats and volcanic soil in Iceland |
Isolation country | Iceland |
Number of replicons | 1 |
Gram staining properties | Negative |
Shape | Bacilli |
Mobility | Yes |
Flagellar presence | Yes |
Number of membranes | 1 |
Oxygen requirements | Anaerobic |
Optimal temperature | 50.0 |
Temperature range | Thermophilic |
Habitat | Multiple |
Biotic relationship | Free living |
Host name | NA |
Cell arrangement | NA |
Sporulation | Sporulating |
Metabolism | NA |
Energy source | Photosynthetic, Phototroph |
Diseases | NA |
Pathogenicity | No |
Glycolysis / Gluconeogenesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Peptidoglycan biosynthesis
C5-Branched dibasic acid metabolism
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Vitamin B6 metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Histidine metabolism
Phenylalanine, tyrosine and tryptophan biosynthesis
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Peptidoglycan biosynthesis
C5-Branched dibasic acid metabolism
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Vitamin B6 metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Sulfur metabolism
Aminoacyl-tRNA biosynthesis