Anabaena azollae
| Anabaena azollae | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Bacteria |
| Kingdom: | Bacillati |
| Phylum: | Cyanobacteriota |
| Class: | Cyanophyceae |
| Order: | Nostocales |
| Family: | Aphanizomenonaceae |
| Genus: | Trichormus |
| Species: | T. azollae
|
| Binomial name | |
| Trichormus azollae (Strasburger 1884) Komarek and Anagnostidis 1989
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| Synonyms | |
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Trichormus azollae a species of filamentous, heterocyst-forming cyanobacterium that is involved in symbiosis with various plants in the genus Azolla such as Azolla filiculoides.[1]
In terms of 16S RNA, the strain found in A. filiculoides is very close to Anabaena oscillarioides with 99.3% identity.[2] The many "Azolla cyanobiont" 16S sequences as recorded on NCBI GenBank do not neatly form a cluster that excludes other named cyanobacterial species; high-identity (> 98.7%) matches include Anabaena azotica and Wollea saccata.
The genome of a strain known as 0708, isolated from A. filiculoides, has been sequenced.[3] Contrary to 16S comparison results, GTDB Release 10 does find enough genomic diveregence between A. azotica (Trichormus azoticus) and T. azollae (Trichormus_B azollae) for them to be separate species. It goes further to put them in separate genera.[4]
References
- ^ Plazinski, J.; Franche, C.; Liu, C. -C.; Lin, T.; Shaw, W.; Gunning, B. E. S.; Rolfe, B. G. (May 1988). "Taxonomic status of Anabaena azollae: An overview". Plant and Soil. 108 (1): 185–190. Bibcode:1988PlSoi.108..185P. doi:10.1007/BF02370114.
- ^ Papaefthimiou, D; Van Hove, C; Lejeune, A; Rasmussen, U; Wilmotte, A (February 2008). "DIVERSITY AND HOST SPECIFICITY OF AZOLLA CYANOBIONTS1". Journal of Phycology. 44 (1): 60–70. Bibcode:2008JPcgy..44...60P. doi:10.1111/j.1529-8817.2007.00448.x. PMID 27041041.
- ^ "Home - 'Nostoc azollae' 0708". genome.jgi.doe.gov. Retrieved 2025-03-01.
- ^ "GTDB - Tree: g__Trichormus_B". gtdb.ecogenomic.org.