geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The nucleotide sequence of the 16s ribosomal rna gene and flanking regions from methanobacterium formicicum the phylogenetic relationship between methanogenic and halophilic archaebacteria


, : The nucleotide sequence of the 16s ribosomal rna gene and flanking regions from methanobacterium formicicum the phylogenetic relationship between methanogenic and halophilic archaebacteria. Systematic & Applied Microbiology 6(2): 157-163

By blot hybridization experiments it was demonstreated that Methanobacterium formicicum possesses two putative rDNA transcriptional units of the eubacterial type (5'-16S-tRNAAla-23S-5S-3'). Fragments of each unit which contain the 16S rRNA gene plus flanking regions were cloned and their nucleotide sequences determined. The 16S rRNA encoding sequence was compared to the respective sequences of Methanococcus vannielii, Halobacterium voleanii, Halobacterium cutirubrum and Halococcus morrhuae. The following results were obtained: (i) The three halophiles share an equal evolutionary distance; (ii) the Methanococcus and Methanobacterium sequences are more closely related than previously indicated by the SAB values; the evolutionary distance between Methanobacterium and the halophile sequences is less than the one exhibited by the Methanococcus structure; (iii) the evolutionary rates of the sequences are quite different; the Methanobacterium formicium sequence exhibits an evolutionary rate somewhat lower than the Methanococcus structure and is drastically different from the high genetic drift of the halophile small subunit rRNA's.

US$29.90


Other references

Heins, B.D.; Nydam, D.V.; Woolums, A.R.; Berghaus, R.D.; Overton, M.W., 2015: Comparative efficacy of enrofloxacin and tulathromycin for treatment of preweaning respiratory disease in dairy heifers. Preweaning respiratory disease continues to have a substantial effect on the current and future productivity of dairy replacement animals. Establishing an effective treatment plan for the preweaned calf may have a significant effect on well-being...

Boriskin, Yuri S.; Moore, Philippa; Murday, Andrew J.; Booth, James C.; Butcher, Philip D., 1999: Human cytomegalovirus genome sequences in lymph nodes. Human cytomegalovirus (CMV) is a major cause of morbidity in heart and lung transplant patients, resulting from immunosuppression-mediated reactivation of latent CMV originating either from the transplanted tissue, or the recipient. We showed that...

Porzio, S.; Bossù, P.; Ruggiero, P.; Boraschi, D.; Tagliabue, A., 2004: Mucosal delivery of anti-inflammatory IL-1Ra by sporulating recombinant bacteria. Background: Mucosal delivery of therapeutic protein drugs or vaccines is actively investigated, in order to improve bioavailability and avoid side effects associated with systemic administration. Orally administered bacteria, engineered to produce...

Baratz D.M.; Westbrook P.R.; Shah P.K.; Mohsenifar Z., 1991: Acute hemodynamic effects of nasal continuous positive airway pressure cpap in congestive heart failure chf. Clinical Research 39(1): 76A

Battarbee, A.N.; Yee, L.M., 2017: Barriers to Postpartum Follow-Up and Glucose Tolerance Testing in Women with Gestational Diabetes Mellitus. American Journal of Perinatology

Bleyer, Leo, 1929: The cell-free transmission of malignant tumors in relation to the question of the parasitic origin of neoplasms. A critical review of the experimental work on cell-free transmission of malignant tumors in relation to the theory of a parasitic origin of neoplasms. The experimental transmission of malignant tumors is not exclusively confined to the presence of...

Wrong, O.M.; Harland, C.E., 2005: Sevelamer-induced acidosis. Kidney International 67(2): 776-7; Author Reply 777

Hemmi, S.; Bohni, R.; Aguet, M., 1993: Expression cloning of a species-specific interferon-gamma receptor accessory component. Journal of Interferon Research 13(SUPPL 1): S55

Hultén, O., 1970: Contractions of the gallbladder and the formation of gallstones. 3. Acta Chirurgica Scandinavica 136(1): 53-56

Johansen, Hans, 1966: The birds of Fireland. Videnskab Medd Dan Naturhist Foren Kobenhavn: 15-260