Given that tau hyperphosphorylation precedes aggregation, and tau aggregates are obligately
phosphorylated in AD brain, phosphorylation has been suggested as a primary trigger for tau aggregation.
They are obligately
dependent on the fungi they grow, though displaying great variation in their ecology (Mehdiabadi & Schultz 2010).
When a hypolimnion remains anoxic, obligately
anaerobic prokaryotic populations, including Archaeal methanogens, presumably increase, but a lake that never has an oxygenated hypolimnion due to salt-induced stratification likely produces more methane because conditions that favor methanogen growth are persistent.
Individual variation in feeding habitat use by adult female green sea turtles (Chelonia mydas): are they obligately
Sorokin DY, Teske A, Robertson LA, Kuenen JG (1999) Anaerobic oxidation of thiosulfate to tetrathionate by obligately
heterotrophic bacteria, belonging to the Pseudomonas stutzeri group.
Other microorganisms associated with kefir are the homofermentative strains Lactobacillus acidophilus and Lactobacillus kefirgranum, the obligately
heterofermentative strains Lactobacillus kefir and Lactobacillus parakefir (103).
The taxonomy and natural history of ants of the genus Crematogaster Lund, 1831 (Crematogaster borneensis-group of the former subgenus Decacrema) obligately
associated with myrmecophytic host-plants of the euphorb genus Macaranga are reviewed.
Cook GM, Rainey FA, Patel BKC & Morgan HW (1996) Characterization of a New Obligately
Anaerobic Thermophile, Thermoanaerobacter wiegelii sp.
Bacteroides, which is a genus of gram-negative and an obligately
anaerobic bacteria, possesses an effective barrier to hydrophobic molecules and therefore can metabolize hydrophobic amino acids including tyrosine and tryptophan as well as aromatic amino acids into phenols, indoles and their precursors (Smith and Macfarlane, 1998; Van der Meulen et al.
nov, sp nov, the obligately
intracellular bacterium of porcine proliferative enteropathy.
55,56) These compounds are diagenetic derivatives of photosynthetic pigments, isorenieratene and bacteriochlorophylls e, respectively, from obligately
anaerobic green sulfur bacteria.
Brevibacteria are nonmotile, nonfastidous, chemoorganothrophic, obligately
aerobic, rod-shaped, halotolerant (> 6.