Bacteria sediments

CS2 and COS occur in the atmosphere in significant amounts - CS2, 3.8-4.7 Tg S yr-1, COS, 2.7-3.5 Tg S yr-1 one-fifth to one quarter of these amounts are probably anthropogenic. Biogenic CS2 mainly originates in marine settings - anaerobic sediments (bacteria) and salt marshes with a role for Spartina alterniflora.6,10 Some terrestrial plants produce CS2 and tree roots are another source, usually after cutting or wetting. A tree of central America, Stryphnodendron excelsum. can be detected by its CS2 odor.10... 

Iron-reducing bacteria from a copper-contaminated sediment were more tolerant of copper adsorbed to hydrous ferric oxide (HFO) than were pristine-sediment bacteria (Markwiese et al. 1998). Copper-tolerant bacteria were more efficient in reducing contaminated HFO, with greater potential for copper mobilization in aquatic sediments (Markwiese et al. 1998). 

Petroleum hydrocarbons may enter the enviromnent through accidents, from industrial releases, or as by-products from commercial or private uses such as direct release into water through spills or leaks. When release into water occurs, some of the hydrocarbons float on the water and form surface films, while others may sink and form bottom sediments. Bacteria and microorganisms in the water have the potential to break down some of the hydrocarbons over varying periods of time that are dependent on the ambient conditions. On the other hand, hydrocarbons that are spilled onto the soil may remain for a long time. 

Steward CC, Lovell CR (1997) Respiration and Assimilation of 4-Bromophenol by Estuarine Sediment Bacteria. Microb Ecol 33 198... 

Do, H. K., Kogure, K., and Simidu, U., Identification of deep-sea sediment bacteria which produce tetrodotoxin, Appl. Environ. Microbiol., 56, 1162, 1990. 

The first enantioselective polyene tetracydization starting with a chiral epoxide was reported by Corey et al. in 1997 [8a]. The silylated enol ether 3 (Scheme 1) was converted into the tetracycle 4 by treatment with the Lewis acid MeAlCl2 at -90 °C. The synthetic route is modeled on the biosynthesis of lanosterol from (3S)-squalene 2,3-epoxide and has also been applied to the biomimetic synthesis of tetracyclic polyprenoids from sediment bacteria [8b]. 

Nitrogen fixation by sediment bacteria and cyanobacteria in algal turfs... 

Figure 10. Alkane degradation by sediment bacteria from (O) Eastern Bay and (9) Colgate Creek...

Nealson KH (1997) Sediment bacteria Who s there, what are they doing and what s new Annual Reviews of Earth and Planetary Science 25 403-434. 

Khoshmanesh et al. (2002) Wetland, river sediment bacteria Solution Australia... 

Khoshmanesh, A., Hart, B.T., Duncan, A. and Beckett, R. (2002) Luxury uptake of phosphorus by sediment bacteria. Water Research 36, 774-778. 

Fig. 2.8 SEM micrographs showing the colonization of various microorganisms on the surface of (a, b) P(3HB) (c, d) P(3HB-co-5 mol% 3HV) and (e, f) P(3HB-co-5 mol% 3HHx) films at fourth week of incubation in mangrove sediment. Bacteria with coccal morphology seen attached to the PHA surface in a and f. Pennate diatoms were seen dividing on the film surface in b and d. In c, arrow indicates the growth of fungal hyphae on the film surface whereas hemispherical cavities caused by bacterial degradation are indicated by arrows in e...

Walker, J.D., J.J. Calomiris, T.L. Herbert, and R.R. Colwell. 1976a. Petroleum hydrocarbons degradation and growth potential for Atlantic Ocean sediment bacteria. Marine Biology 34 1-9. 

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