Stratified Microbial Structure and Activity in Sulfideand 1 MethaneProducing Anaerobic Sewer Biofilms 2 3 Jing Sun, Shihu Hu, Keshab Raj Sharma, Bing-Jie Ni, Zhiguo Yuan* 4 5 1 Advanced Water Management Center, The University of Queensland, St. Lucia, 4072, 6 Queensland, Australia; 7 2 CRC for Water Sensitive Cities, PO Box 8000, Clayton, Victoria, 3800, Australia 8 9 *Corresponding author 10 E...

Reduced susceptibility to sporadic colorectal cancer in native Africans (NA) is correlated with low consumption of animal products and greater microbial production of colonic methane. In this context, two hydrogenotrophic microbial groups are of interest, methanogenic Archaea (MA) utilizing H2 to produce methane and sulfate-reducing bacteria (SRB) generating hydrogen sulfide, which has been lin...

A variety of multidimensional anthropogenic activities, especially of industrial level, are contaminating our aquatic and terrestrial environments with a variety of metallic and non-metallic pollutants. The metallic and non-metallic pollutants addressed specifically in this review are heavy metals and various compound forms of sulfates, respectively. Direct and indirect deleterious effects of t...

Background: The Cariaco Basin is characterized by pronounced and predictable vertical layering of microbial communities dominated by reduced sulfur species at and below the redox transition zone. Marine water samples were collected in May, 2005 and 2006, at the sampling stations A (10°30′ N, 64°40′ W), B (10°40′ N, 64°45′ W) and D (10°43’N, 64°32’W) from different depths, including surface, red...

BACKGROUND The Cariaco Basin is characterized by pronounced and predictable vertical layering of microbial communities dominated by reduced sulfur species at and below the redox transition zone. Marine water samples were collected in May, 2005 and 2006, at the sampling stations A (10°30' N, 64°40' W), B (10°40' N, 64°45' W) and D (10°43'N, 64°32'W) from different depths, including surface, redo...

The objective of this study was to assess the effect of a rooted macrophyte Elodea nuttallii on rhizosphere bacterial communities in Hg contaminated sediments. Specimens of E. nuttallii were exposed to sediments from the Hg contaminated Babeni reservoir (Olt River, Romania) in our microcosm. Plants were allowed to grow for two months until they occupied the entirety of the sediments. Total Hg a...

Anaerobic methanotrophic archaea (ANME) play a significant role in global carbon cycles. These organisms consume more than 90% of ocean-derived methane and influence the landscape of the seafloor by stimulating the formation of carbonates. ANME frequently form cell consortia with sulfate-reducing bacteria (SRB) of the family Deltaproteobacteria. We investigated the mechanistic link between ANME...

The redox balance of inorganic sulfur in heavily polluted rivers might be disrupted, making reduction a major metabolic pathway sulfate-reducing bacteria (SRB), leading to massive accumulation S2− and blackening the water bodies. A mixed culture microbial consortium (MCMC) Citrobacter sp.sp1, Ochrobactrum sp.sp2, Stenotrophomonas sp.sp3 was used activate native sulfate-oxidizing (SOB) augment o...