A major percentage of fixed nitrogen (N) loss in the oceans occurs within nitrite-rich oxygen
minimum zones (OMZs) via denitrification and anammox. It remains unclear to what extent …

Archaea are diverse and ubiquitous prokaryotes present in both extreme and moderate
environments. Estuaries, serving as links between the land and ocean, harbor numerous …

Deep hypersaline anoxic basins (DHABs) are unique water bodies occurring within fractures
at the bottom of the sea, where the dissolution of anciently buried evaporites created dense …

Four mesophilic, neutrophilic, and aerobic marine ammonia-oxidizing archaea, designated
strains SCM1T, HCA1T, HCE1T and PS0T, were isolated from a tropical marine fish tank …

The salinity tolerance and osmoadaptation strategies in four phylogenetically distant
anammox species, Brocadia, Jettenia, Kuenenia, and Scalindua, were investigated by using …

Marine ammonia-oxidizing archaea of the phylum Thaumarchaeota are a cosmopolitan
group of microorganisms representing a major fraction of the picoplankton in the ocean. The …

Thaumarchaeota are globally distributed and abundant microorganisms occurring in diverse
habitats and thus represent a major source of archaeal lipids. The scope of lipids as …

Ammonia-oxidizing archaea (AOA) play a key role in the aquatic nitrogen cycle. Their
genetic diversity is viewed as the outcome of evolutionary processes that shaped ancestral …

Abstract Background Marine Group I (MGI) Thaumarchaeota, which play key roles in the
global biogeochemical cycling of nitrogen and carbon (ammonia oxidizers), thrive in the …

This chapter introduces the environmental gradients that characterize the broader Red Sea
habitat. The Red Sea is formed by an actively spreading rift and notably has only one natural …