Sporomusa silvacetica is a spore-forming, anaerobic acetogen isolated from soil derived from east central Germany. The genome contains genes of the Wood-Ljungdahl pathway required for carbon fixation and genes involved in the biosynthesis of the amino acid pyrrolysine. The genome (5.92 Mb) harbors 4,355 predicted protein-encoding genes.

A dinitrogen-bridged dimolybdenum-tetrachloride complex is prepared and reduced with Super-Hydride (LiBHEt3) to afford the corresponding dimolybdenum-dinitrogen complex together with the formation of molecular dihydrogen. This reaction proceeds via the ligand exchange of the coordinated dihydrogen generated in situ with molecular dinitrogen.

The hydrothermal vents on the East Scotia Ridge are the first to be explored in the Antarctic and are dominated by large peltospiroid gastropods, stalked barnacles (Vulcanolepas sp.) and anomuran crabs (Kiwa sp.) but their food webs are unknown. Vent fluid and macroconsumer samples were collected at three vent sites (E2, E9N and E9S) at distances of tens of metres to hundreds of kilometres apar...

The authors have developed and validated a photosynthetic-sterility model for grain production monitoring under the background of climate change and Asian economic growth in developing countries. This paper presents an application of the model to evaluate car-bonfixation rates in yields of paddy rice, winter wheat, and maize in Asia. The validation of the model is based on carbon partition-ing ...

We measured N2 fixation rates from oceanic zones that have traditionally been ignored as sources of biological N2 fixation; the aphotic, fully oxygenated, nitrate (NO(-) 3)-rich, waters of the oligotrophic Levantine Basin (LB) and the Gulf of Aqaba (GA). N2 fixation rates measured from pelagic aphotic waters to depths up to 720 m, during the mixed and stratified periods, ranged from 0.01 nmol N...

the Marine Environment # 2008 16/B978-0-12-372522-6.00035-9 All rig Else hts 1537 1 .1. N itrogen in the preoxygenated world/oceans 1537 1 .2. O xygenation of the early atmosphere: The influence of shelf area and nitrogen fixation rates 1538 2. N itrogen-Fixation, Nitrogenase, and Oxygen. Evolutionary Constraints, Adaptations of Cellular Pathways and Organisms, Feedbacks to Global Nitrogen, Car...

Carbon isotope fractionation during autotrophic growth of different bacteria which possess different autotrophic C 0 2 fixation pathways has been studied. 13C /l2C-Ratios in the cell carbon of the following bacteria were determined ( C 0 2 fixation pathway suggested or proven in paren­ theses): Alkaligenes eutrophus (reductive pentose phosphate cycle), Desulfobacterium autotrophicum and A cetob...