Journal of marine science research & development is one of the best open access journals in the field of earth science. The open access policy of the journals mainly aims at increasing the visibility and accessibility of the published quality work and thus providing the desirable researches to the readers.
Nitrogen fixation is a process by which nitrogen, which is present in the atmosphere as free form is converted into ammonium (NH4+). Atmospheric nitrogen or molecular nitrogen (N2) is relatively inert and it does not easily react with other compounds to form new components. The fixation process frees up the nitrogen atoms from their diatomic form (N2) to be used in other ways.
Nitrogen fixation in both the forms like natural and synthetic is very much essential for all forms of life because N2 is required to biosynthesize the basic building blocks of living things such as plants, animals and other life forms, e.g., nucleotides for DNA and RNA and amino acids for proteins. Therefore nitrogen fixation is very much essential for agriculture as well for manufacture of fertilizers. It is also used in the manufacture of explosives etc. Nitrogen fixation also occurs naturally in air by means of lightning. It also refers to other biological conversions of nitrogen, such as its conversion to NO2. Microorganisms that can fix nitrogen are prokaryotes (both bacteria and archaea, distributed throughout their respective kingdoms) called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbiosis) with diazotrophs.
Cyanobacteria are oxygenic photosynthetic bacteria that are widespread in marine, freshwater and terrestrial environments. Most of them are capable of fixing atmospheric nitrogen but ironically, important enzyme nitrogenase, is responsible for the reduction of N2, is extremely sensitive to O2. Therefore oxygenic photosynthesis and nitrogen fixation are not compatible. The organisms living in aquatic nature possess several types of the enzyme complexes which help in catalyzing N2 fixation and/or H2 formation. The two cyanobacterial Ni hydrogenases are differentiated as either uptake or bidirectional hydrogenases. The different forms of both the nitrogenases and hydrogenases are encoded by different sets of genes, and their organization on the chromosome can vary from one cyanobacterium to another.
OMICS Group offers an opportunity and a forum of Open Access Scholarly Published Articles (OASPA) for bringing together all the scientific communities of Open Access journal publishers. The main mission is to expose, spread the areas of Open Access (OA) journals and book publishers globally in all Fields such as environmental, Life sciences, clinical, technical, engineering models and scholarly disciplines. The goal to spread knowledge via exchanging information from subject to subject, easy access through information technologies, setting standards, Innovative models, and promoting innovation. We can ensure a prosperous and sustainable future to the benefit of our members and the scholarly communities they serve.
OMICS group is now providing an opportunity to authors to share their valuable research on virology across linguistic borders in different languages such as French, German, Spanish, Chinese, Japanese, and English. By translating scientific paper into the mentioned languages we ensure an efficient exchange of knowledge and scientific experience. The translation process is always followed by strict review procedures to ensure absolute correctness. We believe that translation services perform a key role in the emergence of a connected scholarly community.
Last date updated on June, 2014