Analysis of the denitrification pathway and greenhouse gases emissions in Bradyrhizobium sp. strains used as biofertilizers in South America

Journal of Applied Microbiology
M ObandoF Cassán

Abstract

Greenhouse gases are considered as potential atmospheric pollutants, with agriculture being one of the main emission sources. The practice of inoculating soybean seeds with Bradyrhizobium sp. might contribute to nitrous oxide (N2 O) emissions. We analysed this capacity in five of the most used strains of Bradyrhizobium sp. in South America. We analysed the denitrification pathway and N2 O production by Bradyrhizobium japonicum E109 and CPAC15, Bradyrhizobium diazoefficiens CPAC7 and B. elkanii SEMIA 587 and SEMIA 5019, both in free-living conditions and in symbiosis with soybean. The in silico analysis indicated the absence of nosZ genes in B. japonicum and the presence of all denitrification genes in B. diazoefficiens strains, as well as the absence of nirK, norC and nosZ genes in B. elkanii. The in planta analysis confirmed N2 O production under saprophytic conditions or symbiosis with soybean root nodules. In the case of symbiosis, up to 26.1 and 18.4 times higher in plants inoculated with SEMIA5019 and E109, respectively, than in those inoculated with USDA110. The strains E109, SEMIA 5019, CPAC15 and SEMIA 587 showed the highest N2 O production both as free-living cells and in symbiotic conditions in comparison with USDA110...Continue Reading

References

Aug 1, 1983·Archives of Microbiology·B Regensburger, H Hennecke
May 7, 2004·Applied and Environmental Microbiology·Reiko Sameshima-SaitoKiwamu Minamisawa
Apr 7, 2006·Applied and Environmental Microbiology·Reiko Sameshima-SaitoKiwamu Minamisawa
Jun 17, 2006·Antonie van Leeuwenhoek·Jorge MonzaEulogio J Bedmar
Jul 11, 2006·Journal of Environmental Quality·Timothy B Parkin, Thomas C Kaspar
Feb 26, 2010·BMC Plant Biology·Adoración ZafraJuan de Dios Alché
Apr 7, 2010·Molecular Plant-microbe Interactions : MPMI·Cristina SánchezMaría J Delgado
Oct 22, 2010·Journal of Clinical Microbiology·Katia JatonGilbert Greub
Dec 28, 2010·Trends in Plant Science·Kapuganti J GuptaJoost T van Dongen
Sep 7, 2011·Plant Science : an International Journal of Experimental Plant Biology·Eliane MeilhocRenaud Brouquisse
Nov 22, 2011·Antioxidants & Redox Signaling·Emilio BuenoMaria J Delgado
Feb 2, 2013·AoB Plants·Luis A J MurKapuganti J Gupta
Jan 23, 2015·International Journal of Systematic and Evolutionary Microbiology·Alvaro PeixEncarna Velázquez
Aug 15, 2017·Trends in Microbiology·Sara HallinChristopher M Jones

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.