Results 41 to 50 of about 11,308 (215)

Iron Homeostasis in Azotobacter vinelandii

Biology, 2023
Iron is an essential nutrient for all life forms. Specialized mechanisms exist in bacteria to ensure iron uptake and its delivery to key enzymes within the cell, while preventing toxicity.
Elena Rosa-Núñez, Carlos Echavarri-Erasun, Alejandro M. Armas, Viviana Escudero, César Poza-Carrión, Luis M. Rubio, Manuel González-Guerrero   +6 more
doaj   +1 more source

Density and diversity of diazotrophic bacteria isolated from Amazonian soils using N-free semi-solid media

Scientia Agricola, 2011
Non-symbiotic diazotrophic bacteria are amongst the most important functional groups of soil-dwelling microorganisms. These bacteria contribute to plant growth predominantly through biological N2 fixation.
Krisle da Silva, Rafaela Simão Abrahão Nóbrega, Adriana Silva Lima, Alexandre Barberi, Fatima Maria de Souza Moreira   +4 more
doaj   +1 more source

The spatial scale dependence of diazotrophic and bacterial community assembly in paddy soil [PDF]

, 2019
Aim: The factors driving microbial community β-diversity (variation in composition) at different spatial scales yield fundamental insights into the mechanisms that maintain ecosystem biodiversity, which as yet are uncertain.
Cheng, J, Chu, H, Feng, J, Gao, Q, Guo, X, Hale, L, Liang, Y, Ning, D, Qi, Q, Qin, Y, Sun, B, Tian, R, Wang, M, Wu, L, Wu, L, Yang, Y, Zhao, J, Zhao, M, Zhou, J   +18 more
core   +1 more source

Molecular Characterization of Diazotrophic and Denitrifying Bacteria Associated with Mangrove Roots [PDF]

Applied and Environmental Microbiology, 2007
ABSTRACT An analysis of the molecular diversity of N 2 fixers and denitrifiers associated with mangrove roots was performed using terminal restriction length polymorphism (T-RFLP) of nifH (N 2 fixation) and nirS and nirK
Ana L, Flores-Mireles, Stephen C, Winans, Gina, Holguin   +2 more
openaire   +2 more sources

Seasonal modulation of mesoscale processes alters nutrient availability and plankton communities in the Red Sea [PDF]

, 2019
Hydrographic and atmospheric forcing set fundamental constraints on the biogeochemistry of aquatic ecosystems and manifest in the patterns of nutrient availability and recycling, species composition of communities, trophic dynamics, and ecosystem ...
Al-Aidaroos, Ali M., Capone, Douglas G., Devassy, Reny P., El-Sherbiny, Mohsen M., Irigoien, Xabier, Jones, Burton H., Kürten, Benjamin, Schulz, Isabelle K., Struck, Ulrich, Zarokanellos, Nikolaos D.   +9 more
core   +1 more source

Potassium solubilization in phonolite rock by diazotrophic bacteria

Comunicata Scientiae, 2017
Some strains of nitrogen fixing bacteria, besides fixing the N2, can produce phytohormones, control pathogens, act in solubilization of minerals containing phosphorus (P) and potassium (K), contributing to plant growth. However, the solubilization of minerals containing K has been little exploited.
Florentino, Ligiane Aparecida, Rezende, Adauton Vilela, Miranda, Cássia Cristina Bachião, Mesquita, Aline Carvalho, Mantovani, José Ricardo, Bianchini, Hudson Carvalho   +5 more
openaire   +3 more sources

Temporal variations of biological nitrogen fixation and diazotrophic communities associated with artificial seaweed farms

Frontiers in Marine Science
Diazotrophic communities contribute inorganic nitrogen for the primary productivity of the marine environment by biological nitrogen fixation (BNF).
Pengbing Pei, Muhammad Aslam, Muhammad Aslam, Chunyou Yang, Peilin Ye, Xiao Ke, Zhanhua Liang, Tangcheng Li, Weizhou Chen, Hong Du, Hong Du   +10 more
doaj   +1 more source

Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina [PDF]

, 2018
The aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R ...
Huidobro, Jorgelina, Meriles, Jose Manuel, Meyer, Annabel, Perez Brandan, Carolina Gabriela, Schloter, Michael, Vargas Gil, Silvina   +5 more
core   +1 more source

Diazotrophic bacteria and nitrogen fertilization on the growth of micropropagated pineapple plantlets during acclimatization

Ciência Rural
: This study examines the effect of inoculation with diazotrophic bacteria and nitrogen fertilization on the growth of micropropagated pineapple cv. 'Vitória' plantlets during the acclimatization period.
Aurilena de Aviz Silva, Almy Junior Cordeiro de Carvalho, Flávia Paiva de Freitas, Patrícia Gomes de Oliveira Pessanha, Paulo Cesar dos Santos, Mírian Peixoto Soares da Silva, Tábatha de Souza Vasconcelos, Fábio Lopes Olivares   +7 more
doaj   +1 more source

PHYSIOLOGICAL CHARACTERIZATION OF DIAZOTROPHIC BACTERIA ISOLATED FROM Brachiaria brizantha RHIZOSPHERE [PDF]

Revista Caatinga, 2019
ABSTRACT The objective of this study was to evaluate the ability of diazotrophic bacteria isolated from Brachiaria brizantha rhizosphere to grow at different pH values and salt concentrations, to produce indoleacetic acid (IAA), and to solubilize phosphate. Both acidity and salinity tolerance tests were performed on modified solid FAM medium.
ANA BEATRIZ CARVALHO TERRA, FLÁVIA ROMAM DA COSTA SOUZA, JOSÉ RICARDO MANTOVANI, ADAUTON VILELA DE REZENDE, LIGIANE APARECIDA FLORENTINO   +4 more
openaire   +3 more sources