Results 181 to 190 of about 11,308 (215)

Mercury tolerant diazotrophic bacteria in a long-term contaminated soil

Geoderma, 2010
Abstract The effects of heavy metals from industrial effluents on non-symbiotic nitrogen-fixing population were studied in a soil from an industrial area polluted for nearly 40 years. The work reported differences in the number of heterotrophic N 2 fixers between contaminated and a non-contaminated one, confirming the great sensitivity to metals of ...
A. Oliveira, M.E. Pampulha, M.M. Neto, A.C. Almeida   +3 more
openaire   +3 more sources

Osmotolerance of diazotrophic rhizosphere bacteria

Plant and Soil, 1991
In the genus Azospirillum tolerance towards high concentrations of sodium chloride, sucrose or polyethylene glycol increased in the order A. amazonense A. lipoferum A. brasilense and A. halopraeferens. In A. brasilense and A. halopraeferens the compatible solutes trehaloseglutamate and an unknown compound were identified. A.
A. Hartmann, S. R. Prabhu, E. A. Galinski   +2 more
openaire   +1 more source

Biogeography of diazotrophic bacteria in soils

World Journal of Microbiology and Biotechnology, 2010
This study evaluated diazotrophic bacterial diversity of soils from four different sites in South and North America. Approximately one hundred and thirty-nine thousand partial sequences of the small subunit of the bacterial ribosomal RNA gene generated for a previous study were used for this work.
Luiz Fernando Wurdig Roesch, Roberta R. Fulthorpe, Rodrigo Josemar Seminoti Jaccques, Fátima Menezes Bento, Flávio Anastácio de Oliveira Camargo   +4 more
openaire   +1 more source

Diazotrophic bacteria associated with banana (Musa spp.).

Plant and Soil, 2003
Nitrogen-fixing bacteria were isolated from surface sterilized banana (Musa spp.) plants and constituted a minor proportion of banana endophytic bacteria. Some isolates were characterized by alloenzyme profiles, biochemical tests, 16S rRNA and rpoB partial gene sequences, plasmid profiles and plant colonization.
Lucía Martínez, Jesús Caballero-Mellado, José Orozco, Esperanza Martínez-Romero   +3 more
openaire   +1 more source

Rice Endophytic Diazotrophic Bacteria

2010
The extension of nitrogen-fixing symbioses to cultivated rice has been a long-standing goal in the field of biological nitrogen fixation. Endophytic bacteria have been found in virtually every plant studied, where they colonize the internal tissues of their host plant and do not cause any harmful effect to their host plant.
Janpen Prakamhang, Nantakorn Boonkerd, Neung Teaumroong   +2 more
openaire   +1 more source

Isolation of heterotrophic diazotrophic bacteria from estuarine surface waters

Environmental Microbiology, 2013
Summary The wide distribution of diverse nitrogenase ( nifH ) genes affiliated with those of heterotrophic bacteria in marine and estuarine waters indicates ubiquity and an ecologically relevant role for heterotrophic
Farnelid, Hanna, Harder, Jens, Bentzon-Tilia, Mikkel, Riemann, Lasse   +3 more
openaire   +4 more sources

Heterotrophic bacteria outcompete diazotrophs for orthophosphate in the Mediterranean Sea

Limnology and Oceanography, 2021
AbstractUnicellular photoautotrophic diazotrophs such as Crocosphaera spp. are ubiquitous in many oligotrophic and N‐limited oceans, as they can reduce N2 into bioavailable ammonia. The Mediterranean Sea is potentially an ideal environment for photoautotrophic diazotrophic activity, and yet N2‐fixation rates measured in the last two decades are ...
Eyal Rahav, Barak Herut, Dina Spungin, Adi Levi, Margaret R. Mulholland, Ilana Berman‐Frank   +5 more
openaire   +1 more source

Isolation of endophytic diazotrophic bacteria from wetland rice

Plant and Soil, 1997
Endophytic nitrogen-fixing bacteria are believed to contribute substantial amounts of N to certain gramineous crops. We have been interested to find (a) a diazotroph(s) in rice which can aggressively and stably persist and fix nitrogen in interior tissues and (b) unique rice-diazotrophic endophyte combinations.
W. L. Barraquio, L. Revilla, J. K. Ladha
openaire   +1 more source

Enhanced maize productivity by inoculation with diazotrophic bacteria

Australian Journal of Plant Physiology, 2001
This paper originates from an address at the 8th International Symposium on Nitrogen Fixation with Non-Legumes, Sydney, NSW, December 2000 The objective of this work over the last 3 years was to identify maize–endophyte associations with increased plant productivity compared with uninoculated controls.
Patrick J. Riggs, Marisa K. Chelius, A. Leonardo Iniguez, Shawn M. Kaeppler, Eric W. Triplett   +4 more
openaire   +1 more source

Light-dark fluctuated metabolic features of diazotrophic and non-diazotrophic cyanobacteria and their coexisting bacteria

Science of The Total Environment
Cyanobacteria, the most abundant photosynthetic organisms in oceans, are tightly associated with diverse microbiota. However, the relationships between heterotrophic bacteria and cyanobacteria, particularly the diazotrophic group, are not fully understood.
Hao, Zhang, Yehui, Tan, Youping, Zhou, Jiaxing, Liu, Xiaomin, Xia   +4 more
openaire   +2 more sources