Azotobacter


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Related to Azotobacter: Endospores

Azotobacter

[ə′zōd·ə‚bak·tər]
(microbiology)
A genus of large, usually motile, rod-shaped, oval, or spherical bacteria in the family Azotobacteraceae; form thick-walled cysts, and may produce large quantities of capsular slime.
References in periodicals archive ?
Los FO con sus diferentes dosis incrementaron significativamente las densidades de bacterias de los grupos Azospirillum, Azotobacter, BSP y BSK en suelo a distancia y en la rizosfera de CT en comparacion con los tratamientos testigo absoluto y fertilizado con urea (Tablas 3 y 4).
A diverse array of bacteria including species of Rhizobium, Pseudomonas, Azospirillum, Azotobacter, Bacillus, Burkholderia, Klebsiella, Enterobacter, Xanthomonas, Serratia and many others have been shown to promote plant growth (Vessey, 2003; Bashan et al., 2004).
Preservacao de celulas vegetativas de Azotobacter chroococcum em polimeros secos
Nine bacterial strains were used: Azospirillum brasilense (C16 and SP7), Azospirillum lipoferum C15, Azotobacter chroococcum AC1 and AC10, Azotobacter vinelandii AV5, Bradyrhizobium japonicum USDA110, Rhizobium sp.
Encystment of Azotobacter nigricans grown diazotrophically on kerosene as sole carbon source.
It has been reported that inoculation with auxin-releasing Azotobacter strains increases growth, yield, and nitrogen uptake in wheat and maize and that the combined application of Azotobacter and tryptophan, which is often implicated in IAA synthesis, enhances plant growth in a greater extent [5, 9, 10].
The predominant bacterial genera identified were Bacillus, Pseudomonas, Desulfotomaculum, Desulfovibrio, Desulfomonas, Methylococcus, Vibrio, Micrococcus, Klebsiella and Azotobacter.
Azotobacter, free living nitrogen fixing bacteria is considered as economical, low cost bio-fertilizer in agricultural productions.
The bacteria were Bacillus subtilis, Pseudomonas putida, Pseudomonas fluorescens, Azotobacter beijerinckii, Micrococcus luteus, Bacillus pumilus, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Streptococcus salivarius, Bacillus megaterium and Staphylococcus saprophyticus.
(2008) quienes observaron estimulacion de la germinacion de semillas de pimenton y maiz al ser inoculadas con Azospirillum, Rizobium o Azotobacter. Igualmente Yadegari y Rahamani (2010) obtuvieron mayores porcentajes de germinacion en el cultivo del frijol al inocular semillas con cepas de Rhizobium o combinacion de Rhizobium y Pseudomonas fluorescens P-93.
Azotobacter development is usually found in chernozems in the spring, during the wet season; while is hardly found in dryland soil (Karaguyshieva and Illyaletdinov, 1957).