Phosphate solubilization potentials of soil Acinetobacter strains

Autor:	Nejdet Kandemir, Mehmet Ogut, Fatih Er
Rok vydání:	2010
Předmět:	Rhizosphere food.ingredient biology Inoculation Phosphorus food and beverages Soil Science chemistry.chemical_element Acinetobacter Phosphate biology.organism_classification Microbiology chemistry.chemical_compound food chemistry Gluconic acid Agar Food science Agronomy and Crop Science Incubation
Zdroj:	Biology and Fertility of Soils. 46:707-715
ISSN:	1432-0789 0178-2762
DOI:	10.1007/s00374-010-0475-7
Popis:	Many phosphate solubilizing microorganisms (PSM) require external pyrroloquinoline quinone (PQQ) for strong phosphorus (P) solubilization in vitro. The objective of this study was to isolate efficient and PQQ-independent PSM. A total of 21 PSM were isolated from the rhizosphere soil of wheat and maize grown in the pots. Acinetobacter strains were the only PQQ-independent and most effective solubilizers of tricalcium phosphate containing agar. The mean P dissolved in liquid cultures of Acinetobacter strains in a 5-day incubation ranged from 167 to 888 μg/ml P. The pH dropped to below 4.7 from 7.8 in six isolates, which produced gluconic acid in concentrations ranging between 27.5 and 37.5 mM. There was a linear regression between soluble P and gluconic acid concentrations in the bacterial cultures (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b1dba2336cd0d8c0d139daa2f68ac9f3 https://doi.org/10.1007/s00374-010-0475-7 Zobrazit plný text záznamu Full text from SpringerLink