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Titolo:
Effect of nitrogen source on the solubilization of different inorganic phosphates by an isolate of Penicillium rugulosum and two UV-induced mutants
Autore:
Reyes, I; Bernier, L; Simard, RR; Antoun, H;
Indirizzi:
Univbecval, Fac Sci Agr & Alimentat, Dept Sols & Genie Agroalimentaire, Que Univ Laval Quebec City PQ Canada G1K 7P4 ols & Genie Agroalimentaire, Que Univ Laval, Fac Foresterie & Geomat, Ctr Rech Biol Forestiere, Quebec City, Univ Laval Quebec City PQ Canada G1K 7P4 ch Biol Forestiere, Quebec City, Agr & Agri Food Canada, Soil & Crops Res Ctr, St Foy, PQ G1V 2J3, Canada Agr & Agri Food Canada St Foy PQ Canada G1V 2J3 t Foy, PQ G1V 2J3, Canada
Titolo Testata:
FEMS MICROBIOLOGY ECOLOGY
fascicolo: 3, volume: 28, anno: 1999,
pagine: 281 - 290
SICI:
0168-6496(199903)28:3<281:EONSOT>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANIC-ACIDS; PHOSPHORUS; SOIL; ALUMINUM; BACTERIA; FUNGI; MICROORGANISMS; NUTRIENT; NITRATE; RELEASE;
Keywords:
Penicillium rugulosum; phosphate solubilization; citric acid; gluconic acid; nitrogen source; phosphate source;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Antoun, H Univillonl, Fac Sci Agr & Alimentat, Dept Sols & Genie Agroalimentaire, Pav Univ Laval Pavillon Charles Eugene Marchand Quebec City PQ Canada G1K 7P4
Citazione:
I. Reyes et al., "Effect of nitrogen source on the solubilization of different inorganic phosphates by an isolate of Penicillium rugulosum and two UV-induced mutants", FEMS MIC EC, 28(3), 1999, pp. 281-290

Abstract

The mechanisms of action of mineral phosphate solubilization (MPS) were studied in the wild-type Mps' Penicillium rugulosum strain IR94-MF1 and in negative (Mps(-)) and superpositive (Mps(++)) mutants derived from it. MPS activities were measured in liquid media using sucrose as C source, four N (arginine, nitrate, nitrate+ammonium and ammonium) and P sources (KH2PO4, hydroxyapatite, FePO4 and AlPO4). Ammonium significantly (P < 0.01) decreased phosphate solubilization, and this activity was 1-66 times higher in the Mps(++) mutant than in the wild-type depending on the P and N sources used. The Mps(+) phenotype was strongly associated with the production of gluconicor citric acids. The results also suggest for the MPS- mutant the involvement of the H+ pump mechanism in the solubilization of small amounts of phosphates. (C) 1999 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 13:20:00