Incidence and diversity of phosphate-solubilising bacteria are linked to phosphorus status in grassland soils

The extent to which soil phosphorus (P) status affected the incidence of soil phosphate-solubilising bacteria (PSB) and their taxonomic abundance and diversity was examined at three long-term fertiliser trials (Whatawhata, Winchmore and Ballantrae) in New Zealand. Bacteria were isolated from rhizosp...

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Veröffentlicht in:	Soil biology & biochemistry 2012-01, Vol.44 (1), p.93-101
Hauptverfasser:	Mander, Carolyn, Wakelin, Steve, Young, Sandra, Condron, Leo, O’Callaghan, Maureen
Format:	Artikel
Sprache:	eng
Schlagworte:	Actinobacteria Agronomy. Soil science and plant productions Bacterial diversity Biochemistry and biology Biological and medical sciences Chemical, physicochemical, biochemical and biological properties Fundamental and applied biological sciences. Psychology General agronomy. Plant production Long-term P fertilisation Moraxellaceae Nitrogen, phosphorus, potassium fertilizations Phosphate-solubilising bacteria Phosphorus Physics, chemistry, biochemistry and biology of agricultural and forest soils Pseudomonadaceae Pseudomonads Rhizosphere Soil P status Soil science Soil-plant relationships. Soil fertility. Fertilization. Amendments
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Zusammenfassung:	The extent to which soil phosphorus (P) status affected the incidence of soil phosphate-solubilising bacteria (PSB) and their taxonomic abundance and diversity was examined at three long-term fertiliser trials (Whatawhata, Winchmore and Ballantrae) in New Zealand. Bacteria were isolated from rhizosphere (ryegrass and clover) and non-rhizosphere soils differing in P status. The P-solubilising phenotype was determined on agar supplemented with sparingly-soluble mineral phosphates (Ca2OH(PO4)3 and CaHPO4). The frequency of P-solubilisation in the bacterial population was significantly greater (P
ISSN:	0038-0717 1879-3428
DOI:	10.1016/j.soilbio.2011.09.009