Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Indole acetic acid and phytase activity produced by rhizosphere bacilli as affected by pH and metals
AU - Acuna, J. J.
AU - Jorquera, M. A.
AU - Martinez, O. A.
AU - Menezes-Blackburn, D.
AU - Fernandez, M. T.
AU - Marschner, P.
AU - Greiner, R.
AU - Mora, M. L.
PY - 2011
Y1 - 2011
N2 - The abilities to produce indole acetic acid (IAA) and mineralize organic phosphorus by phytase are desirable traits in plant-growth promotion rhizobacteria (PGPR) particularly in Chilean Andisols which are characterized by low pH and high total P. However, little is known about the influence of soil properties that are specific to Andisol (low pH and metal toxicity) on the effectiveness of PGPR. Here, we assessed the effect of pH and metal cations on IAA and phytase activity of cell-associated proteins produced by two bacilli strains isolated from the rhizosphere of pasture plants. The production in vivo of IAA by Paenibacillus sp. SPT-03 was significantly increased (7-fold) when incubated in tenfold diluted culture medium, compared to the full-strength medium. At low pH (pH
AB - The abilities to produce indole acetic acid (IAA) and mineralize organic phosphorus by phytase are desirable traits in plant-growth promotion rhizobacteria (PGPR) particularly in Chilean Andisols which are characterized by low pH and high total P. However, little is known about the influence of soil properties that are specific to Andisol (low pH and metal toxicity) on the effectiveness of PGPR. Here, we assessed the effect of pH and metal cations on IAA and phytase activity of cell-associated proteins produced by two bacilli strains isolated from the rhizosphere of pasture plants. The production in vivo of IAA by Paenibacillus sp. SPT-03 was significantly increased (7-fold) when incubated in tenfold diluted culture medium, compared to the full-strength medium. At low pH (pH
KW - Andisol
KW - Bacillus
KW - indole acetic acid
KW - phytase
KW - rhizobacteria
KW - rhizosphere
KW - PLANT-GROWTH PROMOTION
KW - PAENIBACILLUS-POLYMYXA
KW - PANTOEA-AGGLOMERANS
KW - PHOSPHATE
KW - AUXIN
KW - IDENTIFICATION
KW - BIOSYNTHESIS
KW - SIDEROPHORES
KW - INVOLVEMENT
KW - EXUDATION
U2 - 10.4067/S0718-95162011000300001
DO - 10.4067/S0718-95162011000300001
M3 - Journal article
VL - 11
SP - 1
EP - 12
JO - Journal of Soil Science and Plant Nutrition
JF - Journal of Soil Science and Plant Nutrition
SN - 0718-9516
IS - 3
ER -