Record ID No. |
637 |
Author(s) |
Souchie, E.L., Azcon, R., Barea, J.M., Saggin-Junior, O.J., da Silva, E.M.R , 2006 |
Affiliation |
Center Fed Education Tecnology, Caixa Postal 66, BR-75901970 Rio Verde, Go, Brazil |
Title |
Phosphate solubilization and synergism between P-solubilizing and arbuscular mycorrhizal fungi |
Source. Vol.(no):Page |
Pesquisa agropecuaria brasileira. 41(9):1405-1411p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Nutrition |
Host |
Clover |
Organism |
n.a. |
Country |
Brazil, S.America |
Abstracts |
The objective of this work was to evaluate the ability of several P-solubilizing fungi to solubilize aluminum phosphate and Araxa apatite as well as the synergism between the P-solubilizing fungus, PSF 7, and arbuscular mycorrhizal fungi to promote clover growth amended with aluminum phosphate. Two experiments were carried out, the first under laboratory conditions and the second in a controlled environmental chamber. In the first experiment, PSF 7, PSF 9, PSF 21 and PSF 22 isolates plus control were incubated in liquid medium at 28 degrees C for eight days. On the 2nd, 4th and 8th day of incubation, pH and soluble P were determined. In the second experiment, clover was sowed in plastic pots containing 300 g of sterilized substrate amended with aluminum phosphate, 3 g L-1, in presence and absence of PSF 7 isolate and arbuscular mycorrhizal fungi. A completely randomized design, in factorial outline 2x2 (presence and absence of PSF 7 and arbuscular mycorrhizal fungi) and five replicates were used. In the first experiment, higher P content was detected in the medium containing aluminum phosphate. PSF 7 is the best fungi isolate which increases aluminum solubilization with major tolerance to Al3+. Clover growth was stimulated by presence of PSF 7 and arbuscular mycorrhizal fungi. There is synergism between microorganisms utilized to improve plant nutrition. |