Record ID No. |
1865 |
Author(s) |
Sampedro I., Aranda E., Diaz R., GarciaSanchez M., Ocampo J.A., GarciaRomera I , 2008 |
Affiliation |
CSIC, Dept Microbiol Suelo & Sistemas Simbiot, Estac Expt Zaidin, Prof Albareda 1, Apdo 419, E-18008 Granada, SPAIN |
Title |
Saprobe fungi decreased the sensitivity to the toxic effect of dry olive mill residue on arbuscular mycorrhizal plants |
Source. Vol.(no):Page |
Chemosphere.70(8):1383-1389p. |
Categories |
Mycorrhiza General |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
Spain, Europe |
Abstracts |
We studied the influence of olive mill dry residue (DOR) treated with saprobe
fungi on growth of tomato and alfalfa colonized by Glomus deserticola. The application of 25 g
kg(-1) of dry DOR to soil decreased the shoot and root dry weight of tomato and alfalfa. Plants
were more sensitive to the toxicity of DOR when colonized with the arbuscular mycorrhizal (AM)
fungi. The sensitivity of both plants to the toxicity of DOR differed according to whether they
were colonized by G. Deserticola or by indigenous AM fungi. The phytotoxicity of DOR towards
tomato and alfalfa was decreased by incubation the residue before planting with saprobe fungi for
20 wk. The beneficial effects of AM fungi on plant growth added with DOR incubated with saprobe
fungi depend of the type of the plant and AM fungi. The contribution of AM fungi to the
beneficial effect of DOR incubated with saprobe fungi varied according to the type of the plant
and AM fungi. G. Deserticola increased the shoot and root dry weight of plants when they were
grown in the presence of DOR incubated with saprobe fungi for 20 wk. The beneficial effect of
saprobe fungi on the dry weight and the level of AM mycorrhization of plants seem to be related
to the decrease caused by these fungi in the phenol concentration in DOR. However, the toxicity
of DOR due to substances other than phenols can not be ignored. The use of certain saprobe and AM
fungi allows the possibility of using DOR as an organic fertilizer. (c) 2007 Elsevier Ltd. All
rights reserved. |