Record ID No. |
5426 |
Author(s) |
Zimmermann J., Musyoki M. K., Cadisch G., Rasche F. , 2016 |
Affiliation |
Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Stuttgart, Germany. |
Title |
Biocontrol agent Fusarium oxysporum f.sp. strigae has no adverse effect on indigenous total fungal communities and specific AMF taxa in contrasting maize rhizospheres |
Source. Vol.(no):Page |
Fungal Ecology. 23: 1-10p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biocides |
Host |
Maize |
Organism |
Gigaspora margarita |
Country |
Germany |
Abstracts |
We studied the effects of Fusarium oxysporum f.sp. strigae (Fos), a soil-borne biocontrol agent (BCA) against Striga hermonthica, on total fungal and arbuscular mycorrhizal fungal (AMF) taxa in rhizospheres of maize in both clayey and sandy soil. Effects of Fos-BCA ‘Foxy-2’ were evaluated against (1) S. hermonthica presence, and (2) organic fertilization with Tithonia diversifolia residues at 14, 28 and 42 d after ‘Foxy-2’ inoculation, via DNA-based quantitative PCR and TRFLP fingerprinting. In both soils, ‘Foxy-2’ occasionally promoted total fungal abundance, while the community composition was mainly altered by T. diversifolia and S. hermonthica. Notably, ‘Foxy-2’ stimulated AMF Gigaspora margarita abundance, while G. margarita was suppressed by S. hermonthica. Total fungal and AMF abundance were promoted by T. diversifolia residues. In conclusion, ‘Foxy-2’ resulted in no adverse effects on indigenous rhizosphere fungal communities substantiating its environmental safety as BCA against S. hermonthica. |