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Impact of Bacillus subtilis JA, a biocontrol strain of fungal plant pathogens, on arbuscular mycorrhiza formation in Zea mays

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Summary

In the present study, the influence of Bacillus subtilis JA on arbuscular mycorrhizal fungi (AMF) was evaluated by either pot culture or in vitro conditions, respectively. Under the pot culture conditions, the inoculation of B. subtilis JA decreased the frequency (% F) of the root colonization by indigenous arbuscular mycorrhizal fungi and the shoot dry weight of maize (Zea mays L.), but had no apparent effect on the intensity (% I) of AM fungal root colonization. The unknown volatile emitted from the B. subtilis JA in vitro significantly inhibited spore germination and the hyphal growth in the dual-compartment experiments. Moreover, the data from the direct interaction between B. subtilis JA and Glomus etunicatum showed that soluble antifungal lipopeptides influenced the development of AMF. Therefore, the application of antifungal Bacillus strains should take the compatibility with the indigenous beneficial fungi into consideration.

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Acknowledgements

This study was supported by the grant under Hefei Institutes of Physical Science. We would like to thank Dr. Ann Xu for her efforts to make the manuscript fluent.

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Correspondence to Lijun Wu.

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Xiao, X., Chen, H., Chen, H. et al. Impact of Bacillus subtilis JA, a biocontrol strain of fungal plant pathogens, on arbuscular mycorrhiza formation in Zea mays . World J Microbiol Biotechnol 24, 1133–1137 (2008). https://doi.org/10.1007/s11274-007-9584-3

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  • DOI: https://doi.org/10.1007/s11274-007-9584-3

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