1. Responses of cucumber rhizosphere communities of Fusarium and Bacillus spp. to exogenously applied p-Coumaric acid.
- Author
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Jian Wang, Hui Liu, Dinghong Zhang, Junbo Wang, and Xingang Zhou
- Subjects
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COMMUNITIES , *BACILLUS (Bacteria) , *DENATURING gradient gel electrophoresis , *RHIZOSPHERE , *FUSARIUM , *POLYMERASE chain reaction - Abstract
In monocropping systems autotoxins, such as phenolic compounds, could accumulate in soil and affects the soil microbial communities, however, the specific effects on microbial species are unknown. We determined the responses of cucumber rhizosphere Fusarium and Bacillus spp. communities to exogenously applied p-coumaric acid (0.02, 0.05, 0.1, 0.2 μmol/g soil) by polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) technique. Results showed that all concentrations of p-coumaric acid changed the community structure of Fusarium spp. and p-coumaric acid at 0.2 μmol/g soil decreased the number of bands as indicated by Shannon-Wiener and evenness index of Fusarium spp. community. However, p-coumaric acid did not affect the structure of Bacillus spp. community. These results indicated that the p-coumaric acid showed different effects on Fusarium and Bacillus spp. communities. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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