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Allelopathic and Medicinal plant. 26. Millettia speciosa
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We grew cucumber in pots in greenhouse for 9-successive cropping cycles and analyzed the rhizosphere Pseudomonas spp. community structure and abundance by PCR-denaturing gradient gel electrophoresis and quantitative PCR. Results showed that continuous monocropping changed the cucumber rhizosphere Pseudomonas spp. community. The number of DGGE bands, Shannon-Wiener index and Evenness index decreased during the 3rd cropping and thereafter, increased up to the 7th cropping, however, however, afterwards they decreased again. The abundance of Pseudomonas spp. increased up to the 5th successive cropping and then decreased gradually. These findings indicated that the structure and abundance of Pseudomonas spp. community changed with long-term cucumber monocropping, which might be linked to soil sickness caused by its continuous monocropping.
International Allelopathy Foundation
Title: Allelopathic and Medicinal plant. 26. Millettia speciosa
Description:
We grew cucumber in pots in greenhouse for 9-successive cropping cycles and analyzed the rhizosphere Pseudomonas spp.
community structure and abundance by PCR-denaturing gradient gel electrophoresis and quantitative PCR.
Results showed that continuous monocropping changed the cucumber rhizosphere Pseudomonas spp.
community.
The number of DGGE bands, Shannon-Wiener index and Evenness index decreased during the 3rd cropping and thereafter, increased up to the 7th cropping, however, however, afterwards they decreased again.
The abundance of Pseudomonas spp.
increased up to the 5th successive cropping and then decreased gradually.
These findings indicated that the structure and abundance of Pseudomonas spp.
community changed with long-term cucumber monocropping, which might be linked to soil sickness caused by its continuous monocropping.
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