Positive allelopathic stimulation and under continuous monoculture

• Autorzy: Li Z.-F. , Zhang Z.-G. , Xie D.-F. , Dai L.-Q. , Zhu L.-F. , Li J. , Liu Z.-Q. , Yang Y.-Q. , Wu L.-K. , Huang M.-J. , Zhang Z.-Y. , Lin W.-X.
• Języki publikacji: EN

Abstrakty

EN

Three experiments were conducted to study the allelopathic stimulation and its underlying molecular mechanism of achyranthes medicinal plants in continuously monoculture system. The stimulators in the rhizospheric soil of continuously monocultured achyranthes plants were extracted by water and organic solvents. Results of the bioassay showed that the rhizospheric soil extracts had a significant promotive effect on the growth of achyranthes in continuous monoculture system, implying that the extracts, especially the water extracts might contain plant activators to stimulate the growth of the medicinal plants. Subtractive hybridization suppression (SSH) was used to investigate gene expression profiles of achyranthes in response to the extract treatments. Ten up-regulated genes from SSH-cDNA library were sequenced and assigned. Results indicated that flavonoids and phytosterol might play an important role in the positively allelopathic stimulation on achyranthes plants in continuous monoculture system. Comparative proteomics were employed to further unveil the molecular mechanism of allelopathic stimulation induced by the extracts. Compared with protein expression profile in control, 25 differentially expressed proteins and their functions were detected and identified in the treated plants. The results suggested that the extracts from continuously monocultured rhizospheric soils under Chinese medicinal achyranthes activated the genes encoding the key enzymes involved in terpenes and flavonoids synthesis, which in turn led to increased de novo synthesis of the stimulators, and hence promoted growth of achyranthes in consecutively monoculture system.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2011
• Tom: 33
• Numer: 6
• Opis fizyczny: p.2339-2347,fig.,ref.

Twórcy

autor

Li Z.-F.

• Key Laboratory of Biopesticide and Chemical Biology, Fujian Agriculture and ForestryUniversity, C/O Ministry of Education, Fuzhou, People's Republic of China
• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Zhang Z.-G.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Xie D.-F.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Dai L.-Q.

• Key Laboratory of Biopesticide and Chemical Biology, Fujian Agriculture and ForestryUniversity, C/O Ministry of Education, Fuzhou, People's Republic of China

autor

Zhu L.-F.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Li J.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Liu Z.-Q.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Yang Y.-Q.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Wu L.-K.

• Key Laboratory of Biopesticide and Chemical Biology, Fujian Agriculture and ForestryUniversity, C/O Ministry of Education, Fuzhou, People's Republic of China

autor

Huang M.-J.

• School of Life Sciences, C/O Fujian Agriculture and Forestry University, Fuzhou 350002, People's Republic of China

autor

Zhang Z.-Y.

• Institute of Chinese Medicinal Materials, Henan Agricultural University, Zhengzhou 450002, People's Republic of China

autor

Lin W.-X.

• Key Laboratory of Biopesticide and Chemical Biology, Fujian Agriculture and ForestryUniversity, C/O Ministry of Education, Fuzhou, People's Republic of China

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