Abstract
Replanting obstacles of Panax notoginseng caused by complex factors, including pathogens, have received great attention. In this study, essential oils (EOs) from either Alpinia officinarum Hance or Amomum tsao-ko (Zingiberaceae) were found to inhibit the growth of P. notoginseng-associated pathogenic fungi in vitro. Subsequent GC-MS analysis revealed the chemical profiles of two plant derived EOs. Linalool and eucalyptol were found to be abundant in the EOs and tested for their antifungal activities. In addition, the synergistic effects of A. tsao-ko EOs and hymexazol were also examined. These findings suggested that Zingiberaceae EOs might be a good source for developing new green natural pesticides fighting against root-rot of P. notoginseng.
Keywords:
Panax notoginseng; Zingiberaceae; essential oils; fungi; root-rot disease.
MeSH terms
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Acyclic Monoterpenes
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Antifungal Agents / chemistry
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Antifungal Agents / pharmacology*
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Cyclohexanols / isolation & purification
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Cyclohexanols / pharmacology
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Drug Synergism
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Eucalyptol
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Fungi / drug effects
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Gas Chromatography-Mass Spectrometry
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Monoterpenes / isolation & purification
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Monoterpenes / pharmacology
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Oils, Volatile / chemistry
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Oils, Volatile / pharmacology*
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Oxazoles / pharmacology
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Panax notoginseng / drug effects
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Panax notoginseng / growth & development
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Panax notoginseng / microbiology*
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Plant Diseases / microbiology
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Plant Diseases / prevention & control*
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Plant Oils / chemistry
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Plant Oils / pharmacology
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Plant Roots / drug effects
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Plant Roots / growth & development
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Plant Roots / microbiology
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Zingiberaceae / chemistry*
Substances
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Acyclic Monoterpenes
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Antifungal Agents
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Cyclohexanols
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Monoterpenes
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Oils, Volatile
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Oxazoles
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Plant Oils
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hymexazol
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linalool
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Eucalyptol