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披针叶黄华中抑制植物病原真菌物质的分离鉴定(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2001年05期
Page:
85-88
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Isolation and Identification of a Compound from Therm opsis lanceolata to Inhibit Plant Pathogenic Fungi
Article ID:
1000-2006(2001)05-0085-04
Author(s):
WEI Qi-huaZHAO Bo-guangGUO Dao-sen
College of Forest Resources and Environment Nanjing Forestry U niversity,Nanjing 210037,China
Keywords:
Thermopsis lanceolataAlkaloidConidiumPathogenic fungus
Classification number :
S763
DOI:
10.3969/j.jssn.1000-2006.2001.05.022
Document Code:
A
Abstract:
A quinolizidine alkaloid (sparteine) was isolated from t he ethanol extracts of the seed of Thermopsis lanceolata.The structure of sp arteine was elucidated on the basis of physical constants and spectroscopic evid ences.Bioassay showed that the conidia germination of the four plant pathogenic fungi tested were inhibited by the alkaloid.The antifungal activity of the alkal oid against the conidia of two fungi was strong,their EC_50 were 22 μ g/mL of Sphaeropsis sapinea and 26 μg/mL of Botryis cinerea respective ly.The antifungal activities of 75% Daconial’s EC_50 were 58 μg/mL o f F.oxysporum, 19 μg/mL of C. oxysporum,0.8 μg/mL of S.sapinea and 4 μg/mL of B. cinerea respectively under the same conditions of the bioassay.The mycelia growth of the seven plant pathogenic fungi test were also inhibited by the alkaloid,but its inhibitory activities on the seven mycilia was weaker than those on the conidia mentioned above.

References

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Last Update: 1900-01-01