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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

Journal Article

Antifungal Activity of the Essential Oil of Hyssop (Hyssopus officinalis)  [2001]

Letessier, M. P.; Svoboda, K. P.; Walters, D. R.;

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The antifungal and fungicidal effects of hyssop (Hyssopus officinalis) oil and its individual components were studied in a series of in vitro and in vivo experiments. Mycelial growth of the plant pathogenic fungi Pyrenophora avenae and Pyricularia oryzae was completely inhibited by 0.4% hyssop oil. Volatile components diffusing from agar medium containing 0.4% hyssop oil also completely inhibited the growth of these two fungi. Various components of hyssop oil (L‐bornyl acetate, isopinocampheol and pinocamphone), used individually, reduced growth of P. avenae and, where combinations of individual components were used, any mixture containing isopinocampheol completely inhibited fungal growth. Growth of P. oryzae was less affected by individual components of the oil. Hyssop oil reduced germination of Botrytis fabae conidia and uredospores of Uromyces viciae‐fabae, but in contrast to the data from in vitro experiments, its effects on pathogen infection were less clear cut. Thus, although 0.05% hyssop oil reduced rust infection of broad bean when applied 1, 2 or 3 days before, or 1 or 2 days after inoculation, its effects against barley powdery mildew and apple powdery mildew were variable. It is suggested that this variability might be the result of the volatile components of the oil diffusing away from leaf surfaces, thus reducing the concentration of active components on the leaf surface.

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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2014
Volume:
149
Issue:
11‐12
Start Page:
673
End Page:
678
Publisher:
Blackwell Science Ltd.
All titles:
" Antifungal Activity of the Essential Oil of Hyssop (Hyssopus officinalis) "

From the journal

Journal of phytopathology

ISSN : 0931-1785