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Nematicidal activity of powder and extracts of Inula viscosa
Year:
2001
Source of publication :
Nematology
Authors :
Oka, Yuji
;
.
Volume :
3
Co-Authors:

Yuji OKA
Bat-Hen BEN-DANIEL
Yigal COHEN

Facilitators :
From page:
735
To page:
742
(
Total pages:
8
)
Abstract:

The number of second-stage juveniles of Meloidogyne javanica in sand was greatly reduced by mixing in leaf powder of Inula viscosa at a concentrationof 0.1% (w/w). Powder from other plant parts, except the root, also showed nematicidal activity. Fresh shootsincorporatedinto the sand showed less of a nematicidal effect. An aqueous extract of the leaf powder exhibited slight nematicidal activity against the nematode, whereas its extracts with organic solventsshowed stronger activity. M. javanica was most sensitive to the leaf powder, followed by Tylenchulussemipenetrans, while Aphelenchus avenae, Ditylenchus dipsaci and Pratylenchus mediterraneus were much less, or not at all affected. Acetone extracts of the fresh and dry leaves yielded two fractions with nematicidal activity by column chromatography. One nematicidal fraction contained a mixture of costic and isocostic acid. This mixture, presumably located in the outside of the shoots,showed nematicidal activity toward M. javanica at a concentration of 50 mg/kg sand.

Note:
Related Files :
Aphelenchus avenae
costic acid
Ditylenchus dipsaci
isocostic acid
Meloidogyne javanica
Pratylenchus mediterraneus
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More details
DOI :
Article number:
0
Affiliations:
Database:
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
60281
Last updated date:
13/07/2022 15:04
Creation date:
13/07/2022 15:04
Scientific Publication
Nematicidal activity of powder and extracts of Inula viscosa
3

Yuji OKA
Bat-Hen BEN-DANIEL
Yigal COHEN

The number of second-stage juveniles of Meloidogyne javanica in sand was greatly reduced by mixing in leaf powder of Inula viscosa at a concentrationof 0.1% (w/w). Powder from other plant parts, except the root, also showed nematicidal activity. Fresh shootsincorporatedinto the sand showed less of a nematicidal effect. An aqueous extract of the leaf powder exhibited slight nematicidal activity against the nematode, whereas its extracts with organic solventsshowed stronger activity. M. javanica was most sensitive to the leaf powder, followed by Tylenchulussemipenetrans, while Aphelenchus avenae, Ditylenchus dipsaci and Pratylenchus mediterraneus were much less, or not at all affected. Acetone extracts of the fresh and dry leaves yielded two fractions with nematicidal activity by column chromatography. One nematicidal fraction contained a mixture of costic and isocostic acid. This mixture, presumably located in the outside of the shoots,showed nematicidal activity toward M. javanica at a concentration of 50 mg/kg sand.

Scientific Publication
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