Accession Number:

ADA622154

Title:

Molecular and Phytochemical Investigation of Angelica dahurica and Angelica pubescentis Essential Oils and Their Biological Activity against Aedes aegypti, Stephanitis pyrioides, and Colletotrichum Species

Descriptive Note:

Journal article

Corporate Author:

AGRICULTURAL RESEARCH SERVICE UNIVERSITY MS NATURAL PRODUCTS UTILIZATION RESEARCH UNIT

Report Date:

2014-08-18

Pagination or Media Count:

12.0

Abstract:

In this study, Angelica dahurica and Angelica pubescentis root essential oils were investigated as pest management perspectives, and root samples were also analyzed genetically using the nuclear ribosomal internal transcribed spacer ITS region as a DNA barcode marker. A. pubescentis root essential oil demonstrated weak antifungal activity against Colletotrichum acutatum, Colletotrichum fragariae, and Colletotrichum gloeosporioides, whereas A. dahurica root essential oil did not show antifungal activity. Conversely, A. dahurica root essential oil demonstrated better biting deterrent and insecticidal activity against yellow fever mosquito, Aedes aegypti, and azalea lace bugs, Stephanitis pyrioides, than A. pubescentis root oil. The major compounds in the A. dahurica oil were found as -pinene 46.3, sabinene 9.3, myrcene 5.5, 1-dodecanol 5.2, and terpinen-4-ol 4.9. -Pinene 37.6, p-cymene 11.6, limonene 8.7, and cryptone 6.7 were the major compounds found in the A. pubescentis oil. In mosquito bioassays, 1-dodecanol and 1-tridecanol showed antibiting deterrent activity similar to the positive control DEET N,N-diethyl-3-methylbenzamide at 25 nmolcm2 against Ae. aegypti, whereas only 1-tridecanol showed repellent activity in human-based cloth patch bioassay with minimum effective dosages MED of 0.086 0.089 mgcm2 DEET 0.007 0.003 mgcm2. In larval bioassays, 1-tridecanol was more toxic with an LC50 value of 2.1 ppm than 1-dodecanol having an LC50 value of 5.2 ppm against 1-day-old Ae. aegypti larvae. 1-Dodecanol and 1-tridecanol could be useful for the natural mosquito control agents.

Subject Categories:

  • Agricultural Chemistry
  • Biology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE