1 Division of Applied Bioscience and Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture & Life Science, Chonnam National University, Gwangju 500-757, South Korea
2 Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju 500-757, South Korea
The potential use of Cinnamomum aromaticum and its active compound to control Meloidogyne incognita was investigated in vitro and in pot experiments. One compound, cinnamyl acetate, was isolated by thin layer chromatography and silica gel column chromatography, and identified by 1H-NMR, 13C-NMR and mass spectrometry. Juvenile movement and hatch inhibition by cinnamyl acetate was dependent on both the concentration and incubation time of the cinnamyl acetate. Treatment with 25, 50, 75, 100 and 125 μg ml−1 of cinnamyl acetate resulted in 33.7, 65.1, 81.1, 100 and 100% inhibition of movement of second-stage juveniles, respectively, at 50 min after incubation. The juvenile movement inhibition was <20% at the tested concentrations at 10 min after incubation. Cinnamyl acetate treatment resulted in 20.8, 39.4, 81.3 and 90.7% hatch inhibition at 25, 50, 100 and 200 μg ml−1, respectively, at 3 days after incubation and 21.6, 39.3, 73.2 and 88.7% hatch inhibition at 25, 50, 100 and 200 μg ml−1, respectively at 6 days after incubation. In pot tests, C. aromaticum crude extracts effectively inhibited infection of M. incognita on cucumber plants. Cinnamomum aromaticum crude extracts applied at 0.5 and 1.0 mg (g soil)−1 significantly reduced the numbers of galls caused by M. incognita. The activities of pathogenesis-related proteins as β-1,3-glucanase and peroxidase on leaves of plants treated with C. aromaticum crude extracts were significantly higher than those on leaves of control plants.
Comparative bioactivity of selected extracts from Meliaceae and some commercial botanical insecticides against two noctuid caterpillars, Trichoplusiani and Pseudaletia unipuncta.
o-Benzenedesulfonimide as a soft, efficient, and recyclable catalyst for the acylation of alcohols, phenols, and thiols under solvent-free condition: advantages and limitations.
Nematode extraction and bioassays. In:
An advanced treatise on Meloidogyne, Volume II, Methodology.
Raleigh, NC, USA, Department of Plant Pathology, North Carolina State University Press, pp.
Evaluation of natural chemical compounds against root-lesion and root-knot nematodes and side-effects on the infectivity of arbuscular mycorrhizal fungi.
European Journal of Plant Pathology107,
Superoxide dismutase, catalase and peroxidase activities do not confer protection against oxidative damage in salt-stressed cowpea leaves.
Nematicidal activity of medicinal plant extracts and two cinnamates isolated from Kaempferia galanga L. (Proh Hom) against the pine wood nematode, Bursaphelenchus xylophilus.
Differential accumulation of β-1,3-Glucanase and chitinase isoforms in pepper stems infected by compatible and incompatible isolates of Phytophthora capsici.
Physiological and Molecular Plant Pathology45,
Nematicidal activity of compounds extracted from medicinal plants against the pine wood nematode Bursaphelenchus xylophilus.
Changes in antioxidative enzymes in cucumber plants with regard to biological control of root-knot nematode, Meloidogyne incognita with Cinnamomum cassia crude extracts.
Journal of Korean Society for Applied Biological Chemistry54,
Inhibition of fungal growth on bread by volatile components from spices and herbs, and the possible application in active packaging, with special emphasis on mustard essential oil.
International Journal of Food Microbiology60,
Nematicidal activity of plant essential oils and components from garlic (Allium sativum) and cinnamon (Cinnamomum verum) oils against the pine wood nematode, Bursaphelenchus xylophilus.
Rhizobacterial induction of systemic resistance in tomato plants: non-specific protection and increase in enzyme activities.
Production and application of phytochemicals from an agricultural perspective. In:
van BeekT.A.BretelerH. (Eds).
Phytochemistry and agriculture,
Oxford, UK, Clarendon Press, pp.
Agricultural soil fumigation as a source of atmospheric methyl bromide.
Proceedings of the National Academy of Sciences of the United States of America90,
Induction and accumulation of PR proteins activity during early stages of root colonization by the mycoparasite Trichoderma harzianum strain T-203.
Plant Physiology and Biochemistry38,
Velvetbean (Mucuna pruriens) extracts: impact on Meloidogyne incognita survival and on Lycopersicon esculentum and Lactuca sativa germination and growth.
Pest Management Science62,