Data di Pubblicazione:
2019
Abstract:
Plant parasitic nematodes are among the most destructive plant pathogens worldwide and
their control is very challenging. Plant essential oils (EOs) have showed a great potential in
nematode control. In this work, EOs from 10 aromatic plants acclimatized in Togo were
assessed in vitro for their nematicidal activity on the root-knot nematode Meloidogyne incognita.
EOs were subsequently analyzed by GC-MS and compounds were tested individually on
nematodes. The most potent EOs were: Ocimum sanctum L., Cymbopogon schoenanthus (L.)
Spreng and Cinnamomum zeylanicum Blume with EC50/72h values of 282 ± 53, 288 ± 30 and
355 ± 126mg/L, respectively. The EC50/48h values of tested compounds were 81 ± 14,
117 ± 33, 128 ± 42, 141 ± 47, 168 ± 40, 216 ± 86 and 235 ± 43mg/L for cinnamyl acetate,
methyl eugenol, cinnamyl alcohol, acetyl eugenol, isoeugenol, eugenol and benzyl benzoate,
respectively. Furthermore, we found a synergistic nematicidal activity when we combined
phenylpropanoids compounds with carvone. EOs and their constituents described herein
merit further studies, especially in pot experiments before serving as nematicides.
their control is very challenging. Plant essential oils (EOs) have showed a great potential in
nematode control. In this work, EOs from 10 aromatic plants acclimatized in Togo were
assessed in vitro for their nematicidal activity on the root-knot nematode Meloidogyne incognita.
EOs were subsequently analyzed by GC-MS and compounds were tested individually on
nematodes. The most potent EOs were: Ocimum sanctum L., Cymbopogon schoenanthus (L.)
Spreng and Cinnamomum zeylanicum Blume with EC50/72h values of 282 ± 53, 288 ± 30 and
355 ± 126mg/L, respectively. The EC50/48h values of tested compounds were 81 ± 14,
117 ± 33, 128 ± 42, 141 ± 47, 168 ± 40, 216 ± 86 and 235 ± 43mg/L for cinnamyl acetate,
methyl eugenol, cinnamyl alcohol, acetyl eugenol, isoeugenol, eugenol and benzyl benzoate,
respectively. Furthermore, we found a synergistic nematicidal activity when we combined
phenylpropanoids compounds with carvone. EOs and their constituents described herein
merit further studies, especially in pot experiments before serving as nematicides.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
essential oils; nematicidal compounds; cinnamon; ginger; holy basil
Elenco autori:
Sasanelli, Nicola
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