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090			_aB-19178
245	1	0	_aActivities of essential oils from three Brazilian plants and benzaldehyde analogues against Meloidogyne incognita
490	0		_vNematology, 21(10), p.1081-1089, 2019
520	3		_aThere is a demand for novel products for the control of plant-parasitic nematodes, so we characterised the effectiveness of some plant essential oils against Meloidogyne incognita and verified the efficiency of the major component from the most toxic oils and their analogues using in vitro and in vivo assays. In this study, the essential oils from Piptadenia viridiflora, Hyptis suaveolens and Astronium graveolens against M. incognita were evaluated, but only P. viridiflora oil showed toxicity toward M. incognita. Benzaldehyde was its main component according to GC-MS analysis. In in vitro assays, benzaldehyde (100 and 200 ?g ml?1)and its oxime (400 ?g ml?1)caused a higher rate of M. incognita second-stage juvenile (J2)mortality than the nematicide carbofuran (170 ?g ml?1). Reductions of more than 90 percent in the number of galls and eggs, even greater than that observed with carbofuran, were observed in the assay where the J2 were placed in solutions of benzaldehyde and its oxime 48 h prior to tomato plant inoculation. Application of benzaldehyde together with M. incognita J2 to the substrate resulted only in a reduction in the number of eggs (42-65 percent ); however, its oxime reduced both the number of galls (43-84 percent ) and eggs (23-89 percent ). Therefore, the P. viridiflora oil, its major component benzaldehyde, and the analogue benzaldehyde oxime are toxic to M. incognita. In two different in vivo assays, benzaldehyde oxime was confirmed as toxic to M. incognita with a greater efficacy than benzaldehyde.
650	1	4	_aASTRONIUM GRAVEOLENS
650	1	4	_aBENZALDEHYDE OXIME
650	1	4	_aHYPTIS SUAVEOLENS
650	1	4	_aNEMATICIDE
650	1	4	_aNEMATODE CONTROL
650	1	4	_aPESTICIDE
650	1	4	_aPIPTADENIA VIRIDIFLORA
650	1	4	_aROOT-KNOT NEMATODES
700	1	2	_aBarros, A. F.
700	1	2	_aCampos, V. P.
700	1	2	_aDe Oliveira, D. F.
700	1	2	_aDe Jesus Silva, F.
700	1	2	_aJardim, I. N.
700	1	2	_aCosta, V. A.
700	1	2	_aSilva, G. H.
856	4	0	_uhttps://drive.google.com/file/d/1ZUiSBZ7zHv6oNZ8XPRgU9Wpbj6whhMpc/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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