Résultat de la recherche
50 recherche sur le mot-clé
'SUBSTANCE ALLELOCHIMIQUE' 
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J. Arnason, - Editeur scientifique ; B. Philogène, - Editeur scientifique ; Symposium (1989/10; St-John's Newfoundland, CAN) | Ottawa [CAN] : Entomological Society of Canada | 1991article/chapitre/communication
D. Jackson ; A. Dixon | 19961. The green spruce aphid Elatobium abietinum, was less active and more likely to feed when on mature rather than young needles of Sitka spruce. 2. Compared with survival on mature needles, survival of aphids on young needles was significantly r[...]article/chapitre/communication
article/chapitre/communication
B. Gabrys ; W. Tjallingii ; T. Vanbeek | 1997Probing behavior of adult apterous Brevicoryne brassicae (L.) was monitored with the electical penetration graph (EPG) technique on Sinapis alba L. Old, young, and mature leaves, as well as the generally preferred stems were compared with respec[...]article/chapitre/communication
Experimental results indicate the existence of an inducible system that can temporarily help cereal plants to defend themselves against cereal aphids. The induction is released by volatiles emitted when aphids attack a neighbour plant individual[...]article/chapitre/communication
R. Isaacs ; J. Hardie ; A. Hick ; B. Pye ; L. Smart ; L. Wadhams ; C. Woodcock | 1993Isothiocyanates have been shown to stimulate olfactory receptors on the antennae of the black bean aphid, Aphis fabae Scop. Single-cell recording techniques show that this aphid has receptors at the proximal primary rhinarium which are sensitive[...]article/chapitre/communication
H. Havlickova ; M. Cvikrova ; J. Eder ; H. Havlickova, - Editeur scientifique ; M. Cvikrova, - Editeur scientifique ; J. Eder, - Editeur scientifique | 1996article/chapitre/communication
H. Niemeyer ; J. Jerez | 1997Hydroxamic acids are defensive secondary metabolites in wheat, the most abundant aglucones being DIMBOA and DIBOA, The location of genes coding for the accumulation of hydroxamic acids by wheat (Triticum aestivum L.) seedlings was explored compa[...]article/chapitre/communication
article/chapitre/communication
X. Ni ; S. Quisenberry | 2000The concentration of a hydroxamic acid, also known as DIMBOA (2,4-dihydroxy-7methoxy-1, 4-benzoxazin-3-one), in 6-d old wheat seedlings was examined using reverse-phase high performance liquid chromatography (HPLC). Wheat plant introduction (PI)[...]article/chapitre/communication
H. Wilkinson ; M. Siegel ; J. Blankenship ; A. Mallory ; L. Bush ; C. Schardl | 2000Fungal endophytes provide grasses with enhanced protection from herbivory, drought, and pathogens. The loline alkaloids (saturated 1-aminopyrrolizidines with an oxygen bridge) are fungal metabolites often present in grasses with fungal endophyte[...]article/chapitre/communication
D. Battaglia ; F. Pennacchio ; G. Marincola ; A. Tranfaglia | 1993Females of the endophagous parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae) respond positively to the cornicle secretion of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae). The parasitoid response has been assessed [...]article/chapitre/communication
P. Wohlers | 1980
