Résultat de la recherche
8 recherche sur le mot-clé
'DIMBOA' 
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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)[...]
thèse/mémoire
article/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
A. Mayoral ; W. Tjallingii ; P. Castanera | 1996The feeding behaviour of Diuraphis noxia (Kurdjumov) (Homoptera: Aphididae) was electronically monitored on five cereal species (Triticum aestivum L., T. turgidum L., Secale cereale L. and x Triticosecale Wittmack) containing different hydroxami[...]
article/chapitre/communication
D. Nicol ; S. Wratten | 1997From a previous worldwide screen of wheat cultivars as seedlings, five were selected to encompass a wide concentration range of the hydroxamic acid DIMBOA (0.99-8.07 mmol kg(-1) fr. wt). Compared with those in seedlings, the concentrations of DI[...]
article/chapitre/communication
A. Givovich ; H. Niemeyer | 1995Feeding behaviour of five species of cereal aphids in wheat seedlings differing in hydroxamic acid (Hx) levels, was monitored via electrical penetration graphs (EPG). Aphid species could be grouped as sensitive to the feeding deterrent effect of[...]
article/chapitre/communication
R. Loayzamuro ; C. Figueroa ; H. Niemeyer | 2000Hydroxamic acids (Hx) are wheat secondary metabolites conferring resistance for cereals against aphids. The activity of five enzymatic systems were evaluated in the aphid Sitobion avenae reared on the high-Hx wheat cultivar Chagual and the low-H[...]
