Open AccessThe Triticeae as sources of hydroxamic acids, secondary metabolites in wheat conferring resistance against aphids
Author(s) -
NIEMEYER HERMANN M.,
COPAJA SYLVIA V.,
BARRIA BERNARDITA N.
Publication year - 1992
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1992.tb00840.x
Subject(s) - triticeae , biology , antibiosis , aphid , amino acid , botany , resistance (ecology) , aphididae , genome , homoptera , genetics , pest analysis , gene , agronomy , bacteria
Hydroxamic. acids of the 2,4‐dihydroxy‐l,4‐benzoxazin‐3‐one type (DIBOA; DIMBOA = 7‐methoxy derivative) play an important role in the resistance of wheat to aphids, through antibiosis and feeding deterrency. Screening of species of the tribe Triticeae has identified useful sources of hydroxamic acids for breeding programs to increase aphid resistance in wheat. It is shown that hydroxamic acids may be used as taxonomic markers. On this basis, it is suggested that Trilkum speltoides is a likely donor of the B genome to hexaploid wheat.