Allelopathy and self-defense in barley
Lovett, J.V.
Allelopathy and self-defense in barley - 1995 - Printed
references. Developed from a meeting sponsored by the Botanical Society of America Section of the American Institute of Biological Sciences, August 1-5, 1993, Ames, Iowa US (DNAL QD1.A45 no.582)
Evidence for allelopathic activity in barley and the major temperate cereal crops is reviewed. We believe that the secondary metabolites, gramine and hordenine, produced by barley (Hordeum spp.) play a role in defending the producing plant against interference from other organisms. Our recent work has shown inhibitory effects on a fungus (Drechslera teres) and on armyworm (Mythimna convecta) larvae as well as on a number of plant species. This work and that of others showing activity against bacteria, aphids and mammals suggests a possible physiological resistance to these organisms which may be exploitable through plant breeding. A survey of 43 lines of barley including ancestral and modern types indicates that hordenine production by modern cultivars may already have been inadvertently favored by selection for agronomic traits while the ability to produce gramine may have been reduced or lost during this process
English
08-412-30617
Amines
Amino compounds
Gramineae
Hordeum
Infectious diseases
Noxious animals
Noxious plants
Pests
Pests of plants
Plant anatomy
Plant diseases
Plant physiology
Plant vegetative organs
Semiochemicals
Weeds and weed control
97-048632
Allelopathy and self-defense in barley - 1995 - Printed
references. Developed from a meeting sponsored by the Botanical Society of America Section of the American Institute of Biological Sciences, August 1-5, 1993, Ames, Iowa US (DNAL QD1.A45 no.582)
Evidence for allelopathic activity in barley and the major temperate cereal crops is reviewed. We believe that the secondary metabolites, gramine and hordenine, produced by barley (Hordeum spp.) play a role in defending the producing plant against interference from other organisms. Our recent work has shown inhibitory effects on a fungus (Drechslera teres) and on armyworm (Mythimna convecta) larvae as well as on a number of plant species. This work and that of others showing activity against bacteria, aphids and mammals suggests a possible physiological resistance to these organisms which may be exploitable through plant breeding. A survey of 43 lines of barley including ancestral and modern types indicates that hordenine production by modern cultivars may already have been inadvertently favored by selection for agronomic traits while the ability to produce gramine may have been reduced or lost during this process
English
08-412-30617
Amines
Amino compounds
Gramineae
Hordeum
Infectious diseases
Noxious animals
Noxious plants
Pests
Pests of plants
Plant anatomy
Plant diseases
Plant physiology
Plant vegetative organs
Semiochemicals
Weeds and weed control
97-048632