Growth responses of sunflower hypocotyl disks inoculated with Escherichia coli and Agrobacterium tumefaciens I. Morphological observations

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概要

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• Disks of sunflower hypocotyls 1mm thick grown in light and darkness on agar containing mineral salts and sucrose to which IAA was added in varying concentrations, were inoculated with E. coli, A. tumefaciens or sterile synthetic medium. Light-grown disks inoculated with E. coli proliferated from the lower surface and formed numerous long roots but dark-grown disks were usually inhibited in comparison with uninfected disks. Inoculation with A. tumefaciens induced proliferation mainly from the upper surface and a few short roots were formed. Uninfected disks grown with 0.01 ppm IAA proliferated in a manner similar to that of E. coli-infected light-grown disks on simple medium but in the dark similar treatments produced quite different morphological effects. The form of proliferation induced by E. coli under all conditions of growth could not be equated with that induced by A. tumefaciens or by different concentrations of IAA.

• 日本植物生理学会の論文

著者

• Fenwick E.l.

  Botany Department University Of Canterbury

• SHEAT D.E.G.

  Botany Department, University of Canterbury

• Sheat D.e.g.

  Botany Department University Of Canterbury

関連論文

• Growth responses of sunflower hypocotyl disks inoculated with Escherichia coli and Agrobacterium tumefaciens I. Morphological observations
• Growth responses of sunflower hypocotyl disks inoculated with Escherichia coli and Agrobacterium tumefaciens II. Analyses of increases in weight

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