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A Plant Hormone Bearing the Name "Trauma"
Traumatic acid (1) was isolated from green string-beans as a substance eliciting renewed growth activity in the parenchyma cells of the wounded bean mesocarp. It has been also reported that 1 in washed discs of a potato tuber provokes wound periderm formation consisting of protective tissues beneath injured surfaces. 1, a wound hormone in plant, has been named after Greek "τραύμα" (trauma) by A. J. Haagen-Smit et. al.1) 1 is biosynthesized from linolenic acid through multiple oxidations by enzymes etc.2,3)
References
- 1)Structure and synthesis of a plant wound hormone
- 2)Identification of traumatin, a wound hormone, as 12-oxo-trans-10-dodecenoic acid
- 3)Necessity of a functional octadecanoic pathway for indole alkaloid synthesis by Catharanthus roseus cell suspensions cultured in an auxin-starved medium
