Inhibition ofPinus radiataPrimary Needle Epicuticular Wax Biosynthesis by Trichloroacetate
- 1 June 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 31 (3) , 829-838
- https://doi.org/10.1093/jxb/31.3.829
Abstract
High concentrations (1000 parts 10−6) of trichloroacetate (TCA) inhibit germination of Pinus radiata seed. Seedlings growing in the presence of lower concentrations (100 parts 10−6) take up TCA where it becomes concentrated in cotyledons and developing primary needles. TCA inhibits biosynthesis of nonacosan-10-ol and long chain diol constituents of the primary needle epicuticular wax concomitant with a reduction in appearance of tubular wax except around stomatal pores. Epicuticular wax from TCA-treated plants consists mainly of alkyl esters, and is amorphous. It is suggested that P. radiata stomatal subsidiary cells possess tubular epicuticular wax chemically distinct from that of epidermal cells.This publication has 5 references indexed in Scilit:
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