The impact of 40 years of sulfur (S) emissions from a sour gas processing plant in Alberta (Canada) on soil development, soil S pools, soil acidification, and stand nutrition at a pine (Pinus contorta x Pinus banksiana) ecosystem was assessed by comparing ecologically analogous areas subjected to
Using degenerate PCR primers that target evolutionarily conserved sequences in pal genes, we show that in the gymnosperm, Pinus banksiana, phenylalanine ammonia-lyase (PAL) is encoded by a multigene family of at least eight to ten loci. Five classes of pal sequence were easily distinguished among 28