Variable lignin structure revealed in Populus leaves.

ABSTRACT: Lignin has long been a trait of interest, especially in bioenergy feedstocks such as Populus. While the stem lignin of Populus is well studied, foliar lignin has received significantly less consideration. To this end, leaves from 11 field grown, natural variant Populus trichocarpa genotypes were investigated by NMR, FTIR, and GC-MS. Five of these genotypes were sufficiently irrigated, and the other six genotypes were irrigated at a reduced rate (59% of the potential evapotranspiration for the site) to induce drought treatment. Analysis by HSQC NMR revealed highly variable lignin structure among the samples, especially for the syringyl/guaiacyl (S/G) ratio, which ranged from 0.52-11.9. Appreciable levels of a condensed syringyl lignin structure were observed in most sam

SUBMITTER: Bryant N 

PROVIDER: S-EPMC10320358 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature