Northern Research Station

Title: Plant growth, biomass partitioning and soil carbon formation in response to altered lignin biosynthesis in Populus tremuloides

Author: Hancock, Jessica E.; Loya, Wendy M.; Giardina, Christian P.; Li, Laigeng; Chiang, Vincent L.; Pregitzer, Kurt S.

Date: 2007

Source: New Phytologist. 173: 732-742.

Description: We conducted a glasshouse mesocosm study that combined ¹³C isotope techniques with wild-type and transgenic aspen (Populus tremuloides) in order to examine how altered lignin biosynthesis affects plant production and soil carbon formation. Our transgenic aspen lines expressed low stem lignin concentration but normal cellulose concentration, low lignin stem concentration with high cellulose concentration or an increased stem syringyl to guaiacyl lignin ratio.

Keywords: carbon cycling, leaf area, lignin, photosynthesis, plant production, Populus, tissue quality, transgenic aspen

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Citation

Hancock, Jessica E.; Loya, Wendy M.; Giardina, Christian P.; Li, Laigeng; Chiang, Vincent L.; Pregitzer, Kurt S.  2007.  Plant growth, biomass partitioning and soil carbon formation in response to altered lignin biosynthesis in Populus tremuloides.   New Phytologist. 173: 732-742..