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Direct breeding was used to obtain mutant loblolly pine trees, deficient in enzyme cinnamyl alcohol dehydrogenase (CAD). High levels of pulping-resistant C-5 linkages resulted from the lignin in the wood of CAD deficient trees with different pool of precursors. Results showed that the CAD-deficient wood was easily delignifined as compared to a normal 12-year-old loblolly pine. It was easy to bleach the pulp, from CAD-deficient wood. Lignin size and phenolic content were found to be related to the high reactivity of CAD-deficient wood.

Original publication




Journal article


Journal of Wood Chemistry and Technology

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