Cambial Age Influences PCD Gene Expression during Xylem Development and Heartwood Formation.

ABSTRACT: Heartwood formation is an important ontogenetic stage in Scots pine (Pinus sylvestris L.). The amount of heartwood determines the proportion of functionally active sapwood in the total trunk biomass as well as the quality of wood. The key criterion for heartwood formation is the death of xylem ray parenchyma cells. Previously, models that described the patterns of heartwood formation, depending on the cambial age, were derived from Scots pine trees of different ages. The cambial age is the number of annual xylem layers at the core sampling site at a certain trunk height. We studied the features of the occurrence of programmed cell death (PCD) processes during the xylem differentiation and heartwood formation of 80-year-old Scots pine trees, depending on the cambial age, under the li

SUBMITTER: Moshchenskaya YL 

PROVIDER: S-EPMC10707818 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature