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Properties of reaction zones associated with decay from pruning wounds in plantation-grown Eucalyptus nitens
journal contribution
posted on 2023-05-16, 12:33 authored by Kara BarryKara Barry, Pearce, RB, Caroline MohammedCaroline MohammedDecay columns resulting from naturally infected pruning wounds in 5- to 8-year-old plantation-grown Eucalyptus nitens in Tasmania are interfaced by a reaction zone in the sapwood. The reaction zone is blue-purple in colour and occasionally associated with a white zone at the reaction zone/healthy sapwood interface. A log incubation experiment has shown that the reaction zone is particularly durable against decay. The reaction zone is significantly drier than healthy sapwood, with lower levels of potassium, and a lower pH than both sapwood and heartwood. The increased total phenols levels and abundant tyloses in the reaction zone may be particularly important in defence.
History
Publication title
Forest PathologyVolume
30Issue
5Pagination
233-245ISSN
1437-4781Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Blackwell Wissenschafts-Verlag, BerlinPlace of publication
Berlin, GermanyRepository Status
- Restricted