Abstract
Serious problems have occurred on Falcataria moluccana plantations because of gall rust disease caused byUromycladium tepperianum. The disease inhibits tree growth, reduces wood quality, and can cause tree mortality. Thepresence of galls is a notable symptom of this disease. The study aimed to investigate the anatomy of the galls andthe changes in wood anatomical characteristics of F. moluccana due to the infection of U. tepperianum. Wood blockscontaining outer bark, cambium and xylem with different levels of severity of gall rust attack were removed from themain stem of F. moluccana trees. Microscopic observations were conducted to observe the anatomical characteristicsof the galls, affected wood and healthy wood. The results showed that the anatomy of galls was different from that ofaffected wood or healthy wood. The percentage of vessel area, diameter of vessel, percentage of ray parenchyma andthe length of wood fibres were significantly different between normal wood and affected wood. The results could beuseful in understanding gall formation and assessing its impact on wood quality.
SDGs:
SDG 12: Responsible Consumption and Production
SDG 13: Climate Action
SDG 15: Life on Land
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