Interference of wood decay, growth, and infection ofGanoderma boninenseby ligninolytic fungi from herbaceous plants

Abstract

Basal stem rot (BSR) disease caused byGanoderma boninenseis the most destructive disease in oil palm plantations. Herbaceous plants such as arrowroot, cocoyam, and canna were reported to interfere with theGanodermadisease of oil palm under mixed planting on non-sterilized soil. This study aimed to determine the role of the ligninolytic fungi isolated from herbaceous plants on wood decay, mycelial growth, and infection ofGanoderma boninense. A total of 24 ligninolytic fungal isolates were isolated from arrowroot, cocoyam, and canna plant and grouped into 6 types of wood decay interaction, namely (1) neutral, (2) negative interference to the herbaceous isolates, (3) negative interference to both fungi, (4) negative interference toGanoderma, (5) negative interference to the herbaceous isolates and positive forGanoderma, and (6) positive interference in both fungi. Ligninolytic fungi from cocoyam and canna plants were able to negatively interfere with theGanodermawood decay, inhibit the colony, and reduce the initial root infection of oil palm. Keywords: antagonistic in vitro,Ganoderma boninense, ligninolytic fungi, root necrosis, wood decay.