Fungal-Infection on amorphophallus titanum
What's Happening
Fungal pathogens including Aspergillus spp., Trichoderma spp., Perenniporia spp., and Cerrena spp. infect tuber tissues, altering rhizosphere bacterial community structure. Infected plants show reduced Proteobacteria, Acidobacteria, and Actinobacteria populations with concurrent Firmicutes dominance in rhizosphere soil. Fungal infection disrupts root exudate chemistry, creating favorable conditions for opportunistic bacterial colonization.
How to Fix It
- 1
Isolate infected plants immediately to prevent cross-contamination
- 2
Remove and destroy visibly infected tuber tissue with sterilized tools
- 3
Apply Trichoderma harzianum as biocontrol agent to suppress pathogenic fungi
- 4
Repot in fresh sterile media with improved drainage (add 30-40% perlite)
- 5
Monitor bacterial community recovery through soil testing if available
How to Prevent It
Use well-draining soil mix with perlite (30-40%) to prevent waterlogging that favors fungal growth. Sterilize all potting media before use. Avoid mechanical damage to tuber during repotting which creates entry points for pathogens.