Biocontrol of Fusarium oxysporum f. sp. cepae on Indonesian Local Garlic Plants (Lumbu Hijau) Using a Consortium of Bacillus amyloliquefaciens B1 and Arbuscular Mycorrhizal Fungi

Summary

Researchers developed an effective biological solution to protect Indonesian garlic plants from a destructive fungal disease called Fusarium wilt. Using a combination of beneficial bacteria (Bacillus amyloliquefaciens) and fungi (arbuscular mycorrhizal fungi), they reduced disease damage by 39% while making plants grow larger and stronger. This natural approach offers a safer alternative to chemical fungicides and could help garlic farmers maintain healthy crops.

Background

Fusarium oxysporum f. sp. cepae causes serious wilt disease in garlic plants, significantly reducing crop yields. Indonesian local garlic variety Lumbu Hijau faces significant challenges from this soil-borne pathogen. Chemical fungicides present environmental and health risks, necessitating alternative biocontrol approaches.

Objective

This study aimed to evaluate the effectiveness of a consortium of Bacillus amyloliquefaciens B1 and arbuscular mycorrhizal fungi (AMF) in controlling Fusarium wilt on Indonesian local garlic plants (Lumbu Hijau). The research investigated both disease suppression and plant growth promotion through this microbial combination.

Results

B. amyloliquefaciens B1 inhibited F. oxysporum growth by 53.41% in vitro. The consortium application reduced disease incidence by 39.17% with 84% efficacy in vivo, while significantly enhancing plant height (41.99 cm vs 34.27 cm control), shoot weight, root weight, and total wet weight. Mycorrhizal infection increased from 7.96% with AMF alone to 23.84% with the consortium.

Conclusion

The consortium of B. amyloliquefaciens B1 and AMF effectively controlled Fusarium wilt on garlic plants while promoting plant growth. B. amyloliquefaciens B1 functions as a Mycorrhizal Helper Bacterium, enhancing AMF colonization. Future research should investigate changes in rhizosphere and root microbiome communities following consortium application.
Scroll to Top