Harnessing Multifunctional Bacillus thuringiensis for Plant Growth Promotion and Biocontrol Potential Against Spodoptera frugiperda

Multifunctional endophytic bacteria in taro suppress Phytophthora colocasiae and enhance plant growth: a sustainable biocontrol approach

This is the first report describing Bacillus stercoris as a multifunctional endophytic biocontrol and plant growth-promoting bacterium associated with taro, highlighting their potential as eco-friendly bioinoculants for the sustainable management of taro leaf blight.

Brevicoryne-Kill: A Novel Eco-Friendly Biopesticide Based on Bacillus thuringiensis against Brevicoryne brassicae (L.) (Hemiptera: Aphididae)

Screening and Characterization of Native Microbial Antagonists for the Development of a Multi-Strain Biocontrol Consortium against Ralstonia solanacearum

Bacterial wilt caused by Ralstonia solanacearum remains difficult to manage sustainably, creating a need for compatible native microbial antagonists with complementary biocontrol traits. This study isolated four rhizosphere microorganisms—Trichoderma viride (Tv), Pseudomonas fluorescens (Pf), Bacillus subtilis (Bs) and Azotobacter chroococcum (Ac)—from healthy eggplant plants surviving in bacterial-wilt-affected fields and assessed their antagonistic, biochemical, plant-growth-associated and compatibility characteristics. In dual-culture assays, Pf showed the highest inhibition of R. solanacearum (68.50%; 18.40 mm inhibition zone), followed by Bs (55.40%; 15.60 mm). Hydrolytic enzyme screening indicated overlapping amylase, protease and lipase activities among the antagonists, with Bs showing a 16.5 mm protease clearance zone and Pf a 14.2 mm zone. Siderophore screening showed the largest CAS halo for Pf (22.40 mm), which also exhibited a strong positive reaction for HCN production. Ac produced the highest indole-3-acetic acid concentration (32.60 µg/ml), followed by Pf (28.40 µg/ml). Cross-streak assays showed no visible inter-strain inhibition among Tv, Pf, Bs and Ac under the tested conditions. These findings indicate complementary in vitro functional traits and preliminary mutual compatibility among the four isolates, supporting their further evaluation as candidate components of a multi-strain biocontrol consortium. Molecular identification, formulation assessment and greenhouse and field validation remain necessary before practical application.

Systematic Investigation of the Biocontrol Potential of Bacillus velezensis B05 against Soybean Root Rot Pathogen Fusarium spp.

Results indicate that B. velezensis B05 has potential as a multifunctional biocontrol agent for sustainable management of soybean root rot.

Host-recruited Bacillus and Pseudomonas strains provide potential biocontrol and yield protection against rice bacterial leaf blight

Pronounced cultivar × treatment interactions confirmed that PGPR efficacy is modulated by host genetic background, with resistant varieties carrying pyramided Xa resistance genes showing additive responses to biological treatment.

Serratia liquefaciens and Bacillus velezensis for Biocontrol of Quinoa Leaf Spot: Bioactive Metabolites Inducing Hyphal Deformation and Plant Growth Promotion

This study confirmed the pathogenicity of fungal isolates associated with quinoa leaf spot in Qinghai, China, identified two promising biocontrol bacterial strains, and preliminarily characterized their antifungal substances.