Reusing waste biomass in crop protection-Calcinated oyster shell powder enhances rhizospheric microbial-mediated suppression of root-knot nematodes.

ABSTRACT: Root-knot nematodes (RKNs), particularly Meloidogyne incognita, are one of the most destructive plant-parasitic nematodes (PPNs) affecting crop production worldwide. Previous earlier study revealed that calcinated oyster shell powder (OSP) possessed excellent suppression of tobacco RKN disease. However, the suppression mechanism of OSP against RKNs still remains unrevealed. Hence, this study aimed to clarify the suppression mechanism of oyster shell powder against RKNs by pot experiments and high-throughput sequencing. The results showed that calcinated OSP reduced over 38% of the tobacco root-knot index by inhibiting the migration of second-stage juveniles of Meloidogyne incognita (J2) in soil. Furthermore, calcinated OSP reduced J2 density by 43.69% in the tobacco rhizosphe

SUBMITTER: Jiang Q 

PROVIDER: S-EPMC12414952 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature