Cocoa (Theobroma cacao L.) and chili pepper (Capsicum annuum are commonly cultivated by farmers, in some cases, both crops grown together intercropping systems. The main pathogen infected cocoa is the Phytophthora sp. fungus, which causes fruit rot, stem cancer, leaf blight, while Colletotrichum anthracnose plants. ability of endophytic bacteria to inhibit growth fungi bacterial pathogens well ...

Abstract Failure in the treatment of P. aeruginosa, due to its broad spectrum resistance, has been associated with increased patient mortality. One alternative approach for infection control is quorum quenching which was found decrease virulence such pathogen. In this study, efficiency a recombinant Ahl-1 lactonase formulated as hydrogel investigated multidrug resistant (MDR) aeruginosa infecte...

Quorum sensing (QS) in Pseudomonas aeruginosa regulates the production of many virulence factors and plays an important role in the pathogenesis of P. aeruginosa infection. N-acyl homoserine lactones (AHL) are major QS signal molecules. Recently, a novel AHL-lactonase enzyme, AiiM, has been identified. The aim of this study was to evaluate the effect of AiiM on the virulence of P. aeruginosa in...

Abstract. Suryanti E, Rusamana I, Wahyudi AT, Akhdiya A, Sukamdjaja D. 2022. Constructing and expressing acyl-homoserine lactone lactonase (aiiA) gene for enhancing Solanum tuberosum resistance against soft rot disease. Biodiversitas 23: 1780-1787. Expression of the genes associated with pectinase production in disease Dickeya spp. are regulated by quorum sensing mechanism using acyl homoserine...

N-Acylhomoserine lactone (AHL)-degrading enzyme, AiiM, was identified from the potato leaf-associated Microbacterium testaceum StLB037. In this study, we cloned eight aiiM gene homologues from other AHL-degrading Microbacterium strains. The similarity of the chromosomal locus of the aiiM gene is associated with the phylogenetic classification based on 16S rRNA. Degenerate PCR revealed that the ...

infection, even when challenged with comparatively low numbers of bacteria. The result is a triumph for the approach of mining bacterial metabolic diversity for applied uses. In this case, Dong et al. capitalized on the discovery that many bacteria can degrade, and so inactivate, AHLs. Earlier, the same group 5 had isolated hundreds of bacterial species from soil and screened them for the abili...

A new representative of the Phosphotriesterase-Like Lactonases (PLLs) family from the hyperthermophilic crenarchaeon Vulcanisaeta moutnovskia has been characterized and crystallized. VmoLac is a native, proficient lactonase with promiscuous, low phosphotriesterase activity. VmoLac therefore represents an interesting candidate for engineering studies, with the aim of developing an efficient bact...

Planococcus is a Gram-positive halotolerant bacterial genus in the phylum Firmicutes, commonly found in various habitats in Antarctica. Quorum quenching (QQ) is the disruption of bacterial cell-to-cell communication (known as quorum sensing), which has previously been described in mesophilic bacteria. This study demonstrated the QQ activity of a psychrotolerant strain, Planococcus versutus stra...