Potential use and mode of action of the new strainBacillus thuringiensisUM96 for the biological control of the grey mould phytopathogenBotrytis cinerea

Characterization of the antifungal and plant growth-promoting effects of diffusible and volatile organic compounds produced by Pseudomonas fluorescens strains

“…Various studies have reported the capacity of diverse bacterial genera to control fungal diseases; however, the genera Bacillus and Pseudomonas appear frequently in the literature (Martínez-Absalón et al, 2014;Santoyo et al, 2012). In particular, diverse Pseudomonas spp., which are common and abundant inhabitants of the rhizosphere, have the capacity to inhibit or suppress plant diseases (Stutz et al, 1985;Weller et al, 2002;Weller, 2007;Singh et al, 2012;Singh et al, 2013).…”

A glimpse of the endophytic bacterial diversity in roots of blackberry plants (Rubus fruticosus)

“…Members of the Bacillus, Pseudomonas, and Burkholderia genera have been widely recognized by their biocontrol and plant growth-promoting activities (Santoyo et al, 2012). These species produce a number of metabolites with a wide range of functions and applications, such as antibiotics, volatile organic compounds, and antifungal, antiviral, and insecticidal compounds (Ryan et al, 2008;Martínez-Absalón et al, 2014). These three genera have also been detected as endophytes in the roots of Mexican husk tomato plants (Physalis ixocarpa Brot.)…”

El género Bacillus como agente de control biológico y sus implicaciones en la bioseguridad agrícola

“…Así también, Martínez-Absalón et al (2014) observaron que al someter sobrenadantes líquidos de B. thuringiensis UM96 al inhibidor especifico de quitinasas, alosamidina, és-tos perdieron la capacidad de inhibir el crecimiento de Botrytis cinerea, evidenciando la importancia de las quitinasas en la actividad de control biológico de dicha cepa. De manera similar, diferentes autores han reportado a las β-glucanasas como componentes importantes en la actividad control biológico de cepas del género Bacillus; Aktuganov et al (2007), reportaron que las β-1,3-glucanasas son las principales enzimas líticas involucradas en el control in vitro de Bipolaris sorokiniana por Bacillus sp.…”

“…Chien-Jui et al (2004) cloned the gene chiCW of B. cereus 28-9 on Escherichia coli DH5α and showed that the purified products presented a high inhibitory activity in the germination of Botrytis elliptica spores. Likewise, Martínez-Absalón et al (2014) observed that when placing liquid B. thuringiensis UM96 supernatants in the specific inhibitor of chitinases, alosamidine, they lost their ability to inhibit the growth of Botrytis cinerea, thus showing the importance of chitinases on the biological control activity of the strain. Similarly, different authors have reported β-glucanases as important (Bowman y Free, 2006;Latgé, 2007).…”