A Novel Isolate of <i>Bacillus cereus</i> Promotes Growth in Tomato and Inhibits <i>Clavibacter michiganensis</i> Infection under Greenhouse Conditions
Nallely Solano-Alvarez,
Juan Antonio Valencia-Hernández,
Enrique Rico-García,
Irineo Torres-Pacheco,
Rosalía Virginia Ocampo-Velázquez,
Eleazar Máximo Escamilla-Silva,
Ana Luz Romero-García,
Ángel G. Alpuche-Solís,
Ramón Gerardo Guevara-González
Affiliations
Nallely Solano-Alvarez
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
Juan Antonio Valencia-Hernández
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
Enrique Rico-García
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
Irineo Torres-Pacheco
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
Rosalía Virginia Ocampo-Velázquez
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
Eleazar Máximo Escamilla-Silva
Departamento de Ingeniería Quimica, Tecnologico Nacional de Mexico, Ave. Tecnologico y A. Garcia-Cubas, S/N, Celaya, Guanajuato 38010, Mexico
Ana Luz Romero-García
División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosi 78216, Mexico
Ángel G. Alpuche-Solís
División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosi 78216, Mexico
Ramón Gerardo Guevara-González
C.A Ingeniería de Biosistemas, Facultad de Ingeniería, Campus Amazcala, Universidad Autónoma de Querétaro, Carretera Chichimequillas s/n km1, El Marques, Querétaro 76265, Mexico
The need to produce food in a sustainable way to counteract the effects of excessive use of agrochemicals opens the door to the generation of new technologies that are not based on fossil fuels and are less toxic to ecosystems. Plant growth-promoting bacteria (PGPB) could represent an alternative to chemical biofertilizers and pesticides offering protection for biotic and abiotic stresses. In this work, a bacterial isolate from roots of castor bean (Ricinus communis) was identified and named as Bacillus cereus strain “Amazcala” (B.c-A). This isolate displayed the ability to solubilize inorganic phosphate and produce gibberellic acid (GA3). Moreover, this bacterium provided significant increases in height, stem width, dry weight, and total chlorophyll content in tomato plants. Interestingly, B.c-A also significantly decreased the severity of bacterial canker disease on tomato caused by Clavibacter michiganensis (Cmm) in preventive disease assays under greenhouse conditions. Based on our results, B.c-A can be considered as PGPB and a useful tool in Cmm disease control on tomato plant under greenhouse conditions.
