International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 8, Issue:6, June, 2019

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(6): 3172-3181

CO2 Assimilation of Bean Plants (Phaseolus vulgaris L.) in Response to Defense Activators to Xanthomonas axonopodis pv. Phaseoli and its Variant Fuscans
Nazario Francisco Francisco1, Gabriel Gallegos Morales2*, Adalberto Benavides Mendoza3, Yisa María Ochoa Fuentes2, Francisco Castillo Reyes4, Ernesto Díaz López1, Alejandro Morales Ruíz1, Arturo Olivar Hernández1, Juan Antonio Juárez Cortes1, Jorge Francisco León de la Rocha1, Heliodoro Santiago Santiagoand Patricia Hernández Herrera1
1Cuerpo Académico “Ecofisiología aplicada a cultivos en zonas áridas” Universidad Tecnológica de Tehuacán, prolongación de la 1 sur No. 1101, San Pablo Tepetzingo, Tehuacán, Puebla
2Departamento de Parasitología y , 3Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1993. Buenavista, Saltillo, Coahuila, México
4Campo Experimental Saltillo, INIFAP, Carretera Saltillo-Zacatecas km 342+119, Colonia Hacienda de Buenavista, Saltillo, Coahuila, México
*Corresponding author

Common bacterial blight is one of the most important diseases in bean crop. Currently, the use of beneficial microorganisms to protect agricultural crops is booming, however, the control efficiency achieved with its application is even lower than conventional methods, which suggests more studies to understand the site and mechanism of protection. The present work was carried out with the purpose of evaluating the effect of the phytohormones jasmonic and salicylic acid, and of the beneficial microorganisms Trichoderma asperellum and Bacillus pumilus as foliar treatments for the protection against the bacterial common blight disease in bean plants. The phytopathogenic bacteria that cause this disease were isolated and identified through biochemical tests. The effect of these bacteria and the treatments on the assimilation of CO2, stomatal conductance and opening of bean plants were evaluated. Isolation of the bacteria Xanthomonas axonopodis pv. phaseoli(Xap) and Xanthomonas axonopodis pv. phaseoli var. fuscans(Xapf) was achieved. The analysis of variance of the evaluated variables indicated a significant difference due to the effect of phytopathogenic bacteria and treatments. The plants inoculated with the Xapf bacteria showed greater severity of the disease. The plants treated with jasmonic acid presented higher tolerance to the causal agents with respect to the rest of the treatments and reduced the assimilation of CO2. No statistically significant difference was found between the rest of the treatments and the control.

Keywords: Common bacterial Blight, Stomatal opening, Jasmonic acid, Bacillus pumilus

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Nazario Francisco Francisco, Gabriel Gallegos Morales, Adalberto Benavides Mendoza, Yisa María Ochoa Fuentes, Francisco Castillo Reyes, Ernesto Díaz López, Alejandro Morales Ruíz, Arturo Olivar Hernández, Juan Antonio Juárez Cortes, Jorge Francisco León de la Rocha, Heliodoro Santiago Santiago and Patricia Hernández Herrera. 2019. CO2 Assimilation of Bean Plants (Phaseolus vulgaris L.) in Response to Defense Activators to Xanthomonas axonopodis pv. Phaseoli and its Variant Fuscans.Int.J.Curr.Microbiol.App.Sci. 8(6): 3172-3181. doi:
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