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conferenceseries
.com
Volume 7, Issue 2 (Suppl)
J Ecosyst Ecography, an open access journal
ISSN:2157-7625
September 18-20, 2017
September 18-20, 2017 Toronto, Canada
Joint Conference
International Conference on
International Conference on
Environmental Microbiology and Microbial Ecology
&
Ecology and Ecosystems
Catherine Cesa-Luna et al., J Ecosyst Ecography 2017, 7:2 (Suppl)
DOI: 10.4172/2157-7625-C1-030
Antagonism of
Pseudomonas
sp. EMM-1 and its potential as biocontrol agent
Catherine Cesa-Luna, Joel de la Cruz-Enríquez, Ana Laura Hernández-Tenorio, Fernando Xicale-Nava, Yolanda Elizabeth Morales-García, Rocío Pérez-y-Terrón,
Antonino Báez-Rogelio, Jesús Muñoz-Rojas
and
Verónica Quintero-Hernández
Benemérita Universidad Autonoma de Puebla, Mexico
B
acteria may exhibit antagonistic interactions to compete for space and nutrients in their habitat. This competition has been
mainly evaluated by double-layer agar and simultaneous inhibition assays. The best known antagonistic bacteria are
Enterococcus
,
Lactococcus
,
Streptomyces
,
Bacillus
,
Pseudomonas
,
Klebsiella
,
Escherichia
and
Burkholderia
due to their potential to produce
inhibitory substances such as broad-spectrum antibiotics, organic acids, siderophores, antifungal and bacteriocins. Our study model,
Pseudomonas
sp. EMM-1, is a Gram-negative bacterium isolated from contaminated soil highly competitive due to the production
of one or more inhibitory substances. It has been demonstrated its antimicrobial activity against diverse beneficial and pathogenic
microorganisms including the genera
Bradyrhizobium
,
Azotobacter
,
Staphylococcus
,
Streptococcus
,
Klebsiella
and
Burkholderia
; as
well as the
phytopathogenic
fungi
Pantoea
and
Fusarium
. In this work the ability of Pseudomonas sp. EMM-1 to inhibit diverse fungi
isolated from soil and plants with fungal diseases, such as
Aspergillum
and
Fusarium
was verified by the double-layer agar assay,
leading us to assume its potential as biocontrol agent.
Biography
Catherine Cesa-Luna has completed her bachelor’s degree in Clinical Chemistry in 2012 from Universidad Veracruzana, México and obtained her master’s degree
in Microbiologic Sciences (Medical Microbiology) in 2016 at the Benemerita Universidad Autónoma de Puebla, Mexico; where she is currently pursuing her Ph.D
in microbiology. She is evaluating the antimicrobial activity of synthetic IsCT-like peptides derived from scorpion venoms on bacteria of clinical interest and also
working on the purification and identification of compounds related to the activity of the inhibitory substance produced by
Pseudomonas
sp. EMM-1.
kathy_cl_3@hotmail.com