Trabajo Fin de Máster EVALUACIÓN DE LA ACTIVIDAD BIOESTIMULANTE Y BIOPLAGUICIDA DE CEPAS BACTERIANAS AISLADAS DE ACEITUNA SOBRE DOS FITOPATOGENOS , DOS SEMILLAS COMESTIBLES Y PLANTAS IN VITRO
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2024-01-10
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Jaén: Universidad de Jaén
Resumen
[ES] El estudio de la actividad bioestimulante y bioplaguicida de 175 cepas
bacterianas mostró que el 10,28% para Phytophthora sp. y 6,32% para
Pseudomonas savastanoi tenían actividad biocontroladora in vitro. La utilización
de diferentes medios de cultivo no mostró resultados significativos frente a la
liberación de sustancias antimicrobianas, siendo el mejor medio para dicha
liberación el MRS. El estudio sobre las semillas también aseguró la actividad de
ciertas cepas, principalmente la AV-685, AV-675, AV-691, AV-649 en alfalfa, y
AV-642, AV-677 y AV-731 en tomate cherry. Además, ciertas cepas
incrementaban el efecto de aminoácidos bioestumuladores comerciales.
Igualmente la mayoría de ellas liberaron una concentración óptima de ácido
indol-ácetico para la planta.
[EN] The study of biostimulant and biopesticide activity of 175 bacterial strains showed that 10,28% had inhibitory activity in vitro against Phytophthora sp. and 6,32% against Pseudomonas savastanoi. The use of different culture media did not show significant differences regarding the release of antimicrobial substances, being MRS the best culture media for such release. The study of the seeds, also ensured the activity of certain strains, mainly AV-685, AV-675, AV-691, AV-649 in alfalfa and, AV-642, AV-677 and AV-731 in cherry tomato. In addition, certain strains, increased the commercial biostimulantory amino acids. Likewise, most of them were able to release an optimal concentration of indol- acetic acid for the plant.
[EN] The study of biostimulant and biopesticide activity of 175 bacterial strains showed that 10,28% had inhibitory activity in vitro against Phytophthora sp. and 6,32% against Pseudomonas savastanoi. The use of different culture media did not show significant differences regarding the release of antimicrobial substances, being MRS the best culture media for such release. The study of the seeds, also ensured the activity of certain strains, mainly AV-685, AV-675, AV-691, AV-649 in alfalfa and, AV-642, AV-677 and AV-731 in cherry tomato. In addition, certain strains, increased the commercial biostimulantory amino acids. Likewise, most of them were able to release an optimal concentration of indol- acetic acid for the plant.