BECAS
ONETTO andrea liliana
congresos y reuniones científicas
Título:
CHARACTERIZATION OF ENDOPHYTIC SPORULATING BACTERIA WITH PLANT GROWTH PROMOTING PROPERTIES ISOLATED FROM Ilex paraguariensis (YERBA MATE)
Autor/es:
ONETTO, ANDREA; LACZESKI, MARGARITA; BERGOTTINI, VERÓNICA; LOPEZ, ANA; SOSA, ALBERTO; WISS, FABIO; VILLALBA, LAURA; ZAPATA, PEDRO; OTEGUI, MÓNICA
Lugar:
Foz do Iguaçu
Reunión:
Congreso; 11th International Plant Molecular Biology Congress; 2015
Institución organizadora:
The Brazilian Genetics Society (SBG)
Resumen:
Ilex paraguariensis (yerba mate) is a species of the family Aquifoliaceae. It is well known as the source of the beverage called mate, traditionally consumed in central and southern South America. The yerba mate is grown and processed in South America, specifically in northern Argentina, Paraguay, Uruguay and southern Brazil.Researches on microorganisms in several industrial crops have shown characteristics associated with increased production. There have been several studies on improving the cultivation of yerba mate to increase productivity, there is currently little information on the effect of microorganisms on growth.The aim of this work was isolate, select and characterize bacteria endophytes spore-producing with plant growth promoting properties associated with yerba mate that can be used as bio-fertilizers.We worked with 30 yerba mate seedlings from which were isolated and selected 9 strains of endophytic bacteria spores. To assess the potential for plant growth promotion of the isolated bacteria were determined: the ability to synthesis of indole acetic acid (IAA), production of siderophores, solubilization of inorganic phosphate and nitrogen fixation.The isolated bacteria were identified based on the gene sequence 16sRNA as belonging to the following genera and species: Bacillus pumilus and Paenibacillus spp.We concluded that endophytic bacteria capable of producing spores isolated from Ilex paraguariensis exhibit characteristics associated with promoting plant growth. These properties must be evaluated in vitro to demonstrate an increase in crop yields of yerba mate, permitting the use of isolates as biofertilizers, with the advantage of staying in crops.