Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/178336
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Aphicidal activity of surfactants produced by Bacillus atrophaeus L193 |
Autor: | Rodríguez, Miguel; Marín, Ana; Torres, Marta; Béjar, Victoria; Campos, Mercedes CSIC ORCID; Sampedro, Inmaculada CSIC ORCID | Palabras clave: | Bacillus atrophaeus L193 Biosurfactants Lipopeptides, Aphids, Insecticidal activity |
Fecha de publicación: | 2018 | Citación: | Frontiers in Microbiology 9 (2018) | Resumen: | The biosurfactants produced by Bacillus atrophaeus L193 was examined by their use in the control of the aphid Rhopalosiphum padi in order to suggest a friendly alternative to chemical pesticides. A screening of different culture media demonstrated the highest biosurfactant production by L193 in TSB supplemented with colloidal chitin. Surfactants, which are produced in large quantities (2.04 g/L), reduce surface tension to 33 mN/m. Electrospray Q-TOFS MS analysis demonstrated that lipopeptides, such as surfactins, fengycins, bacillomycins and iturins, are the predominant metabolites present in biosurfactants produced by strain L193. Treatment with L193 surfactants led to an aphid mortality rate of 59.8% within 24 h. Microscopy analysis showed that these compounds caused insect death by affecting cuticle membranes. An evaluation of aphid feeding activity also demonstrated that aphid feeding capacity is affected by treatment with surfactants. Moreover, microbial cultures of strain L193 and their supernatants also showed high levels of activity against R. padi, which is probably due to the presence of surfactants and hydrolytic enzymes such as proteases and glucanases. This study demonstrates that B. atrophaeus L193 is an effective treatment for plants affected by aphids. | Versión del editor: | https://www.frontiersin.org/articles/10.3389/fmicb.2018.03114/full | URI: | http://hdl.handle.net/10261/178336 | DOI: | 10.3389/fmicb.2018.03114 | Identificadores: | doi: 10.3389/fmicb.2018.03114 issn: 1664-302X |
Aparece en las colecciones: | (EEZ) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2018_Rodriguez_Fm OA.pdf | 2,99 MB | Unknown | Visualizar/Abrir |
CORE Recommender
PubMed Central
Citations
8
checked on 19-abr-2024
SCOPUSTM
Citations
26
checked on 23-abr-2024
WEB OF SCIENCETM
Citations
23
checked on 28-feb-2024
Page view(s)
228
checked on 21-abr-2024
Download(s)
274
checked on 21-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Artículos relacionados:
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.