dc.creator | Gutierrez, Alejandra Concepción | |
dc.creator | Machado, J. A. R. | |
dc.creator | Hubner Campos, R. | |
dc.creator | Pennisi, M. A. | |
dc.creator | Rodrigues, J. | |
dc.creator | Lopez Lastra, Claudia Cristina | |
dc.creator | Garcia, Juan Jose | |
dc.creator | Fernandes, É. K. K. | |
dc.creator | Luz, C. | |
dc.date.accessioned | 2018-06-18T18:48:33Z | |
dc.date.accessioned | 2018-11-06T12:59:57Z | |
dc.date.available | 2018-06-18T18:48:33Z | |
dc.date.available | 2018-11-06T12:59:57Z | |
dc.date.created | 2018-06-18T18:48:33Z | |
dc.date.issued | 2016-11 | |
dc.identifier | Gutierrez, Alejandra Concepción; Machado, J. A. R.; Hubner Campos, R.; Pennisi, M. A.; Rodrigues, J.; et al.; New insights into the infection of the American cockroach Periplaneta americana nymphs with Metarhizium anisopliae s.l. (Ascomycota: Hypocreales); Wiley Blackwell Publishing, Inc; Journal of Applied Microbiology; 121; 5; 11-2016; 1373-1383 | |
dc.identifier | 1364-5072 | |
dc.identifier | http://hdl.handle.net/11336/49076 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1872034 | |
dc.description.abstract | Aims: To study the marked resistance of Periplaneta americana to entomopathogenic Metarhizium anisopliae. Methods and Results: The low susceptibility of 4th instar nymphs applied topically with conidia seemed to be related to an active removal of conidia by the cockroach and to a disabled or retarded germination and subsequent development of conidia on the cuticle (up to 80% germination in the next 7 days after application). Inhibitions or delays of germination were related to the composition of the epicuticular fatty acids (30·1% w/w oleic, 28·3% w/w linoleic, 24·5% w/w palmitic and 11·7% w/w stearic acid) reported here. Propagules invading the nymphs through the cuticle took at least 3 days to reach the haemocoel, and no propagules were found after day 8 post-treatment. Strain IP 46 infected >50% of nymphs treated with doses ≥2 × 104 hyphal bodies (HB) nymph−1 and reduced the survival of nymphs ≤50%. Most nymphs (>70%) survived after injection of 6 × 103 and 2 × 103 HB nymph−1. Conclusions: Findings emphasize a distinct resistance of nymphs of the American cockroach to infections by M. anisopliae. Significance and Impact of the Study: Our findings provide support for the development of biological control of this synanthropic cockroach pest. | |
dc.language | eng | |
dc.publisher | Wiley Blackwell Publishing, Inc | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jam.13254 | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/jam.13254 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | BEHAVIOUR | |
dc.subject | COCKROACH | |
dc.subject | CUTICULAR FATTY ACIDS | |
dc.subject | ENTOMOPATHOGENIC FUNGUS | |
dc.subject | HAEMOLYMPH | |
dc.title | New insights into the infection of the American cockroach Periplaneta americana nymphs with Metarhizium anisopliae s.l. (Ascomycota: Hypocreales) | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |