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Diaphorina citri populations carrying the bacterial plant pathogen Candidatus Liberibacter asiaticus are more susceptible to infection by entomopathogenic fungi than bacteria‐free populations
Author(s) -
OrduñoCruz Nuvia,
GuzmánFranco Ariel W.,
RodríguezLeyva Esteban
Publication year - 2016
Publication title -
agricultural and forest entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.755
H-Index - 55
eISSN - 1461-9563
pISSN - 1461-9555
DOI - 10.1111/afe.12138
Subject(s) - diaphorina citri , biology , metarhizium anisopliae , beauveria bassiana , host (biology) , metarhizium , pathogen , entomopathogenic fungi , biological dispersal , microbiology and biotechnology , biological pest control , botany , hemiptera , ecology , population , demography , sociology
The presence of Candidatus L iberibacter asiaticus ( CLas ) modifies the susceptibility of Diaphorina citri to fungal infection. Using one isolate of each the fungal species Beauveria bassiana , Metarhizium anisopliae and Isaria fumosorosea , we first estimated the LC 50 for CLas ‐free adults of D. citri . The lowest LC 50 (1 × 10 4 conidia/mL) value was used to inoculate CLas ‐free and CLas ‐carrying adults of D. citri and their relative susceptibility was compared. CLas ‐carrying adults were more susceptible than CLas ‐free adults of D. citri to all three fungal isolates. The possibility of CLas exploiting D. citri as an alternative host, therefore ensuring its dispersal and survival, is discussed.