An insect parasitoid carrying an ochratoxin producing fungus.
The insect parasitoid Prorops nasuta has been introduced from Africa to many coffee-producing countries in an attempt to control the coffee berry borer. In this paper, we report on the sequencing of the ITS LSU-rDNA and beta-tubulin loci used to identify a fungus isolated from the cuticle of a P. nasuta that emerged from coffee berries infected with the coffee berry borer. The sequences were compared with deposits in GenBank and the fungus was identified as Aspergillus westerdijkiae. The fungus tested positive for ochratoxin A production, with varying levels depending on the media in which it was grown. These results raise the possibility that an insect parasitoid might be disseminating an ochratoxin-producing fungus in coffee plantations.
Insect Biocontrol Laboratory, U. S. Department of Agriculture, Agricultural Research Service, Bldg. 011A, BARC-W, Beltsville, MD 20705, USA. vegaf@ba.ars.usda.gov
Fernando E
FE
Vega
Francisco
F
Posada
Thomas J
TJ
Gianfagna
Fabio C
FC
Chaves
Stephen W
SW
Peterson
D000818:Animals; D001230:Aspergillus / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D003069:Coffee / Q000469:parasitology; D004271:DNA, Fungal / Q000235:genetics / Q000302:isolation & purification; D007313:Insecta / Q000382:microbiology*; D013172:Spores, Fungal
D003069:Coffee; D004271:DNA, Fungal