Glomerella leaf spot caused by a nonhomothallic strain of Glomerella cingulata on highbush blueberry nursery plants in Buenos Aires, Argentina.
Perez B. A., Wright E. R., Berretta M. F.
Author Affiliation: INTA-CICVyA-IMYZA, Nicolas Repetto y De Los Reseros, Hurlingham 1686, Buenos Aires, Argentina.
Plant Disease 96 :764
Abstract : In February 2009, irregular-shaped leaf spots affected blueberry (Vaccinium corymbosum) nursery plants in Buenos Aires. The fungus was identified as Colletotrichum gloeosporioides [Glomerella cingulata] with traits similar to those already described. A BLASTN search revealed 100% identity of the sequence (535 bp long) with G. cingulata from citrus and mango and one from coffee identified as C. kahawae (GenBank Accession No. JF908919). The nucleotide sequence was deposited in GenBank (Accession No. JQ340087). Pathogenicity was verified on young plants and detached leaves of highbush blueberry, olive (Olea europaea), and marketed fruits of apple, mango, orange, and tomato. The fungus was reisolated from inoculated plant parts fulfilling Koch's postulates. The disease was previously cited in Argentina but to our knowledge this is thought to be the first report of a nonhomothallic strain of G. cingulata from highbush blueberry colonizing and deteriorating fruits of apple, mango, orange, and tomato.