期刊
MYCOLOGIA
卷 98, 期 1, 页码 31-42出版社
TAYLOR & FRANCIS INC
DOI: 10.3852/mycologia.98.1.31
关键词
Coffea arabica; Coffea congensis; Coffea dewevrei; Coffea liberica; endophytes; OTA
类别
Tissues from Coffea arabica, C. congensis, C. dewevrei and C. liberica collected in Colombia, Hawaii and at a local plant nursery in Maryland were sampled for the presence of fungal endophytes. Surface sterilized tissues including roots, leaves, stems and various berry parts were plated on yeast-malt agar. DNA was extracted from a set of isolates visually recognized as Penicillium, and the internal transcribed spacer region and partial LSU-rDNA was amplified and sequenced. Comparison of DNA sequences with GenBank and unpublished sequences revealed the presence of 11 known Penicillium species: P. brevicompactum, P. brocae, P. cecidicola, P. citrinum, P. coffeae, P. crustosum, P. janthinellum, P. olsonii, P. oxalicum, P. sclerotiorum and P. steckii as well as two possibly undescribed species near P. diversum and P. roseopurpureum. Ochratoxin A was produced by only four isolates, one isolate each of P. brevicompactum, P. crustosum, P. olsonii and P. oxalicum. The role these endophytes play in the biology of the coffee plant remains enigmatic.
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