Two subpopulations of Colletotrichum acutatum are responsible for antracnose in strawberry and leatherleaf fern in Costa Rica
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Two subpopulations of Colletotrichum acutatum are responsible for antracnose in strawberry and leatherleaf fern in Costa Rica. / Stokholm, Michaela Schiller; Lübeck, Mette; Sundelin, Thomas; Fernando Campos Melendez, Luis; Danielsen, Solveig; Jensen, Dan Funck; Madriz Ordenana, Kenneth.
I: European Journal of Plant Pathology, Bind 116, Nr. 2, 2006, s. 107-118.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Two subpopulations of Colletotrichum acutatum are responsible for antracnose in strawberry and leatherleaf fern in Costa Rica
AU - Stokholm, Michaela Schiller
AU - Lübeck, Mette
AU - Sundelin, Thomas
AU - Fernando Campos Melendez, Luis
AU - Danielsen, Solveig
AU - Jensen, Dan Funck
AU - Madriz Ordenana, Kenneth
PY - 2006
Y1 - 2006
N2 - Strawberry, Fragaria × ananassa, and leatherleaf fern, Rumohra adiantiformis, are two important crops in Costa Rica. One of the most severe diseases affecting these crops is anthracnose, caused by members of the fungal genus, Colletotrichum (teleomorph; Glomerella). Eighty single-spore isolates from strawberry and leatherleaf fern were identified as Colletotrichum acutatum by species-specific PCR, and were further characterised by Universally Primed PCR (UP-PCR) fingerprinting analysis, and sequence analysis of the ribosomal internal transcribed spacer (ITS) region. Morphological differences, genotypic variation revealed by UP-PCR fingerprinting analysis, and a single sequence polymorphism within the ITS2 region were found between the isolates from strawberry and leatherleaf fern, respectively. The UPGMA cluster analysis of the fingerprints clearly separated the isolates derived from strawberry and leatherleaf fern into two different clusters. Pathogenicity assays on detached strawberry fruits confirmed the apparent difference between the two groups of isolates. It is therefore suggested that the pathogens responsible for strawberry anthracnose fruit rot and leatherleaf fern anthracnose in Costa Rica, belong to two distinct subpopulations of C. acutatum.
AB - Strawberry, Fragaria × ananassa, and leatherleaf fern, Rumohra adiantiformis, are two important crops in Costa Rica. One of the most severe diseases affecting these crops is anthracnose, caused by members of the fungal genus, Colletotrichum (teleomorph; Glomerella). Eighty single-spore isolates from strawberry and leatherleaf fern were identified as Colletotrichum acutatum by species-specific PCR, and were further characterised by Universally Primed PCR (UP-PCR) fingerprinting analysis, and sequence analysis of the ribosomal internal transcribed spacer (ITS) region. Morphological differences, genotypic variation revealed by UP-PCR fingerprinting analysis, and a single sequence polymorphism within the ITS2 region were found between the isolates from strawberry and leatherleaf fern, respectively. The UPGMA cluster analysis of the fingerprints clearly separated the isolates derived from strawberry and leatherleaf fern into two different clusters. Pathogenicity assays on detached strawberry fruits confirmed the apparent difference between the two groups of isolates. It is therefore suggested that the pathogens responsible for strawberry anthracnose fruit rot and leatherleaf fern anthracnose in Costa Rica, belong to two distinct subpopulations of C. acutatum.
KW - anthracnose
KW - Fragaria x ananassa
KW - internal transcribed spacer (ITS) region
KW - pathogenicity test
KW - Rumohra adiantiformis
KW - Universally Primed polymerase chain reaction (UP-PCR)
U2 - 10.1007/s10658-006-9045-0
DO - 10.1007/s10658-006-9045-0
M3 - Journal article
VL - 116
SP - 107
EP - 118
JO - European Journal of Plant Pathology
JF - European Journal of Plant Pathology
SN - 0929-1873
IS - 2
ER -
ID: 8032762