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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Mycology and Nematology Genetic Diversity and Biology Laboratory » Research » Publications at this Location » Publication #394678
Research Project: Fungal Systematics and Diagnostic Resource Development for Safeguarding Plant Health

Location: Mycology and Nematology Genetic Diversity and Biology Laboratory

Title: Colletotrichum siamense causing anthracnose on Etlingera elatior

Author
item DUARTE, INGRID - Federal University - Brazil
item VELOSO, JOSIENE - Federal University - Brazil
item AMARAL, ANA - Federal University - Brazil
item DA SILVA, ANTHONY - Federal University - Brazil
item SILVA, HUMBERSON - Federal University - Brazil
item BALBINO, VALDIR - Federal University - Brazil
item VIEIRA, WILLIE ANDERSON - Federal University - Brazil
item Castlebury, Lisa
item CÂMARA, MARCOS PAZ - Federal University - Brazil

Submitted to: Crop Protection
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/26/2022
Publication Date: 9/18/2022
Citation: Duarte, I.G., Veloso, J., Amaral, A.G., Da Silva, A.C., Silva, H.R., Balbino, V.D., Vieira, W.D., Castlebury, L.A., Câmara, M.S. 2022. Colletotrichum siamense causing anthracnose on Etlingera elatior. Crop Protection. 162(1). Article e106092. https://doi.org/10.1016/j.cropro.2022.106092.
DOI: https://doi.org/10.1016/j.cropro.2022.106092

Interpretive Summary: Torch ginger is an important ornamental plant widely cultivated in northeastern Brazil. However, a disease called anthracnose can affect it, making it less attractive by causing large sunken lesions on the flowers. In this study, the identity of the fungus causing this disease was investigated using DNA sequence data and microscopy. Colletotrichum siamense, which causes anthracnose on many diverse hosts was identified as the causal agent of this disease in Brazil. This information will be used by plant pathologists, extension personnel, plant breeders and regulatory officials to more rapidly identify the pathogens involved and to manage this disease, preventing losses and tracking pathogen movements.

Technical Abstract: Torch ginger (Etlingera elatior) is an important ornamental plant widely cultivated in northeastern Brazil. However, the quality of the bracts is frequently compromised by anthracnose caused by Colletotrichum. Because the Colletotrichum species causing torch ginger anthracnose was not known, the present study aimed to identify the Colletotrichum species associated with anthracnose of Etlingera elatior in Brazil and if multiple species were involved. Multilocus phylogenetic analyses including the loci APN2, APN2-MAT/IGS, CAL, GAP2-IGS, GAPDH, GS and TUB2 revealed C. siamense in association with torch ginger anthracnose in Brazil and worldwide.