Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107239
Research center of Embrapa/Collection: Embrapa Acre - Artigo em periódico indexado (ALICE)
Date Issued: 2019
Type of Material: Artigo em periódico indexado (ALICE)
Authors: VALDETARO, D. C. O. F.
HARRINGTON, T. C.
OLIVEIRA, L. S. S.
GUIMARÃES, L. M. S.
MCNEW, D. L.
PIMENTA, L. V. A.
GONCALVES, R. C.
SCHURT, D. A.
ALFENAS, A. C.
Additional Information: Denise C. O. F. Valdetaro, Universidade Federal de Viçosa; Thomas C. Harrington, Iowa State University; Leonardo S. S. Oliveira, Universidade Federal de Viçosa; Lúcio M. S. Guimarães, Universidade Federal de Viçosa; Douglas L. McNew, Iowa State University; Lucas V. A. Pimenta, Universidade Federal de Viçosa; RIVADALVE COELHO GONCALVES, CPAF-AC; DANIEL AUGUSTO SCHURT, CPAF-RR; Acelino C. Alfenas, Universidade Federal de Viçosa.
Title: A host specialized form of Ceratocystis fimbriata causes seed and seedling blight on native Carapa guianensis (andiroba) in Amazonian rainforests.
Publisher: Fungal Biology, v. 123, n. 2, p. 170-182, Feb. 2019.
Language: en
Keywords: Produto florestal não madeireiro (PFNM)
Enfermedades fungales de las plantas
Plantas de semilleros
Semillas
Variación genética
Repeticiones de microsatélite
Marcador microssatélite
Stem blight
Tizón del tallo
Description: Ceratocystis fimbriata Ellis & Halsted recently was recorded causing seed and seedling blight on Carapa guianensis Aubl. (andiroba), a tree species native to the Amazon Rainforest and prized for its valuable timber and medicinal seed oil. C. fimbriata more commonly causes wilt type diseases in woody hosts, especially on non-native host trees. However, on andiroba the disease occurs on seedlings and seeds, affecting the species regeneration. We studied 73 isolates of C. fimbriata on andiroba from three regions of the Amazon Basin to see if they represented natural or introduced populations. Analysis of ITS rDNA sequences and phylogenetic analysis of mating type genes revealed new haplotypes of C. fimbriata from the Latin American Clade that were closely related to other Brazilian populations of the fungus. In mating experiments, andiroba isolates were inter-fertile with tester strains of C. fimbriata from Brazil and elsewhere, confirming that they belong to a single biological species. Using microsatellite markers, 14 genotypes and populations with intermediate levels of genetic variability were found, suggesting that the fungus is indigenous to the Amazon Basin. Inoculation tests indicated that the andiroba isolates are host-specialized on andiroba, supporting the proposition of the special form C. fimbriata f. sp. carapa.
Thesagro: Andiroba
Carapa Guianensis
Doença Fúngica
Fungo
Ceratocystis Fimbriata
Plântula
Semente
Variação Genética
Marcador Genético
NAL Thesaurus: Nontimber forest products
Fungal diseases of plants
Seedlings
Seeds
Genetic variation
Genetic markers
Microsatellite repeats
Data Created: 2019-03-19
ISSN: 1878-6146
Appears in Collections:Artigo em periódico indexado (CPAF-AC)

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