Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil.
White thread blight is one of the most common diseases affecting several tree species that grow in warm and humid regions. The typical symptoms of this disease include blighted leaves hanging by a white thread of fungal hyphae. Leaf samples exhibiting white thread blight symptoms were collected from neem (Azadirachta indica A. Juss) and Brazilian cherry pitanga (Eugenia uniflora L.) plants in Northeastern Brazil, and from Indian green-tea (Camellia sinensis (L.) O. Kuntze), coffee (Coffea arabica L.), and persimmon (Diospyros kaki L.) in agricultural areas neighboring the Atlantic forest in Southeastern Brazil. Fungal isolates were obtained indirectly from leaf fragments or directly by transferring mycelia and sclerotia to culture medium. Bright field and scanning electron microscopy images revealed the association of Rhizoctonia-like hyphae and basidiospores with the infected leaves. In pathogenicity tests, Rhizoctonia-like fungal isolates induced leaf necrosis on their hosts, and the pathogens were re-isolated from inoculated plants. Phylogenetic analyses based on sequences of the ITS rRNA region indicated the occurrence of Ceratobasidium lineages distinct from previously reported Ceratobasidium species. Our study leads to the description of two new species of Ceratobasidium: the fungal isolates from A. indica, C. sinensis, and E. uniflora were classified as Ceratobasidium niltonsouzanum sp. nov., and those obtained from C. arabica and D. kaki as Ceratobasidium chavesanum sp. nov.
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Format: | Artigo de periódico (quando a biblioteca tiver o título do periódico) biblioteca |
Language: | English |
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Trop. plant pathoL, 2018.
2018
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Subjects: | Binucleate Rhizoctonia, Phylogenetic analysis, |
Online Access: | http://biblioteca.incaper.es.gov.br/digital/handle/123456789/3189 https://doi.org/10.1007/s40858-018-0237-x |
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oai:https:--biblioteca.incaper.es.gov.br:123456789-31892024-07-28T15:45:34Z Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. MELO, M. P. de MATOS, K. S. MOREIRA, S. I. SILVA, F. F. CONCEIÇÃO, G. H. NECHET, K. HALFELD-VIEIRA, B. A. BESERRA JUNIOR, J. E. A. VENTURA, J. A. COSTA, H. FURTADO, E. L. ALVES, E. CERESINI, P. C. Maruzanete P. de Melo; Kedma S. Matos; Silvino I. Moreira; Fabiano F. Silva; Grace H. Conceição; Kátia L. Nechet; Bernardo A. Halfeld-Vieira; José E. A. Beserra Júnior; Jose Aires Ventura, Incaper; Helcio Costa, Incaper; Edson L. Furtado; Eduardo Alves; Paulo C. Ceresini. Binucleate Rhizoctonia Phylogenetic analysis White thread blight is one of the most common diseases affecting several tree species that grow in warm and humid regions. The typical symptoms of this disease include blighted leaves hanging by a white thread of fungal hyphae. Leaf samples exhibiting white thread blight symptoms were collected from neem (Azadirachta indica A. Juss) and Brazilian cherry pitanga (Eugenia uniflora L.) plants in Northeastern Brazil, and from Indian green-tea (Camellia sinensis (L.) O. Kuntze), coffee (Coffea arabica L.), and persimmon (Diospyros kaki L.) in agricultural areas neighboring the Atlantic forest in Southeastern Brazil. Fungal isolates were obtained indirectly from leaf fragments or directly by transferring mycelia and sclerotia to culture medium. Bright field and scanning electron microscopy images revealed the association of Rhizoctonia-like hyphae and basidiospores with the infected leaves. In pathogenicity tests, Rhizoctonia-like fungal isolates induced leaf necrosis on their hosts, and the pathogens were re-isolated from inoculated plants. Phylogenetic analyses based on sequences of the ITS rRNA region indicated the occurrence of Ceratobasidium lineages distinct from previously reported Ceratobasidium species. Our study leads to the description of two new species of Ceratobasidium: the fungal isolates from A. indica, C. sinensis, and E. uniflora were classified as Ceratobasidium niltonsouzanum sp. nov., and those obtained from C. arabica and D. kaki as Ceratobasidium chavesanum sp. nov. 2018-07-18T12:16:16Z 2018-07-18T12:16:16Z 2018 2018-07-17 Artigo de periódico (quando a biblioteca tiver o título do periódico) 21625 http://biblioteca.incaper.es.gov.br/digital/handle/123456789/3189 https://doi.org/10.1007/s40858-018-0237-x en Trop. plant pathoL, 2018. |
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Brasil |
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BR |
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Bibliográfico |
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America del Sur |
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Biblioteca Rui Tendinha de INCAPER |
language |
English |
topic |
Binucleate Rhizoctonia Phylogenetic analysis Binucleate Rhizoctonia Phylogenetic analysis |
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Binucleate Rhizoctonia Phylogenetic analysis Binucleate Rhizoctonia Phylogenetic analysis MELO, M. P. de MATOS, K. S. MOREIRA, S. I. SILVA, F. F. CONCEIÇÃO, G. H. NECHET, K. HALFELD-VIEIRA, B. A. BESERRA JUNIOR, J. E. A. VENTURA, J. A. COSTA, H. FURTADO, E. L. ALVES, E. CERESINI, P. C. Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
description |
White thread blight is one of the most common diseases affecting several tree species that grow in warm and humid regions. The typical symptoms of this disease include blighted leaves hanging by a white thread of fungal hyphae. Leaf samples exhibiting white thread blight symptoms were collected from neem (Azadirachta indica A. Juss) and Brazilian cherry pitanga (Eugenia uniflora L.) plants in Northeastern Brazil, and from Indian green-tea (Camellia sinensis (L.) O. Kuntze), coffee (Coffea arabica L.), and persimmon (Diospyros kaki L.) in agricultural areas neighboring the Atlantic forest in Southeastern Brazil. Fungal isolates were obtained indirectly from leaf fragments or directly by transferring mycelia and sclerotia to culture medium. Bright field and scanning electron microscopy images revealed the association of Rhizoctonia-like hyphae and basidiospores with the infected leaves. In pathogenicity tests, Rhizoctonia-like fungal isolates induced leaf necrosis on their hosts, and the pathogens were re-isolated from inoculated plants. Phylogenetic analyses based on sequences of the ITS rRNA region indicated the occurrence of Ceratobasidium lineages distinct from previously reported Ceratobasidium species. Our study leads to the description of two new species of Ceratobasidium: the fungal isolates from A. indica, C. sinensis, and E. uniflora were classified as Ceratobasidium niltonsouzanum sp. nov., and those obtained from C. arabica and D. kaki as Ceratobasidium chavesanum sp. nov. |
author2 |
Maruzanete P. de Melo; Kedma S. Matos; Silvino I. Moreira; Fabiano F. Silva; Grace H. Conceição; Kátia L. Nechet; Bernardo A. Halfeld-Vieira; José E. A. Beserra Júnior; Jose Aires Ventura, Incaper; Helcio Costa, Incaper; Edson L. Furtado; Eduardo Alves; Paulo C. Ceresini. |
author_facet |
Maruzanete P. de Melo; Kedma S. Matos; Silvino I. Moreira; Fabiano F. Silva; Grace H. Conceição; Kátia L. Nechet; Bernardo A. Halfeld-Vieira; José E. A. Beserra Júnior; Jose Aires Ventura, Incaper; Helcio Costa, Incaper; Edson L. Furtado; Eduardo Alves; Paulo C. Ceresini. MELO, M. P. de MATOS, K. S. MOREIRA, S. I. SILVA, F. F. CONCEIÇÃO, G. H. NECHET, K. HALFELD-VIEIRA, B. A. BESERRA JUNIOR, J. E. A. VENTURA, J. A. COSTA, H. FURTADO, E. L. ALVES, E. CERESINI, P. C. |
format |
Artigo de periódico (quando a biblioteca tiver o título do periódico) |
topic_facet |
Binucleate Rhizoctonia Phylogenetic analysis |
author |
MELO, M. P. de MATOS, K. S. MOREIRA, S. I. SILVA, F. F. CONCEIÇÃO, G. H. NECHET, K. HALFELD-VIEIRA, B. A. BESERRA JUNIOR, J. E. A. VENTURA, J. A. COSTA, H. FURTADO, E. L. ALVES, E. CERESINI, P. C. |
author_sort |
MELO, M. P. de |
title |
Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
title_short |
Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
title_full |
Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
title_fullStr |
Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
title_full_unstemmed |
Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. |
title_sort |
two new ceratobasidium species causing white thread blight on tropical plants in brazil. |
publisher |
Trop. plant pathoL, 2018. |
publishDate |
2018 |
url |
http://biblioteca.incaper.es.gov.br/digital/handle/123456789/3189 https://doi.org/10.1007/s40858-018-0237-x |
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