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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Florestas. |
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Data corrente: |
25/10/2025 |
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Data da última atualização: |
15/01/2026 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, I. B. da; MACHADO, J. F.; SACHET, M. T. G.; SILVA, G. F. da; SOUSA, T. F.; SILVA, I. J. S. da; CHAGAS, E. A.; COSTA, T. E. da; HOLANDA, I. S. A.; MATOS, K. da S. |
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Afiliação: |
ISMAELE BRECKENFELD DA COSTA, UNIVERSIDADE FEDERAL DE RORAIMA; JULIANA FARIAS MACHADO, UNIVERSIDADE FEDERAL DE RORAIMA; MARIELI TERESINHA GUERREZI SACHET, UNIVERSIDADE FEDERAL DE RORAIMA; GILVAN FERREIRA DA SILVA, CPAA; THIAGO FERNANDES SOUSA, UNIVERSIDADE FEDERAL DO AMAZONAS; INGRIDE JARLINE SANTOS DA SILVA, UNIVERSIDADE FEDERAL DO AMAZONAS; EDVAN ALVES CHAGAS, CNPF; TALISON EUGENIO DA COSTA, UNIVERSIDADE FEDERAL RURAL DO SEMI-ÁRIDO; IONÁ SANTOS ARAÚJO HOLANDA, UNIVERSIDADE FEDERAL RURAL DO SEMI-ÁRIDO; KEDMA DA SILVA MATOS, UNIVERSIDADE FEDERAL DE RORAIMA. |
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Título: |
Neopestalotiopsis formicidarum causing leaf spots on Myciaria dubia, Eugenia stipitata and Psidium acutangulum in Brazil. |
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Ano de publicação: |
2026 |
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Fonte/Imprenta: |
Crop Protection, v. 199, art. 107432, Jan. 2026. |
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DOI: |
10.1016/j.cropro.2025.107432 |
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Idioma: |
Inglês |
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Conteúdo: |
Camu-camu (Myrciaria dubia), araçá-boi (Eugenia stipitata), and araçá-pera (Psidium acutangulum) are Myrtaceae species native to the Amazon region. Their fruits have multiple industrial applications, particularly in the food, cosmetic, and pharmaceutical sectors. Since 2020, leaf spot symptoms have been frequently observed on these fruit trees in both native and cultivated areas in northern Brazil. This study aimed to identify the etiological agent associated with leaf spots on camu-camu, araçá-boi and araçá-pera in the state of Roraima through morphological characterization and multilocus phylogenetic analysis. Twelve isolates of the genus Neopestalotiopsis were obtained from symptomatic leaf tissues. Based on morphological characters and phylogenetic analyses of the combined internal transcribed spacer (ITS) region, the transcription elongation factor 1-α (tef1) and partial sequences of the β-tubulin gene (tub2), the isolates were identified as Neopestalotiopsis formicidarum (syn N. formicarum). Three isolates were used in pathogenicity assay and inoculated into seedlings of M. dubia, E. stipitata, and P. acutangulum, causing small brown to black leaf spots that expanded and coalesced into larger necrotic lesions. This is the first report of N. formicidarum causing leaf spot on camu-camu, araçá-boi and araçá-pera in Brazil. Our study should be helpful for better understanding of the species N. formicidarum that represents a potential threat to the cultivation of these fruit trees, and will be useful for effective strategies for prevention and control this disease. MenosCamu-camu (Myrciaria dubia), araçá-boi (Eugenia stipitata), and araçá-pera (Psidium acutangulum) are Myrtaceae species native to the Amazon region. Their fruits have multiple industrial applications, particularly in the food, cosmetic, and pharmaceutical sectors. Since 2020, leaf spot symptoms have been frequently observed on these fruit trees in both native and cultivated areas in northern Brazil. This study aimed to identify the etiological agent associated with leaf spots on camu-camu, araçá-boi and araçá-pera in the state of Roraima through morphological characterization and multilocus phylogenetic analysis. Twelve isolates of the genus Neopestalotiopsis were obtained from symptomatic leaf tissues. Based on morphological characters and phylogenetic analyses of the combined internal transcribed spacer (ITS) region, the transcription elongation factor 1-α (tef1) and partial sequences of the β-tubulin gene (tub2), the isolates were identified as Neopestalotiopsis formicidarum (syn N. formicarum). Three isolates were used in pathogenicity assay and inoculated into seedlings of M. dubia, E. stipitata, and P. acutangulum, causing small brown to black leaf spots that expanded and coalesced into larger necrotic lesions. This is the first report of N. formicidarum causing leaf spot on camu-camu, araçá-boi and araçá-pera in Brazil. Our study should be helpful for better understanding of the species N. formicidarum that represents a potential threat to the cultivation of these frui... Mostrar Tudo |
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Palavras-Chave: |
Araçá-boi; Araçá-pera; Camu-camu; Leaf disease. |
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Thesagro: |
Eugenia Stipitata; Myrciaria Dubia; Psidium Acutangulum. |
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Thesaurus Nal: |
Neopestalotiopsis. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02610naa a2200337 a 4500
001 2180622
005 2026-01-15
008 2026 bl uuuu u00u1 u #d
024 7 $a10.1016/j.cropro.2025.107432$2DOI
100 1 $aCOSTA, I. B. da
245 $aNeopestalotiopsis formicidarum causing leaf spots on Myciaria dubia, Eugenia stipitata and Psidium acutangulum in Brazil.$h[electronic resource]
260 $c2026
520 $aCamu-camu (Myrciaria dubia), araçá-boi (Eugenia stipitata), and araçá-pera (Psidium acutangulum) are Myrtaceae species native to the Amazon region. Their fruits have multiple industrial applications, particularly in the food, cosmetic, and pharmaceutical sectors. Since 2020, leaf spot symptoms have been frequently observed on these fruit trees in both native and cultivated areas in northern Brazil. This study aimed to identify the etiological agent associated with leaf spots on camu-camu, araçá-boi and araçá-pera in the state of Roraima through morphological characterization and multilocus phylogenetic analysis. Twelve isolates of the genus Neopestalotiopsis were obtained from symptomatic leaf tissues. Based on morphological characters and phylogenetic analyses of the combined internal transcribed spacer (ITS) region, the transcription elongation factor 1-α (tef1) and partial sequences of the β-tubulin gene (tub2), the isolates were identified as Neopestalotiopsis formicidarum (syn N. formicarum). Three isolates were used in pathogenicity assay and inoculated into seedlings of M. dubia, E. stipitata, and P. acutangulum, causing small brown to black leaf spots that expanded and coalesced into larger necrotic lesions. This is the first report of N. formicidarum causing leaf spot on camu-camu, araçá-boi and araçá-pera in Brazil. Our study should be helpful for better understanding of the species N. formicidarum that represents a potential threat to the cultivation of these fruit trees, and will be useful for effective strategies for prevention and control this disease.
650 $aNeopestalotiopsis
650 $aEugenia Stipitata
650 $aMyrciaria Dubia
650 $aPsidium Acutangulum
653 $aAraçá-boi
653 $aAraçá-pera
653 $aCamu-camu
653 $aLeaf disease
700 1 $aMACHADO, J. F.
700 1 $aSACHET, M. T. G.
700 1 $aSILVA, G. F. da
700 1 $aSOUSA, T. F.
700 1 $aSILVA, I. J. S. da
700 1 $aCHAGAS, E. A.
700 1 $aCOSTA, T. E. da
700 1 $aHOLANDA, I. S. A.
700 1 $aMATOS, K. da S.
773 $tCrop Protection$gv. 199, art. 107432, Jan. 2026.
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Embrapa Amazônia Ocidental (CPAA) |
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| 1. |  | PROSDOCIMI, P; BITTENCOURT, D.; SILVA, F. R. da; KIRST, M.; MOTA, P. C.; RECH, E. L. Spinning gland transcriptomics from two main Clades of Spiders (Order: Araneae) - insights on their molecular, anatomical and behavioral evolution. Plos One, San Francisco, v. 6, n. 6, p. 1-15, June 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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