Levantamento de Fungos em Plantas Nativas da Caatinga (Survey of Fungi in Native Plants of Caatinga)
DOI:
https://doi.org/10.26848/rbgf.v7.3.p458-465Abstract
A necessidade de recuperação de áreas degradadas da Caatinga, devido a exploração extrativista das espécies nativas, tem exigido pesquisas sobre a produção e qualidade de mudas florestais. Deste modo, o objetivo deste artigo foi realizar um levantamento em viveiros de mudas e mata nativa da Caatinga, diagnosticando e identificando os principais fungos patogênicos ou não, associados às mudas e plantas adultas de espécies nativas da Caatinga. O levantamento foi realizado através de amostras de folhas de aroeira-do-sertão (Myracrodruon urundeuva), baraúna (Schinopsis brasiliensis), catingueira-verdadeira (Poicianella pyramidalis), caraibeira (Tabebuia aurea), pau-ferro (Caesalpinia leiostachya), jatobá (Hymenaea courbaril) e ipê-roxo (Tabebuia impetiginosa) produzidas em viveiros das cidades de Juazeiro-BA e Petrolina-PE. Também foram coletadas amostras de folhas em mata nativa na zona rural de Petrolina-PE. Os gêneros detectados pela análise direto foram Alternaria sp., Oidium sp., Ovulariopsis sp, Uromyces sp. e pela análise indireta foram detectados o gênero Alternaria sp. e Colletotrichum sp. Foi observada a presença dos gêneros de fungos Oidium sp. em aroeira e baraúna, Ovulariopsis sp em ipê-roxo, Alternaria sp. em aroeira-do-sertão e pau-ferro, Colletotrichum em aroeira e Uromyces sp. em jatobá.
A B S T R A C T
The need for restoration of degraded areas of Caatinga, due to years of exploitation of the native species, has required research on the production and quality of forest seedlings. However, a major constraint for the production of seedlings are plant diseases that can cause significant losses. Thus, the aim of this study was to perform a survey in tree nurseries and in Caatinga native vegetation, diagnosing and identifying main, pathogenic or not, fungi associated with seedlings and trees of native species of the Caatinga. The survey was carried out with samples of leaves of aroeira-do-sertão (Myracrodruon urundeuva), baraúna (Schinopsis brasiliensis), catingueira-verdadeira (Poicianella pyramidalis), caraibeira (Tabebuia aurea), pau-ferro (Caesalpinia leiostachya), jatobá (Hymenaea courbaril) and ipê-roxo (Tabebuia impetiginosa) grown in nurseries of the cities of Juazeiro-BA and Petrolina-PE. Leaf samples were also collected from native vegetation in the rural area of Petrolina-PE. The genera detected by direct analysis were Alternaria sp., Oidium sp., Ovulariopsis sp and Uromyces sp., and by indirect analysis were Alternaria sp. and Colletotrichum sp. The presence of the genera Oidium sp was observed in aroeira-do-sertão and baraúna, Ovulariopsis sp in ipê-roxo, Alternaria sp. in aroeira-do-sertão and pau-ferro, Colletotrichum in aroeira-do-sertão and Uromyces sp. in jatobá.
Keywords: Caatinga, seedlings, disease, reforestation
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Copyright (c) 2014 Gilmara Moreira Oliveira, Francislene Angelotti, Maria Herbênia Lima Cruz Santos, Giselle Souza Pinheiro, Danielle Carolina Campos Costa, Bárbara França Dantas
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