Relação simbiótica de glomerosporos em gramíneas no Piauí
DOI:
https://doi.org/10.53660/341.prw814Palavras-chave:
Micorrízas arbusculares, Micro-organismo do solo, Fungo simbióticoResumo
O uso intensivo da terra tem efeitos negativos sobre a microbiota do solo e também sobre a produtividade agrícola. Os fungos micorrízicos arbusculares são micro-organismos do filo Glomeromycota, que atuam na absorção de água e nutrientes para as plantas. Através desta pesquisa, avaliamos a ecologia das espécies de FMAs na formação de gramíneas forrageiras utilizadas em terras cultiváveis do Piauí. Foram avaliadas dez áreas cultivadas diferentes tipos de gramíneas. Procedeu-se a extração dos glomerosporos presentes em amostras de solo, identificação das espécies de FMAs e colonização radicular. As espécies de FMA pertencentes ao Filo Glomeromycota, Classe Glomeromycetes recuperadas nos dez tratamentos foram organizados em 4 Ordens (Diversisporales, Gigasporales, Glomerales, Archaeosporales), 5 Famílias (Acaulosporaceae, Dentiscutataceae, Glomeraceae, Archeosporaceae, Ambisporaceae) e 5 gêneros: Acaulospora, Ambispora, Archaeospora, Dentiscutata, Glomus. Com os resultados sobre a identificação de micro-organismos edáficos específicos do Piaui, foi possível compreender a ecologia espécies indígenas de fungo micorrízicos arbusculares (FMAs) característicos do Estado piauiense.
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