Informações sobre vestígios biológicos extraídos de bioaerosóis usando análise NGS
DOI:
https://doi.org/10.14393/BJ-v37n0a2021-53678Palavras-chave:
Biological trace information, Bioaerosol, Next Generation SequencingResumo
Os bioaerosóis são partículas atmosféricas com traços biológicos, como vírus, bactérias, fungos e material vegetal, como pólen e detritos vegetais. Neste estudo, analisamos as informações biológicas em bioaerossóis usando o sequenciamento de última geração do DNA traço. As amostras foram coletadas usando um amostrador Andersen e separadas em dois grupos de acordo com o tamanho do material particulado (PM): pequeno (PM2,5) e grande (PM10). A amplificação e o sequenciamento do gene 16S rDNA bacteriano, região espaçador 1 transcrita interna procariótica (ITS1) e sequência de DNA de um gene de cloroplasto vegetal (rbcL) foram realizados usando vários conjuntos de iniciadores específicos visando sequências animais e vegetais.
Muita informação bacteriana foi detectada a partir dos bioaerosóis. As bactérias mais abundantes em várias amostras foram das Actinobacteria (classe), Alphaproteobacteria, Bacilli e Clostridia. Para a detecção de animais usando espaçador interno transcrito 1, apenas fungos não cultivados foram detectados em mais da metade dos acertos, com alto número de Cladosporium sp. nas amostras. Para a identificação da planta, as informações ITS1 correspondiam apenas às espécies de fungos. No entanto, o direcionamento da região rbcL revelou diversas informações sobre plantas, como Medicago papillosa. Em conclusão, traços de bactérias, fungos e plantas podem ser detectados nos bioaerossóis, mas não nos animais que usam nossos primers.
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Copyright (c) 2021 Panyapon Pumkaeo, Wenhao Lu, Youki Endou, Tomofumi Mizuno, Junko Takahashi, Hitoshi Iwahashi
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