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FIRST REPORT OF Phytophthora nicotianae CAUSING ROOT ROT OF SOURSOP IN NORTHEASTERN BRAZIL Rev. Bras. Frutic.
COSTA,JAQUELINE FIGUEREDO DE OLIVEIRA; ASSUNÇÃO,IRAÍLDES PEREIRA; LIMA,GAUS SILVESTRE DE ANDRADE; MUNIZ,MARIA DE FÁTIMA SILVA; LUZ,EDNA DORA MARTINS NEWMAN.
ABSTRACT In 2013, soursop trees showing symptoms of root rot were observed in a field in Maceió, state of Alagoas, Brazil. It was isolated Phytophthora sp. which pathogenicity was confirmed in the host seedlings. Morphological and physiological characteristics in carrot-agar modified medium were consistent with Phytophthora nicotianae description. The PCR sequences products obtained with ITS1/ITS4 primers were compared to sequences of ribosomal DNA of Phytophthora species from the GenBank database observing high identity with other P. nicotianae isolates. A phylogenetic tree was performed to compare the isolate with other sequences of P. nicotianae, which clustering has been verified with 99% of bootstrap, confirming the morphophysiological studies. This...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Annona muricata; Phytophthora wilt; Oomycete; Etiology.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300405
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