FIRST REPORT OF Phytophthora nicotianae CAUSING ROOT ROT OF SOURSOP IN NORTHEASTERN BRAZIL

被引：0

作者：

De Oliveira Costa, Jaqueline Figueredo ^{[1
]}

Assuncao, Iraildes Pereira ^{[1
]}

De Andrade Lima, Gaus Silvestre ^{[1
]}

Silva Muniz, Maria De Fatima ^{[1
]}

Martins Newman Luz, Edna Dora ^{[2
]}

机构：

[1] Univ Fed Alagoas, Ctr Agr Sci, BR 104 North,Km 85, BR-57100000 Rio Largo Alagoas, Brazil

[2] CEPLAC, Cacao Res Ctr, BR-45600970 Ilheus, Brazil

来源：

REVISTA BRASILEIRA DE FRUTICULTURA | 2016年 / 38卷 / 03期

关键词：

Annona muricata; Phytophthora wilt; Oomycete; etiology;

D O I：

10.1590/0100-29452016

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

In 2013, soursop trees showing symptoms of root rot were observed in a field in Maceio, 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 is the first report of this pathogen on annonaceous plants in the Northeastern Brazil.

引用

页数：5

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