First report of a ‘Candidatus phytoplasma pyri’ strain in Argentina
详细信息 查看全文
- 作者：Franco Daniel Fernández ; Diana Marini ; Roberto Farrando…
- 关键词：Yellowing ; Phytoplasma ; Peach ; 16SrX ; group ; RFLP
- 刊名：Australasian Plant Disease Notes
- 出版年：2017
- 出版时间：June 2017
- 年：2017
- 卷：12
- 期：1
- 全文大小：1168KB
- 刊物主题：Plant Pathology; Plant Sciences; Agriculture; Entomology; Ecology;
- 出版者：Springer Netherlands
- ISSN：1833-928X
- 卷排序：12
文摘
During the 2015 growing season, peach plants (Prunus persica) showing chlorotic, curling leaves and midrib thickening were detected in production fields in Mendoza province (Midwest region, Argentina). These symptoms resemble those described for Peach Yellow Leaf Roll disease, a ‘Candidatus Phytoplasma pyri’ related strain. By PCR of the 16S rDNA gene, a phytoplasma was detected in symptomatic samples. The RFLP profile, sequence identity and phylogenetic analyses showed that the Peach Yellows phytoplasma belongs to group 16SrX-C and is identical to those described as ‘Candidatus Phytoplasma pyri’. This is the first report of a phytoplasma from 16Sr group X infecting peach trees in Argentina and in South America.