Occurrence of Stolbur Phytoplasma Disease in Spreading Type Petunia hybrida Cultivars in Korea

The Plant Pathology Journal

In Myeong Choi¹  Seung Kook Choi¹  Kyeong San Choi¹  Jae Ho Joa¹  Bong Nam Chung¹  Myeong Il Jeong¹ 

[1] National Institute of Horticultural and Herbal Science, RDA, Suwon 440-706, Korea;

关键词: Petunia hybrida;    stolbur phytoplasma;   

DOI  :  10.5423/PPJ.OA.05.2013.0048

来源: DOAJ

【 摘 要 】

In January 2012, spreading type petunia cv. Wave Pink plants showing an abnormal growth habit of sprouting unusual multiple plantlets from the lateral buds were collected from a greenhouse in Gwacheon, Gyeonggi Province, Korea. The presence of phytoplasma was investigated using PCR with the primer pairs P1/P6, and R16F1/R1 for nested-PCR. In the nested PCR, 1,096 bp PCR products were obtained, and through sequencing 12 Pet-Stol isolates were identified. Comparison of the nucleotide sequences of 16S rRNA gene of the 12 Pet-Stol isolates with other phytoplasmas belonging to aster yellows or Stolbur showed that Pet-Stol isolates were members of Stolbur. The presence of phytoplasma in petunia was also confirmed by microscopic observation of the pathogens. In this study, Stolbur phytoplasma was identified from spreading type petunia cultivars by sequence analysis of 16S rRNA gene of phytoplasma and microscopic observation of phytoplasma bodies. This is the first report of Stolbur phytoplasma in commercial Petunia hybrida cultivars.

【 授权许可】

Unknown