Horticulture, Environment, and Biotechnology : HEB

Korean Society of Horticultural Science (한국원예학회)
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Phytoplasma Disease in Field Grown Chrysanthemum (Dendranthema grandiflorum)

Chung, Bong-Nam;Kim, Jeong-Soo;Jeong, Myeong-Il

  • Published : 2007.02.10
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Abstract

Phytoplasma was identified in field grown chrysanthemum (Dendranthema grandiflorum) cultivars. They showed withering symptom on part of plants earlier collecting, and leaves turned yellow and stunted. The presence of phytoplasma structures in chrysanthemum leaf tissues was confirmed by transmission electron microscopy. The 16S rRNA gene was amplified by polymerase chain reaction and cloned, and the nucleotide sequences were determined (GenBank accession No. DQ192514). The most closely related phytoplasma was aster yellows (AY) phytoplasma AY180956 reported from chrysanthemum in USA. It showed 98.8 and 94.8% homology with phyto-plasma isolates causing witches’ broom symptom (AY241706) and yellowing symptom (AY169308) isolated from chrysanthemum in Korea, respectively. Here we describe a phytoplasma disease occurring from chrysanthemum grown in open-field in summer.

Keywords

References

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