2009•Chih Wu Sheng Li Hsueh T'ung HsunRequires access

Effects of Auxin Analogs on Phytoplasma in Infected Sour Jujube Shoots Grown in vitro

Qing Feng Sun

Abstract

Sour jujube witches' broom is resulted from imbalance of endogeneous hormones,which is caused by phytoplasma.In order to investigate the effects of auxin analogs on witches' broom phytoplasma,the infected shoots of sour jujube(Zizyphus spinosus Hu.) were used as materials.The infected shoots were treated with exogenous auxin analogs NAA,IBA and IAA,respectively.The results showed that NAA and IBA didn't affect witches' broom,and IAA promoted shoot clumps production.After the treatments of NAA,IBA and IAA for 9 months,PCR analysis of phytoplasma presence showed the pathogen of witches' broom phytoplasma was not been eliminated in tested shoots,remission of witches' broom symptom was not observed in all treatments.

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Key concepts: Broom, Phytoplasma, Shoot, Auxin, Biology, Horticulture, Botany, Polymerase chain reaction