论文信息 - An isolate of 'Candidatus Phytoplasma australiense' group associated with Nivun Haamir dieback disease of papaya in Israel

An isolate of 'Candidatus Phytoplasma australiense' group associated with Nivun Haamir dieback disease of papaya in Israel

., 1998). Field observationsof NHDB suggested an airborne pathogen, but electronmicroscope studies failed to associate it with a phytoplasma(Franck & Bar-Joseph, 1992). Recently, 15 papaya plantssuspected of having NHDB were tested for phytoplasmaby nested PCR using P1/P7 and R16F2n/R16R2 primers.Phytoplasma products were conﬁrmed by direct sequenc-ing of the 16S/23S spacer region (SR), in which nine outof 15 samples with symptoms tested positive but all healthycontrols were negative. Grapevines (

S. Spiegel | M. Zeidan | M. Bar-joseph | M. Mawassi | A. Gera

[1] K. Walsh,et al. Phylogenetic positions of phytoplasmas associated with dieback, yellow crinkle and mosaic diseases of papaya, and their proposed inclusion in 'Candidatus Phytoplasma australiense' and a new taxon, 'Candidatus Phytoplasma australasia'. , 1998, International journal of systematic bacteriology.

[2] M. Bar-joseph,et al. Use of netting and whitewash spray to protect papaya plants against Nivun Haamir (NH)-dieback disease , 1992 .

[3] K. Walsh,et al. Detection of phytoplasmas in dieback, yellow crinkle, and mosaic diseases of papaya using polymerase chain reaction techniques. , 1996 .