Occurrence and distribution of 'Candidatus Phytoplasma trifolii' associated with diseases of solanaceous crops in Lebanon

A survey for phytoplasma diseases in tomato and pepper fields in Lebanon was conducted during 2003 and 2004. Tomato plants with stunting, yellowing or purplish leaves, proliferation of laterals buds, hypertrophic calyxes and virescent flowers were found in 25% of the tomato fields surveyed, where th...

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Bibliographic Details
Published in:European journal of plant pathology 2007-08, Vol.118 (4), p.411-416
Main Authors: Choueiri, Elia, Salar, Pascal, Jreijiri, Fouad, El Zammar, Souheir, Massaad, Randa, Abdul-Nour, Hani, Bové, Joseph-Marie, Danet, Jean-Luc, Foissac, Xavier
Format: Article
Language:English
Subjects:
Bacterial plant pathogens
Biological and medical sciences
Catharanthus roseus
Disease transmission
Fundamental and applied biological sciences. Psychology
Leafhopper
Leaves
Life Sciences
Lycopersicon esculentum
Pepper disease
Phloem-restricted bacteria
Phytopathology. Animal pests. Plant and forest protection
Phytoplasma
Plant diseases
Plants
Psyllid
Tomato disease
Tomatoes
Vegetal Biology
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Summary:A survey for phytoplasma diseases in tomato and pepper fields in Lebanon was conducted during 2003 and 2004. Tomato plants with stunting, yellowing or purplish leaves, proliferation of laterals buds, hypertrophic calyxes and virescent flowers were found in 25% of the tomato fields surveyed, where they represented 2-8% of the plants. Pepper plants displaying stunting and yellowing of leaves, were found in 27% of the fields and 1-4% of the plants were affected. Phytoplasmas infecting tomato and pepper had identical 16S-rDNA RFLP profiles and sequences. A phytoplasma isolate named PTL was transmitted by dodder from a diseased tomato plant to a periwinkle (Catharanthus roseus) plant in which it induced leaf yellowing, virescence and phyllody. 16S-rDNA phylogenetic analysis classified PTL as a strain of 'Candidatus Phytoplasma trifolii'.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-007-9142-8