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Article
A ‘Candidatus Phytoplasma omanense’-related strain detected in yellowing grapevine, stunted bindweed and Cixiidae planthoppers in Lebanon
Grapevine yellows (GY) affecting Lebanese vineyards are reported to be associated with ‘Candidatus Phytoplasma solani’, the bois noir (BN) etiological agent. However, during a field survey in June 2014 for BN in ...
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Article
Minor cultures as hosts for vectors of extensive crop diseases: Does Salvia sclarea act as a pathogen and vector reservoir for lavender decline?
Stolbur is a phytoplasma disease affecting crops worldwide. The planthopper Hyalesthes obsoletus is the main natural vector of ‘Candidatus Phytoplasma solani’ responsible of stolbur. In France, lavender (Lavandul...
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Article
Use the insiders: could insect facultative symbionts control vector-borne plant diseases?
Insect vector-borne plant diseases, particularly those whose causative agents are viral, or phloem- and xylem-restricted bacteria, greatly impact crop losses. Since plants are immobile, the epidemiology of vec...
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Protocol
Tuf and secY PCR Amplification and Genoty** of Phytoplasmas
Tuf and secY genoty** techniques have been developed to distinguish phytoplasma strains. Tuf polymerase chain reaction sequence analyses are available for phytoplasma taxonomic groups 16SrI, 16Sr...
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Article
‘Candidatus Phlomobacter fragariae’ and the proteobacterium associated with the low sugar content syndrome of sugar beet are related to bacteria of the arsenophonus clade detected in hemipteran insects
The phylogeny of ‘Candidatus Phlomobacter fragariae’(Ca. P. fragariae), the agent of the strawberry marginal chlorosis (SMC), and the proteobacterium associated with the low sugar content syndrome of sugar beet (...
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Article
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, hypertrop...