First report of 'Candidatus Phytoplasma trifolii' associated with leaf reddening and upright growth in pears (Pyrus communis L.) | Mustafa Usta, Abdullah Güller, Hikmet Murat Sipahioğlu Agricultural Journals

Phytoplasmas are dangerous bacteria severely infecting agricultural production worldwide. In the present study, identification of phytoplasmas tomato plants showing symptoms such as small leaves, flower abnormalities, stunting, witches' broom, and reddening was performed. Five plants, two symptomatic three asymptomatic, were tested to verify phytoplasma infection. Total DNA isolated from 5 leaf...

Althaea officinalis (marsh mallow, Malvaceae) is a medicinal plant, the roots, leaves and flowers of which are usually used in traditional medicines many countries, including Iran (Kianitalaei et al., 2019). During survey April 2022, phytoplasma-type disease, tentatively named A. yellows (AOY), was observed patches plants naturally growing Golestan, near Shiraz (Fars province, Iran). In 2-ha su...

Tancik J., Seljak G. (2017): Occurrence of Scaphoideus titanus Ball and some other Auchenorrhyncha in the vineyards of western Slovakia. Plant Protect. Sci., 53: 95–100. A study of Auchenorrhyncha was carried out in 2014 and 2015 in 7 vineyard plots with different varieties and pest management strategies in the Nitra wine region and Lesser Carpathian wine region in western Slovakia. The aim of ...

A real-time PCR assay conjugated with the fluorescent SYBR Green I dye has been developed for rapid, sensitive and quantitative detection of ‘Candidatus Phytoplasma prunorum’ in its natural hosts, in stone fruits such as apricot plants and in the insect vector Cacopsylla pruni. The selected primers amplified specifically a fragment 153 bp long from the rplV (rpl22) gene of ‘Ca. P. prunorum’ and...

A strong community of scientists has been established within the last 40 years in phytoplasma research. Hereby, knowledge of these phytopathogenic bacteria increased dramatically in all fields catalysed by the introduction of molecular techniques and bioinformatics. The determination and analysis of genome data provided insights in the genome organization, content, evolution but also an excelle...

Cacopsylla melanoneura (Foerster) is considered one of the most important vectors of ‘Candidatus Phytoplasma mali’, the phytoplasma associated with apple proliferation disease. In the last years several studies concerning the biology, the infectivity and the transmission activity of this psyllid highlighted the crucial role of the overwintered adults in the epidemiology of the disease. However ...

The European stone fruit yellows (ESFY) caused by ‘Candidatus Phytoplasma prunorum’ (‘Ca. P. prunorum’), is a devastating, quarantine phytoplasma disease. This agent leads to serious damage in apricot and Japanese plum orchards, including decline of infected trees. The consequences are considerable economic losses in production. European plum and cherry are less susceptible to ESFY, although th...

ABSTRACT Marginal chlorosis has affected strawberry production in France for about 15 years. A phloem-restricted uncultured bacterium, "Candidatus Phlomobacter fragariae," is associated with the disease. A large-scale survey for marginal chlorosis in French strawberry production fields and nurseries by polymerase chain reaction amplification of "Ca. P. fragariae" 16S rDNA revealed that symptoms...