Incidence and molecular characterization of a 16SrI-B phytoplasma strain associated with Vitis vinifera leaf yellowing and reddening in the west of Iran

History and Current Status of Phytoplasma Diseases in the Middle East

“…P. fraxini’), and 16SrIX-C (‘ Ca . P. phoenicium’), have been detected in symptomatic grapevines in the center and south of Iran [ 98 , 104 , 105 ].…”

Detection and molecular characterization of phytoplasmas based on 16s rDNA gene region by phylogenetic and in silico RFLP analysis of local grapevine cultivars in Şanlıurfa and Adıyaman

“…On the other hand, Aster yellows phytoplasmas (16SrI group) are one of the largest group and are of genetic diversity when compared to other phytoplasma groups (Lee et al 2004). Recently, these phytoplasma species had already been reported in Iran and Turkey (Ertunc et al, 2015;Babaei et al, 2019). This study thus provided new information for the epidemiological distribution of 16SrXII-A and 16SrI-B subgroup phytoplasmas in Turkey.…”

“…Although several 'Candidatus phytoplasma' species belonging to different taxonomic groups infecting grapevine plants have been identified worldwide, only a few 16Sr-group including 16SrI, 16rV, 16SrIX and 16SrXII were identified and reported in Turkey (Canik et al, 2011;Ertunc et al, 2015). 16SrI, 16SrVII-A and 16SrII-B group phytoplasmas were also reported in grapevine exhibiting leaf scorch, leaf yellowing, redding and decline symptoms in Iran, recently (Zamharir et al, 2017;Babaei et al, 2019). Irregular leaf yellowing symptoms for white varieties and reddening symptoms for red varieties, chlorosis, necrosis and leaves curling backward were also observed in local vineyards of Şanlıurfa and Adıyaman provinces in Turkey.…”

Detection and molecular identification of a 16SrI group phytoplasma associated with sisal purple leafroll disease

“…The symptoms of SPLD, including purple margins and yellowing and rolling of the leaves, are simi-lar to several other plant diseases caused by viruses (Trenado et al 2011;Li et al 2012;Chen et al 2018;Byarugaba et al 2020), phytoplasmas (Holguín-Peña et al 2007;Sabaté et al 2014;Babaei et al 2019;Gamarra et al 2022), or nutrient deficiency (Yoneda et al 1997;Ariraman et al 2020). In 1964, a disease called "purple leaf tip roll" with similar symptoms to SPLD was reported in sisal in Tanzania; it was suggested to be caused by manganese deficiency (Muller 1964).…”