Latent infection of asymptomatic Hawaiian sugarcane cultivars with 16SrI and 16SrXI phytoplasmas

Detection and differentiation of the coconut lethal yellowing phytoplasma in coconut‐growing villages of Grand‐Lahou, Côte d'Ivoire

“…Symptomless infection in palms infected with LY (Maust et al, ) and CSPWD (Nipah et al, ) phytoplasmas have also been reported. Similar reports have been made in other phytoplasma‐infected monocot species like sugarcane (Soufi & Komor, ). Those infected asymptomatic trees in Badadon suggest that natural asymptomatic infection from the CILY phytoplasma can occur in Grand‐Lahou.…”

Mixed Infection of Sugarcane Yellow Leaf Virus and Grassy Shoot Phytoplasma in Yellow Leaf Affected Indian Sugarcane Cultivars

“…Although our results were contradictory with SCYP (16Sr-I aster yellow group) association in YL plants of sub-tropical cultivars, only SCGS phytoplasma association was confirmed from both tropical and sub-tropical cultivars in India. Such type of both group of phytoplasma associations (16SrI and 16SrXI) were earlier reported from YL plants in Hawaii ( Soufi and Komor, 2014 ) and, in Egypt, SCYLV as well as 16SrI and 16SrXI groups of phytoplasma were reported on cvs H73-6110, G03-47, G84-47 ( ElSayed et al, 2016 ). All the sugarcane viruses Sugarcane Mosaic Virus (SCMV), Sugarcane Streak Mosaic Virus (SCSMV), and SCYLV were diagnosed even in asymptomatic plants in RT-PCR assays ( Viswanathan et al, 2008 , 2009 ; Viswanathan, 2016 ) due to latent stage or low titre of viruses, the same can be applicable to SCGS phytoplasma.…”

“…Recently, ‘ Ca . P. asteris’ subgroup (16Sr I-B) in Brazil and Egypt ( Silva et al, 2009 ; ElSayed and Boulila, 2014 ); white leaf phytoplasma in Thailand ( Soufi et al, 2013 ); latent infections of 16SrI (aster yellows) and 16SrXI (Rice yellow dwarf) groups in asymptomatic Hawaiian sugarcane cultivars ( Soufi and Komor, 2014 ) and Egyptian sugarcane cultivars based on sequencing and RFLP analyses ( ElSayed et al, 2016 ) were reported from YL affected plants. In India, 16SrXII (Stolbur group) ( Gaur et al, 2008 ) and 16SrI-B (Aster Yellow group) ( Kumar et al, 2015 ) were reported from sub-tropical cvs CoLk 8102, CoLk 94184, and CoSe 92423.…”

Detection and Characterization of Phytoplasma and Sugarcane Yellow Leaf Virus Associated with Leaf Yellowing of Sugarcane

“…). The Hawaiian sugarcane cultivars H73‐6110 and H87‐4094 were used as a positive control, which were previously infected by 16SrI phytoplasma (aster yellows) (Soufi and Komor ). In each of the four different PCR protocols (nPCR1‐4), three sugarcane plants appeared phytoplasma free (Ph‐8013, G03‐47 and undefined Cane 3) (Table ).…”