TY  - JOUR
AU  - Jovic, Jelena
AU  - Marinković, Slavica
AU  - Jakovljević, Miljana
AU  - Krstić, Oliver
AU  - Cvrković, Tatjana
AU  - Mitrović, Milana
PY  - 2021
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/693
AB  - Field bindweed (Convolvulus arvensis) is one of the major natural plant hosts and reservoirs
of ‘Candidatus Phytoplasma solani’ (‘Ca. P. solani’), the causal agent of plant diseases in diverse
agricultural crops, including Bois noir (BN) disease of grapevine. Phylogenetically, the most closely
related phytoplasma to ‘Ca. P. solani’, the ‘Ca. P. convolvuli’, induces disease in field bindweed that
is known by its symptoms as bindweed yellows (BY). The occurrence, coinfection and symptoms
association of the two phytoplasmas in shared host plants were the subject of this study. Specific
primers for the amplification of the elongation factor Tu gene (tuf ) were developed for the identification
of ‘Ca. P. convolvuli’ (by conventional nested PCR), as well as primers for simultaneous
detection of ‘Ca. P. solani’ and ‘Ca. P. convolvuli’ by duplex SYBR Green real-time PCR. Among
symptomatic bindweed plants, 25 and 41% were infected with a single phytoplasma species, ‘Ca.
P. solani’ and ‘Ca. P. convolvuli’, respectively, while 34% were infected with both phytoplasmas.
None of the non-symptomatic control plants carried phytoplasma, while non-symptomatic plants
from our previous epidemiological studies in BN-affected vineyards were confirmed to be infected
solely with ‘Ca. P. solani’. Stamp gene typing revealed Rqg50 and Rqg31 ‘Ca. P. solani’ genotypes in
plants coinfected with ‘Ca. P. convolvuli’, while three diverse genotypes (Rqg50, GGY and Rpm35)
were identified in a single locality with symptomatic bindweeds infected solely with ‘Ca. P. solani’.
Variations in symptoms and their association with each of the phytoplasmas are described and
documented. The symptom of bushy appearance could be single out as specific for ‘Ca. P. convolvuli’
infection, while occurrence of ‘Ca. P. solani’ could not be unequivocally associated with specific
alterations in infected bindweeds. The results are discussed in the context of the epidemiological
and ecological complexity of ‘Ca. P. solani’-induced diseases and the relationship between the two
phytoplasma relatives in shared host plant.
PB  - MDPI Basel
T2  - Pathogens
T1  - Symptomatology, (Co)occurrence and Differential Diagnostic PCR Identification of ‘Ca. Phytoplasma solani’ and ‘Ca. Phytoplasma convolvuli’ in Field Bindweed
IS  - 2
SP  - 160
VL  - 10
DO  - 10.3390/pathogens10020160
ER  - 

@article{
author = "Jovic, Jelena and Marinković, Slavica and Jakovljević, Miljana and Krstić, Oliver and Cvrković, Tatjana and Mitrović, Milana",
year = "2021",
abstract = "Field bindweed (Convolvulus arvensis) is one of the major natural plant hosts and reservoirs
of ‘Candidatus Phytoplasma solani’ (‘Ca. P. solani’), the causal agent of plant diseases in diverse
agricultural crops, including Bois noir (BN) disease of grapevine. Phylogenetically, the most closely
related phytoplasma to ‘Ca. P. solani’, the ‘Ca. P. convolvuli’, induces disease in field bindweed that
is known by its symptoms as bindweed yellows (BY). The occurrence, coinfection and symptoms
association of the two phytoplasmas in shared host plants were the subject of this study. Specific
primers for the amplification of the elongation factor Tu gene (tuf ) were developed for the identification
of ‘Ca. P. convolvuli’ (by conventional nested PCR), as well as primers for simultaneous
detection of ‘Ca. P. solani’ and ‘Ca. P. convolvuli’ by duplex SYBR Green real-time PCR. Among
symptomatic bindweed plants, 25 and 41% were infected with a single phytoplasma species, ‘Ca.
P. solani’ and ‘Ca. P. convolvuli’, respectively, while 34% were infected with both phytoplasmas.
None of the non-symptomatic control plants carried phytoplasma, while non-symptomatic plants
from our previous epidemiological studies in BN-affected vineyards were confirmed to be infected
solely with ‘Ca. P. solani’. Stamp gene typing revealed Rqg50 and Rqg31 ‘Ca. P. solani’ genotypes in
plants coinfected with ‘Ca. P. convolvuli’, while three diverse genotypes (Rqg50, GGY and Rpm35)
were identified in a single locality with symptomatic bindweeds infected solely with ‘Ca. P. solani’.
Variations in symptoms and their association with each of the phytoplasmas are described and
documented. The symptom of bushy appearance could be single out as specific for ‘Ca. P. convolvuli’
infection, while occurrence of ‘Ca. P. solani’ could not be unequivocally associated with specific
alterations in infected bindweeds. The results are discussed in the context of the epidemiological
and ecological complexity of ‘Ca. P. solani’-induced diseases and the relationship between the two
phytoplasma relatives in shared host plant.",
publisher = "MDPI Basel",
journal = "Pathogens",
title = "Symptomatology, (Co)occurrence and Differential Diagnostic PCR Identification of ‘Ca. Phytoplasma solani’ and ‘Ca. Phytoplasma convolvuli’ in Field Bindweed",
number = "2",
pages = "160",
volume = "10",
doi = "10.3390/pathogens10020160"
}

Jovic, J., Marinković, S., Jakovljević, M., Krstić, O., Cvrković, T.,& Mitrović, M.. (2021). Symptomatology, (Co)occurrence and Differential Diagnostic PCR Identification of ‘Ca. Phytoplasma solani’ and ‘Ca. Phytoplasma convolvuli’ in Field Bindweed. in Pathogens
MDPI Basel., 10(2), 160.
https://doi.org/10.3390/pathogens10020160

Jovic J, Marinković S, Jakovljević M, Krstić O, Cvrković T, Mitrović M. Symptomatology, (Co)occurrence and Differential Diagnostic PCR Identification of ‘Ca. Phytoplasma solani’ and ‘Ca. Phytoplasma convolvuli’ in Field Bindweed. in Pathogens. 2021;10(2):160.
doi:10.3390/pathogens10020160 .

Jovic, Jelena, Marinković, Slavica, Jakovljević, Miljana, Krstić, Oliver, Cvrković, Tatjana, Mitrović, Milana, "Symptomatology, (Co)occurrence and Differential Diagnostic PCR Identification of ‘Ca. Phytoplasma solani’ and ‘Ca. Phytoplasma convolvuli’ in Field Bindweed" in Pathogens, 10, no. 2 (2021):160,
https://doi.org/10.3390/pathogens10020160 . .