European Journal of Plant Pathology (2020) 158, 733-744

Nazanin Ebadi, Gilda Najafipour, Mohammad Mehdi Faghihi, Kavous Ayazpour and Mohammad Salehi (2020)
Interaction between ' Candidatus Phytoplasma australasiae' and Tomato yellow leaf curl virus in tomato plants
European Journal of Plant Pathology 158 (3), 733-744
Abstract: To evaluate the effect of mixed infection of two main pathogens of tomato in Iran, the interaction between tomato big bud phytoplasma (TBBP, 16SrII-D) and Tomato yellow leaf curl virus (TYLCV) was investigated under greenhouse condition. Tomato plants were graft-inoculated either with TBBP or TYLCV alone or together simultaneously and non-simultaneously. Symptoms expression and incubation period of the diseases were evaluated on all inoculated plants. To assess pathogen development, the concentrations of TBBP and TYLCV were compared at 10, 20, 40 and 70 days post-inoculation using quantitative PCR assays. In all replications, the tomato plants doubly inoculated with TBBP + TYLCV showed milder symptoms and longer incubation period than those singly inoculated with TBBP or TYLCV. Results also showed a reduction of TYLCV and TBBP concentrations in doubly inoculated plants when compared to single infection, although these reductions were not always statistically significant. In the tomato plants simultaneously inoculated with TBBP and TYLCV, the phytoplasma and virus concentrations were significantly lower at 70 days post-inoculation. These results suggest an antagonism between TYLCV and TBBP when infecting the tomato plant.
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Link to article at publishers website
Database assignments for author(s): Mohammad Salehi

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tomato yellow leaf curl virus	Tomato (Solanum lycopersicum)
	Phytoplasma australasiae	Tomato (Solanum lycopersicum)