First Report of Tomato chlorosis virus in Lebanon

Plant Disease
Y Abou-JawdahH Sobh

Abstract

Tomato seedlings showing leaf curl and yellowing symptoms characteristic of Tomato yellow leaf curl virus (TYLCV) were brought to the university laboratory from a commercial tomato greenhouse located in the Damour coastal area, south of Beirut, Lebanon. They were first tested using polymerase chain reaction (PCR) to ascertain their infection by TYLCV and then they were used in a trial to evaluate resistance of three local accessions of tomato to TYLCV, the major limiting factor to tomato production in Lebanon. Whiteflies (Bemisia tabaci), reared on broccoli for several generations, were allowed an acquisition access period of 48 h on tomato seedlings putatively infected with TYLCV and then were transferred to test plants at an average of 40 to 60 whiteflies per tomato seedling at the first-true leaf stage for an inoculation feeding period of 3 days. All treatments were conducted in insect-proof cages. Clear TYLCV symptoms were observed on the three local tomato accessions approximately 3 weeks after inoculation. However, 7 to 8 weeks after inoculation, many plants showed yellowing symptoms on the lower leaves that were not observed in previous experiments. Infections by Tomato chlorosis virus (ToCV) and/or Tomato infectious chl...Continue Reading

Citations

Jul 4, 2019·Molecular Plant Pathology·Elvira Fiallo-Olivé, Jesús Navas-Castillo
Apr 12, 2019·Pakistan Journal of Biological Sciences : PJBS·Aly Mohamed Mamoun Abdel-SalamRehab A Dawoud

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