AI Article Synopsis

  • Tomato yellow leaf curl (TYLC) is a serious disease impacting tomatoes globally, caused by begomovirus species, particularly TYLCSV and TYLCV, which affect crops in Southern Spain.
  • Research revealed that pepper plants were infected with two strains of TYLCV, including a new virulent strain not documented in the region before.
  • Experiments demonstrated that both TYLCV strains could infect pepper, common beans, and tomatoes, marking the first evidence of TYLCV affecting peppers and raising concerns about the disease's spread among crops.

Article Abstract

ABSTRACT Tomato yellow leaf curl (TYLC) is one of the most devastating pathogens affecting tomato (Lycopersicon esculentum) worldwide. The disease is caused by a complex of begomovirus species, two of which, Tomato yellow leaf curl Sardinia virus (TYLCSV) and Tomato yellow leaf curl virus (TYLCV), are responsible for epidemics in Southern Spain. TYLCV also has been reported to cause severe damage to common bean (Phaseolus vulgaris) crops. Pepper (Capsicum annuum) plants collected from commercial crops were found to be infected by isolates of two TYLCV strains: TYLCV-Mld[ES01/99], an isolate of the mild strain similar to other TYLCVs isolated from tomato crops in Spain, and TYLCV-[Alm], an isolate of the more virulent TYLCV type strain, not previously reported in the Iberian Peninsula. In this work, pepper, Nicotiana benthamiana, common bean, and tomato were tested for susceptibility to TYLCV-Mld[ES01/99]and TYLCV-[Alm] by Agrobacterium tumefaciens infiltration, biolistic bombardment, or Bemisia tabaci inoculation. Results indicate that both strains are able to infect plants of these species, including pepper. This is the first time that infection of pepper plants with TYLCV clones has been shown. Implications of pepper infection for the epidemiology of TYLCV are discussed.

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http://dx.doi.org/10.1094/PHYTO-95-1089DOI Listing

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