Elisaveta Stoimenova

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Pepper lines L57 and L113 and cv.Pico are inoculated by 1, 5, 10, 25, 75 μg/ml cucumber mosaic virus (CMV) in inoculum. Both lines are resistant to the virus and cv.Pico is used as a susceptible control. The lines respond with the development of chlorotic (L57) and necrotic (L113) spots on the inoculated leaf. The virus is established only in the inoculated(More)
An attenuated strain of tobacco mosaic virus (TMV) isolated from tobacco and symptopmless for tomato and pepper was put in fivefold passage in tolerant to tobamoviruses tomato. The changes in the strain population after the passages were studied by determination of the virion electrophoretic mobility, serological and biological properties of purified(More)
Altered photosynthetic reactions in cucumber mosaic virus (CMV) inoculated leaves of virus resistant lines L113 and L57 and susceptible pepper (Capsicum annuum L.) plants cv. Albena grown in controlled environment and in the field were investigated. The CMV inoculated leaves of virus resistant lines developed different symptoms—necrotic local lesions on(More)
15 lines were bred by interspecific hybridisation and I1 to I6 generation of three of them were tested for resistance to CMV. In spite of the selection by CMV resistance in the progenies the number of the resistant plants did not always increase. The progenies having 100 % symptomless plants for two or more consecutive years were not selected in the studied(More)
In the present work the responses of β-glucosidase in leaves of tomato plants subjected to various stress factors of both pathogenic (fungi, bacteria, viruses) and abiotic origin (heat shock) were studied. Biochemical and cytochemical methods were applied. It was established that an increase of β-glucosidase activity is induced uniquely by fungal pathogens.(More)
The serological properties of the Bulgarian strain P101 of paprika mild mottle virus (PAMMV) were investigated. Counter immunoelectrophoresis and double diffusion test were applied. The serological relationship with tobacco mosaic virus (TMV), tomato mosaic virus (ToMV), tobacco mild green mosaic virus (TMGMV), pepper mild mottle virus (PMMoV) and the Dutch(More)
The metabolic changes in tomato fruits and seeds separately infected with cucumber mosaic virus, Pseudomonas syringae pv. tomato or Botrytis cinerea were investigated cytochemically. The changes of peroxidase (E.C. and β-glucosidase (E.C. were investigated biochemically as well. Tomato fruits were involved in the study because of their(More)
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