NAME: Rumyana Panova Valkova

University of Plovdiv "Paisii Hilendarski"
Dept. of Plant Physiology and Molecular Biology
24, Tsar Assen St.
4000 Plovdiv
e-mail address:;


DATE OF BIRTH: 15 June 1975

2007 – Present
Major assistant in Molecular Biology, Department of Plant Physiology and Molecular Biology, Uni-versity of Plovdiv
2006 – 2007
Senior Assistant Professor, Department of Plant Physiology and Molecular Biology, University of Plovdiv, Bulgaria;
2003 – 2006
Assistant in Molecular Biology, Department of Plant Physiology and Molecular Biology, University of Plovdiv

 LECYURES, LABORATORY COURSES AND SEMINARS: Molecular Biology; Biological Membranes; Plant Biochemistry; Plant In vitro culture; Genetic engineering


2007 - PhD in Molecular Genetics, Department of Plant Physiology and Molecular Biology, Univer-sity of Plovdiv, Bulgaria
2005 - Plant Research International B.V., Wageningen, The Netherlands, COST Short-Term Scientific Mission,
1999 - MSc degree in Biology, Specialization in Plant Biotechnology, University of Plovdiv, Bulgaria


• Plant In vitro culture and plant transformation (Agrobacterium - mediate gene transfer)
• Plant Stress Response
• Investigation of main biochemical and insecticidal properties of Cry proteins
• Molecular analyses to the mode of action of non-typical, less well-studied members of the Cry family of insecticidal proteins
• The use of Bacillus thuringiensis delta-endotoxins in the biological control of codling moth, Cydia pomonella

English - writing, spiking, and understanding - very well.
Russian - writing, spiking, understanding - well.

Delta–endotokxins, Hybrid cry genes, Insect resistance, Mode of action of Cry proteins, Plant in vitro cultures, Oxidative stress in plants


Rumyana Bonheva. Insecticidal properties and mode of action of Cry15Aa endotoxin from B. thu-ringiensis serovar. thompsoni HD542 - COST862 Workshop on Bacterial Toxins for Insect Control, 2005, Nitra, Slovakia

Rumyana Boncheva, MSc; Stefan Dukiandjiev, Ivan Minkov, Ruud deMaagd, and Samir Naimov Activity of Bacillus thuringiensis  δ-endotoxins against codlingmoth (Cydia pomonella L.)larvae - Journal of Invertebrate Pathology, 2006,92, 84 –87.

SamirNaimov,GerganaZahmanova, RumyanaBoncheva,MilenaKostova, IvanMinkov, StefanDu-kiandjiev, andRuudA. deMaagd. Expression of syntetic SN19 hybrid delta-endotoksin encoding gene in transgenic potato - J.Biotechnology and Biotehnological Equipment, 2006,  Issue3

Румяна Бончева, Цветан Попов, Иван Минков, Валя Тонева."Изследване защитната роля на H2O2 срещу окислителен стрес и участието на калмодулина и глутамат декарбоксилазата в защитните механизми"- Научни трудове на ПУ,2006,Plantarum.

Samir Naimov, Rumyana Boncheva, Rumyana Karlova, Stefan Dukiandjiev, Ivan Minkov, andRuud A. de Maagd.Bacillus thuringiensis serovar thompsoni HD542 Crystal Proteins: Solubilization, Activation, and Insecticidal Activity-Appl. Environ. Microbiol. 2008 74: 7145-7151

Samir Naimov; Rumyana Valkova; Stefan Dukiandjiev; Ivan Minkov; Ruud A. de Maagd
Carboxy-terminal extension effects on crystal formation and insecticidal properties of Cry15Aa. Journal of Invertebrate Pathology (September 2011), 108 (1), pg. 56-58 

Rumyana Valkova, Elena Apostolova and Samir Naimov. Plant molecular farming: opportunities and challenges. Journal of the Serbian Chemical Society78 (3)407-415 (2013) JSCS-4425