Կենսաբանության ֆակուլտետ
Faculty of Biology
Faculty of Biology of Yerevan State University has been established in 1933. :
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Lilit S. Gabrielyan

Associate Professor | Chair of Biochemistry, Microbiology and Biotechnology
Education (beginning with IHE)
1994-1999 – Department of Biophysics, Biological Faculty of the Yerevan State University (YSU),
2000-2003 – Ph.D. student at the Department of Biophysics, Biological Faculty, YSU

Academic degree
Ph.D. "Effect of the high temperatures and optical irradiation on primary processes of photosynthesis of Chlorella pyrenoidosa and Spirulina platensis", 2006, YSU, Biological Faculty

Professional experience
2015 - present: Associate Professor, Department of Microbiology, Plants and Microbes Biotechnology, YSU
2012 - 2015: Associate Professor, Department of Biophysics, YSU
2007 – 2012: Assistant Professor, Department of Biophysics, YSU
2006 - present: Senior Scientific Researcher, Department of Biophysics, YSU
2006 - 2012: Assistant Professor, Department of Biophysics, YSU
2003 - 2006: Junior Scientific Researcher, Department of Biophysics, YSU
2001 - 2003: Lab. Assistant and Senior Lab. Assistant, Department of Biophysics, YSU

Academic courses
Microbe Biophysics and Biotechnology, Membrane Biophysics and Bioenergetics, Algae and Fungi Biotechnology, Membranology

Scale of professional interests
Membrane biophysics and bioenergetics, biotechnology, microbiology

Participation in grant projects
2015: ANSEF Grant Principal Investigator (NS - Biotechnology - 3777, “Novel substrates for enhancement of bio-hydrogen photoproduction by Rhodobacter sphaeroides from Armenian mineral springs and development of bio-hydrogen technology”)
2013 - 2015: Grant of Ministry of Education and Science RA State Committee of Science, Researcher (13 - 1F002, “The pathways for developing the H2 production biotechnology by chemotrophic and phototrophic bacteria”)
2013: Grant for Productive Scientists (Top - 100) from the Ministry of Education and Science of Armenia
2012: ANSEF Grant Principal Investigator (NS - Biotechnology - 2704, “Growth stimulation and enhancement of hydrogen photoproduction by Rhodobacter sphaeroides strains from mineral springs by various metal ions”)
2011 - 2012: Grant of Ministry of Education and Science RA State Committee of Science, Researcher (11 - 1F202, “Hydrogen gas production by chemotroph and phototroph bacteria: hydrogenases mechanisms, their interactions and regulation pathways”)
2009: ANSEF Grant Principal Investigator (NS - Biotechnology - 1668, “Study of mechanisms and evolution of pathways to increase the molecular hydrogen production efficiency by Rhodobacter sphaeroides strains isolated from spring waters in Armenia”)

Languages
Russian (fluent), English (good), German (fair)

Professional membership
Member of International Association of Hydrogen Energy (IAHE)
Member of American Society for Microbiology (ASM)
Member of Federation of the Societies of Biochemistry (FEBS)
Member of Pan-Armenian Biophysical Association (IUPAB)
Member of Federation of European Microbiological Societies (FEMS)

Awards received
2015: Cleantech Armenia National Business Ideas Competition award (UNIDO GEF Global Cleantech Innovation Programme for SMEs in Armenia)
2013: “Productive Scientist” award from the Ministry of Education and Science of Armenia
2012: "We Demand Increase in Science Financing" initiative and "Tashir" charitable organization award.
2011: The “Best scientific work” awards of World Armenian Congress, The Union of Armenians in Russia and The National Academy of Sciences of Armenia

Participation in international conferences
ASM Workshop on Culture of Responsibility: from Lab to Environment, Yerevan, Armenia, September 30, 2015
VII International Congress “Low and Superlow Fields and Radiations in Biology and Medicine”, St. Petersburg, Russian Federation, 2015, September 7 – 11
10th EBSA European Biophysics Congress, 2015, Dresden, Germany, July 18 - 22.
3rd International Scientific Conference on “Dialogues on Sciences”, Yerevan, Armenia, 2015, June 23 – 26.
International Scientific Workshop “Trends in Microbiology and Microbial Biotechnology”, Yerevan, Armenia, 2014, October 5 – 8.
4rd Pan-Armenian Conference on Natural Science Education “Natural Science in the 21st Century”, Yerevan, Armenia, 2014, May 3 – 4.
38th FEBS Congress “Mechanisms in Biology”, St. Petersburg, Russian Federation, 2013, July 6 – 11.
3rd Pan-Armenian Conference on Natural Science Education “Natural Science in the 21st Century”, Yerevan, Armenia, 2012, April 28.
NATO Advanced Research Workshop “The Black Sea: Strategy for Addressing its Energy Resource Development and Hydrogen Energy Problems”, Batumi, Georgia, 2012, October 7 - 10.
International Conferance “Biotechnology and health – 4” and DAAD Alumni seminar, Yerevan, Armenia, 2010, October 28 – 30.
International Symposium “Solvation and Ionic Effects in Biomolecules: Theory to Experiment”, Tsakhkadzor, Armenia, 2010, May 17 – 21.

gabrielli@ysu.am
(+374 10) 22-04-31

Comparative Effects of Cu(Ii) and Ni(Ii) Ions Low Concentrations on Rhodobacter sphaeroides Growth Characteristics and Hydrogen Production
2016 | Thesis
American Society for Microbiology General Meeting ASM MICROBE. 2016, p. 71
Advantages of mixed carbon fermentation in biological hydrogen production by Rhodobacter sphaeroides
2016 | Thesis
International Conference "Photosynthesis Research for Sustainability - 2016". p. 196
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Окислительно-восстановительный потенциал и фотовыделение Н2 Rhodobacter sphaeroides: влияние ингибитора нитрогеназной активности
2016 | Article
Межд. научная конференция “Молекулярные, мембранные и клеточные основы функционирования биосистем”. 2016, стр. 27-29
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Developing hydrogen production biotechnology: cheap substrates, effective strains and optimized fermentative conditions
2016 | Thesis
21st World Hydrogen Energy Conference WHEC. 2016, p. 179-180
Novel approach of ethanol waste utilization: Biohydrogen production by mixed cultures of darkand photo-fermentative bacteria using distillers grains
2016 | Article
International Journal of Hydrogen Energy, 2016, 41, 2377-2382 pp.
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The distillers grains with solubles as a perspective substrate for obtaining biomass and producing bio-hydrogen by Rhodobacter sphaeroides
2016 | Article
BIOMASS & BIOENERGY, 2016, 90, 90-94 pp.
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Biohydrogen production by purple non-sulfur bacteria Rhodobacter sphaeroides: Effect of low-intensity electromagnetic irradiation
2016 | Article
Journal of photochemistry and photobiology b-biology. 2016, 162, 592-596 pp.
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The effect of Cu (I) and Cu (II) ions' low concentrations on growth, biohydrogen production and the FoF1-ATPase activity of Rhodobacter sphaeroides
2016 | Article
International Journal of Hydrogen Energy, 2016, 41, 16807-16812 pp.
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Արփինե Պողոսյան, Լիլիթ Գաբրիելյան
Հայաստանի հանքային աղբյուրներից մեկուսացված Rhodobacter sphaeroides բակտերիաներում կենսաջրածնի ֆոտոարտադրության առանձնահատկությունները տարբեր վերականգնիչների և օքսիդիչների առկայությամբ
2016 | Article
ԵՊՀ ՈՒԳԸ գիտական հոդվածների ժողովածու, 2016թ․, 1.1 (11), 102-107 էջ, Հայաստան
Comparative effects of Ni(II) and Cu(II) ions and their combinations on redox potential and hydrogen photoproduction by Rhodobacter sphaeroides
2016 | Article
Journal of photochemistry and photobiology B-Biology, 2016, 164, 271-275 pp.
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Inhibitor studies on hydrogen photoproduction by Rhodobacter sphaeroides
2015 | Article
Proceedings of 6th International conference on Hydrogen Production, UOIT–Oshava, Ontarion, Canada, May 3–6, pp. 452–458 (ISBN: 978—9781236-3-5)
Metabolic cross-talk between nitrogenase and hydrogenase in Rhodobacter sphaeroides during photofermentation and hydrogen production
2015 | Article
BIT’s 5th Annual World Congress of Molecular & Cell Biology, Nanjing, China, April 24–28, p. 330
Photofermentative hydrogen production by Rhodobacter sphaeroides using ethanol fermentation waste
2015 | Article
ASM (American Society for Microbiology) 115th General Meeting, New Orleans, Louisiana, USA, May 30 – June 2, P0809
Effect of iron and magnesium ions combination on hydrogen photoproduction by Rhodobacter sphaeroides
2015 | Article
FEMS, 6th Congress of European Microbiologist, Maastricht, the Netherlands, June 7–11, p. FEMS-0756
Combination of dark- and photo-fermentative bacteria to enhance hydrogen production from ethanol (distillers grains) waste
2015 | Article
3rd International Scientific Conference on “Dialogues on Sciences”, Yerevan, Armenia, June 23–26, p. 8, ISBN 978-9939-1-0196-5
Oxidizer and reducer different effects on proton-translocating FoF1-ATPase activity of Rhodobacter sphaeroides membrane vesicles
2015 | Article
The FEBS Journal, V. 282, suppl. 1, p. 115
Study of membrane properties of Rhodobacter sphaeroides under various growth conditions
2015 | Article
Eur. Biophys. J., V. 44, suppl. 1, p. S88, ISSN: 0175-7571 (Print) 1432-1017 (Online)
Light/dark duration as a tool to enhance bio-hydrogen production by Rhodobacter sphaeroides
2015 | Article
15th International Symposium on Phototrophic Prokaryotes, Tübingen, Germany, August 2-6, p. 163
Light-dark duration alternation effects on Rhodobacter sphaeroides growth, membrane properties and bio-hydrogen production in batch culture.
2015 | Article
Int. J. Hydrogen Energy, V. 40 (11), pp. 4084 - 4091
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Gabrielyan L. S. , Sargsyan H. H., Ohanyan V. A., Trchounian A.
Effects of millimeter wave of low intensity on growth and H2 photoproduction by purple bacteria Rhodobacter sphaeroides
2015 | Article
VII International Congress “Low and superlow fields and radiations in biology and medicine”, Saint-Petersburg, Russia, September 7-11, p. 27–28
Novel properties of photofermentative biohydrogen production by purple bacteria Rhodobacter sphaeroides: effects of protonophores and inhibitors of responsible enzymes
2015 | Article
Microbial Cell Factory, V. 14, pp. 131–141
Воздействие миллиметровых волн низкой интенсивности на рости фотовыделение Н2 пурпурной бактерией Rhodobacter sphaeroides
2015 | Thesis
VII Межд. конгресс «Слабые и сверхслабые поля и излучения в биологии и медицине», 2015-09-07, стр. 27-28
The advantages of application and experience of computers technology in the teaching of biology at the universities
2014 | Article
Naturalist (4rd Pan-Armenian Conference on Natural Science Education “Natural Science in the 21st Century” (in Armenian)), Yerevan, Armenia, May 3–4, p. 139–141
Redox sensing by Rhodobacter sphaeroides: effects of oxidizer ferricyanide on bacterial growth and H2 photoproduction
2014 | Article
ASM 114th General Meeting, Boston, Massachusetts, USA, May 17–20, K-74
Protonophores affecting Rhodobacter sphaeroides growth and hydrogen photo-production
2014 | Article
The FEBS Journal, V. 281, suppl. 1, p. 668–669
Redox regulation of photo-fermentative hydrogen production by Rhodobacter sphaeroides
2014 | Article
The FEBS Journal, V. 281, suppl. 1, p. 207
Effect of light and dark shifts on bio-hydrogen production by Rhodobacter sphaeroides
2014 | Article
International Scientific Workshop “Trends in Microbiology and Microbial Biotechnology”, Yerevan, Armenia, October 5–8, p. 26
Concentration-dependent effects of metronidazole, inhibiting nitrogenase, on hydrogen photoproduction and proton-translocating ATPase activity of Rhodobacter sphaeroides
2014 | Article
Int. J. Hydrogen Energy, V. 39, pp. 100–106
Dithiothreitol, redox reagent, is affecting proton-translocating ATPase activity of Rhodobacter sphaeroides
2014 | Article
Biochim. Biophys. Acta – Bioenergetics, V. 1837, suppl, p. 90
Regulation of hydrogen photoproduction in Rhodobacter sphaeroides batch culture by external oxidizers and reducers
2014 | Article
Applied Energy, V. 131, pp. 20–25
The effect of various metal ions on bio-hydrogen production and the FoF1-ATPase activity of Rhodobacter sphaeroides
2013 | Article
In Black Sea Energy Resource Development and Hydrogen Energy Problems, NATO Science for Peace and Security Series C: Environmental Security, A. Veziroglu, M. Tsitskishvili (Eds.), Springer (Netherlands), pp. 165–177, Print ISBN: 978-94-007-6151-3; Online ISBN: 978-94-007-6152-0, doi: 10.1007/978-94-007-6152-0_15
Manganese, an important microelement for H2 photoproduction by Rhodobacter sphaeroides
2013 | Article
ASM 113th General Meeting. Abstracts, Denver (USA), May 18 – 21, O–2001
Diphenylene iodonium, as hydrogenase inhibitor, enhanced H2 photoproduction by Rhodobacter sphaeroides
2013 | Article
The FEBS Journal, V. 280, suppl. 1, p. 600
Effect of dimethylsulfoxide on redox potential and hydrogen photoproduction by Rhodobacter sphaeroides
2013 | Article
The FEBS Journal, V. 280, suppl. 1, p. 503–504
Investigation of proton motive force and proton ATPase activity role in Rhodobacter sphaeroides hydrogenase activity
2013 | Book
Eur. Biophys. J., V. 42, suppl. 1, p. S39, ISSN: 0175-7571 (Print) 1432-1017 (Online)
Concentration-dependent effects of dimethylsulfoxide on hydrogen production during Rhodobacter sphaeroides phototrophic growth
2013 | Article
FEMS, 5th Congress of European Microbiologist, Leipzig, Germany, July 21–25, p. 1724
Concentration-dependent effects metronidazole, inhibitor of nitrogenase, on hydrogen photoproduction by Rhodobacter sphaeroides
2013 | Article
5th World Hydrogen Technologies Convention (WHTC2013), & 14th China Hydrogen Energy Conference (CHEC2013), Shanghai, China, September 25–28, p. 46–47
Թռչունյան Ա. , Բաղրամյան Կ., Փոլադյան Ա., Գաբրիելյան Լ.
Կենսաբանական թաղանթների կենսաֆիզիկա, կենսաէներգետիկա և կենսաքիմիա
2012 | Book
Ուսումնամեթոդական ձեռնարկ:
Երևան, ԵՊՀ հրատարակչություն, 130 էջ
Concentration dependent glycine effect on the photosynthetic growth and bio-hydrogen production by Rhodobacter sphaeroides from mineral springs
2012 | Article
Biomass & Bioenergy, V. 36, pp. 333-338
Yeast extract as an effective nitrogen source stimulating cell growth and enhancing hydrogen photoproduction by Rhodobacter sphaeroides strains from mineral springs
2012 | Article
Int. J. Hydrogen Energy, V. 37 (8), pp. 6519–6526
Ni (II) and Mg (II) ions as factors enhancing biohydrogen production by Rhodobacter sphaeroides from mineral springs
2012 | Article
Int. J. Hydrogen Energy, V. 37 (9), pp. 7486–7491
Discrimination between Fe (II) and Fe (III) effects on redox potential and biohydrogen photoproduction by Rhodobacter sphaeroides
2012 | Article
ASM 112th General Meeting. Abstracts, San Francisco (USA), Q–2557
Effect of diphenylene iodonium on hydrogen production and membrane ATPase activity in Rhodobacter sphaeroide
2012 | Article
The FEBS Journal, V. 279, suppl. 1, p. 119
Relationship of proton motive force and the F0F1-ATPase with bio-hydrogen production activity of Rhodobacter sphaeroides: effects of diphenylene iodonium, hydrogenase inhibitor, and its solvent dimethylsulphoxide
2012 | Article
J. Bioenerg. Biomembranes, V. 44 (4), pp. 495–502
The Rhodobacter sphaeroides F0F1-ATPase activity: Effects of heavy metal ions and relationship with hydrogen photoproduction. Biochim
2012 | Article
Biophys. Acta – Bioenergetics, V. 1817, p. S133
Bio-hydrogen production and the FoF1-ATPase activity of Rhodobacter sphaeroides: effects of various heavy metal ions
2012 | Article
Int. J. Hydrogen Energy, V. 37 (23), pp. 17794–17800
Effect of glycine on growth and hydrogen photoproduction by Rhodobacter sphaeroides
2011 | Article
FEMS, 4th Congress of European Microbiologist, Geneva, Switzerland, June 26–30, p. 2149
The effect of various metal ions on redox potential and biohydrogen production by Rhodobacter sphaeroides from mineral springs
2011 | Article
17th Int. Biophysics Congress, Beijing, China, Oct. 30–Nov. 3, p. 276–277
Proton motive force in Rhodobacter sphaeroides under anaerobic conditions in the dark
2011 | Article
Current Microbiology, V. 62 (2), pp. 415-419
Дрожжевый экстракт как источник азота при росте и выделении молекулярного водорода пурпурной бактерией Rhodobacter sphaeroides
2010 | Thesis
Труды IV Сисакяновских чтений “Проблемы биохимии, радиационной и космической биологии”, Алушта, 5-9 сентября, с. 61-64
Molecular hydrogen production during various nitrogen source photo-fermentations by Rhodobacter sphaeroides
2010 | Thesis
Biochim. Biophys. Acta, 1797(1), p. 113-114
Growth characteristics and hydrogen production by Rhodobacter sphaeroides using various amino acids as nitrogen sources and their combinations with carbon sources
2010 | Article
Int. J. Hydrogen Energy, V. 35 (22), pp. 12201-12207
Purple bacteria and cyanobacteria as potential producers of molecular hydrogen: An electrochemical and bioenergetic approach. In Bacterial Membranes
2009 | Article
Research Signpost: Kerala (India), pp. 233–273, ISBN: 978-81-308-0374-6
Purple bacteria and cyanobacteria as potential producers of molecular hydrogen: An electrochemical and bioenergetic approach
2009 | Article
In Bacterial Membranes (Trchounian A., ed.). Research Signpost, Kerala (India), p. 233–273
Relationship between molecular hydrogen production, proton transport and the F0F1-ATPase activity in Rhodobacter sphaeroides strains from mineral springs
2009 | Article
Int. J. Hydrogen Energy, 34 (6), p. 2567-2572
Effects of some carbon and nitrogen sources on growth and hydrogen production by Rhodobacter sphaeroides
2009 | Thesis
FEMS, 3th Congress of European Microbiologist, Gothenburg, Sweden, June 28–Jule 2, p. 828
H2 production mediation by proton-motive force or proton-ATPase in Rhodobacter sphaeroides
2009 | Article
Eur. Biophys. J., 38(1), S97
Purple bacteria and cyanobacteria as potential producers of molecular hydrogen: an electrochemical and bioenergetics approach, 2009, Chapter of book
2009 | Book
In Bacterial Membranes. A. Trchounian (ed.). Res. Signpost: Kerala (India), pp. 233-273
Особенности роста и производство водорода Rhodobacter sphaeroides из минеральных источников Армении
2008 | Article
Вестник Росс. Военно-мед. академии, 3(23), прил. 2, с. 425
The F0F1-ATPase activity and molecular hydrogen production by Rhodobacter sphaeroides
2008 | Article
Biochim. Biophys. Acta, 15, S16
Molecular hydrogen production by Rhodobacter sphаeroides: phenomenon, redox potential and proton-coupled processes
2006 | Article
Biochim. Biophys. Acta, 14, p. 269–270
Воздействие высоких температур и ультрафиолетового излучения на структуру и функции фотосинтетического аппарата микроводорослей
2005 | Article
Биол. журнал Армении, 1-2 (57), c. 27–32
Действие повышенных температур и оптического излучения на первичные процессы фотосинтеза Chlorella pyrenoidosa и Spirulina platensis
2005 | Article
Автореф. дисс. к.б.н. – Ереван, 23 стр.
Спектрофотометрический анализ пигментов водоросли Chlorella pyrenoidosa, подвергнутой действию повышенных температур. (Բարձր ջերմաստիճանների ազդեցությունը ենթարկված Chlorella pyrenoidosa ջրիմուռի պիգմենտների սպեկտրալուսաչափական ուսումնասիրությունը)
2004 | Article
ԵՊՀ Գիտական տեղեկագիր, Բնական գիտություններ, 2004, #3, էջ 91-94 (ռուսերեն)
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Влияние последствия высоких температур на параметры медленной индукции флуоресценции хлорофилла а фотосистемы 2 хлореллы. (Բարձր ջերմաստիճանների հետազդեցությունը քլորելայի ֆոտոհամակարգ 2-ի քլորոֆիլ a-ի ֆլուորրեսցենցիայի դանդաղ ինդուկցիայի պարամետրերի վրա)
2003 | Article
ԵՊՀ Գիտական տեղեկագիր, Բնական գիտություններ, 2004, #1, էջ 86-93 (ռուսերեն)
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Исследование индукции флуоресценции некоторых микроводорослей при последовательном действии экстремальных температур и видимого света
2003 | Book
БЖА, N4, 2003, стр. 287-290
Влияние высоких температур на перераспределение энергии возбуждения между фотосистемами у цианобактерии Spirulina platensis
2002 | Article
Материалы III республ. молодежной научной конф. “XXI век: экологическая наука в Армении”, Ереван, 2002, с. 80–85