Search Results - "Velitchkova, M"

Recovery of photosynthetic activity of resurrection plant Haberlea rhodopensis from drought- and freezing-induced desiccation by GEORGIEVA, K., MIHAILOVA, G., VELITCHKOVA, M., POPOVA, A.

“…The recovery of photosynthetic activity during rehydration of Haberlea rhodopensis from drought- and freezing-induced desiccation were investigated. The water…”
Get full text

Limiting steps and the contribution of alternative electron flow pathways in the recovery of the photosynthetic functions after freezing-induced desiccation of Haberlea rhodopensis by GEORGIEVA, K., POPOVA, A.V., MIHAILOVA, G., IVANOV, A.G., VELITCHKOVA, M.

“…Haberlea rhodopensis Friv. is unique with its ability to survive desiccation to an air-dry state during periods of extreme drought and freezing temperatures…”
Get full text

Effects of long-term action of high temperature and high light on the activity and energy interaction of both photosystems in tomato plants by Faik, A., Popova, A. V., Velitchkova, M.

“…The acclimation to high light, elevated temperature, and combination of both factors was evaluated in tomato ( Solanum lycopersicum cv. M82) by determination…”
Get full text

Temperature dependence of resonance Raman spectra of carotenoids by Andreeva, A., Apostolova, I., Velitchkova, M.

“…To understand the mechanism of the photoprotective and antioxidative functions of carotenoids, it is essential to have a profound knowledge of their excited…”
Get full text

UV-B induced alteration of oxygen evolving reactions in pea thylakoid membranes as affected by scavengers of reactive oxygen species by Lazarova, D, Stanoeva, D, Popova, A, Vasilev, D, Velitchkova, M

“…The effect of UV-B irradiation at temperatures of 22 and 4 °C on flash induced oxygen yields, photochemical activity, and energy transfer in pea thylakoid…”
Get full text

UV-B induced stress responses in three rice cultivars by Fedina, I.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology, Hidema, J.,Tohoku Univ., Sendai (Japan). Graduate School of Life Science, Velitchkova, M.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Biophysics, Georgieva, K.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology, Nedeva, D.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology

“…UV-B responses of three rice cultivars (Sasanishiki, Norin 1 and Surjamkhi) with different photolyase activity were investigated. Carbon dioxide assimilation…”
Get full text

Methyl Jasmonate Counteract UV-B Stress in Barley Seedlings by Fedina, I., Nedeva, D., Georgieva, K., Velitchkova, M.

“…The role of exogenously applied phytohormone methyl jasmonate (MeJA) in counteracting the ultraviolet B (UV‐B) stress in barley seedlings was investigated…”
Get full text

Effect of high temperature on dehydration-induced alterations in photosynthetic characteristics of the resurrection plant Haberlea rhodopensis by Velitchkova, M, Doltchinkova, V, Lazarova, D, Mihailova, G, Doncheva, S, Georgieva, K

“…The effect of high temperature (HT) and dehydration on the activity of photosynthetic apparatus and its ability to restore membrane properties, oxygen…”
Get full text

Temperature/light dependent development of selective resistance to photoinhibition of photosystem I by Ivanov, A.G, Morgan, R.M, Gray, G.R, Velitchkova, M.Y, Huner, N.P.A

“…Exposure of winter rye leaves grown at 20°C and an irradiance of either 50 or 250 μmol m −2 s −1 to high light stress (1600 μmol m −2 s −1, 4 h) at 5°C…”
Get full text

Photobleaching of photosynthetic pigments in spinach thylakoid membranes. Effect of temperature, oxygen and DCMU by Velitchkova, M.Y., Picorel, R.

“…The time dependence of photobleaching of photosynthetic pigments under high light illumination of isolated spinach thylakoid membranes at 22 and 4 °C was…”
Get full text

Protective effect of histidine against pigment photobleaching in Photosystem I particles by Velitchkova, M, Abarova, S, Lazarova, D, Stoitchkova, K, Stanoeva, D, Andreeva, A

“…Photosystem I (PSI) is a supercompiex of a reaction centre and light-harvesting complexes. Photosystem I particles isolated from spinach leaves were studied by…”
Get full text

UV-B response of green and etiolated barley seedlings by Fedina, I.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology, Velitchkova, M.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Biophysics, Georgieva, K.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology, Demirevska, K.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology, Simova, L.,Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. M. Popov Inst. of Plant Physiology

“…Seven-d-old etiolated and green barley seedlings (Hordeum vulgare cv. Alfa) were irradiated with UV-B for 30 min and then kept for 24 h in light or darkness…”
Get full text

Response of photosynthesis of Pisum sativum to salt stress as affected by methyl jasmonate by Velitchkova, M. (Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Biophysics), Fedina, I

“…10-5 M methyl jasmonate (JA-Me) treatment itself did not considerably change the 14CO2 fixation, parameters of room temperature chlorophyll fluorescence…”
Get full text

Effect of membrane lipid order on the degree of freezing damage of thylakoid membranes by Popova, A V, Velitchkova, M Y

“…The extent of freezing damage of the photosynthetic apparatus of isolated thylakoid membranes, control and after modification of their membrane fatty acid acyl…”
Get more information

Effects of cholesterol and benzyl alcohol on fluorescence transients of pea thylakoids by Busheva, M., Velitchkova, M., Markova, Tz, Zanev, Y.

“…Using the chlorophyll fluorescence induction and oxygen evolution measurements we investigated the influence of alteration of the fluidity of pea thylakoid…”
Get full text

Silicon amelioration of manganese toxicity in Mn-sensitive and Mn-tolerant maize varieties by Doncheva, Sn, Poschenrieder, C., Stoyanova, Zl, Georgieva, K., Velichkova, M., Barceló, J.

“…Differences in tolerance to Mn excess and amelioration by Si were evaluated in two maize varieties. Dry weight, callose accumulation, chloroplast…”
Get full text

Resonance Raman spectroscopy of carotenoids in Photosystem I particles by Andreeva, Atanaska, Velitchkova, Maya

“…Low-temperature resonance Raman (RR) spectroscopy was used for the first time to study the spectral properties, binding sites and composition of major…”
Get full text

Effect of pretreatment of barley seedlings with different salts on the level of UV-B induced and UV-B absorbing compounds by Fedina, Ivanka, Georgieva, Katya, Velitchkova, Maya, Grigorova, Irena

“…The relationship between the level of UV-B-induced and/or UV-B-absorbing compounds and stress tolerance of barley seedlings (Hordeum vulgare L. cv. Alfa) was…”
Get full text

High light-induced changes of 77 K fluorescence emission of pea thylakoid membranes with altered membrane fluidity by Velitchkova, Maya, Popova, Antoaneta

“…The effect of lipid phase order of isolated thylakoid membranes on fluorescent characteristics of both photosystems during illumination with high light…”
Get full text

UV-B-induced compounds as affected by proline and NaCl in Hordeum vulgare L. cv. Alfa by Fedina, Ivanka, Velitchkova, Maya, Georgieva, Katya, Grigorova, Irena

“…From the leaves of barley seedlings ( Hordeum vulgare L. cv. Alfa) UV-B induced compounds, with maximum absorbance at 438 nm (A 438) were extracted. The…”
Get full text