Branka Živanović

University of Belgrade · Institute for Multidisciplinary Research

The growing zone (GZ) of the unicellular coenocytic sporangiophore of Phycomyces blakesleeanus represents the site of stimulus reception (light, gravity, gas) and stimulus response, i.e., local modulations of the elongation growth, which may result, in dependence of the stimulus direction, in tropic bending. Until now, evidence for a possible parti...

The roles of fungal auxins in the regulation of elongation growth, photo-, and gravitropism are completely unknown. We analyzed the effects of exogenous IAA (indole-3-acetic acid), various synthetic auxins including 1-NAA (1-naphthaleneacetic acid) and 2,4-D (2,4-dichlorophenoxyacetic acid), and the auxin transport inhibitor NPA (N-1-naphtylphtalam...

Efforts to breed salt tolerant crops could benefit from investigating previously unexplored traits. One of them is a tissue succulency. In this work, we have undertaken an electrophysiological and biochemical comparison of properties of mesophyll and storage parenchyma leaf tissues of a succulent halophyte species Carpobrotus rosii (‘pigface’). We...

Main conclusion: Blue light signalling pathway in broad bean leaf epidermal cells includes key membrane transporters: plasma- and endomembrane channels and pumps of H (+) , Ca (2+) and K (+) ions, and plasma membrane redox system. Blue light signalling pathway in epidermal tissue isolated from the abaxial side of fully developed Vicia faba leaves...

U nicellular zygomycete fungus Phycomyces blakesleeanus exhib-its a typical apical growth that depends on a complex interaction of different physiological processes. Sensitivity to the light, wind, barriers, touch and gravity of Phycomyces sporangiophore implicate the existence of the cross-talk between different signaling pathways in the same cell...

Relative changes (% control) in whole-plant physiological responses of two contrasting barley genotypes to prolonged salinity treatment (300 mM NaCl for 6 weeks).

Biochemical methods available for the measurement of antioxidant activity in salt-stressed tissues are reviewed, outlining the most important advantages and shortcomings of the methods. Here we consider commonly used methods for measuring total antioxidant capacity and phenolic content, ABTS and Folin-Ciocalteu's procedure, respectively. Moreover,...

Aims A causal relationship between salinity and oxidative stress tolerance and a suitability of using root antioxidant activity as a biochemical marker for salinity tolerance in barley was investigated. Methods Net ion fluxes were measured from the mature zone of excised roots of two barley varieties contrasting in their salinity tolerance using no...

Surface tip-to-base Ca 2+ and H + ionic fluxes are involved in apical growth and graviperception of the Phycomyces stage I sporangiophore Branka D.Živanović

Cited By (since 1996):3, Export Date: 18 October 2014

Overhead irrigation of lentil plants with salt (100 mM NaCl) did not have any significant impact on plant growth, while chlorophyll content and chlorophyll fluorescence parameter F-v/F-m were affected. Under such poor irrigation water quality, the malondialdehyde content in leaves was increased due to the lipid peroxidation of membranes. In seeds,...

Antioxidant Activity of Phenolic Compounds in Lentil Seeds (Lens culinaris L.) Jelena Dragišić Maksimović · Branka Živanović · Vuk Maksimović · Vesna Hadži-Tašković Šukalović Institute for Multidisciplinary Research, Kneza Višeslava 1, 11030 Beograd, Serbia Summary: The antioxidant activities of methanol extracts of lentil seeds (Lens culinaris L.)...

Respiratory characteristics of germinating spores, developing mycelium and mitochondria of the fungus Phycomyces blakesleeanus were investigated by means of oxygen Clark-type electrode. The effects of respiratory inhibitors and metabolic compounds on oxygen consumption were tested. It was demonstrated that P. blakesleeanus apart of cyanide-sensitiv...

We studied antioxidative system, germination, growth, and flowering in vitro in Chenopodium rubrum seeds of different ages. Peroxidase, superoxide dismutase, and catalase activity, as well as glutathione status, were determined in 2.5-h imbibed seeds. Germination was tested under controlled conditions. Growth and flowering of plants were tested in...

Chenopodium rubrum, a short-day plant, and C. murale, a long-day plant, were grown in vitro in continuous darkness. Control C. rubrum plants exposed to continuous darkness for 15 d at cotyledonary phase, did not flower, while 80 % of plants flowered on the medium with 5 % glucose and 10 mg dm−3 GA3. Control C. murale plants exposed to continuous da...

An analysis of the effect of metabolic inhibitors, sugars, and fusicoccin on the trans-plant electrical potential difference arising across one-week-old green or herbicide-treated Chenopodium rubrum L. plants was performed. The substances were applied either to the solution bathing the root or in the form of drops to the stem. The respiratory inhib...

In vitro culture of Chenopodium murale L. (ecotype 197) green and herbicide SAN 9789 - treated "white" plants was established and the effects of benzylaminopurine (BAP), indole-3-acetic acid (IAA) and gibberellic acid (GA3) on growth and flowering were tested. Green plants did not flower on glucose free media, while 17 % of plants flowered on 5 % g...

In vitro culture of long-day plant Chenopodium murale L was established. The effects of photoperiod, glucose and gibberellic acid (GA3) on flowering and growth in vitro were investigated. Oscillatory changes of photoperiodic sensitivity were noticeable with regard to plant age. The plants induced at the phase of the 1st and the 3rd pair of leaves f...

The medium forin vitro culture of green and SANDOZ herbicides-treatedChenopodium rubrum L. plants contained saccharides and hormones in different concentrations. Five days after sowing, the plants were exposed to non-inductive (15 long days—LD) or inductive (6 short days—SD + 9 LD) photoperiodic conditions. The length of hypocotyl and cotyledon bla...

Chenopodium rubrum L. ecotype 184 is a qualitative short-day plant with critical length of the night of eight hours that must be exceeded in order to flower: Five days after sowing, the plants were exposed to a various number of inductive cycles (14/10 h of däy/night cycle) to test the optimal photoperiodic conditions for flowering. In our experime...