Krzysztof Głębicki's research while affiliated with Polish Academy of Sciences and other places

Publications (4)

Article
Full-text available
Sharp short-lasting voltage fluctuation is one of the components of plant electric activity. Common appearance of such fast signals (FS) in the stems of several species has been found. Observed spatial distribution of its amplitude excludes the possibility of an artefact, deriving from the electrode surface -- plant tissue interaction. The hypothes...
Article
The electric potential on the surface of the Lepidium sativum L. root apex was recorded by means of six non-polarizable electrodes. Nonevoked fluctuations of the potential with amplitudes below 0.1 mV were observed. The fluctuations could be reversibly inhibited either by ether vapor or by anoxia caused by N2. They did not occur in killed roots. Cr...
Article
Extracellular recordings of electrical potential in leaves of different species by means of band-pass amplifiers showed the occurrence of fast, small changes (spikes) with an amplitude below 1 mV. Local illumination of leaves induced temporal patterns of spikes outside the illuminated region. The light-induced patterns recorded by a given electrode...
Article
Full-text available
Application of a drop of auxin solution to a cut surface on the petiole in lupine shoot elicits a travelling pulse of electric potential decrease. This pulse was simultaneously recorded by means of a DC amplifier and band-pass amplifier 0.1-100 Hz, both connected to the same exploring AgCl electrode driven into the stem. The DC record shows a pulse...

Citations

... From growing stems of Helianthus annus, spontaneous impulses with frequencies of 1 £ 10 ¡2 Hz were consistently found; 222 and from growing portions of stems of Dianthus sp. (where cytoskeletal MTs and actin filaments would be abundant) spontaneous APs with frequencies of 0.2-0.25 Hz were recorded by Glębicki et al. 223 However, a frequency of only 0.08 Hz was found in the non-growing, basal zone of the stem, where the cytoskeleton might be expected to be less developed. From various zones of a small tree of Ficus elastica, the highest electrical impulse rate, recorded during a period of many weeks, was 3.3 Hz. 224 Unfortunately, the exact locations of the recording zones were not specified and, moreover, the frequencies varied from minute to minute: one zone had a frequency of 0.8 Hz, another of 1.7 Hz, while a third zone showed 1.7 Hz one minute and then 0.3 Hz during the next minute. ...
... In this experiments participation of cells of primary cortex including phloem in AP propagation was shown. AP propagation in Lupinus stem was studied by Hejnowicz et al. (1986) , using an AC amplifier. The recorded signals were interpreted as originating from rows of excitable cells. ...
... One more field of Zygmunt's interest was electrophysiology. [26][27][28][29] Zygmunt initiated electrophysiological studies aimed at examination of correlation between electrical signals, i.e., ion fluxes, and different physiological processes. Kazimierz Trębacz recalls that technical difficulties were usually a big challenge but they were solved by Zygmunt's ingenious ideas. ...
... One more field of Zygmunt's interest was electrophysiology. [26][27][28][29] Zygmunt initiated electrophysiological studies aimed at examination of correlation between electrical signals, i.e., ion fluxes, and different physiological processes. Kazimierz Trębacz recalls that technical difficulties were usually a big challenge but they were solved by Zygmunt's ingenious ideas. ...