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1

The influence of secondary metabolites of Phoma lingam ([Tode ex Fr.] Desm) on callus tissue of winter rape

100%
Hura K.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
2

Does the secondary metabolites of Phoma limgam influence on the frost resistance of oilseed winter rape?

63%
Hura K., Rapacz M.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
3

Changes in total phenolics, ferulic and cinnamic acids content and PAL activity in seedlings of winter oilseed rape in oculated with Phoma lingam picnospores

63%
Hura K., Hura T.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1 Suppl.
4

Changes in the accumulation of some photosynthetic proteins and Cor14b during cold acclimation of winter barley genotypes with contrasting freezing tolerance

63%
Rapacz M., Hura K.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1 Suppl.
5

Comparison of various viabilty tests for studies of cell stress response in Brassica napus sunspension cultures

63%
Zur I., Hura K.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
6

Changes in fluorescence excitation spectra in cold-acclimated plants of oilseed winter rape infected by Phoma lingam

63%
Hura K., Hura T.
Acta Physiologiae Plantarum
|
2001
|
tom 23
|
nr 3 suppl.
7

The effect of medium on the toxic activity of Phoma lingam ([Tode ex Fr] Desm) secondary metabolites (PL 56) on Brassica napus L. callus culture

63%
Hura K., Rapacz M.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
8

The effect of cold acclimiaion and the lenght of mother plants growth at cold acclimation temperatures on frost resistance of sprig oilseed-rape calli

51%
Markowska E., Rapacz M., Hura K.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
9

Oxidative stress in barley callus under influence of different elicitors

51%
Plazek A., Hura K., Chudy A.
Acta Physiologiae Plantarum
|
2004
|
tom 26
|
nr 3 suppl.
10

Effect of long-term drought stress on leaf gas exchange and fluorescence parameters in C3 and C4 plants

51%
Hura T., Hura K., Grzesiak M., Rzepka A.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 2
A field study was performed on triticale, field bean, maize and amaranth, to find differences between studied species in physiological alterations resulting from progressive response as injuries and/or acclimation to long-term soil drought during various stages of plant development. The measurements of leaf water potential, electrolyte leakage, chlorophyll a fluorescence, leaf gas exchange and yield analysis were done. A special emphasis was given to the measurements of the blue, green, red and far-red fluorescence. Beside, different ratios of the four fluorescence bands (red/far-red: F₆₉₀/ F₇₄₀, blue/red: F₄₄₀/F₆₉₀, blue/far-red: F₄₄₀/F₇₄₀ and blue/ green: F₄₄₀/F₅₂₀) were calculated. Based on both yield analysis and measurements of physiological processes it can be suggested that field bean and maize responded with better tolerance to the water deficit in soil due to the activation of photoprotective mechanism probably connected with synthesis of the phenolic compounds, which can play a role of photoprotectors in different stages of plant development. The photosynthetic apparatus of those two species scattered the excess of excitation energy more effectively, partially through its transfer to PS I. In this way, plants avoided irreversible and/or deep injuries to PS II. The observed changes in the red fluorescence emission and in the Fv/Fm for triticale and amaranth could have occurred due to serious and irreversible photoinhibitory injuries. Probably, field bean and maize acclimatized more effectively to soil drought through the development of effective mechanisms for utilising excitation energy in the photosynthetic conversion of light accompanied by the mechanism protecting the photosynthetic apparatus against the excess of this energy.
11

Cold-induced processes enhancing plant resistance to the necrotrophic pathogens

51%
Plazek A., Zur I., Hura K., Rapacz M.
Acta Physiologiae Plantarum
|
2001
|
tom 23
|
nr 3 suppl.
12

The influence of the pathogen on the frost resistance of oilseed winter rape

51%
Hura K., Rapacz M., Hura T.
Acta Physiologiae Plantarum
|
2003
|
tom 25
|
nr 3 suppl.
13

Function of the photosynthetic apparatus of oilseed winter rape under elicitation by Phoma lingam phytotoxins in relation to carotenoid and phenolic levels

51%
Hura K., Hura T., Grzesiak M.
Acta Physiologiae Plantarum
|
2014
|
tom 36
|
nr 02
Stem canker (blackleg) caused by fungus Leptosphaeria maculans/L. biglobosa is one of the most damaging diseases of oilseed winter rape crops. Some winter oilseed rape varieties (Brassica napus L. var. oleifera ‘Bojan’, ‘Lisek’, ‘Liclassic’) that differ in blackleg resistance have been chosen for the experiment. In all tested cultivars during growth on a medium with a fungal elicitor, a distinct reduction in the length of the stems, the roots and the entire length of the seedlings was observed. However, only in the case of the ‘Liclassic’ cultivar, fresh and dry weight were reversibly affected during elicitation. The cultivar ‘Liclassic’, recognized as blackleg mildly resistant, was characterized by the most efficient photosynthetic apparatus under toxin elicitation. The efficient adaptation of photosynthetic apparatus in this cultivar was accompanied by an increase in the content of phenolics, chlorophyll and carotenoids. Only for ‘Liclassic’, did most of the measured parameters of chlorophyll fluorescence (Fv'/Fm' , ΦPSII, qP and qN) exhibit a statistically significant correlation with regard to the level of carotenoids. Therefore, in‘Liclassic’, the observed increase in carotenoid content seems to be a significant biochemical factor which can raise the efficiency of the photosynthetic apparatus under elicitation by Phoma lingam toxins.
14

Influence of mycorrhiza on growth, leaf water potential, chlorophyll content and gas exchange in Populus ssp. cultivars

51%
Grzesiak M. T., Hura K., Wojciechowska B.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2010
|
tom 545
The influence of mycorrhiza with Hebeloma crustuliniforme on plant growth, leaf water potential, leaf gas exchange and chlorophyll content in 3 poplar varieties (P. petrowskyana, P. deltoides cv. Plantierens, P. balsamifera) were investigated. After 11 weeks of plant growth mycorrhizal structures (frequency of mycorrhiza - FF%, intensity of the mycorrhizal colonization - MC% were observed in plant roots belonging to the treatment (M). No statistically significant differences were observed in the frequency of mycorrhiza (F%) and intensity of the mycorrhizal colonization (MC%) in plant roots of the treatment M between the examined poplar cultivars. The frequency of mycorrhiza (FF%) was high, and it reached about 75%, while the intensity of the mycorrhizal colonization (MC%) by fungi hyphae was slightly lower and equaled to from 49 to 58%. For plants, exposed to the inoculation with mycorrhizal fungi, advantageous and statistically significant changes in the measured physiological traits were observed. In this research advantageous differences in reactions between inoculated and non-inoculated poplar cultivars were observed, which was shown in the measurements of some physiological traits. Compared to the control plants (C), in the case of plants of the treatment (M) greater increase in plant height (∆Н), increase in chlorophyll content (SPAD), higher values of water potential (Ψ), and increase - in photosynthesis rate (Pn), stomatal conductance (gs) and water use efficiency (WUE), and decrease in transpiration rate (E), were observed. Although those differences were relatively small, we may presume that if they occur through a longer period they may become more distinct e.g. as a greater increase in height in the inoculated plants.
15

Wplyw egzogennego zwiazku fenolowego - kwasu kawowego na organogeneze Galanthus elwesii Hook. w kulturach in vitro

51%
Bach A., Pawlowska B., Hura K.
Biotechnologia
|
2010
|
nr 2
139-145
16

The effect of the exogenous phenolic compound, caffeic acid on organogenesis in Galanthus elwesii Hook. cultured in vitro

51%
Bach A., Pawlowska B., Hura K.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2009
|
tom 51
|
nr 1
17

The application of spectrofluorimetric methods for studying the different responses soil drought in triticale and maize plants

51%
Hura T., Hura K., Grzesiak M. T.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1 Suppl.
18

Effect of Phoma lingam ( Tode ex Fr.) Desm secondary metabolites on cell metabolic activity in Brassica napus suspension culture

51%
Zur I., Hura K., Rapacz M.
Acta Physiologiae Plantarum
|
1999
|
tom 21
|
nr 3 suppl.
19
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Early detection of Phoma lingam infection in oilseed winter rape Before visible symptoms appear

51%
Hura K., Hura T., Grzesiak M., Rapacz M.
Acta Biologica Cracoviensia. Series Botanica
|
2014
|
tom 56
|
nr 1
20

Porównanie aktywności antyoksydacyjnej odmian bazylii mierzonej różnymi metodami

51%
Baczek-Kwinta R., Serek B., Wator A., Hura K.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2009
|
tom 539
|
nr 1
Badano aktywność antyoksydacyjną i przeciwrodnikową liści roślin sześciu form genetycznych bazylii właściwej (Ocimum basilicum L.) oraz zawartość związków fenolowych i antocyjanów. Parametr całkowitej wydajności antyoksydacyjnej wyznaczony metodą FRAP wykazał stosunkowo niską zdolność redukcyjną roślin czerwonolistnej odmiany ‘Rubin’ w porównaniu z roślinami o liściach zielonych, wśród których wysokie wartości dawały rośliny wyrosłe z nasion oferowanych przez firmę Polan. Relacje między poszczególnymi genotypami były uzależnione od zastosowanego standardu (Troloksu lub kwasu askorbinowego). Aktywność przeciwrodnikowa (FRSA) wyznaczona metodą redukcji rodnika DPPH dała odmienne wyniki, bowiem najwyższe wartości zanotowano w przypadku odmiany ‘Rubin’. Także zawartość antocyjanów była najwyższa w liściach tej odmiany (różnica rzędu wielkości w stosunku do odmian zielonolistnych). Stwierdzono wyraźny związek pomiędzy pulą antocyjanów a FRSA (r=0,63). Nie wykazano natomiast korelacji pomiędzy pulą fenoli oznaczoną metodą Folina-Ciocalteu a wartościami FRAP czy FRSA. Aktywność antyoksydacyjna liści bazylii powinna być zatem badana różnymi metodami, które mogą ujmować aktywność chemiczną różnych grup związków czy też ich przekształconych form (antocyjanów, licznych związków fenolowych lub eugenolu).
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