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1
Content available remote The role of phenolic compounds in plant resistance
100%
Kulbat K.
Biotechnology and Food Science
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2016
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tom Vol. 80, nr 2
97--108
EN
Phenolic compounds are plant secondary metabolites playing important roles in plant resistance. Their chemical structure is based on at least one aromatic ring bonded to one or more hydroxyl groups. They are mainly synthetized from amino acid phenylalanine which is converted to cinnamic acid. Phenolics are one of the largest and most diverse groups of plant active substances. These compounds take part in the regulation of seed germination and cooperate in regulating the growth of plants, also taking part in defence responses during infection, excessive sun exposure, injuries and heavy metal stress. One of the most important features of phenolic compounds is antioxidant activity which is closely related to their chemical structure. The aim of this review is to discuss the role of phenolic compounds in the interactions of plants with various stress factors, both biotic and abiotic with special attention to their antioxidant properties.
2
The role of phenolic compounds in plant resistance
88%
Kulbat K.
Biotechnology and Food Science
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2016
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tom 80
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nr 2
3
Antioxidants as a defensive shield in thyme (Thymus vulgaris L.) grown on the soil contaminated with heavy metals
63%
Kulbat K. , Leszczynska J.
Biotechnology and Food Science
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2016
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tom 80
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nr 2
4
Content available remote Molecular dialogue between plant resistance pathways – SAR and ISR
63%
Kulbat K. , Szczodrowska A.
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2014
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tom Vol. 78, nr 2
129--139
EN
During normal vegetation, plants are exposed to many stress factors, such as the presence of heavy metal ions in the soil, chemical pesticides, excessive UV radiation or pathogenic microorganisms. In response to local infections, plants activate salicylic or jasmonic acid-dependent signaling pathways. Systemic Acquired Resistance (SAR) and Induced Systemic Resistance (ISR) are two forms of induced resistance. The SAR pathway requires the accumulation of endogenous salicylic acid and provides protection against biotrophic pathogens. ISR requires the biosynthesis of jasmonic acid and protects against necrotrophic pathogens. Based on recent scientific research, cross-talk between SAR and ISR signaling pathways is thought to be involved in whole-plant resistance against a wide range of pathogens.
5
Molecular dialogue between plant resistance pathways – SAR and ISR
63%
Kulbat K. , Szczodrowska A.
Biotechnology and Food Science
|
2014
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tom 78
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nr 2
6
Content available remote Antioxidants as a defensive shield in thyme (Thymus vulgaris L.) grown on the soil contaminated with heavy metals
63%
Kulbat K. , Leszczyńska J.
Biotechnology and Food Science
|
2016
|
tom Vol. 80, nr 2
109--117
EN
The objective of this study was to investigate the effect of excessive concentration of selected heavy metals - nickel, copper and zinc on aromatic plants Thymus vulgaris. The present work examines the concentration of phenolic compounds, total antioxidant capacity and flavonoids content in leaves obtained from plants Thymus vulgaris grown on the soil contaminated with different concentration of these heavy metals. It was assumed, that selected metals, playing the role of micronutrients, cause toxic effect in their excessive concentrations, inhibit the growth and development of plants. Adverse impact on the plant is most likely due to the oxidative stress at a cellular level. It was demonstrated, that the lowest applied concentrations of heavy metals lead to the increased antioxidant content, which then decreases with increasing metal concentrations.
7
Content available remote Accumulation of metal ions in selected plants from Brassicaceae and Lamiaceae families
51%
Szczodrowska A. , Kulbat K. , Smolińska B. , Leszczyńska J.
Biotechnology and Food Science
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2016
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tom Vol. 80, nr 1
29--42
EN
This paper examines the accumulation of metal ions from soil in selected edible plants belonging to the Brassicaceae and Lamiaceae families. The effect of metal ions on factors, such as growth and morphology are also investigated. The results indicate that the addition of selected metal ions to the soil significantly increases the concentration of metal ions in the plants. The application of zinc ions significantly enhances Zn uptake in Ocimum basilicum and Mentha piperita (Lamiaceae family). Nickel ions significantly increase Ni accumulation in Lepidium sativum (Brassiaceae family). The research shows that nickel, zinc and copper accumulate in leaves at different concentrations depending on the plant species.
8
Content available Biosynthesis of defensive secondary metabolites of spice plants in answer to heavy metal stress condition
51%
Szczodrowska A. , Kulbat K. , Leszczynska J.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2013
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tom 94
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nr 3
9
Białka szoku termicznego - na straży komórek żywych
44%
Kulbat K.
Ekonatura
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2015
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nr 02
10
Herbata jako bogate źródło antyoksydantów
32%
Kopczewski T. , Mazerant K. , Parczewska A. , Gonerska A. , Nawrocka J. , Kulbat K. , Zaczynska D. , Olszak A. , Muziol A.
Ekonatura
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2012
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nr 07
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