A5053208434- Plant tissue culture and regeneration
- Polyamine Metabolism and Applications
- Phytochemicals and Antioxidant Activities
- Plant Stress Responses and Tolerance
- Biochemical and biochemical processes
- Seed Germination and Physiology
- Allelopathy and phytotoxic interactions
- Plant Molecular Biology Research
- GABA and Rice Research
- Weed Control and Herbicide Applications
- Plant Gene Expression Analysis
- Plant-Microbe Interactions and Immunity
- Transgenic Plants and Applications
- Plant Reproductive Biology
- Legume Nitrogen Fixing Symbiosis
- Essential Oils and Antimicrobial Activity
- Plant Disease Management Techniques
- Nematode management and characterization studies
- Plant Physiology and Cultivation Studies
- Plant biochemistry and biosynthesis
- Potato Plant Research
- Light effects on plants
- Plant Genetic and Mutation Studies
- Botany and Plant Ecology Studies
- Growth and nutrition in plants
Czech Academy of Sciences, Institute of Experimental Botany
2009-2022
Czech Academy of Sciences
1981-2010
Charles University
2000
Polish garlic and white red onions were subjected to blanching, boiling, frying, microwaving for different periods of time, then their bioactive compounds (polyphenols, flavonoids, flavanols, anthocyanins, tannins, ascorbic acid) antioxidant activities determined. It was found that blanching frying did not decrease significantly the amounts level (P > 0.05). The HPLC profiles free soluble ester- glycoside-bound phenolic acids showed trans-hydroxycinnamic (caffeic, p-coumaric, ferulic,...
Summary The aim of this investigation was to determine the nutritional and bioactive properties relatively less investigated exotic fruit durian ( Durio zibethinus Murr .) compare these indices with widely used mango Mangifera indica L.) avocado Persea americana ). For purpose HPLC, three‐dimensional fluorescence (3D‐FL), several radical scavenging assays multivariate factor analysis were used. It found a similarity in acetone extracts between contents polyphenols (1.66 ± 0.08, 1.48 0.05, mg...
The three youngest age‐classes of needles Norway spruce ( Picea abies ) were collected from four sites in the Krusne Hory Mountains (Czech Republic) characterized by different levels damage caused environmental pollution. Histochemical methods did not reveal any differences localization phenolics among needles. Mesophyll cells close to epidermis and around resin ducts substomatal cavities often accumulated higher amounts than rest mesophyll cells, but this was independent age damage. Needles...
The lignin contents and anatomical structure of roots wild cherry (Prunus avium L.) pedunculate oak (Quercus robur plantlets were compared to explain differences in response during transfer from vitro ex conditions. Lignification cell walls increased significantly both the period acclimation finally content root tissues propagated reached levels not different seedlings grown soil. Later on when secondary appeared, lignified xylem constituted most species. conspicuous interspecific difference...
The polyamine (PA) contents and activities of PA biosynthetic enzymes in Norway spruce somatic embryos [Picea abies L. (Karst.), genotype AFO 541] were studied relation to anatomical changes during their development, from proliferation germination, these variables associated with the germination mature zygotic compared. Activities steadily increased development embryos, embryogenic suspensor mass until early cotyledonary stages. In stages, spermidine (Spd) level was significantly higher than...
The effect of inhibition phenylpropanoid biosynthesis on the growth Medicago sativa L. suspension culture was studied. 2‐Aminoindan‐2‐phosphonic acid (AIP), a potent inhibitor phenylalanine ammonia‐lyase (PAL; EC 4.3.1.5), caused marked reduction in amount hydroxycinnamic derivatives few hours after cell inoculation into AIP medium. treatment alfalfa with this increased extractable PAL activity and elevated ethylene production during cycle. addition (10 μ M ) stimulated division cycle,...
Changes in the contents of polyamines (PAs) tobacco leaves (Nicotiana tabacum L. cv. Wisconsin 38) grown under 16 h photoperiod were correlated with arginine and ornithine decarboxylase (EC 4.1.1.19 EC 4.1.1.17) diamine oxidase 1.4.3.6) activities. The maximum free soluble conjugated forms PAs occurred 1–2 after middle light period was followed by two distinct peaks at end beginning dark phase. Putrescine most abundant cadaverine least PA both PCA-soluble forms. However, predominant...