Typy publikací: Časopis

The high concentrations of abscisic, jasmonic, and salicylic acids produced under long days do not accelerate flowering in Chenopodium ficifolium 459

Napsal uživatel Kateřina Eliášová dne Pá, 08.04.2022 - 11:59

The survival and adaptation of angiosperms depend on the proper timing of flowering. The weedy species Chenopodium ficifolium serves as a useful diploid model for comparing the transition to flowering with the important tetraploid crop Chenopodium quinoa due to the close phylogenetic relationship. The detailed transcriptomic and hormonomic study of the floral induction was performed in the short-day accession C. ficifolium 459. The plants grew more rapidly under long days but flowered later than under short days.

Desiccation as a post-maturation treatment helps complete maturation of Norway spruce somatic embryos: carbohydrates, phytohormones and proteomic status

Napsal uživatel Kateřina Eliášová dne Po, 14.02.2022 - 11:30

Exposure of Norway spruce (Picea abies) somatic embryos and those of many other conifers to post-maturation desiccation treatment significantly improves their germination. An integration analysis was conducted to understand the underlying processes induced during the desiccation phase at the molecular level. Carbohydrate, protein and phytohormone assays associated with histological and proteomic studies were performed for the evaluation of markers and actors in this phase.

Micropropagation of an ornamental shrub Disanthus cercidifolius Maxim. and using ISSR and flow cytometry

Napsal uživatel Kateřina Eliášová dne Út, 05.01.2021 - 11:57

This study aimed to develop an efficient micropropagation protocol for Disanthus cercidifolius Maxim., an ornamental shrub. Sprouting buds of two genotypes (‘Trubaʼ and ‘PdSʼ) were used as an initial plant material. 

Interní autoři

The effect of storage conditions on the carotenoid and phenolic acid contents of selected apple cultivars

Napsal uživatel Kateřina Eliášová dne Po, 20.07.2020 - 15:53

The present study investigated how different storage conditions affect antioxidant levels in three scab-resistant and powdery mildew-tolerant apple cultivars. The contents of carotenoids, along with free and glycosylated phenolic acids, were quantified in harvested apples and apples stored in boxes with controlled atmospheric conditions (1.2% O2 and 2.2% CO2) and temperature (1 °C), boxes with regulated temperature (1 °C) and storage rooms with a temperature between 1 and 4 °C.

Phenolic acids in selected scab‑resistant and mildew‑tolerant apple cultivars

Napsal uživatel Kateřina Eliášová dne Čt, 16.04.2020 - 13:33

Phenolic compounds play important roles in plant defences against both biotic and abiotic stressors, and many in crop plants are highly beneficial for human health, but their quantities and profiles are influenced by numerous factors. Thus, the purpose of this study was to quantify free and glycosylated phenolic acids in apples (important sources of beneficial phenolics) in the course of fruit development, at harvest and during 5 months of storage.

Chenopodium ficifolium flowers under long days without upregulation of FLOWERING LOCUS T (FT) homologs

Napsal uživatel Kateřina Eliášová dne Pá, 04.10.2019 - 09:57

Frequent duplications of the FLOWERING LOCUS T (FT) gene across various taxonomic lineages resulted in FT paralogs with floral repressor function, whereas others duplicates maintained their floral-promoting role. The FT gene has been confirmed as the inducer of photoperiodic flowering in most angiosperms analyzed to date.

Dormancy breaking in Fagus sylvatica seeds is linked to formation of abscisic acid-glucosyl ester

Napsal uživatel Kateřina Eliášová dne Čt, 26.09.2019 - 13:20

Seed dormancy is an adaptive mechanism that allows seed germination under suitable environmental conditions. Germination of stored dormant seeds proceeds after dormancy breaking induced by stratification. To improve understanding of dormancy breaking in beechnuts, we: investigated effects of moisture content and temperature during storage; analysed contents of abscisic acid, abscisic acid metabolites and indole-3-acetic acid in embryonic axes during storage and stratification; and histochemically localized storage proteins.

Assessment of somaclonal variation in indirect morphogenesis-derived plants of Arracacia xanthorrhiza

Napsal uživatel Kateřina Eliášová dne Čt, 25.07.2019 - 10:31

The objective of this work was to induce and detect somaclonal variation in arracacha (Arracacia xanthorrhiza) plants regenerated via indirect morphogenesis, in order to evaluate the potential of this technique to produce new genotypes for breeding purposes of this crop.

Interní autoři

Cytological, Biochemical and Molecular Events of the Embryogenic State in Douglas-fir (Pseudotsuga menziesii [Mirb.])

Napsal uživatel Kateřina Eliášová dne St, 27.02.2019 - 17:19

Somatic embryogenesis techniques have been developed for most coniferous species, but only using very juvenile material. To extend the techniques’ scope, better integrated understanding of the key biological, physiological and molecular characteristics of embryogenic state is required. Therefore, embryonal masses (EMs) and non-embryogenic calli (NECs) have been compared during proliferation at multiple levels.

The response of Picea abies somatic embryos to UV-B radiation depends on the phase of maturation

Napsal uživatel Kateřina Eliášová dne Út, 27.11.2018 - 11:17

In summary, the exposure of Norway spruce EC to UV-B radiation at different stages of maturation had the strongest effect on cell viability of embryos at early stages of development and resulted in the inhibition of somatic embryo development and/or the substantial decrease in the number of embryos. The extent of cell damage was dependent on the UV-B dose applied, as well as the embryo developmental stage, and might be related to differentiation of the outermost cell layers and formation of protoderm.