Molecular description of Blumeria graminis f. sp. hordei isolates
Dreiseitl, Antonín; Komínková, Eva; Malečková, Eva; Vanžurová, Hana; Doležel, Jaroslav; Valárik, Miroslav
2015 - English Keywords: padlí ječmene; ječmen setý; markery molekulární; powdery mildew; spring barely; molecular markers; zemědělství Available in a digital repository NRGL Molecular description of Blumeria graminis f. sp. hordei isolates

Dreiseitl, Antonín; Komínková, Eva; Malečková, Eva; Vanžurová, Hana; Doležel, Jaroslav; Valárik, Miroslav
Agrotest fyto, s.r.o., 2015

Metabolic rhythms of unicellular, nitrogen fixing cyanobacteria and possible interplay with modeled KaiABC circadian oscillator
Červený, Jan; Nedbal, Ladislav
2011 - English Circadian clocks of living organisms provide evolutionary advantage and make living in dynamic environment more efficient. The clocks affect human lives and health as well as control the simplest organisms such as prokaryotic cyanobacteria. The cyanobacteria represent an excellent model that is amendable to a multitude of genetic, biochemical, and biophysical methods. The cyanobacterium, Cyanothece sp. ATCC 51142 relies on the circadian clock to permit, in the same cell, anoxygenic nitrogen fixation at night and oxygenic photosynthesis during solar day. We measured real-time, in-situ photosynthetic and respiratory activities as well as the culture growth under light forcing conditions and also under constant light, i.e. free-running mode. Interestingly, the experiments show a strong 24h-period dynamic pattern that is replaced by apparent 12h-period in free running mode. The 24h-pattern does not change significantly when changing the light/dark ratio from 16hL/8hD to 12hL/12hD and 8hL/16hD. Furthermore, we tried to elucidate connection between these metabolic rhythms and known structure of KaiABC circadian oscillator by means of mathematical modeling. One of simulation results show a strong correlation between the presumed catabolic event indicated by significant peak in respiratory activity, and simulated dynamics of KaiB4 complex in modeled circadian pacemaker. A causal relationship between these 2 events is suggested because KaiB4 facilitates dephosphorylation of KaiC6 hexamer, which is known to signal upcoming dark period. Keywords: metabolic rhytms; nitrogen fixing; KaiABC; ciardian oscillator; dusík; sinice; oscilátory Available in a digital repository NRGL Metabolic rhythms of unicellular, nitrogen fixing cyanobacteria and possible interplay with modeled KaiABC circadian oscillator

Circadian clocks of living organisms provide evolutionary advantage and make living in dynamic environment more efficient. The clocks affect human lives and health as well as control the simplest ...

Červený, Jan; Nedbal, Ladislav
Ústav výzkumu globální změny , 2011

Evaluation of Chemical and Technological Properties of Grain and Milling Franctions of Hulless Barley for Bakery Use
Vaculová, Kateřina; Balounová, Marta; Jirsa, Ondřej; Sedláčková, Irena
2011 - English Wider use of barley with great food potential due to its high nutritional value of grain is constrained by lack of knowledge about the functionality of barley grain components in terms of processing and food products development. Selected genotypes of hulless spring barley (cv. AF Lucius, lines KM 2084, KM 2283, KM 1057 and genetic resource Nudimelanocrithon) were examined for chemical composition (crude protein, starch, β-glucans, macro-minerals) and breadmaking properties of grain and grain milling fractions (flour, semolina, bran). Differences in chemical composition of genotypes reflected in both the yield and rheological properties of individual milling fractions, measured with farinograph and extensograph. The addition of barley flour (15-30%) or barley semolina and bran (10 and 20%) to standard wheat flour reflected in different rheological properties depending on a barley genotype. The farinograph parameters largely varied in individual materials, however, the percentage of barley fractions in the mixture did not affect the values considerably. In comparison with standard wheat flour, values of extensograph parameters were low (especially for energy and extensibility) in all barley samples studied. However, they were affected by both the proportion of barley fraction and its interaction with a rest period. When the rest period was longer (90 min), even higher additions of semolina or bran (especially in cv. AF Lucius) were technologically acceptable. Keywords: pekařství; bezpluché zrno; barley grain; milling fractions; hulless grain; bakery use; chemical composition; breadmaking properties; ječmen Available in a digital repository NRGL Evaluation of Chemical and Technological Properties of Grain and Milling Franctions of Hulless Barley for Bakery Use

Wider use of barley with great food potential due to its high nutritional value of grain is constrained by lack of knowledge about the functionality of barley grain components in terms of processing ...

Vaculová, Kateřina; Balounová, Marta; Jirsa, Ondřej; Sedláčková, Irena
Agrotest fyto, s.r.o., 2011

Wavelets
Čejchan, Petr; Hladil, Jindřich; Koptíková, Leona
2010 - English Keywords: hmotnostní spektrometrie; alternativní tresty Available in a digital repository NRGL Wavelets

Čejchan, Petr; Hladil, Jindřich; Koptíková, Leona
Geologický ústav, 2010

Towns in the Czech historical landscape - Image of reconciliation or confrontation?
Semotanová, Eva
2009 - English Keywords: historie; historická geografie; města; history; historical geography; towns; historie; regionální geografie; historická města Available in a digital repository NRGL Towns in the Czech historical landscape - Image of reconciliation or confrontation?

Semotanová, Eva
Historický ústav, 2009

Growth patterns of stromatoporoids as possible indicators of broad palaeoenvironmental conditions
Čejchan, Petr; Galle, Arnošt; Hladil, Jindřich
2008 - English Keywords: růst; indikátory Available in a digital repository NRGL Growth patterns of stromatoporoids as possible indicators of broad palaeoenvironmental conditions

Čejchan, Petr; Galle, Arnošt; Hladil, Jindřich
Geologický ústav, 2008

Coenocline reconstruction using graph theory and Bayesian probability data generator
Čejchan, Petr
2007 - English Keywords: teorie dat; teorie pravděpodobnosti Available in a digital repository NRGL Coenocline reconstruction using graph theory and Bayesian probability data generator

Čejchan, Petr
Geologický ústav, 2007

Gene Resources of Wheat (Triticum aestivum L.) with Different Arrangement of Spikelets in Spike
Martinek, Petr; Watanabe, Nobuyoshi; Peng, Zheng-Song
2005 - English Keywords: genové zdroje; pšenice; klas; klásek; morfologie klasu; wheat; genetic resources; spike morphology; spikelet; pšenice Available in a digital repository NRGL Gene Resources of Wheat (Triticum aestivum L.) with Different Arrangement of Spikelets in Spike

Martinek, Petr; Watanabe, Nobuyoshi; Peng, Zheng-Song
Agrotest fyto, s.r.o., 2005