National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
European black alder (Alnus glutinosa L. Gaertn.) in symbiosis with Frankia and their growth on post-mining heap soils
Buchbauerová, Lucie ; Frouz, Jan (advisor) ; Roubíčková, Alena (referee)
Alder (Alnus glutinosa L. Gaertn.) is a species of a pioneer plant usually colonizing sites in the early stage of ecological succession, such as spoil heaps after open-cast brown coal mining in the Sokolov mining district in north western Bohemia, Czech Republic. These spoil heaps are very poor in nutrients available for plants, yet alders grow in a mutualistic relationship with actinomycetes Frankia, which live in root nodules of the alder plants. Frankia are able of fixing atmospheric nitrogen (N2) to ammonia (NH3) molecules, which can be then assimilate by alders, via enzyme nitrogenase. Thus, in the early stages of succession, alders have a competitive advantage to other non- fixing plant species living only on nitrates (NO3 - ) and ammonia ions (NH4 + ) present in soils. The aim of this study was to conduct and assess two greenhouse experiments. The first experiment studied the response of alder growth to presence of Frankia and arbuscular mycorrhizal fungi of order Glomerales. The performance of alder growth was significantly higher when alders were inoculated with both Frankia and mycorrhizal fungi in comparison to when alders have grown on their own or only with a mycorrhizal symbiont - both on 14 and 60 years old soils from Sokolov mines. In the second experiment, soil pH and iron (Fe) and...
Evolution of sex chromosomes and karyotypes in the lizard clade Laterata
Buchbauerová, Lucie ; Kratochvíl, Lukáš (advisor) ; Šťáhlavský, František (referee)
The aim of this study was to summarize all what is known about the karyotype and about sex chromosomes in the lizard clade Laterata and to analyze this two gained datasets by means of a phylogeny. Karyotype represents a whole number of chromosomes in a cell and it is an important source of informations on how the genetic information in nucleus is organized and how it works along with the evolution. The Laterata clade consists of four big groups of squamate reptiles: Teiidae, Gymnophthalmidae, Amphisbaenia and Lacertidae. All the groups have a genotypic sex determination system (GSD) and some species within these clades pones sex chromosomes. If they are present, in Teiidae and Gymnophthalmidae it is the XY sex chromosome system which determines the sex of a specimen. On the other hand, in Amphisbaenia and Lacertidae it is the ZW system of sex determination. Sometimes the X1X1X2X2:X1X2Y or Z1Z1Z2Z2:Z1Z2W sex chromosome system occurs in Teiidae / Gymnophthalmidae or in Lacertidae, respectively. The phylogenetical analysis was performed in Mesquite programme and the output from the analysis is a phylogenetical tree with two characters (number of chromosomes and the sex determination system) and the maximum parsimony counted for each of them. Then the interpretation was in the order and it is the main...
Evolution of sex chromosomes and karyotypes in the lizard clade Laterata
Buchbauerová, Lucie ; Kratochvíl, Lukáš (advisor) ; Šťáhlavský, František (referee)
The aim of this study was to summarize all what is known about the karyotype and about sex chromosomes in the lizard clade Laterata and to analyze this two gained datasets by means of a phylogeny. Karyotype represents a whole number of chromosomes in a cell and it is an important source of informations on how the genetic information in nucleus is organized and how it works along with the evolution. The Laterata clade consists of four big groups of squamate reptiles: Teiidae, Gymnophthalmidae, Amphisbaenia and Lacertidae. All the groups have a genotypic sex determination system (GSD) and some species within these clades posses sex chromosomes. If they are present, in Teiidae and Gymnophthalmidae it is the XY sex chromosome system which determines the sex of a specimen. On the other hand, in Amphisbaenia and Lacertidae it is the ZW system of sex determination. Sometimes the X1X1X2X2:X1X2Y or Z1Z1Z2Z2:Z1Z2W sex chromosome system occurs in Teiidae / Gymnophthalmidae or in Lacertidae, respectively. The phylogenetical analysis was performed in Mesquite programme and the output from the analysis is a phylogenetical tree with two characters (number of chromosomes and the sex determination system) and the maximum parsimony counted for each of them. Then the interpretation was on the order and it is the main...
Final report about research in Sokolov post mining sites in 2016 based on agreement between ENKI ops and Institute of Soil Biology BC CAS
Frouz, Jan ; Vindušková, O. ; Pikl, M. ; Angst, Šárka ; Kukla, J. ; Moradi, J. ; Vicentini, Fabio ; Buchbauerová, L. ; Tesnerová, C. ; Jandová, K. ; Kučera, J. ; Mudrák, O.
The report brings main results of the research about soil and ecosystem recovery in post mining landscape near Sokolov based on agreement between ENKI ops and Institute of soil biology, BC CAS.

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3 Buchbauerová, Lucie