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Nodal cuttings of in vitro grown potato plants (Solanum tuberosum, cv. Miranda) were transformed by a vector plasmid carrying ipt gene of Agrobacterium tumefaciens. From the initial teratoma stage 5 clones of transgenic plants (1, 2, 11, 13 and 15) were obtained, which displayed in varying degree shortening of the internodes, decrease of the leaf size, decrease of apical dominance and poor rooting. In addition, two of the clones (11 and 13) showed increased stolon and tuber formation. In all these clones the endogenous level of free cytokinins (CKs) was increased: from 40% in clone 11 to almost 300% in clone 1. Also free indole-3-acetic acid (IAA) level was increased, but to a lower degree; the maximal increase was 160% (clone 13). Applied kinetin or IAA (1 mg·l-1) strongly suppressed root and tuber formation in clones 11 and 13, although they did not affect or even stimulated these processes in control plants. For control plants the minimal medium sucrose concentration necessary for tuber initiation was 6% whereas in clone 11 plants 2% was sufficient. Different distribution of endogenous CKs and IAA was observed in clone 11 and control plants. The highest CK content was found in transgenic plants in stems and in controls in leaves. In clone 11 plants abscisic acid (ABA) level was significantly increased in comparison to the control throughout the cultivation period. Ethylene formation was strongly increased the first week after the subcultivation and later on the difference between transgenic and control plants rapidly diminished. Reactions of clone 11 plants to red (RL) and blue light (BL) were similar to reactions of control plants. In RL clone 11 plants were tall and thin with stunted leaves; in BL they had a teratoma-like appearance and formed a very high number of tubers. The role of hormones in these changes in growth and tuber formation is discussed.

The thesis entitled Papelucho Phenomenon, a character in series of books by Marcela Paz analyses the most popular children book in Chile in relation to the origin of children literature, its significance and importance, presentation of Chilean children literature for children and young people by the first half of the 20th century. Biography of Marcela Paz is based on personal contact with relatives of the author. Papelucho, her most important literary work, is described with respect to content and style of individual series, translations into other languages and audiovisual adaptations. Analysis of Papelucho as a phenomenon is based on comparison of the main eightyear- old hero with psychological profile of children of younger school age that are target group of the Papelucho series.

Alexander Schmemann, one of the greatest orthodox theologians of the twentieth century, understands world in his liturgical theology as a gift of God ́s love to man. Man was created as a priest of creation and he should accept creation as a gift and bring it in thanksgiving back to God. But man diverted from God, he lives in a self-centred way and he separated divine and profane. Salvation is seen by Schmemann in Jesus Christ, who renewed relation of man to God, renewed the continuity between the world and himself. The central place in Schmemann ́s liturgical theology has liturgy. The eucharist is described by Schmemann as the entrance of the Church into the joy of her Lord. It has cosmic, all- embracing character and it transforms everything. This liturgy takes place in separation from the world, but for the world. In the offering we bring to God the whole world and it becomes in the liturgy what it always should have been, but was not. The Church is the gift of reconciliation and forgiveness. She represents the whole creation before God. Schmemann strongly emphasises the role of community. He criticises attempts of unity from "below" and he also does not accept the activities of the Church in the social and political sphere. Powered by TCPDF (www.tcpdf.org)