"GA525/02/0301" . . "2008-06-02+02:00"^^ . . "41"^^ . "41"^^ . "In the half of the period of the grant solution in consequence of the death of the responsible investigator Prof. Pavel Mader the new responsible investigator Prof. Jarom\u00EDr Lachman was designated and by this fact investigation of the changes of secondary"@en . "V polovin\u011B \u0159e\u0161en\u00ED grantu (srpen 2003) do\u0161lo v d\u016Fsledku \u00FAmrt\u00ED odpov\u011Bdn\u00E9ho \u0159e\u0161itele grantu Prof. RNDr. Pavla Madera, CSc. ke zm\u011Bn\u011B \u0159e\u0161itele za Prof. Ing. Jarom\u00EDra Lachmana, CSc., \u010D\u00EDm\u017E do\u0161lo \u010D\u00E1ste\u010Dn\u011B i k roz\u0161\u00ED\u0159en\u00ED sledov\u00E1n\u00ED zm\u011Bn sekund\u00E1rn\u00EDch metabolit\u016F poly"@cs . . . . . . "Neuvedeno."@en . . . . . "3"^^ . "1"^^ . . . "Odezva rostlin na abiotick\u00FD stres vybran\u00FDmi t\u011B\u017Ek\u00FDmi kovy" . . . . . "http://www.isvav.cz/projectDetail.do?rowId=GA525/02/0301"^^ . . . . . "Physiological state of three types of autotrophic organisms (higher plants, green algae and cyanobacteria) exposed to cadmium (Cd) will be characterized by the changes in composition and activity of several components of their photosynthetic apparatus (photosynthetic pigments, pigment-protein complexes, chlorophyll fluorescence, activities of PSI and PSII); in case of higher plants, the changes in their polyphenol and proline contents will also be followed. Biosynthesis of metallothioneins (MTs) seemsto be the most prominent mechanism of adaptive strategies of plants towards heavy metals such as Cd. High representation of the amino acid cysteine in MTs clearly points to the fundamental role of their SH groups in the MTs physiological activity. Both the SH groups as well as Cd ions are highly electrochemi-cally active. Until recently, however, the utilization of electrochemical methods in studies of plant MTs has been only marginal. It is the goal of this project to apply electrochemical methods in"@en . "0"^^ . "Fysiologick\u00FD stav t\u0159ech typ\u016F autotrofn\u00EDch organism\u016F (vy\u0161\u0161\u00ED rostlina, zelen\u00E1 \u0159asa a sinice)vystaven\u00FDch \u00FA\u010Dinku Cd(II) bude charakterizov\u00E1n zm\u011Bnami ve slo\u017Een\u00ED a aktivit\u011B n\u011Bkolika komponent jejich syntetick\u00E9ho apar\u00E1tu (fotosyntetick\u00E9 pigmenty, pigment-proteinov\u00E9 komplexy, fluorescence chlorofylu, aktivity fotosyst\u00E9m\u016F I a II); v p\u0159\u00EDpad\u011B vy\u0161\u0161\u00ED rostliny budeme t\u00E9\u017E sledovat zm\u011Bny v obsahu polyfenol\u016F a prolinu. Biosynt\u00E9za metalothionein\u016F (MT) je z\u0159ejm\u011B nejprominentn\u011Bj\u0161\u00EDm mechanismem adaptivn\u00ED strategie rostlin v\u016F\u010Di t\u011B\u017Ek\u00FDm kov\u016Fm jako nap\u0159. kadmium (Cd). Vysok\u00E9 zastoupen\u00ED aminokyseliny cysteinu v MT jasn\u011B ukazuje na z\u00E1sadn\u00ED roli SH-skupiny pro jejich fysiologickou aktivitu. Jak SH-skupiny tak Cd jsou elektrochemicky velmi aktivn\u00ED. Vyu\u017Eit\u00ED elektrochemick\u00FDch metod ke studiu rostlinn\u00FDch MT je v\u0161ak a\u017E dosud velmi mal\u00E9. Jedn\u00EDm z c\u00EDl\u016F tohoto projektu je aplikace t\u011Bchto metod v mnohem \u0161ir\u0161\u00EDm rozsahu ne\u017E jen pro kvantifikaci MT. Elektrochemick\u00E9 metody pracuj\u00ED na jin\u00E9m fyzik\u00E1ln\u00EDm principu ne\u017E" . "Response of plants to abiotic stress by selected heavy metals"@en .