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1502. Zdeněk Laštůvka, Jan Liška: Komentovaný seznam motýlů České republiky
- Format:
- Type:
- article, recenze, model:article, and TEXT
- Subject:
- Zoologie, motýli, Česko, 2, and 59
- Language:
- Czech
- Description:
- [autor recenze] Redakce.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1503. Zdeněk Šesták and Photosynthetica, a tribute
- Creator:
- Lichtenthaler, H. K.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- Šesták, Zdeněk, 1932-2008, odborné časopisy, fotosyntéza, professional journals, photosynthesis, 2, and 581
- Language:
- Multiple languages
- Description:
- On the occasion of the 50th anniversary of the international journal Photosynthetica in 2017 we briefly report on the establishment of this journal and on Dr. Zdeněk Šesták, the renowned researcher of photosynthesis processes who, in cooperation with the Czechoslovak Academy of Sciences, founded this essential science journal in Prague in 1967., H. K. Lichtenthaler., Obsahuje bibliografii, and Ozvláštněné číslování stránek článku 1-6. teprve na ně se napojuje pokračování stránkování navazující na 1. číslo časopisu
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1504. Ze života potápek na našich rybnících. 1
- Creator:
- Sychra, Jan
- Format:
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, ptáci, potápky, rybníky, Česko, 2, and 59
- Language:
- Czech
- Description:
- The order grebes (Podicipediformes) is an archaic group of birds, morphologically and ecologically well adapted to the aquatic life style, including breeding in floating nests in the littoral zone of water bodies. Four grebe species are breeding in fishponds in the Czech republic. Annually during the breeding season, these birds have to overcome many problems to successfully breed. In the incubation period, the most important mission for parents is to protect the eggs from predation. and Jan Sychra.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1505. Ze života potápek na našich rybnících. 2
- Creator:
- Sychra, Jan
- Format:
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, ptáci, potápky, rybníky, Česko, 2, and 59
- Language:
- Czech
- Description:
- Successful rearing of a grebe (Podicipediformes) brood depends on several environ - mental factors, such as climatic conditions and food supply at the breeding site. In connection with their insufficient thermoregulation in the first days of their life grebe chicks are brooded, warmed and fed, under the wings on the back of their pa - rents. Although grebes are very adaptable birds, fishpond degradation is currently inducing a decrease of these waterbirds. and Jan Sychra.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1506. Ze života slíďáka lesostepního - vzácného, nebo málokdy pozorovaného?
- Creator:
- Dolejš, Petr
- Format:
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Zoologie, hmyz, bezobratlí, pavoukovci, insects, invertebrates, arachnids, 2, and 59
- Language:
- Czech
- Description:
- Základní životní projevy mnoha druhů pavouků jsou stále zahaleny tajemstvím. Donedávna byl jedním z nich i slíďák lesostepní (Arctosa lutetiana, syn. Tricca lutetiana), který badatele překvapil nečekanými vlastnostmi - způsobem lovu počínaje, přes délku svého života a způsobem rozmnožování konče. Slíďák lesostepní je rozšířený prakticky po celé Evropě. Vyskytuje se od jižní Skandinávie po severní Řecko a od Francie po Ural; nenajdeme ho pouze na území Středozemí - nedávno publikovaný nález z Turecka (Bayram a kol. 2007) se zakládal na chybné determinaci, šlo o podobného slíďáka tbiliského (Arctosa tbilisiensis). Přestože tento pavouk žije v Evropě, na území s nejdéle trvajícím arachnologickým výzkumem, dosud se o jeho biologii nevědělo prakticky nic., Arctosa (syn. Tricca) lutetiana is a burrowing nocturnal extra-Mediterranean species of spiders (record from Turkey is a misidentification of A. tbilisiensis). As it preys passively inside its burrow, it has a prolonged life cycle. The mating period is in June. During copulation, males perform unique leg movements. Females spin only one egg sac (ca. 25 eggs) per season, the second egg sac is produced the following year., and Petr Dolejš.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1507. Zévy - mlži, kteří fotosyntetizují
- Creator:
- Černohorská, Nicole
- Format:
- print, bez média, and svazek
- Type:
- article, text, články, journal articles, model:article, and TEXT
- Subject:
- Biologické vědy, mořští měkkýši, mlži, korálové útesy, fotosyntéza, ohrožené druhy, sea molluscs, Bivalvia, coral reefs, photosynthesis, endangered species, Zévy, zooxantely, iridocyty, Tridacnidae, Giant clams, sea clams, 2, and 57/59
- Language:
- Czech
- Description:
- Zévy (Tridacnidae) jsou mezi mořskými mlži výjimečné velikostí i způsobem získávání potravy. V jejich plášti se vyskytují mikroskopické řasy zooxantely, které fotosyntézou produkují sacharidy, o něž se dělí s hostitelem. Za nápadné zbarvení pláště vděčí zévy zooxantelám a specializovaným buňkám iridocytům., Giant clams (Tridacnidae) are exceptional among sea clams for their size and the way they acquire food. On their shells microscopic zooxanthella algae occur, producing saccharides through photosynthesis, which they share with the host. The conspicuous coloring of the shells is due to the clams’ zooxanthellae and specialized iridocyte cells., and Nicole Černohorská.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1508. Zimní spánek zvířat
- Creator:
- Karel Kopecký
- Publisher:
- F. Šimáček
- Format:
- print, text, regular print, and 72 s. : il. ; 16 cm
- Type:
- text, volume, programmed text, učebnice středních škol, model:monograph, and TEXT
- Subject:
- Obecná zoologie, Učební osnovy. Vyučovací předměty. Učebnice, hibernace, obratlovci, bezobratlí, 591.543.42, 597/599, 592/595, (075.3), 2, 22, 591, and 37.016
- Language:
- Czech
- Description:
- studující mládeži sestavil Karel Kopecký
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1509. Zinc accumulation, photosynthetic gas exchange, and chlorophyll a fluorescence in Zn-stressed Miscanthus x giganteus plants
- Creator:
- Andrejić, G., Gajić, G., Prica, M., Dželetović, Ž., and Rakić, T.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- pigmenty, fotosyntéza, fytoremediace, pigments, photosynthesis, phytoremediation, Zn tolerance, 2, and 581
- Language:
- Multiple languages
- Description:
- Accumulation and distribution of zinc within Miscanthus x giganteus plants grown on elevated Zn concentrations and their photosynthetic performance were investigated. High concentrations of Zn in soils caused an increase of its concentrations in all plant organs. The bioconcentration factor, bioaccumulation factor, and translocation factor were lower than one indicating that M. x giganteus is an excluder plant species. Excessive Zn induced visible leaf damage, i.e. chlorosis and necrosis, only in the oldest leaves, pointing to Zn accumulation. Elevated amounts of Zn in leaves significantly lowered the photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentrations, parameters of chlorophyll a fluorescence, and chlorophyll b content. Despite Zn excess in leaves, there was no severe reduction in the maximal quantum yield of PSII photochemistry, indicating a high photosynthetic capacity, high tolerance to elevated Zn concetrations, and ability of M. x giganteus to grow on Zn-contaminated soils., G. Andrejić, G. Gajić, M. Prica, Ž. Dželetović, T. Rakić., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1510. Zinc oxide nanoparticle-mediated changes in photosynthetic efficiency and antioxidant system of tomato plants
- Creator:
- Faizan, M., Faraz, A., Yusuf, M., Khan, S. T., and Hayat, S.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- antioxidační enzymy, výměna plynu, růst, mikronutrienty, antioxidant enzyme, gas exchange, growth, mikronutrients, 2, and 581
- Language:
- Multiple languages
- Description:
- The present study was carried out to assess the role of zinc oxide nanoparticles (ZnO-NPs) in tomato plants on growth, photosynthetic efficiency, and antioxidant system. At 20-d stage of growth, roots of tomato plants were dipped into 0, 2, 4, 8, or 16 mg(ZnO-NPs) L-1 for 15, 30, and 45 min and then seedlings were transplanted in their respective cups and allowed to grow under natural environmental conditions. At 45-d stage of growth, the ZnO-NPs treatments significantly increased growth, photosynthetic efficiency together with activities of carbonic anhydrase and antioxidant systems in a concentration- and duration-dependent manner. Moreover, the treatment by 8 mg(ZnO-NPs) L-1 for 30 min proved to be the most effective and resulted in maximum activities of antioxidant enzymes, proline accumulation and the photosynthetic rate. We concluded that presence of ZnO-NPs improved the antioxidant systems and speeded up proline accumulation that could provide stability to plants and improved photosynthetic efficiency., M. Faizan, A. Faraz, M. Yusuf, S. T. Khan, S. Hayat., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public