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| 1 | Synthesis ofthin films by the pyrosol process显示文摘 | Tucic A Brankovic G Marinkoivc Z | 2002 | Chemical Indus- try2002,56,9: | 1 |
| 2 | Testing the adaptive plasticity of Iris pumila leaf traits to natural light conditions using phenotypic selection analysis显示文摘 | Tucic'B Tomic'V Avramov S | 1998 | Acta Oecologica1998,19,: | 1 |
| 3 | Seasonal dynamics of foliar antioxidative enzymes and total anthocyanins in natural populations of Iris pumila L.显示文摘Aims Plants in their natural habitats frequently cope with a multitude of abiotic stresses,such as high light intensity,extreme temperatures and water deficit,which often co-occur during periods of drought,especially in semi-arid and arid regions.Exposure of plants to stressful environmental conditions usually induce overproduction of reactive oxygen species(ROS)that,as highly toxic derivatives of O_(2),can assault all cell macromolecules,leading to the disruption of cellular homeostasis and,consequently,the uncoupling of major metabolic processes,the photosynthesis and photorespiration.In order to minimize ROS-mediated cellular damage,plants have evolved highly efficient antioxidative defense systems that include both enzymatic and non-enzymatic components.Since abiotic stress can also operate as a strong evolutionary force that shapes adaptations in natural plant populations,the aim of this study was to examine the seasonal variation patterns of two distinct antioxidative systems,ROS-scavenging enzymes and anthocyanin pigments,in the leaf tissue of a steppe plant,Iris pumila,as expressed under contrasting light conditions that the species regularly experiences in the wild.Methods We selected two natural populations of I.pumila inhabiting the alternative radiation environments in the Deliblato Sands,a sunexposed dune site and a woodland understory.The specific activity of three antioxidative enzymes,superoxide dismutase(SOD),catalase(CAT)and peroxidase(POD)and the content of total anthocyanins were examined in leaves of I.pumila plants collected from each of the 31 Iris clones(17 in the exposed population and 14 in the shaded population)once during each of the three seasons,spring,summer and autumn in 2004.Specifically,a fully expanded leaf was cut from each clonal plant between 15:00 and 16:00 h,immediately frozen in liquid nitrogen and stored at-70℃until preparation.Important Findings Generally,all three antioxidative enzymes were up-regulated in summer-harvested leaves compared to their spring or autumn counterparts,as was observed for the concentration of foliar anthocyanins,indicating that strengthening of antioxidant systems was the key mechanism for long-term acclimatization of I.pumila plants to stressful environmental conditions within their natural ecological niches.When plants from contrasting radiation environments were compared,SOD and CAT activities appeared to be greater in shade-exposed than in sun-exposed leaves.Conversely,POD activity and the content of foliar anthocyanins were notably higher in foliage experiencing full sunlight relative to those developed under vegetation canopy,suggesting the synergistic function of these two molecules in protecting leaf cells against photoinhibitory and photooxidative effects of strong light. | Ana Vuleta Sanja Manitasevic Jovanovic Darka Seslija Branka Tucic | 2010 | Journal of Plant Ecology2010,3,1: | 1 |
| 4 | The effects of selection for early and late reproduction on metabolite pools in Acanthoscelides obtectus Say显示文摘现在的学习针对在种子甲壳虫为其他的繁殖时间表揭示代谢物水池的回答到选择, Acanthoscelides obtectus 说(翘目:Chrysomelidae:Bruchinae ) 。代谢物的层次(免费的糖,肝糖,类脂化合物,可溶、恐水病的蛋白质) 那向前从成年羽化在三年龄在处女女性和男性被决定在基础人口(B) 和早为也被选择的二根导出的线之中被比较(Y) 或迟了的(O) 复制。结果在成年变老期间在成年人前开发期间在代谢物的累积,以及在他们的变化的模式显示出差别。与 B 人口相比,通常,从 Y 的短命甲壳虫衬里显示出的增加的蛋白质内容和类脂化合物内容,而反面为从 O 线的长寿甲壳虫是真的。从 O 线的女性从 Y 线比女性展出了在蛋白质内容的精力储备和更慢的增加的更慢的利用。女性们比男性包含了类脂化合物的免费的糖,肝糖和恐水病的蛋白质和可溶的蛋白质的高水平,尽管性同种二形均匀地没在线之中被表示。在代谢物内容的年龄特定的变化比男性在女性是更慢的。我们的调查结果建议在大写的资源之中的交易是早 / 晚的健康交易和点的一个生理的基础到那能被用于的资源的保存体的维护。 | Jelica Lazarevie Nikola Tucic Darka Se.slija Jovanovic Josef Vecera Dalibor Kodrik | 2012 | Insect Science2012,19,3: | 1 |
| 5 | Reaetion norms of juvenile traits to light intensity in Iris pumila(Iridaceae): a comparison of populations from exposed and shaded habitats显示文摘 | Danijela pemac Branka Tucic | 1998 | Plant systematics and evolution1998,209,: | 1 |
| 6 | Pyrosol preparation and structural characterzation of SnO2 thin films 显示文摘 | Tucic A Marinkovic Z V Mancic L Cilense M Milosevic O | 2003 | Journal of Materials Processing Technology2003,143,: | 1 |
| 7 | Heterosis in age-specific selected populations of a seed beetle: Sex differences in longevity and reproductive behavior显示文摘我们用喂种子的甲壳虫的短命、长寿的人口为老朽的进化测试了变化累积假设, Acanthoscelides obtectus (说) ,由选择获得了在上为许多代早年生活、迟了生活。在自然选择的力量是的地方,变化累积假设的期望的后果在短命人口是那最强壮在生活早,迟了生活的健康特点应该由于在以后的成年阶段与有害效果增加变化的频率的基因飘移衰退。因为相同有害变化将在几张独立人口增加,是不大可能的,为迟了生活的健康的混合活力在在为早年生活的健康特点选择的人口之中在十字获得的后代被期望。我们由比较混血儿和 nonhybrid 为混合活力测试了两性,女肥沃和男繁殖行为的长寿短命人口。混合活力为男性能力被证实,交配在迟了的年龄的两性的速度和交媾持续时间,和长寿。与男性相对照,在短命人口的女肥沃上的结果没为这个特点的进化作为基因机制支持变化累积。与这个假设的预言相反,在长寿人口的男性交配能力索引和女肥沃根本展出了混合活力 assayed 年龄班。我们表明那 nonhybrid 长寿人口关于女、男的繁殖健康随机分叉,,显示那种性对抗的选择为女肥沃和男性能力与基因飘移伴随了,可能负责在独立地演变制服自然选择长寿人口。 | Biljana Stojkovic Mirko Dordevia Jelena Jankovic Uros Savkovic Nikola Tucic | 2015 | Insect Science2015,22,2: | 0 |