Superoxide dismutase (SOD) gene expression was investigated to elucidate its role in drought and freezing tolerance in spring and winter wheat (Triticum aestivum). cDNAs encoding chloroplastic Cu/ZnSODs and mitochondrial MnSODs were isolated from wheat. MnSOD and Cu/ZnSOD genes were mapped to the long arms of the homologous group-2 and -7 chromosomes, respectively. Northern blots indicated that...

Aiming at the problems of ship plate forming spring-back in theory and experiment, combining the law of sheet metal forming, this paper puts forward a measurement and compensation method of spring-back outside plate of a ship based on the three dimensional NC (numerical control) pressing machine. First, we use Dynaform software for finite element analysis of springback prediction, and then esta...

organochlorine compounds such as, polychlorinated biphenyls and organochlorine pesticides are among the best known classes of contaminants because of their potential for magnification and harmful biological effects. in this study, the amounts of organochlorine pesticides including d.d.t and its metabolites, α, β and γ-hchs isomers, σcyclodiene (endosulfan, heptachlor, heotachlor epoxide, aldrin...

Using light (LM, including plastid characterization on fresh material) and scanning electron microscopy (SEM), as well a thorough morphological, physical, chemical, biological of the habitats, present study aims at describing three species new to science. They belong genera Eunotia Ehrenb., Planothidium Round L. Bukht., Delicatophycus M.J. Wynne, were found in two contrasting spring types north...

Climate change is driving Baltic Sea shifts, with predictions for decrease in salinity and increase temperature light limitation. Understanding the responses of spring phytoplankton community to these shifts essential assess potential changes biogeochemical cycles functioning. In this study we use a high-throughput well-plate setup experimentally define growth acquisition traits over gradients ...