Tetrazolium violet is a tetrazolium salt and has been proposed as an antitumor agent. In this study, we reported for the first time that tetrazolium violet not only inhibited human lung cancer A549 cell proliferation but also induced apoptosis and blocked cell cycle progression in the G1 phase. The results showed that tetrazolium violet significantly decreased the viability of A549 cells at 5-1...

Zusammenfassung: VIOLA (Vertically Integrated Optical Testbed for Large Applications) ist ein vom BMBF im Rahmen der e-Science-Initiative gefördertes Projekt. Unter der Federführung des DFN arbeiten das Forschungszentrum Jülich, das Forschungszentrum caesar in Bonn, die Fraunhofer-Institute IMK und SCAI in Sankt Augustin, die Universität Bonn, die FH Bonn-Rhein-Sieg in Sankt Augustin, die RWTH ...

cyclotides are small disulfide-rich proteins that have the unusual feature of a cyclic backbone. cyclotides have a range of interesting biological activities and are found in a variety of tropical plants from the rubiaceae, violaceae, cucurbitaceae and fabaceae families. we have cloned and characterized cyclotides in viola modesta, a viola species native to western asia, which was collected fro...

In order to continue our previous studies on some Viola species from Romania, we have analysed for the first time some active principles from aerial parts of V. declinata Waldst. et Kit. We have performed gravimetric methods for saponins and mucilages, and spectrophotometric determinations and HPLC analysis of carotenoids. We established the content in saponins (4.40%), mucilages (10.26%), and ...

1. We evaluated the potential for three species of deciduous-forest herbs to exploit seasonal periods of direct irradiance. In particular, we investigated the importance of photosynthetic acclimation as a mechanism for shade-tolerant herbs to utilize direct light reaching the forest floor before canopy expansion in the spring and after canopy leaf drop in the autumn. 2. We measured the photosyn...

Sabine Langevin, Aurèlie Dommes, Viola Cavallo, Jennifer Oxley, & Fabrice Vienne 1 LPC, French Institute of Science and Technology for Transport, Development and Networks (IFSTTAR – INRETS), Versailles, France 2 MUARC, Monash University Sunway Campus, Malaysia 3 LEPSIS, French Institute of Science and Technology for Transport, Development and Networks (IFSTTAR – INRETS), Paris, France Email: sa...

Lindgren multiple-funnel traps, baited with (-)-cc-pinene and (k)-pityol, captured significant numbers of the weevils, Pissodes afjnis Randall and P. fascia&s LeConte, in a coastal stand of Douglas-fir and western white pine.

Background: A highly efficient genetic transformation system is essential for a successful genetic manipulation of the African violet (Saintpaulia ionantha Wendl.). Objectives: Developing a particle bombardment-based genetic transformation system for the African violet. Materials and Methods: A local cultivar of the African violet from Guilan province was used for transformation experiments. Th...