Bi2WO6 nanostructures were synthesized by a hydrothermal route, where the effect of various experimental parameters on the products was investigated. It is demonstrated that the sample morphology and size is highly dependent on the NaOH content (or pH value). At C NaOH = 0-0.0175 mol (pH range of 1-4), the prepared samples present flower-like hierarchical microspheres which are constructed from...

BACKGROUND AND AIMS Adaptation to different pollinators is thought to drive divergence in flower colour and morphology, and may lead to interspecific reproductive isolation. Floral diversity was tested for association with divergent pollinator preferences in a group of four closely related wildflower species: the yellow-flowered Mimulus luteus var. luteus and the red-pigmented M. l. variegatus,...

The diverse morphology of orchid flowers and their complex, often deceptive strategies to become pollinated have fascinated researchers for a long time. However, it was not until the 20th century that the ontogeny of orchid flowers, the genetic basis of their morphology and the complex phylogeny of Orchidaceae were investigated. In parallel, the improvement of techniques for in vitro seed germi...

BACKGROUND AND AIMS Helichrysum bracteatum is called an 'eternal flower' and has large, coloured, scarious bracts. These maintain their aesthetic value without wilting or discoloration for many years. There have been no research studies of cell death or cell morphology of the scarious bract, and hence the aim of this work was to elucidate these characteristics for the bract of H. bracteatum. ...

The popular ornamental flowering plant Dianthus hybrida cv. Telstar Scarlet has been found to exhibit two populations, each with distinct flower morphology: female-like and hermaphroditic. In this work, development of D. was characterized through scanning electron microscopy, light- or stereo- from meristem formation the fully matured, open flower. difference between hermaphrodite plants initia...

A 76-year-old man presented with right shoulder pain, weight loss, and night sweats. Complete blood count showed isolated thrombocytopenia (26 3 10/L). The blood film demonstrated medium to large atypical lymphoid cells (12% of leukocytes), many with polylobated nuclei or flower cell morphology (panel A, image obtained using Olympus BX51 microscope, 31000 magnification). Computerized tomography...

The effects of different DNA molecules of the same length on the morphology of gold nanoparticles during synthesis are investigated. While spherical nanoparticles (AuNS) are observed in the presence of 30-mer poly T, like that in the absence of DNA, 30-mer poly A or poly C induces formation of the flower-shaped gold nanoparticle (AuNF). Detailed mechanistic studies indicate that the difference ...

In cells, one of the main roles of ceramide-enriched membrane domains is to recruit or exclude intracellular signaling molecules and receptors, thereby facilitating signal transduction cascades. Accordingly, in model membranes, even low contents of ceramide segregate into lateral domains. The impact of the N-acyl chain on this segregation and on the morphology of the domains remains to be explo...

Brassica coenospecies has been bestowed with a large collection of wild and weedy relatives, which could act as donors of genes controlling agronomically important traits like disease resistance, yield attributes, modified fatty acid composition in the seed etc. Additionally, the cytoplasm of these species could be the sources for developing alloplasmic male sterility systems that are important...