The mechanism of floral organ specification is principally conserved in angiosperms, as demonstrated by the ABC model. By contrast, mechanisms that regulate the development of organs or structures specific to a group of species remain unclear. Grasses have unique inflorescence units, comprising spikelets and florets. In the genus Oryza (rice), the single spikelet consists of a fertile floret su...

It has been reported previously that cyclin G1 enables cells to overcome radiation-induced G(2) arrest and increased cell death and that these effects are mediated by transcriptional activation of cyclin B1. In this study, we further investigated the mechanism by which cyclin G1 transcriptionally activates cyclin B1. Deletion or point mutations within the cyclin B1 promoter region revealed that...

The G1 cyclin Cln3 is a key activator of cell-cycle entry in budding yeast. Here we show that Whi3, a negative G1 regulator of Cln3, interacts in vivo with the cyclin-dependent kinase Cdc28 and regulates its localization in the cell. Efficient interaction with Cdc28 depends on an N-terminal domain of Whi3 that is also required for cytoplasmic localization of Cdc28, and for proper regulation of ...

Let G and H be graphs. A graph with colored edges is said to be monochromatic if all its edges have the same color and rainbow if no two of its edges have the same color. Given two bipartite graphs G1 and G2, the bipartite rainbow ramsey number BRR(G1; G2) is the smallest integer N such that any coloring of the edges of KN;N with any number of colors contains a monochromatic copy of G1 or a rai...

In order to reveal the inhibitory effect of pomegranate punicalagin on macrophage foam cell formation and its possible mechanism, Raw264.7 macrophages were as experimental carrier detect cholesterol accumulation outflow, evaluate regulation related genes CD36, PPARγ outflow ABCA1/G1, LXRα by Western-Blot method. The results showed that can inhibit in raw264.7 due restraining PPARγ-CD36 expressi...

177 Effect of EPA-DHA Supplementation on Forced Expiratory Volume in One Second (FEV1) and Triglycerides in Obese Adolescents With Hypertriglyceridemia Nancy Mendez Berreondo. 3204, Distrito Federal, Mexico. Background: Evaluate the effect of supplementation of eicosapentaenoic acid (EPA) and docosahexanoic acid (DHA) in FEV1 and triglyceride levels in obese adolescents. Methods: Single blinded...

Complete and robust human genome duplication requires loading minichromosome maintenance (MCM) helicase complexes at many DNA replication origins, an essential process termed origin licensing. Licensing is restricted to G1 phase of the cell cycle, but G1 length varies widely among cell types. Using quantitative single-cell analyses, we found that pluripotent stem cells with naturally short G1 p...

Infection of cells in G1 phase with herpes simplex virus (HSV) prevents their progression into S phase (de Bruyn Kops, A., and Knipe, D. M., 1988, Cell 55, 857-868). We have examined G1-phase events in infected cells to determine whether this effect was the result of inhibition of G1 phase progression or of entry into S phase. We observed that HSV infection decreased pRb phosphorylation and ind...

In 1978, Bollobás and Eldridge [5] made the following two conjectures. (C1) There exists an absolute constant c > 0 such that, if k is a positive integer and G1 and G2 are graphs of order n such that ∆(G1),∆(G2) n− k and e(G1), e(G2) ckn, then the graphs G1 and G2 pack. (C2) For all 0 < α < 1/2 and 0 < c < √ 1/8, there exists an n0 = n0(α, c) such that, if G1 and G2 are graphs of order n > n0 s...

The articles [23], [26], [7], [25], [11], [2], [21], [18], [27], [6], [5], [3], [24], [12], [1], [13], [20], [28], [19], [4], [9], [10], [14], [15], [16], [8], [22], and [17] provide the notation and terminology for this paper. For simplicity we adopt the following rules: f will denote a non constant standard special circular sequence, i, j, k will denote natural numbers, p, q will denote point...