One of the main causes worldwide decrease sowing quality soybean seeds is a cotyledonous bacterial blight in form necrotic decaying spots on outer or inner side cotyledons. We hypothesize that there primary non-bacterial cause for development cotyledons seeds. carried out research 2016-2020 at V.S. Pustovoit All-Russian Research Institute Oil Crops Cotyledonous never recorded immature healthy p...

OBJECTIVES To evaluate the cephalometric changes in skeletal, dentoalveolar and soft tissue variables induced by Clark's Twin Block (CTB) in Class II, Division 1 malocclusion patients and to compare these changes in different cervical vertebral maturation stages. METHODS Pre- and post-treatment/observation lateral cephalograms of 53 Class II, Division 1 malocclusion patients and 60 controls w...

Asymmetric cell divisions occur widely during many developmental processes in plants. In most angiosperms, the first zygotic cell division is asymmetric resulting in two daughter cells of unequal size and with distinct fates. However, the critical molecular mechanisms regulating this division remain unknown. Previously we showed that treatment of tobacco zygotes with beta-glucosyl Yariv (βGlcY)...

objective(s)  garlic (allium sativum) is known as a potent spice and a medicine with broad therapeutic properties ranging from antibacterial to anticancer, and anticoagulant. one of the major purified garlic protein components is the 47 kda protein. in this study, the effect of 47 kda protein extracted from aged garlic (age) was evaluated on mouse dendritic cell (dc) maturation in vitro. materi...

in order to determine the most effective hormones on the in vitro oocyte maturation (germinal vesicle breakdown - gvbd) in a hybrid sturgeon bester, ovarian follicles were incubated at the migratory nucleus stage in the presence of several steroids, gonadotropin preparations and forskolin. occurrence of gvbd and 17,20β-dihydroxy-4-pregnen-3 -one (dhp) production were followed during an expe...

The final step during cell division is the separation of daughter cells, a process that requires the coordinated delivery and assembly of new membrane to the cleavage furrow. While most eukaryotic cells replicate by binary fission, replication of apicomplexan parasites involves the assembly of daughters (merozoites/tachyzoites) within the mother cell, using the so-called Inner Membrane Complex ...

The microfilament inhibitor cytochalasin D inhibits extrusion of the first polar body when present during the first meiotic division of mouse oocytes; however, it does not interfere with anaphase movement of chromosomes, and thus induces the formation of tetraploid oocytes. After the separation of chromosomes in anaphase, two spindles start to assemble. However, they merge rapidly and a single ...

Sexual reproduction requires the fusion of two haploid cells to form a diploid zygote. In higher eukaryotes, this implies that specialized diploid cells, the germ cells, reduce their chromosome content during meiosis. A single round of DNA replication followed by two cell divisions characterizes this process, such that a single diploid cell gives rise to four haploid cells. In the first divisio...

Mammalian oocytes are arrested in prophase of the first meiotic division. Progression into the first meiotic division is driven by an increase in the activity of maturation-promoting factor (MPF). In mouse oocytes, we find that early mitotic inhibitor 1 (Emi1), an inhibitor of the anaphase-promoting complex (APC) that is responsible for cyclin B destruction and inactivation of MPF, is present a...