A simple and efficient plantlet regeneration protocol via direct organogenesis was established for camphor tree (Cinnamomum camphora L.). Stem segments with one node (SN explants) from embryo-cultured seedlings (EC seedlings) were used as explants. Murashige and Skoog (MS) medium supplemented with 0.5 mg/L 2, 4-dichlorophenoxyacetic acid and 2.0 mg/L 6-benzyladenine was used to induce cotyledon...

Brucella abortus is the etiological agent of bovine brucellosis, a zoonotic disease that causes significant economic losses worldwide. The differential proteomic profile of bovine chorioallantoic membrane (CAM) explants at early stages of infection with B. abortus (0.5, 2, 4, and 8 h) was determined. Analysis of CAM explants at 0.5 and 4 h showed the highest differences between uninfected and i...

Curcumin ┑diferuloylmethane┒ is a phytochemical with potent Objectiveジ antiゾinflammatory and antiゾoxidant propertiesゴ and has therapeutic potential for the treatment of a range of inflammatory diseasesゴ including osteoarthritis ┑OA┒ズ The aim of this study was to determine whether nonゾtoxic concentrations of curcumin can reduce interleukinゾ÷beta ┑ILゾ÷╅┒ゾstimulated inflammation and catabolism in ...

The hormonal control of DNA and protein syntheses in cortical explants taken at 10 to 11 mm from the tip of 3-day-old seedling roots (Pisum sativum cv. Little Marvel) was examined. On the auxin medium, S2M, the cortical cells began to enlarge at day 4 in culture, with no DNA synthesis or cell division throughout the 7-day culture period. With the addition of kinetin to this medium, S2M + K, the...

AIM To determine the immunohistochemical characteristics of putative corneal epithelial stem cells remaining on limbal explants maintained in culture. METHODS Human limbal explant cultures were generated from 25 residual corneoscleral donor rims following penetrating keratoplasty. Serial sections of these explants were studied using immunohistochemical techniques with a panel of antibodies, o...

Introduction. The regeneration capacity of cartilage in general is very limited. Cartilage does not contain blood vessels and is thought to consist of only one cell type (chondrocytes) lacking progenitor cells. The chondrocytes, laying isolated in a dense extracellular matrix, have very limited proliferation potential. Despite the absence of repair or regeneration of damaged articular cartilage...

We identified hyaluronan synthase-2 (Has2) as a likely source of hyaluronan (HA) during embryonic development, and we used gene targeting to study its function in vivo. Has2(-/-) embryos lack HA, exhibit severe cardiac and vascular abnormalities, and die during midgestation (E9.5-10). Heart explants from Has2(-/-) embryos lack the characteristic transformation of cardiac endothelial cells into ...

Locus coeruleus (LC) explants were co-cultured with dissociated spinal neurons of mice. Nerve fibers exhibiting catecholamine fluorescence radiated from the explants and frequently invested spinal cord (SC) neurons close to the explants. Electrical stimulation of the explant and iontophoretic application of norepinephrine evoked a spectrum of slow depolarizing, hyperpolarizing, and biphasic res...

Knockdown studies in Xenopus demonstrated that the XMeis3 gene is required for proper hindbrain formation. An explant assay was developed to distinguish between autonomous and inductive activities of XMeis3 protein. Animal cap explants caudalized by XMeis3 were recombined with explants neuralized by the BMP dominant-negative receptor protein. XMeis3-expressing cells induced convergent extension...

alstroemeria (alstroemeriaceae family) is an ornamental monocot mainly produced for its cut flowers. embryogenic calluses have been employed for gene transformation in alstroemeria. this research work was undertaken to study the embryogenic callus induction in alstroemeria cv. fuego. the vegetative explants (node, internode, leaf) along with various concentrations of auxins (picloram, naa, iaa,...