Growth regulators

The objective of the topic: The objective of this project is determination the role of a number of factors such as LED light, type and concentration of sugar, plant growth regulators, mineral medium, amino acids and polyamine in the flowering of T.fournieri in vitro.

27p extraenglish 24-05-2021 34 5   Download

The objective of the study was to find the explant resources, the type and concentration of plant growth regulators (PGRs), as well as the in vitro culture conditions suitable for different morphogenesis processes - callus induction, direct embryogenesis, shoot and root formation, etc. The growth and development of in vitro Ngoc Linh ginseng derived from thin cell layer (TCL) was examined in Quang Nam to assess the adaptability of in vitro Ngoc Linh plantlets in its natural territory, compared to those growing in Bidoup - Nui Ba National Park, Lam Dong.

27p capheviahe27 23-02-2021 21 5   Download

The objective of this project is determination the role of a number of factors such as LED light, type and concentration of sugar, plant growth regulators, mineral medium, amino acids and polyamine in the flowering of T. fournieri in vitro.

27p larachdumlanat129 20-01-2021 36 5   Download

India has witnessed significant growth in the manufacture of automobiles. Growth in vehicle population results in several environmental issues. Regulators have been controlling the emissions by setting standards.

6p lucastanguyen 01-06-2020 30 3   Download

The development of fruits without fertilization is known as parthenocarpy. Parthenocarpy improves the fruit quality, processing attributes, production and productivity of vegetable crops like tomato, cucumber, watermelon etc. Absence of seeds can enhances the shelf life of the fruits, allowing a better conservation, fruit set in adverse climatic conditions, early and offseason production of vegetable crops. Therefore, it is important to ensure yield stability regardless of environmental conditions.

20p gaocaolon5 14-06-2020 18 3   Download

Regulator of G protein signaling (RGS) proteins are gatekeepers regulating the cellular responses induced by G protein-coupled receptor (GPCR)-mediated activation of heterotrimeric G proteins. Specifically, RGS proteins determine the magnitude and duration of GPCR signaling by acting as a GTPase-activating protein for Gα subunits, an activity facilitated by their semiconserved RGS domain. The R7 subfamily of RGS proteins is distinguished by two unique domains, DEP/DHEX and GGL, which mediate membrane targeting and stability of these proteins.

13p caothientrangnguyen 09-05-2020 30 1   Download

The objective of the study was to find the explant resources, the type and concentration of plant growth regulators (PGRs), as well as the in vitro culture conditions suitable for different morphogenesis processes - callus induction, direct embryogenesis, shoot and root formation, etc. The growth and development of in vitro Ngoc Linh ginseng derived from thin cell layer (TCL) was examined in Quang Nam to assess the adaptability of in vitro Ngoc Linh plantlets in its natural territory, compared to those growing in Bidoup - Nui Ba National Park, Lam Dong.

27p xacxuoc4321 09-07-2019 35 5   Download

The transcription factor serum response factor (SRF) regulates expression of growth factor-dependent genes and muscle-specific genes in vertebrates. Homologous factors regulate differentiation of some ectodermic tissues in invertebrates. To explore the molecular basis of these different physiological functions, the functionality of human, Drosophila melanogaster and Artemia franciscana SRFs in mammalian cells has been compared in this article. D. melanogaster and, to a lesser extend, A.

9p system191 01-06-2013 34 5   Download

An unconventional phospholipase D (PLD) activity was identified recently in Saccharomyces cerevisiae which is Ca2+-dependent, preferentially hydrolyses phosphatidylethanolamine (PtdEtn) and phosphatidylserine and does not catalyse a transphosphatidylation with primary short-chain alcohols. We have characterized the cytosolic and membrane-bound forms of the yeast PtdEtn-PLD and examined the regulation of its activity under certain growth, nutritional and stress conditions. Both forms of PtdEtn-PLD activity were similarly activated by Ca2+ ions in a biphasic manner.

10p system191 01-06-2013 36 4   Download

Connective tissue growth factor/hypertrophic chondrocyte specific gene product 24 (CTGF/Hcs24) promotes proliferation and differentiation of chondrocytes in culture. We investigated the roles of two major types of mitogen activated protein kinase (MAPK) in the promotion of proliferation and differentiation by CTGF/Hcs24. Here we report the effects of the MAPKK/MEK 1/2 inhibitor, PD098059, and p38 MAPK inhibitor, SB203580, in a human chondrosarcoma-derived chondrocytic cell line (HCS-2/8) and rabbit growth cartilage (RGC) cells treated with CTGF/ Hcs24....

8p system191 01-06-2013 42 3   Download

BTG/Tob family proteins, which are characterized by similarities in their N-terminal BTG/Tob homology domains, control cell growth negatively. Among the BTG/ Tob family members, BTG2/TIS21/PC3 proteins have been reported to have short lives and to be degraded by the proteasome. However, the mechanisms regulating the stabilities of other BTG/Tob family proteins have not yet been clarified.

9p research12 01-06-2013 31 4   Download

Na + /K + -ATPase as an energy transducing ion pump has beenstudiedextensivelysince itsdiscovery in1957.Although early findings suggested a role for Na + /K + -ATPase in regulation of cell growth and expression of various genes, only in recent years the mechanisms through which this plasma membrane enzyme communicates with the nucleus have been studied.

6p research12 29-04-2013 34 4   Download

The hepatocyte growth factor-regulated tyrosine kinase substrate Hrs is an early endosomal protein that is thought to play a regulatory role in the trafficking of growth factor/ receptor complexes through early endosomes. Stimulation of cells with epidermal growth factor (EGF) rapidly leads to phosphorylation of Hrs, raising the question whether the receptor tyrosine kinase phosphorylates Hrs directly. Here, we present evidence that a downstream kinase, rather than the active receptor kinase is responsible. ...

7p research12 23-04-2013 37 2   Download

Basic ®broblast growth factor (bFGF) regulates diversi®ed biological functions in rat Sertoli cells. This report demon-strates that bFGF inhibits steroidogenesis in developing rat Sertoli cells. Follicle stimulating hormone (FSH)-stimulated estradiol production was reduced by bFGF. Moreover, the amount of cytochrome P450 aromatase, responsible for the irreversible transformation of androgens into estrogens, is decreased by bFGF at the transcriptional level.

10p research12 23-04-2013 31 2   Download

Imidazolium trans-imidazoledimethyl sulfoxide-tetrachlo-roruthenate (NAMI-A) is a novel ruthenium-containing experimental antimetastatic agent. Compelling evidence ascribes apivotal role toendothelial cells in theorchestration of tumor angiogenesis and metastatic growth, suggesting antiangiogenic therapy as an attractive approach for anticancer treatment.

10p tumor12 22-04-2013 44 2   Download

Annexin A1 (ANX-1), a calcium-dependent, phospholipid binding protein, is known to be involved in diverse cellular processes, including regulation ofcell growth and differen-tiation, apoptosis, and inflammation. The mitogen phorbol 12-myristate 13-acetate (PMA) induces expression and phosphorylation ofANX-1. However, the roles of ANX-1 in PMA-induced signal transduction is unknown. Here, we study the cellular localization ofANX-1 in the PMA-induced signal transduction process.

6p tumor12 20-04-2013 31 4   Download

Cysteine-rich protein 61 (Cyr61/CCN1) is an angiogenic factor and a member of a family of growth factor-inducible immediate-early genes with functions in cell adhesion, pro-liferation and differentiation.We investigated the regulatory mechanisms and signaling pathways involved inCyr61/ CCN1gene activation in smoothmuscle cells.Treatment of these cells with sphingosine 1-phosphate (S1P), a bioactive lysolipid, increased rapidly but transiently the expression of theCyr61/CCN1gene at both themRNAandprotein levels....

14p tumor12 20-04-2013 38 2   Download

To sustain life mammals have an absolute and continual requirement for oxygen, which is necessary to produce energy for normal cell survival and growth. Hence, main-tainingoxygen homeostasis is a critical requirement and mammals have evolved a wide range of cellular and phy-siological responses to adapt to changes in oxygen avail-ability. In the past few years it has become evident that the transcriptional protein complex hypoxia-inducible factor (HIF) is a key regulator of these processes.

10p tumor12 20-04-2013 35 4   Download

The c-jungene encodes the protein Jun, a component of the essential transcription factor, AP1. Jun/AP-1 occupies a central position in signal transduction pathways as it is responsible for the induction of a number of genes in response to growth promoters. However, the exact mecha-nisms leading to an enhanced expression of the c-jun gene itself during proliferation, differentiation, cell growth and development are not fully understood. Cell culture studies have given some insight in the mechanisms involved in the up-regulation of c-jun expression by UV irradiation and phorbol esters. ...

9p tumor12 20-04-2013 43 2   Download

Growth factors, including fibroblast growth factor-2 (FGF-2) and transform-ing growth factor-b(TGF-b) regulate fibroblast function, differentiation and proliferation. S100A8 and S100A9 are members of the S100 family of Ca 2+ -binding proteins and are now accepted as markers of inflammation. They are expressed by keratinocytes and inflammatory cells in human⁄murine wounds and by appropriately activated macrophages, endothelial cells, epithelial cells and keratinocytesin vitro.

17p awards 06-04-2013 35 2   Download