Regeneration

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

This paper presents an artificial neural network (ANN) algorithm developed and trained to predict the performance of a solar powered adiabatic packed tower re-generator using LiBr desiccant.

16p lucastanguyen 01-06-2020 16 1   Download

The basic strategy of Russian nuclear energy is propagation of a closed fuel cycle on the basis of fast breeder and thermal reactors, as well as the solution of the spent nuclear fuel accumulation and resource problems.

7p christabelhuynh 30-05-2020 12 0   Download

Simulation and visualization of the mechanical components have become a predominant phase during the design and the production stages. Several means are used to improve the design and to reduce study time.

8p tohitohi 19-05-2020 20 3   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 33 5   Download

Department of Medical Biochemistry and Biology, University of Bari, Italy; 2Department of Zoology, Laboratory of Histology and Comparative Anatomy, University of Bari, Italy; 3Center for the Study of Mitochondria and Energy Metabolism (CNR) Bari, Italy Mitochondrial bioenergetic impairment has been found in the organelles isolated from rat liver during the prereplicative phase of liver regeneration.

9p system191 01-06-2013 35 4   Download

Phenylacetaldehyde reductase (PAR) produced by styreneassimilating Corynebacterium strain ST-10 was used to synthesize chiral alcohols. This enzyme with a broad substrate range reduced various prochiral aromatic ketones and b-ketoesters to yield optically active secondary alcohols with an enantiomeric purity of more than 98% enantiomeric excess (e.e.). The Escherichia coli recombinant cells which expressed the par gene could efficiently produce important pharmaceutical intermediates;

9p research12 01-06-2013 43 6   Download

Yellow stem borer has been identified as a major insect pest of deepwater rice, causing severe yield losses. Bt gene(s) from Bacillus thuringiensis have been proven very effective in pest resistance program. The use of transgenic plants expressing Bt gene(s) is now occupied effective approach to control insect infestation. We have successfully introduced a synthetic cryIA(b) gene into embryogenic calli of a deepwater indica rice variety, Vaidehi, by using the biolistic method of transformation.

6p zingzing09 24-04-2013 54 1   Download

Leaf explants of Echinacea purpurea L. taken from aseptically germinated seedlings were inoculated with A. tumefaciens strains EHA105, carrying a binary vector conferring herbicide resistant bar gene and fungal resistant chitinase gene. Glufosinate ammonium‐resistant shoots were regenerated on a medium containing BAP and NAA at a concentration of 4.88 and 0.053 μM, respectively. A subsequent transfer of shoots to medium containing BAP was necessary for stem elongation and leaf development.

11p zingzing09 24-04-2013 35 2   Download

ATP-regenerating enzymes may have an important role in maintaining ATP levels in mitochondria-like kinetoplast organelle and glycosomes in parasitic protozoa. Adenylate kinase (AK) (ATP:AMP phosphotransferase) catalyses the reversible transfer of thec-phosphate group from ATP to AMP, releasing twomolecules ofADP. This study describes cloningand functional characterizationof the gene encoding AK2fromagenomic libraryofLeishmaniadonovaniandalso its expression in leishmania promastigote cultures.

9p tumor12 20-04-2013 37 3   Download

Retinoid-binding proteins are indispensable for visual cycles in both vertebrate and invertebrate retinas. These proteins stabilize and transport hydrophobic retinoids in the hydro-philic environment of plasma and cytoplasm, and allow regeneration of visual pigments. Here, we identified a novel retinol-binding protein in the eye of a butterfly, Papilio xuthus. The protein that we term Papilioretinol-binding protein (PapilioRBP) is a major component of retinal soluble proteins and exclusively binds 3-hydroxyretinol, and emits fluorescencepeakingat 480 nmunder ultraviolet (UV) illumination. ...

10p fptmusic 16-04-2013 47 3   Download

We have developed a novel, publicly available annotation tool for the semantic encoding of texts, especially those in the narrative domain. Users can create formal propositions to represent spans of text, as well as temporal relations and other aspects of narrative. A built-in naturallanguage generation component regenerates text from the formal structures, which eases the annotation process. We have run collection experiments with the tool and shown that non-experts can easily create semantic encodings of short fables. ...

4p hongphan_1 15-04-2013 56 4   Download

Sentence Clustering is often used as a first step in Multi-Document Summarization (MDS) to find redundant information. All the same there is no gold standard available. This paper describes the creation of a gold standard for sentence clustering from DUC document sets. The procedure of building the gold standard and the guidelines which were given to six human judges are described. The most widely used and promising evaluation measures are presented and discussed. regenerated from all/some sentences in a cluster (Barzilay and McKeown, 2005). ...

9p hongphan_1 15-04-2013 51 3   Download

NAD(P)H regeneration is important for biocatalytic reactions that require these costly cofactors. A mutant phosphite dehydrogenase (PTDH-E175A⁄A176R) that utilizes both NAD and NADP efficiently is a very promising system for NAD(P)H regeneration. In this work, both the kin-etic mechanism and practical application of PTDH-E175A⁄A176R were investigated for better understanding of the enzyme and to provide a basis for future optimization.

12p fptmusic 11-04-2013 31 2   Download

GlutathioneS-transferases (GSTs) play critical roles in detoxification, response to oxidative stress, regeneration of S-thiolated proteins, and cata-lysis of reactions in nondetoxification metabolic pathways. Liver GSTs were purified from the anoxia-tolerant turtle,Trachemys scripta elegans. Purification separated a homodimeric (subunit relative molecular mass¼ 34 kDa) and a heterodimeric (subunit relative molecular mass¼32.6 and 36.8 kDa) form of GST.

13p fptmusic 11-04-2013 46 3   Download

Peripheral nerve injury is normally followed by a robust regenerative response. Here we describe the early changes associated with injury from the initial rise in intracellular calcium and the subsequent activation of transcription factors and cytokines leading to an inflammatory reaction, and the expression of growth factors, cytokines, neuropeptides, and other secreted molecules involved in cell-to-cell communication promoting regen-eration and neurite outgrowth.

11p awards 06-04-2013 32 2   Download

Thec-jun belongs to the family of proto-oncogenes and encodes for the protein Jun, a component of transcription factorAP-1 involved in regulation of the expression of genes indispensable for cell proliferation and differentiation. While the role ofc-junin the regulation of such genes has been well examined, the regulation ofc-junin proliferating cells is not fully understood.

11p awards 05-04-2013 31 3   Download

The recent discovery of theNogo family ofmyelin inhibitors and theNogo-66 receptor opens upa very promising avenue for the development of therapeutic agents for treating spinal cord injury. Nogo-A, the largest member of the Nogo fam-ily, is a multidomain protein containing at least two regions responsible for inhibiting central nervous system (CNS) regeneration. So far, no structural information is available for Nogo-A or any of its structural domains. We have sub-cloned and expressed two Nogo-A fragments, namely the 182 residueNogo-A(567–748) and the 66 residueNogo-66 in Escherichia coli..

11p dell39 03-04-2013 48 4   Download

Calpains are intracellular Ca 2+ -regulated cysteine pro-teases which mediate regulatory cleavage of specific substrates. They cover a broad range of physiological functions including proteolysis of molecules involved in cytoskeletal organization, the cell cycle, signal trans-duction, apoptosis, and protein renewal during growth and tissue regeneration. Originally found in mamma-lian skeletal muscle then in numerous organisms inclu-ding protists and plants, their expression is ubiquitous [1,2].

2p inspiron33 25-03-2013 41 4   Download

Nogo-A is a physiologically relevant inhibitor of neuronal growth and regeneration in the myelin of the adult human central nervous system and has attracted considerable attention as a molecular target for the treatment of spinal cord injuries.

11p galaxyss3 21-03-2013 49 3   Download