... embryogeny is a period of histogenesis and organo-genesis Early during this phase, the suspensor cells are dismantled by programmed cell death [11], and the root and shoot apical meristems are ... inner cells are founder cells of the ground tissue and vascular elements The outer cells form the protoderm which will become the epidermis Plant epidermis is characterized by the secre-tion of lipids ... temporally, which are important for their molecular functions [14] WOX2, WOX8 and WOX9 have been implicated in patterning and morphogenesis of the early embryo in Arabidopsis [3, 15, 16] AtWOX2 is expressed
Ngày tải lên: 22/05/2020, 03:49
... for OPDA as a defense regulator is supported by the Arabidopsis opr3 mutant, which is unable to metabolize OPDA and fails to synthesize downstream jasmonates [57] The opr3 mutant retains resistance ... females for oviposition, and by the larvae for feeding (right panels, center) The development of M sexta larvae is indistinguishable on OPR3-RNAi and wild-type plants (right panel, bottom) Resistance ... defense, and this ability is expected to differ with the degree of host specialization [14] According to this hypothesis, generalist herbivores are predicted to have evolved‘general’ mecha-nisms to
Ngày tải lên: 27/05/2020, 01:22
Aurora kinase B is important for antiestrogen resistant cell growth and a potential biomarker for tamoxifen resistant breast cancer
... Open AccessAurora kinase B is important for antiestrogen resistant cell growth and a potential biomarker for tamoxifen resistant breast cancer Sarah L Larsen1, Christina W Yde1, Anne-Vibeke Laenkholm2, ... blot analysis Cell cycle phase distribution and cell death were analyzed by flow cytometry To evaluate Aurora kinase B as a biomarker for endocrine resistance, immunohistochemistry was performed ... com-mittee for Region South Denmark, S-VF-20040064, the Ethical Committee waived the requirement for informed consent from the participants Immunohistochemistry (IHC) IHC was conducted on tissue microarrays
Ngày tải lên: 30/09/2020, 11:21
Which is the best method of sterilization for recycled bone autograft in limb salvage surgery: A radiological, biomechanical and histopathological study in rabbit
... segment as B and distal segment as C Segments A and C which contain the proximal and distal osteosynthesis sites were placed in labeled jar containing 10% neutral formalin solution for histopatho-logical ... scored and summed for each graft with (maximum score of 48 points) This evalu-ation was performed by a radiologist who was blinded to eliminate bias Histopathology evaluation Tissue morphology ... for each morphological feature Zoricic et al used this semi-quantitative system in his study on bone grafts in rabbits [7], and a blinded independent pathologist per-formed the microscopic histopathological
Ngày tải lên: 30/09/2020, 12:34
Lean is a process which is create more values for customers with fewer resources
... thesis that have not resolved At first,the sample of the thesis is small (only 13), however, it is the total number ofrespondents can be interviewed for this thesis Secondly, there are many issuesaccording ... understand which value the customer requires for theirproducts or services It is this value that determines how much money the customeris willing to pay for the product or services This results ... addedfashion This ability to separate man from machine reflects Toyota’s respect for theemployee and is an important enabler for Standardized Work to flourish There are several important components
Ngày tải lên: 07/06/2021, 11:26
investigation of energy efficiency for electro hydraulic composite braking system which is based on the regenerated energy
... accessories Trang 6quality, B2 is the piston viscous damping, Ky is thespring rate, xp is the cylinder piston displacement, and Fuis the force applied to the brake disc Here, the flow rate of the ... Trang 4where m is the vehicle mass, d is the differential symbol,vis the vehicle speed, r is the wheel radius, Ffis the roll-ing friction resistance, Fwis the air resistance, Tu= iwTL is the brake ... as electromagnetic force, the inertial force, the spring force, the hydraulic force, and the viscous drag force Based on the Newton second law, the relationship between the forces when the power
Ngày tải lên: 04/12/2022, 15:02
CASE STUDY đạo đức và TRÁCH NHIỆM xã hội TRONG MARKETING chickens or employees which is the most important stakeholder
... Chickens or Employees? Which Is the Most Important Stakeholder? In October, 2015, Tyson Foods, Inc., the largest U.S chicken processor, fired two of its employees at a Mississippi meatpacking plant ... what is the nature of their stake? 2 What are the stakes of the company and employees in this type of situation? Are their stakes more important than those of the special interest groups? 3 Is ... of cruelty to chickens As a result of this disclosure, six Tyson employees and the company faced possible criminal charges of animal cruelty A spokesman for Tyson said that the firm does not believe
Ngày tải lên: 23/12/2023, 18:22
Tài liệu Báo cáo khoa học: Myristoylation of the dual-specificity phosphatase c-JUN N-terminal kinase (JNK) stimulatory phosphatase 1 is necessary for its activation of JNK signaling and apoptosis pdf
... et al interactions For example, myristoylation of Src is required for its localization to the plasma membrane, which is critically important for its proper function A nonmyristoylated mutant of ... resistance to apoptosis Apoptosis is a tightly regulated mechanism for the disposal of damaged cells and to remove cells during normal growth and development [27,40] Cells that undergo apoptosis ... N-terminal myristoylation sequence and unusual in light of their potential to promote signaling In this study, we demonstrated that JSP1 is myristoylated Although this modification is not required for the
Ngày tải lên: 16/02/2014, 14:20
Tài liệu Báo cáo khoa học: Mitogen-activated protein kinase phosphatase-1 modulated JNK activation is critical for apoptosis induced by inhibitor of epidermal growth factor receptor-tyrosine kinase pdf
... dominant-negative form of JNK strongly suppressed AG1478-induced apoptosis These results reveal that JNK, which is activated through the decrease in the MKP-1 level, is critical for EGFR-tyrosine ... 3-kinase (PtdIns3K) pathway is also important for cell growth and cell survival One way by which PtdIns3K signals cells to survive is by activating pro-tein kinase PDK1 which in turn phosphorylates ... vector, and Y Inoue, Y Kaji and Y Hasegawa for technical assistance This work was supported in part by a grant-in-aid for scien-tific research from the Ministry of Education, Culture, Sports, Science,
Ngày tải lên: 18/02/2014, 13:20
Tài liệu Báo cáo khoa học: Nop53p, an essential nucleolar protein that interacts with Nop17p and Nip7p, is required for pre-rRNA processing in Saccharomyces cerevisiae pdf
... responsible for the formation of the mature 5.8S rRNA, indicates that this novel pro-tein is important for proper exosome function During the final preparation of this article a study was published ... trans-formed with pBTM-NIP7 and pACT-NOP53 Transform-ants were plated directly onto YNB medium lacking histidine for immediate selection of Nop53p-interacting proteins His+ clones were tested for ... YPL146C, Nop53p Nop53p is an essential nucleolar protein, which was also recently identified as a subunit in pre60S particles [6,7] In this study, we show that Nop53p is required for the late steps
Ngày tải lên: 20/02/2014, 01:20
Tài liệu Báo cáo Y học: Phosphorylation of initiation factor-2a is required for activation of internal translation initiation during cell differentiation ppt
... membrane which was then used for Western analysis using polyclonal antibodies specific for Vav (Santa Cruz) and polyclonal antibodies specific for CKIIa (a gift from D Canaani, Tel Aviv University, Israel) ... the mechanism(s) by which eIF2a phosphorylation serves to enhance IRES-mediated transla-tion A C K N O W L E D G E M E N T S This work was supported by the Israel Science Foundation adminis-tered ... synthesis in higher eukaryotes is commonly regulated at the level of eIF2a phosphorylation [4,24], we wished to check the status of eIF2a phosphory-lation in cells undergoing differentiation For this
Ngày tải lên: 22/02/2014, 07:20
Báo cáo khoa học: Polypyrimidine tract-binding protein is essential for early mouse development and embryonic stem cell proliferation potx
... potentials that are indistinguish-able from that of the mother cell This process is cen-tral to development, as well as to the maintenance of adult tissues in complex and long-lived organisms Self-renewal ... established from Ptb) ⁄ ) blastocysts or Cre-transfected Ptb) ⁄ flox-hygro ES cells Lower proliferation rates are also found in sall4-dis-rupted, klf5-dissall4-dis-rupted, HDAC1-dissall4-dis-rupted, ... be targets for mitotic inhibition [30,31] The regulatory mechanism of the ES cell cycle is still unclear We are currently investigating whether PTB is one of the important regulators for the G2⁄
Ngày tải lên: 07/03/2014, 00:20
Báo cáo khoa học: Replacement of two invariant serine residues in chorismate synthase provides evidence that a proton relay system is essential for intermediate formation and catalytic activity docx
... active site of chorismate synthase, which form a pro-ton relay system among the isoalloxazine ring of FMN, His106 and substrate This proton relay system is essential for catalysis and is probably synchronized ... protonation of His106, such that the enzyme is ready for the next sub-strate turnover In this mechanism, His106 plays a central role, supported by structural evidence that this residue has some conformational ... but before EPSP undergoes transforma-tion to the product [18,19] This species is formed very rapidly (within a few milliseconds) and dis-appears when all substrate has been consumed The formation
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khoa học: The F13 residue is critical for interaction among the coat protein subunits of papaya mosaic virus doc
... calculated for disks Results for PapMV disks and CP6–215 disks differed from those for F13L and F13Y disks, and suggest that there is still some RNA associated with recombinant F13L and F13Y disks This ... 2monomeric form of the protein [10] This protein failedto assemble, form disks or interact with RNA in vitro [10] On the basis of this result, we hypothesized that the N-terminus of the CP is involved ... three forms were as follows: NLP,33%; disks, 36%; and monomers, 31% This current profile differs slightly from the first one that we pub-lished [9] This is probably because the methods used for bacterial
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khoa học: The Y42H mutation in medium-chain acyl-CoA dehydrogenase, which is prevalent in babies identified by MS/MS-based newborn screening, is temperature sensitiv pptx
... of patients died prior to diagnosis of the disease [3] However, with early diagnosis and treatment prognosis is very favourable [11] Treatment is simple, consisting primarily of the avoidance ... tetramer is formed compared to wild-type This could be interpreted as indicating that folding of the monomers into an assembly-competent conformation is slowed for the Y42H protein, and/or that formation ... tetramers This tendency of a generally slowed, and temperature dependent biogenesis that is observed for the Y42H mutant protein is much more pronounced for the K304E mutant (Fig 1), consistent with
Ngày tải lên: 07/03/2014, 16:20
Báo cáo khoa học: Sequences downstream of the transcription initiation site are important for proper initiation and regulation of mouse ribonucleotide reductase R2 gene transcription ppt
... TATA-box is dispensable for basal and S-phase-specific expression from the R2 promoter, but that it is important for the position of transcription initiation However, the R2 TATA-box is required for ... Dervan for synthesis of the polyamide used in our experiments This work was supported by grants from the Swedish Research Council, the Swedish Cancer Society and the Swedish Foundation for Strategic ... Medical Biochemistry and Biophysics, Umea˚ University, Sweden Ribonucleotide reductase is essential for the synthesis of all four dNTPs required for DNA replication The enzyme is composed of
Ngày tải lên: 08/03/2014, 02:20
Báo cáo khoa học: A mammalian monothiol glutaredoxin, Grx3, is critical for cell cycle progression during embryogenesis doc
... conserved biochemi-cal mechanism among monothiol Grxs The Grx3 null mice demonstrate that this protein is essential for embryogenesis Specifically, mammalian Grx3 is required for efficient cell cycle ... expression is in tissues and embryos and induced by oxidative stress (A) Ten micrograms of total RNA isolated from brain, heart, spleen, liver, kidney, stomach, muscle, testis, lung and fat tissues ... homeostasis in mammalian cells (Fig 2B,C) Ubiquitous expression of Grx3 in both mouse embryos and tissues indicates that Grx3 is required for cell growth, organ development and normal metabo-lism
Ngày tải lên: 14/03/2014, 23:20
Tài liệu Báo cáo khoa học: A DExD⁄ H box RNA helicase is important for K+ deprivation responses and tolerance in Arabidopsis thaliana docx
... peer-reviewed and may be re-organized for online delivery, but are not copy-edited or typeset Technical support issues arising from supporting information (other than missing files) should be addressed ... seedlings that segregated at a ratio of : (resistant ⁄ sensitive) were selected for propagation of T3 individuals, which were used for further analysis Histochemical GUS staining AtHELPS and its ... x-direction, dc ⁄ dx is the ion concentration gradient, dx is 20 lm in our experiments, which is the distance of microelectrode movement between a near point and far point, and D is the ion diffusion...
Ngày tải lên: 14/02/2014, 18:20
Báo cáo khoa học: N-Glycosylation is important for the correct intracellular localization of HFE and its ability to decrease cell surface transferrin binding pptx
... protein is unable to form a structurally important disulfide bridge required for HFE interactions with b2 microglobulin (b2M) [4,5,8–11] In the absence of b2M binding, the protein misfolds and is retained ... HFE-C282Y protein that is known to misfold and induce a cellular unfolded protein response We propose that glycosylation is important for the folding of HFE and is essential for transport and exit ... N-glycosylation is important for HFE regulation of transferrin uptake To this end, transfected HuTu80 cells expressing HA-tagged forms of wild-type or mutant HFEs were analysed for their ability...
Ngày tải lên: 06/03/2014, 22:21
Báo cáo khoa học: The N-terminal hybrid binding domain of RNase HI from Thermotoga maritima is important for substrate binding and Mg2+-dependent activity pot
... a two-metal ion catalysis mechanism has been proposed for RNase H [14,16,17] According to this mechanism, one metal ion is required for substrate-assisted nucleophile formation and product release, ... an A280 value for 0.1% (1 mgÆmL)1) solution of 1.79 for Tma-RNase HI, 1.75 for Tma-CD, 1.85 for Tma-ND, 1.58 for Tma-W22A, 2.0 for Eco-RNase HI, 0.97 for Sto-RNase HI and 0.56 for Tk-RNase HII ... HBD is required for in vivo function of Tma-RNase HI It is unlikely that TmaCD is not produced or produced in a nonfunctional form in E coli cells in the absence of IPTG because the protein is...
Ngày tải lên: 06/03/2014, 22:21