Nec1 Gene
Mostrando 1-11 de 11 artigos, teses e dissertações.
-
1. Caracterização morfológica, patogênica e molecular de linhagens de Streptomyces associadas à sarna da batata de diferentes regiões produtoras do Brasil / Morphological, pathogenic and molecular characterization of Streptomyces strains associated to potato scab from different producing areas of Brazil
A batata ocupa o quarto lugar em volume de produção mundial de alimentos após o arroz, trigo e milho. O Brasil é o maior produtor dentre os países da América Latina, porém ainda apresenta baixa produtividade devida às doenças que afetam a cultura. Dentre as doenças bacterianas, a sarna da batata é uma das mais importantes economicamente e sua ocor
Publicado em: 2011
-
2. Calcium Depletion Dissociates and Activates Heterodimeric Notch Receptors
Notch receptors participate in a highly conserved signaling pathway that regulates morphogenesis in multicellular animals. Maturation of Notch receptors requires the proteolytic cleavage of a single precursor polypeptide to produce a heterodimer composed of a ligand-binding extracellular domain (NEC) and a single-pass transmembrane signaling domain (NTM). No
American Society for Microbiology.
-
3. Horizontal Transfer of the Plant Virulence Gene, nec1, and Flanking Sequences among Genetically Distinct Streptomyces Strains in the Diastatochromogenes Cluster
Evidence for the horizontal transfer of a pathogenicity island (PAI) carrying the virulence gene nec1 and flanking sequences among Streptomyces strains in the Diastatochromogenes cluster is presented. Plant-pathogenic, thaxtomin-producing Streptomyces strains, previously classified as S. scabiei based on the conventionally used phenotypic characteristics, we
American Society for Microbiology.
-
4. The MYB305 Transcription Factor Regulates Expression of Nectarin Genes in the Ornamental Tobacco Floral Nectary[C][W]
We have isolated and characterized the cDNA encoding the ornamental tobacco (Nicotiana langsdorffii X N. sanderae) homolog of the antirrhinum (Antirrhinum majus) MYB305. This transcription factor was robustly expressed at Stage 12 of nectary development but was only weakly expressed in the earlier Stage 6 nectaries. The ornamental tobacco MYB305 contains a c
American Society of Plant Biologists.
-
5. Characterization of an Insertion Sequence Element Associated with Genetically Diverse Plant Pathogenic Streptomyces spp.
Streptomycetes are common soil inhabitants, yet few described species are plant pathogens. While the pathogenicity mechanisms remain unclear, previous work identified a gene, nec1, which encodes a putative pathogenicity or virulence factor. nec1 and a neighboring transposase pseudogene, ORFtnp, are conserved among unrelated plant pathogens and absent from no
American Society for Microbiology.
-
6. Cloning and expression of a gene from Streptomyces scabies encoding a putative pathogenicity factor.
We cloned a 9.4-kb DNA fragment from Streptomyces scabies ATCC 41973 that allows the nonpathogen Streptomyces lividans 66 TK24 to necrotize and colonize potato tuber slices and produce scab-like symptoms on potato minitubers. Deletion analysis demonstrated that activity was conferred by a 1.6-kb DNA region. Sequence analysis of a 2.4-kb DNA fragment spanning
-
7. Induction of Sp1 in Differentiating Human Embryonal Carcinoma Cells Triggers Transcription of the Fibronectin Gene
Cells of the human embryonal carcinoma line NEC14 proliferate as densely packed clusters consisting of small, polygonal stem cells and do not express a detectable level of fibronectin (FN). Upon induction of differentiation by treatment with N,N′-hexamethylene bisacetamide (HMBA), the level of FN mRNA increased steeply within 24 h and FN began to be accumu
American Society for Microbiology.
-
8. Application of 16S rRNA gene PCR to study bowel flora of preterm infants with and without necrotizing enterocolitis.
The purpose of the present study was to determine the extent to which bacteria not detected by culture contribute to the microbial flora of the bowel of preterm infants with and without neonatal necrotizing enterocolitis (NEC). Fecal samples from 32 preterm infants in special care baby units including samples from 10 infants with NEC were examined by culture
-
9. A Novel Extended-Spectrum TEM-Type β-Lactamase (TEM-52) Associated with Decreased Susceptibility to Moxalactam in Klebsiella pneumoniae
Klebsiella pneumoniae NEM865 was isolated from the culture of a stool sample from a patient previously treated with ceftazidime (CAZ). Analysis of this strain by the disk diffusion test revealed synergies between amoxicillin-clavulanate (AMX-CA) and CAZ, AMX-CA and cefotaxime (CTX), AMX-CA and aztreonam (ATM), and more surprisingly, AMX-CA and moxalactam (MO
American Society for Microbiology.
-
10. Isolation and Identification of Actinobacteria from Surface-Sterilized Wheat Roots
This is the first report of filamentous actinobacteria isolated from surface-sterilized root tissues of healthy wheat plants (Triticum aestivum L.). Wheat roots from a range of sites across South Australia were used as the source material for the isolation of the endophytic actinobacteria. Roots were surface-sterilized by using ethanol and sodium hypochlorit
American Society for Microbiology.
-
11. Inflammation in the developing human intestine: A possible pathophysiologic contribution to necrotizing enterocolitis
Necrotizing enterocolitis (NEC), a major cause of morbidity and mortality in premature infants, occurs after the introduction of oral feedings in conjunction with initial bacterial colonization of the gut and is hypothesized to be due to an immature (inappropriate) enterocyte response to bacterial stimuli. To test this hypothesis, we compared the enterocyte
The National Academy of Sciences.