Consulta: subjectFacets:"Biological characteristics"
Registros recuperados: 5
Data/hora: 06/06/2024 06:31:24

Active anti-acetylcholinesterase component of secondary metabolites produced by the endophytic fungi of Huperzia serrata
Provedor de dados: 69
Autores: Wang,Zhejian; Ma,Zhao; Wang,Lili; Tang,Chengchen; Hu,Zhibi; Chou,GuiXin; Li,Wankui.
Background An endophytic fungus lives within a healthy plant during certain stages of, or throughout, its life cycle. Endophytic fungi do not always cause plant disease, and they include fungi that yield different effects, including mutual benefit, and neutral and pathogenic effects. Endophytic fungi promote plant growth, improve the host plant's resistance to biotic and abiotic stresses, and can produce the same or similar biologically active substances as the host. Thus, endophytic fungal products have important implications in drug development. Result Among the numerous endophytic fungi, we identified two strains, L10Q37 and LQ2F02, that have anti-acetylcholinesterase activity, but the active compound was not huperzine A. The aim of this study was to...
Tipo: Journal article
Palavras-chave: Anti-acetylcholinesterase activity; Acetylcholinesterase inhibitor; Biological characteristics; Endophytic fungi.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000600003

Les stocks de poissons démersaux sous quota  en Manche Est et mer du Nord
Provedor de dados: 5
Autores: Mellon, Capucine.
Cod (Gadus morhua, L.), whiting (Merlangius merlangus, L.), saithe (Pollachius virens, L.), haddock (Melanogrammus aeglefinus, L.), sole (Solea vulgaris, L.) and plaice (Pleuronectes platessa, L.) make up the main demersal stocks under quota which concern the French fishery in North Sea and Eastern English Channel. The diagnosis on the state of stocks are set up at the International Council for the Exploration of the Sea (ICES). Recommendations which result from the analyses are proposed to the European Union. Most of the stocks are close or outside their safe biological limits. Several reasons account for that such as the high fishing mortality rates and mixed fisheries on species with diverse biological characteristics. Consequently, more and more young...
Tipo: Text
Palavras-chave: Demersal stocks; ANE; North Sea; Eastern English Channel; Mixed fishery; Biological characteristics; Landings; Stock assessment.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00447/55905/57907.pdf

A new Neotropical species of Liothrips (Thysanoptera: Phlaeothripidae) associated with Ludwigia (Myrtales:Onagraceae)
Provedor de dados: 99
Autores: Zamar,María I.; Hernández,María C.; Soto-Rodríguez,Gerardo A.; Retana-Salazar,Axel P.
Liothrips ludwigi (Thysanoptera: Phlaeothripidae) is described and a key to differentiate it from the other four species present in Argentina is provided. This species can be distinguished by the following characters: major setae on head and pronotum slender and brown yellowish; anteromarginal setae short (14µ-21µ), and metanotum reticulated with hexagonal cells. Liothrips ludwigi feeds and reproduces on Ludwigia grandiflora (Michx.) Greuter &amp;amp; Burdet and L. grandiflora ssp. hexapetala (Hook. &amp;amp; Arn.) G.L. Nesom &amp;amp; Kartesz (Myrtales: Onagraceae). This is the first record of the association between Liothrips and this family of plants.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Biological characteristics; Damage; Biological control; Thrips.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802013000100008

Cultivation and Biological Characterization of Chicken Primordial Germ Cells
Provedor de dados: 52
Autores: Ji,Meng; Guan,Wei-jun; Gao,Yu-hua; Li,Lu; Bai,Chun-yu; Ma,Yue-hui; Li,Xiang-chen.
The purpose of this work was to investigate the isolation, culture process of chicken gonadal primordial germ cells (PGCs) and study their biological characterization. PGCs were harvested from 5.5-day-old chicken embryonic genital ridges and explanted onto chicken embryonic fibroblasts (CEFs). The results showed that the primary cultivation of chicken PGCs on their own gonadal stroma cells were better than CEFs at first two days for reproduction. The conditioned media supported the growth and colony formation of PGCs for a prolonged time in vitro and maintained a normal diploid karyotype, which were positively stained by alkaline phosphatase (AKP), periodic acid Schiff (PAS) and reacted with anti-SSEA-1, SSEA-3, Oct4, Blimp1 and Sox2. Real-time PCR showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chicken; Primordial germ cells; Biological characteristics; In vitro.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100401

Molecular typing and biological characteristics of Pseudomonas aeruginosa isolated from cystic fibrosis patients in Brazil
Provedor de dados: 55
Autores: Stehling,Eliana Guedes; Leite,Domingos S; Silveira,Wanderley D.
The present study had as objective to evaluate the genotypic diversity and biological characteristics, such as hemolysin, protease, elastase of 56 clinical strains of Pseudomonas aeruginosa isolated from 13 cystic fibrosis (CF) patients attending at the School Hospital of Campinas State University (UNICAMP), Brazil. Genotypic diversity has been determined by Ribotyping (RT) and the pattern of the enterobacterial repetitive intergenic consensus PCR (ERIC-PCR) of each strain. The production of elastase was significantly different only among mucoid and nonmucoid isolates. Joint results obtained by (RT) and ERIC-PCR methods were able to discriminate all strains isolated from both the same and different patients. Additionally, we observed four strain clusters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cystic fibrosis; Pseudomonas aeruginosa; Clonal analysis; Biological characteristics.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000500007