Results: 10

Expression of Pinellia ternata leaf agglutinin under rolC promoter confers resistance against a phytophagous sap sucking aphid, Myzus persicae

BACKGROUND: Piercing/sucking insect pests in the order Hemiptera causes substantial crop losses by removing photoassimilates and transmitting viruses to their host plants. Cloning and heterologous expression of plantderived insect resistance genes is a promising approach to control aphids and other sap-s...

Cloning and heterologous expression of a hydrophobin gene Ltr. hyd from the tiger milk mushroom Lentinus tuber-regium in yeast-like cells of Tremella fuciformis

Background: Hydrophobins are small proteins secreted by filamentous fungi, which show a highly surface activity. Because of the signally self-assembling abilities and surface activities, hydrophobins were considered as candidates in many aspects, for example, stabilizing foams and emulsions in food produ...

Tremor-Ataxia syndrome and primary ovarian insufficiency in an FMR1 premutation carrier

Colomb. med; 48 (3), 2017
Abstract Introduction: The FMR1 gene has four allelic variants according to the number of repeats of the CGG triplet. Premutation carriers with between 55 and 200 repeats are susceptible to developing pathologies such as tremor and ataxia syndrome (FXTAS) and fragile X-associated primary ovarian insuff...

Efficient regeneration and genetic transformation platform applicable to five Musa varieties

Background: Banana (Musa spp.) is an important staple food, economic crop, and nutritional fruit worldwide. Conventional breeding has been seriously hampered by their long generation time, polyploidy, and sterility of most cultivated varieties. Establishment of an efficient regeneration and transformatio...

Stable expression and characterization of a fungal pectinase and bacterial peroxidase genes in tobacco chloroplast

Electron. j. biotechnol; 18 (3), 2015
Background The high capacity of chloroplast genome response to integrate and express transgenes at high levels makes this technology a good option to produce proteins of interest. This report presents the stable expression of Pectin lyase (PelA gene) and the first stable expression of manganese peroxidas...

A novel chloroplastic isopentenyl diphosphate isomerase gene from Jatropha curcas: Cloning, characterization and subcellular localization

Electron. j. biotechnol; 17 (6), 2014
Background Jatropha curcas is a rich reservoir of pharmaceutically active terpenoids. More than 25 terpenoids have been isolated from this plant, and their activities are anti-bacterial, anti-fungal, anti-cancer, insecticidal, rodenticidal, cytotoxic and molluscicidal. But not much is known about the pat...

Detecçäo do provirús da imunodeficiência felina em gatos domésticos pela técnica de reaçäo em cadeia da polimerase
Detection of feline immunodeficiency provirus in domestic cats by polymerase chain reaction

Pesqui. vet. bras; 20 (1), 2000
A infecçäo de gatos domésticos pelo Vírus da Imunodeficiência Felina (FIV) é um dos modelos mais promissores para o estudo da infecçäo pelo vírus da imunodeficiência humana (HIV) que causa a Síndrome de Imunodeficiência Adquirida (AIDS). O FIV causa, em gatos, uma enfermidade similar àquela ...

O papel do metabolismo de ferro no estresse oxidativo em Saccharomyces cerevisiae

A superóxido dismutase (SOD) tem um papel protetor contra toxicidade do oxigênio por remover radicais superóxido (`O IND. 2 POT. -ï) através da sua dismutação para `H IND. 2'`O IND. 2'. Células de levedura apresentam duas SODs intracelulares, uma contendo Cu e Zn e outra Mn em seus sítios ativos...

Papillomavirus in cervicovaginal smears of women infected with human immunodefficiency virus

Säo Paulo med. j; 113 (6), 1995
Tem sido relatado que mulheres infectadas pelo HIV apresentam maior incidência de atipias citológicas nos esfregaços cérvico-vaginais, relacionadas principalmente com a infecçao pelo HPV. MATERIAL E MÉTODOS: O presente trabalho apresenta o estudo de esfregaços cérvico-vaginais de 147 mulheres HIV...