Results: 52

Effect of cytokinin types, concentrations and their interactions on in vitro shoot regeneration of Chlorophytum borivilianum Sant. & Fernandez

Electron. j. biotechnol; 17 (6), 2014
Background Chlorophytum borivilianum is a rare medicinal plant originally distributed throughout the forest of India. The tubers of C. borivilianum are used as an aphrodisiac and impotence supplement. The propagation of C. borivilianum is possible through seeds and tubers, but conventional methods may ta...

Molecular cloning and expression analysis of the MaASR1 gene in banana and functional characterization under salt stress

Electron. j. biotechnol; 17 (6), 2014
Background Abscisic acid (ABA)-, stress- and ripening-induced protein (ASR) is plant-specific hydrophilic transcriptional regulators involved in sucrose stress and wounding in banana. However, it is not known whether banana ASR genes confer salt stress tolerance. The contexts of the study was to analysis...

Desenvolvimento de plantas de soja em função de bioestimulantes em condições de adubação fosfatada

Biosci. j. (Online); 30 (4), 2014
Um experimento foi instalado em condições de baixa e alta dose de fósforo com o objetivo de avaliar a ação de produtos bioestimulantes no desempenho agronômico de plantas de soja. Os tratamentos foram constituídos por três bioestimulantes (BU-RG, BU-EC e BU-VG) utilizados de forma isolada e em di...

Callus culture development of two varieties of Tagetes erecta and carotenoid production

Electron. j. biotechnol; 17 (3), 2014
Background The properties of natural pigments, such as antioxidants, functional, medical, and nutraceutical, have demonstrated the advantages of these natural compounds over synthetic ones. Some products are accepted only when they are pigmented with natural, food-quality colorants: for example poultry p...

Giberelina, citocinina e auxina na qualidade química de bagas de uva ‘Superior Seedless’

Biosci. j. (Online); 29 (6), 2013
Os experimentos foram conduzidos no município de Juazeiro/BA com a finalidade de avaliar o efeito de reguladores vegetais compostos por giberelina, citocinina e auxina na qualidade química de bagas de uva do cultivar Superior Seedless. No primeiro ensaio estudaram-se os efeitos de Stimulate (biorreg...

Efeito de diferentes reguladores de crescimento na regeneração in vitro de pau-rosa (Aniba rosaeodora Ducke)

Acta amaz; 40 (2), 2010
O objetivo deste trabalho foi estabelecer um protocolo para a regeneração in vitro de pau-rosa (Aniba rosaeodora Ducke), utilizando brotações apicais e segmentos nodais inoculados em meio de cultura com distintas concentrações de diferentes reguladores de crescimento. Explantes esterilizados com so...

Influence of 2, 4-D and BAP on callus growth and the subsequent regeneration of somatic embryos in long-term cultures of Pelargonium x domesticum cv. Madame Layal

Electron. j. biotechnol; 10 (1), 2007
This long-term study demonstrates for the first time that it is possible to propagate embryogenic cultures in pelargoniums and to subsequently initiate the differentiation of embryos using the cultivar Madame Layal (Pelargonium x domesticum). Propagation of callus was only possible with combinations of 2...

Organogenesis from leaf and internode explants of Ophiorrhiza prostrata, an anticancer drug (camptothecin) producing plant

Electron. j. biotechnol; 10 (1), 2007
Camptothecin (CPT) analogues and derivatives serve as a novel class of effective anticancer agents that exert their action against DNA topoisomerase I. This paper presents procedures for the rapid, high frequency regeneration of a camptothecin producing plant, Ophiorrhiza prostrata D. Don from leaf and i...

Elicitation of peroxidase activity in genetically transformed root cultures of Beta vulgaris L

Genetically transformed roots of red beet produce copious levels of peroxidase (POD) - a multifunctional enzyme with a number of commercial applications. In an effort to elicit the POD activity, the cultures were treated with biotic elicitors such as dry cell powders of microbial cultures (0.1-0.5 percen...

Bioactivity of Scytonema hofmanni (Cyanobacteria) in Lilium alexandrae in vitro propagation

Cyanobacteria produces bioactive compounds including plant growth regulators. Naphthalene acetic acid (NAA), a toxic substance, is a synthetic plant regulator used in micropropagation. The aim of this work was to evaluate morphogenetic and antioxidant effects produced by intra and extracellular substance...