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Bioreactors in coffee micropropagation Braz. J. Plant Physiol.
Etienne,Hervé; Dechamp,E; Barry-Etienne,D; Bertrand,Bernóit.
In coffee, bioreactors are the most promising way for scaling-up micropropagation processes, particularly somatic embryogenesis. The availability of an efficient somatic embryogenesis process would allow the rapid mass production of heterozygous materials such as selected Coffea canephora clones and F1 Arabica hybrid varieties. For the last fifteen years, bioreactors (mechanically or pneumatically agitated bioreactors, temporary immersion bioreactors) have mostly been used on coffee to optimize the mass regeneration of somatic embryos from embryogenic tissues. This review presents the main results, obtained with several bioreactor models, concerning the different steps of the micropropagation process : i) the multiplication of embryogenic tissues, ii) the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffea; Breeding; Liquid medium; Mass propagation; Somatic embryogenesis; Temporary immersion.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100005
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Cattleya walkeriana growth in different micropropagation systems Ciência Rural
Moreira,André Luís; Silva,Adriano Bortolotti da; Santos,Aline; Reis,Caroline Oliveira dos; Landgraf,Paulo Roberto Correa.
The aim of the present research was to verify the in vitro growth of orchids in different systems of micropropagation, being cultivated in a bioreactor, with natural ventilation and conventional systems. Cattleya walkeriana plants were obtained from the germination of seeds in culture medium. After 8 months, seedlings with 1 cm of length were placed in a culture vessel according to the treatments, which counted with two micropropagation systems (conventional and natural ventilation) in three media of culture (liquid, solid with 5 or 6g L-1 of agar). Two additional treatments in bioreactor of temporary and continuous immersion were performed. The design was entirely randomized (ERD), consisting of a 2x3 factorial with two additional treatments, totaling 8...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioreactor; Temporary immersion; Liquid medium; Natural ventilation; In vitro culture.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001000012
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Evaluation of the biodegradation of different types of lubricant oils in liquid medium BABT
Lopes,Paulo Renato Matos; Bidoia,Ederio Dino.
The aim of this work was to study the biodegradation of different types of automotive lubricant oils adapted to the aqueous medium using a base inoculum and an aqueous inoculum. Four treatments were carried out in two consecutive and similar experiments: T1 (control); T2 (half-synthetic oil); T3 (mineral oil); T4 (used oil). The results showed the following decreasing order of CO2 production in the Bartha and Pramer respirometers: T4 > T2 > T3 > T1. Thus, the used lubricant oil showed with highest biodegradability, followed by the half-synthetic one and the mineral oil. It was also observed that the mineral lubricant presented a longer period of adaptation compared to the half-synthetic one.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Lubricant oil; Respirometry; Liquid medium.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500028
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Regeneration of soybean via embryogenic suspension culture Scientia Agricola
Droste,Annette; Leite,Paulo César Pimentel; Pasquali,Giancarlo; Mundstock,Elsa Cristina de; Bodanese-Zanettini,Maria Helena.
In an attempt to establish an alternative plant regeneration system for soybean [Glycine max (L.) Merrill] cultivars used in Brazilian breeding programs, ten genotypes were tested for their embryogenic potential. Cotyledons were removed as explants from immature seeds harvested from field-grown plants. After 45 days on induction medium, the number of responding cotyledons and the number of somatic embryos per immature cotyledon were evaluated. The percentage of explants that produced somatic embryos varied from 1 to 70% among cultivars. The average number of somatic embryos produced per cotyledon pair ranged from 0.01 to 10.3 with a mean of 3.4. Suspension cultures were initiated with three Agrobacterium tumefaciens susceptible cultivars. Suspensions were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Somatic embryogenesis; Liquid medium; Plant tissue culture.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000400017
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Temporary immersion biorreators: efficient technique for the propagation of the ‘Pircinque’ strawberry Rev. Bras. Frutic.
Camargo,Samila Silva; Rufato,Leo; Magro,Maicon; Souza,André Luiz Kulkamp de.
Abstract The in vitro propagation technique via temporary immersion bioreactors is a tool that, through the culture in a liquid medium, allows an increase in the efficiency of seedling production. Several researches with the strawberry crop have shown greater efficiency of the system compared to the conventional process of micropropagation in solid medium. In this sense, the objective herein was to establish a protocol of multiplication and rooting of the ‘Pircinque’ strawberry, in temporary immersion bioreactors. Two distinct and independent studies were carried out, characterized by the multiplication and rooting stages of strawberry explants, newly introduced and registered in Brazil. Two culture media (MS and KNOP) were studied and, as a control...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fragaria Ananassa; Micropropagation; Automation; Liquid medium.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000101001
Registros recuperados: 5
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