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Registros recuperados: 27
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Efficacy of alternative herbicides to glyphosate in the weed control ín glyphosate and sulfonyiurea-tolerant soybean Acta Agron. (Palmira)
Moreira Silva,André Felipe; Giraldeli,Ana Ligia; Soares da Silva,Gustavo; da Silva Araújo,Lucas; Nogueira Lima,Robson Josadaque; Góes de Oliveira,Diogo Alexandre; Paiola Albrecht,Alfredo Junior; Victoria Filho,Ricardo.
Abstract It is believed that ALS inhibitor herbicides in combination with ACCase inhibitors can be used as an alternative to glyphosate in weed control in RR2/STS soybeans. In the present study, the efficacy of ALS inhibitor herbicides, in combination with haloxyfop, is evaluated in the control of weeds for post- emergence application (V4) of RR/STS soybeans. The experiment is carried out in the 2017/18 season in Piracicaba, Sao Paulo (SP), Brazil. The cultivar BMX Garra RR2/STS is used, and the treatments were composed by the application of ALS inhibitor herbicides in association with haloxyfop. The experimental design was a randomized block with four replications. Were evaluated control and dry mass of weeds, symptoms of injury in soybean plants and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ACCase inhibitors; ALS inhibitors; Glycine max; Herbicides mixture; Transgenic.
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000300292
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Effects of high proline accumulation on chloroplast and mitochondrial ultrastructure and on osmotic adjustment in tobacco plants Agronomy
Borgo, Lucélia; Marur, Celso Jamil; Vieira, Luiz Gonzaga Esteves.
Proline accumulates in many organisms in response to abiotic stresses, such as drought and salinity. Reports have discussed the role of proline in relation to osmotic adjustment, even though no clear-cut evidence has yet been provided demonstrating this association as a defense mechanism against drought stress in plants. However, it has been indicated that the application of exogenous proline can damage the ultrastructure of chloroplasts and mitochondria. In this study, using transgenic tobacco plants carrying a mutant p5cs gene from Vigna aconitifolia under control of the CaMV 35S promoter, we show that the high levels of endogenous proline accumulated in leaves does not contribute to the osmotic adjustment in plants under water deficit conditions....
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.00.00-9 p5cs; Transgenic; Water deficit Melhoramento Vegetal.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19097
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A comparative expression analysis of gene transcripts in brain tissue of non-transgenic and GH-transgenic zebrafish (Danio rerio) using a DDRT-PCR approach Anais da ABC (AABC)
Alves-Costa,Fernanda A.; Figueiredo,Márcio A.; Lanes,Carlos F.C.; Almeida,Daniela V.; Marins,Luis F.; Wasko,Adriane P..
The presence of higher level of exogenous growth hormone (GH) in transgenic animals could lead to several physiological alterations. A GH transgenic zebrafish (Danio rerio) line was compared to nontransgenic (NT) samples of the species through a DDRT-PCR approach, with the goal of identifying candidate differentially expressed transcripts in brain tissues that could be involved in GH overexpression. Densitometric analyses of two selected amplification products, p300 and ADCY2, pointed to a significant lower gene expression in the transgenic zebrafish (104.02 ± 57.71; 224.10 ± 91.73) when compared to NT samples (249.75 ± 30.08; 342.95 ± 65.19). The present data indicate that p300 and ADCY2 are involved in a regulation system for GH when high circulating...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Differential display; GH; Growth hormone; Transgenic; Zebrafish.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200017
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An improved method for transformation of lettuce by Agrobacterium tumefaciens with a gene that confers freezing resistance BABT
Pileggi,Marcos; Pereira,Albanin Aparecida Mielniczki; Silva,Joandrei dos Santos; Pileggi,Sônia Alvim Veiga; Verma,Desh Pal S..
An efficient method for constructing transgenic lettuce cultivars by Agrobacterium tumefaciens was described by Torres et al., 1993. In the present work, an improvement of the above procedure is described and applied to transform the cultivar Grand Rapids with a mutated P5CS gene. The major modifications were concerned with turning more practical the transformation and regeneration protocols. Also we tried to improve transformation steps by increasing injured area in explants and prolonging co-cultivation with Agrobacteria (in larger concentration). A more significant selective pressure was used against non-transformed plants and bacteria. In these work we were concerned to obtain T1 and T2 seeds. The P5CS gene codes for a delta¹-pyrroline-5-carboxylate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stress resistance; Cold resistance; Transgenic; Lettuce; Proline.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200013
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Transgenic animal models for the functional analysis of vasoactive peptides BJMBR
Bader,M..
The interplay of vasoactive peptide systems is an essential determinant of blood pressure regulation in mammals. While the endothelin and the renin-angiotensin systems raise blood pressure by inducing vasoconstriction and sodium retention, the kallikrein-kinin and the natriuretic-peptide systems reduce arterial pressure by eliciting vasodilatation and natriuresis. Transgenic technology has proven to be very useful for the functional analysis of vasoactive peptide systems. As an outstanding example, transgenic rats overexpressing the mouse Ren-2 renin gene in several tissues become extremely hypertensive. Several other transgenic rat and mouse strains with genetic modifications of components of the renin-angiotensin system have been developed in the past...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Renin-angiotensin system; Transgenic; Animal models; Knockout.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900011
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Genetic transformation of coffee Braz. J. Plant Physiol.
Ribas,Alessandra Ferreira; Pereira,Luiz Filipe Protasio; Vieira,Luiz Gonzaga E..
In the last 15 years, considerable advances were made in coffee genetic transformation. Different research groups in the world have been able to transform coffee with genes for insect resistance, decaffeinated coffee, herbicide resistance and control of fruit maturation. Although the majority of the research is still limited to laboratory and greenhouse studies, initial field tests with transformed coffee are beginning to appear in the literature. In this review we provide an update on the state of coffee genetic transformation, presenting technical aspects related to tissue culture systems, strategies for selection and transformation with particle bombardment, as well as the use of Agrobacterium tumefaciens. We also discuss the potential applications of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agrobacterium; Coffea; Biolistic; Genetic engineering; Transgenic.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000100007
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Advances in Apple Transformation Technology to Confer Resistance to Fungal Diseases in Apple Crops: A Chilean Perspective Chilean J. Agric. Res.
Polanco,Víctor; Paredes,Mario; Becerra,Viviana; Pérez,Eduardo.
Apple (Malus domestica Borkh.) is one of the most consumed fruit in the world. Genetic transformation is a key process to sustain this demand by permitting the potential enhancement of existing cultivars as well as the development of new cultivars resistant to pests, diseases, and storage problems that occur in the major production areas. This review summarizes the advances of genetic engineering applied to the development of resistant apple cultivars to fungus disease, with particular attention in the generation of apples resistant to Venturia inaequalis (Cooke) G.Winter, the main phytosanitary problem that affects apple crops in Chile.
Tipo: Journal article Palavras-chave: Apple; Fungal disease; Transgenic; Cisgenesis.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000200013
Registros recuperados: 27
Primeira ... 12 ... Última
 

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