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Registros recuperados: 9
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AgNO3: a potential regulator of ethylene activity and plant growth modulator Electron. J. Biotechnol.
Kumar,Vinod; Parvatam,Giridhar; Ravishankar,Gokare Aswathanarayana.
The aim of this review is to critically analyze the role of silver nitrate (AgNO3) in modulating plant growth and development. In recent years, basic studies on ethylene regulation opened new vistas for applied research in the area of micro-propagation, somatic embryogenesis, in vitro flowering, growth promotion, fruit ripening, and sex expression. Silver nitrate has proved to be a very potent inhibitor of ethylene action and is widely used in plant tissue culture. Few properties of silver nitrate such as easy availability, solubility in water, specificity and stability make it very useful for various applications in exploiting plant growth regulation and morphogenesis in vivo and in vitro. Silver ion mediated responses seem to be involved in polyamines,...
Tipo: Journal article Palavras-chave: Calcium; Ethylene; Morphogenesis; Polyamines; Silver nitrate; Somatic embryogenesis.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200008
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Arginine metabolism in uricotelic species - doi: 10.4025/actascianimsci.v32i4.10990 Animal Sciences
Fernandes, Jovanir Inês Müller; Universidade Federal do Paraná; Murakami, Alice Eiko; UEM.
Due to the lack of a complete urea cycle, uricotelic species, such as broilers, are not able to synthesize de novo arginine (Arg), thus depending exclusively on dietary Arg. High levels of dietary lysine (Lys) increase the demand for Arg because of the antagonistic relationship between these amino acids. The Arg-Lys antagonism promotes an expressive increase in the renal Arg activity and consequently induces the degradation of Arg and the decrease in the activity of glycine amidinotransferase, an enzyme that uses Arg in the synthesis of muscle creatin. Arg is considered an important modulator of immunological and physiological processes. The degradation of Arg produces ornithine, a precursor of polyamines that are key to cell division, DNA synthesis, and...
Palavras-chave: Carbamoyl phosphatase synthetase; Creatine; Immune system; Nitric oxide; Polyamines; Urea cycle carbamoyl phosphatase synthetase; Creatine; Immune system; Nitric oxide; Polyamines; Urea cycle.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10990
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Citocinina, piraclostrobina e putrescina: influência no desenvolvimento de mudas em três cultivares de videira em diferentes ambientes. Repositório Alice
CAMARGO, R. B..
Resumo: Este trabalho objetivou estudar a produção de mudas dos cultivares Niagara Rosada no ambiente de Botucatu, SP, Isabel Precoce e Thompson Seedless sobre o porta-enxerto?IAC 766?, nos ambientes de Petrolina, PE e Juazeiro, BA utilizando-se reguladores vegetais,poliaminas e citocininas (CK), e fungicida (piraclostrobina). Para tanto, o experimento foi dividido em três etapas: o primeiro, instaladoem viveiro telado na FCAUNESP, Botucatu ? SP de agosto a outubro de 2013 com o cv. Niagara Rosada. O delineamento experimental foi inteiramente casualizado, com oito tratamentos e cinco repetições. O segundo experimento foiconduzido em ambiente protegido (casa de vegetação) na Embrapa Semiárido ? Petrolina, PE de setembro a novembro de 2014 em esquema...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Poliaminas; 6-benzilaminopurina; Estrobirulinas; Efeito fisiológico; Crescimento vegetativo; Interação genótipo x ambiente; Crescimento; Polyamines; Benzyladenine; Vegetative growth; Physiological response; Genotype-environment interaction.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1065420
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Cytokinin, pyraclostrobin, and putrescine: influence on seedling development of three grape cultivars in different environments. Repositório Alice
CAMARGO, R. B.; ONO, E. O.; QUEIROZ, M. A.; BARBOSA, M. A. G.; RODRIGUES, J. D..
The work aimed at evaluating the production of ?Niagara Rosada? seedlings in an environment located at Botucatu, SP, Brazil, and ?Isabel Precoce? and ?Thompson Seedless? seedlings onto the rootstock ?IAC 766? in environments located at Petrolina (PE) and Juazeiro (BA), Brazil, using polyamines and cytokinins, and fungicide (pyraclostrobin).
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Vitis vinifera; Poliaminas; Citocininas; Fungicida; Porta enxerto; Niagara Rosada; Isabel Precoce; Thompson Seedless; Variedade; Uva; Polyamines; 6-benzylaminopurine; Strobilurins; Physiological effect; Environment interaction; Grapes.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077741
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Exogenous Application of Polyamines Improves Germination and Early Seedling Growth of Hot Pepper Chilean J. Agric. Res.
Aziz Khan,Hammad; Ziaf,Khurram; Amjad,Muhammad; Iqbal,Qumer.
Polyamines are low molecular weight organic compounds involved in diverse range of biological processes in all living organisms. Seed priming is a technique that improves seed performance by rapid and uniform germination with normal and vigorous seedlings. A laboratory study was performed to explore the benefits of seed priming with polyamines on seed germination and seedling growth of hot pepper (Capsicum annuum L.) Hot pepper seeds were primed in aerated solution of putrescine, spermine, or spermidine (25, 50, 75, and 100 mM) for 48 h at 25 ± 2 °C. Significant results (P < 0.05) were observed for different attributes of seed germination and early seedling growth. Polyamines priming resulted in earlier and synchronized germination via improving final...
Tipo: Journal article Palavras-chave: Seed priming; Capsicum annuum; Polyamines.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300018
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HPLC profiles of polyamines in the leaves and anthers of a new thermosensitive genic male sterile rice line International Rice Research Institute
Vijayalakshmi, D.; Bangarusamy, U..
p.12-13
Palavras-chave: Male sterility; Cadaverine; Polyamines; Putrescine; Spermidine; Panicles; Leaves; Chemical composition; Plant composition.
Ano: 2004 URL: http://hdl.handle.net/123456789/925
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Influence of dietary live yeast on European sea bass (Dicentrarchus labrax) larval development ArchiMer
Tovar Ramirez, Dariel; Zambonino-infante, Jose-luis; Cahu, Chantal; Gatesoupe, Joel; Vazquez Juarez, R.
Recent results have demonstrated that live yeast in diets improved gut maturation in sea bass larvae. In this study, we tested the absence and two levels of live yeast in sea bass larvae diets. Specimens were fed from time of mouth opening to 37 days after hatching a diet of 0%, 1.1%, or 5.7% wet weight of live yeast (Debaryomyces hansenii CBS 8339). Yeast incorporation improved survival 10%, and reduced malformed larvae. In groups fed 1.1% yeast, only 1% of larvae were malformed, compared to 14% in the control group. Final mean weight in groups fed 1.1% yeast was twice that of other groups. Activities and concentrations of mRNA trypsin and lipase were higher in the two groups fed yeast than in the control group, whereas activity and concentration of mRNA...
Tipo: Text Palavras-chave: Polyamines; Lipase; Trypsin; Amylase; Enzymes; Gut maturation; Fish larvae.
Ano: 2004 URL: https://archimer.ifremer.fr/doc/2004/publication-831.pdf
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Phenolic compound production and biological activities from in vitro regenerated plants of gherkin (Cucumis anguria L.) Electron. J. Biotechnol.
Thiruvengadam,Muthu; Chung,Ill-Min.
Background The effect of polyamines (PAs) along with cytokinins (TDZ and BAP) and auxin (IBA) was induced by the multiple shoot regeneration from leaf explants of gherkin (Cucumis anguria L.). The polyphenolic content, antioxidant and antibacterial potential were studied from in vitro regenerated and in vivo plants. Results Murashige and Skoog (MS) medium supplemented with 3% sucrose containing a combination of 3.0 µM TDZ, 1.0 µM IBA and 75 µM spermidine induced maximum number of shoots (45 shoots per explant) was achieved. Regenerated shoots elongated in shoot elongation medium containing 1.5 µM GA3 and 50 µM spermine. The well-developed shoots were transferred to root induction medium containing 1.0 µM IBA and 50 µM putrescine. Rooted plants were...
Tipo: Journal article Palavras-chave: Biological activities; Cucumis anguria; Multiple shoot induction; Plant growth regulators; Polyamines; Polyphenolic content.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000400007
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Potentiel probiotique de levures productrices des polyamines dans le développement du système digestif du bar Dicentrarchus labrax et de la cabrilla arenera Paralabrax maculatofasciatus ArchiMer
Tovar, Dariel.
The interest in probiotics for aquaculture is increasing rapidly. In the present work we evaluated the potential of some yeast to induce the larvae gut maturation in sea bass larvae Dicentrarchus labrax. The production of polyamines putrescine, spermidine and spermine was quantified in ten yeast strains using high performance liquid chromatography (HPLC). Afterwards, fluorescently labelled yeast adhesion to the intestine of sea bass larvae and the spotted sand bass (Paralabrax maculatofasciatus) was evaluated by fluorescent microscopy. Two of them, CBS 8339 strain (Debaryomyces hansenii) and X2180 strain (Saccharomyces cerevisiae) produce the polyamines of our interest. The same strains showed the best adhering capabilities to the sea bass and spotted sand...
Tipo: Text Palavras-chave: Ontogeny; Digestive enzymes; Fish larvae; Polyamines; Probiotics; Ontogénèse; Enzymes digestives; Larves de poisson; Polyamines; Probiotiques.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/these-103.pdf
Registros recuperados: 9
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