Osmotin
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Identificação e avaliação do efeito anti-inflamatório e antinociceptivo do extrato aquoso de Guadua paniculata
O uso de plantas como medicamento e uma pratica antiga, que e ate hoje preservada por comunidades que fazem uso da chamada medicina tradicional. Nas ultimas decadas, a comunidade cientifica tem demonstrado um crescente interesse por esse conhecimento etnofarmacologico. Interesse esse, direcionado a validar o uso dessas plantas pela populacao como agente tera
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/10/2012
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2. Expression in Escherichia coli, purification, refolding and antifungal activity of an osmotin from Solanum nigrum.
2008
Microbial Cell Factories. Publicado em: 2011
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3. Defence genes in Citrus sunki and Poncirus trifoliata: expression constitutive and induced by Phytophthora parasitica. / Genes de defesa de Citrus sunki e Poncirus trifoliata: expressÃo constitutiva e induzida por Phytophthora parasitica
Citrus gummosis, caused mainly by Phytophthora parasitica, is one of the most important citrus diseases affecting all production phases. The use of genetic resistance is the best strategy for controlling P. parasitica having a lower impact on the environment. A better understanding of the molecular mechanisms involved in the interaction citrus-Phytophthora s
Publicado em: 2005
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4. Characterization of Osmotin 1: A Thaumatin-Like Protein Associated with Osmotic Adaptation in Plant Cells
Cultured tobacco (Nicotiana tabacum var Wisconsin 38) cells adapted to grow under osmotic stress synthesize and accumulate a 26 kilodalton protein (osmotin) which can constitute as much as 12% of total cellular protein. In cells adapted to NaCl, osmotin occurs in two forms: an aqueous soluble form (osmotin-I) and a detergent soluble form (osmotin II) in the
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5. Stress proteins on the yeast cell surface determine resistance to osmotin, a plant antifungal protein
Strains of the yeast Saccharomyces cerevisiae differ in their sensitivities to tobacco osmotin, an antifungal protein of the PR-5 family. However, cells sensitive to tobacco osmotin showed resistance to osmotin-like proteins purified from the plant Atriplex nummularia, indicating a strict specificity between the antifungal protein and its target cell. A memb
The National Academy of Sciences of the USA.
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6. Regulation of the Osmotin Gene Promoter.
By introducing a chimeric gene fusion of the osmotin promoter and [beta]-glucuronidase into tobacco by Agrobacterium-mediated transformation, we have demonstrated a very specific pattern of temporal and spatial regulation of the osmotin promoter during normal plant development and after adaptation to NaCl. We have found that the osmotin promoter has a very h
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7. Plant Defense Genes Are Synergistically Induced by Ethylene and Methyl Jasmonate.
Combinations of ethylene and methyl jasmonate (E/MeJA) synergistically induced members of both groups 1 and 5 of the pathogenesis-related (PR) superfamily of defense genes. E/MeJA caused a synergistic induction of PR-1b and osmotin (PR-5) mRNA accumulation in tobacco seedlings. E/MeJA also synergistically activated the osmotin promoter fused to a [beta]-gluc
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8. Osmotin overexpression in potato delays development of disease symptoms.
Transgenic potato and tobacco plants carrying the osmotin gene under the control of the cauliflower mosaic virus 35S promoter constitutively overexpressed osmotin to a level of approximately 2% of total cellular protein. Leaves of transgenic potato plants exhibited delayed development of disease symptoms after inoculation with spore suspensions of Phytophtho
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9. Activation of two osmotin-like protein genes by abiotic stimuli and fungal pathogen in transgenic potato plants.
Osmotin-like proteins are encoded by at least six members of a multigene family in Solanum commersonii. A genomic clone (lambda pGEM2a-7) that contains two osmotin-like protein genes (OSML13 and OSML81) arranged in the same transcriptional orientation has been isolated. Restriction mapping and sequence analysis indicated that the two intronless genes corresp
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10. Chitinase, beta-1,3-glucanase, osmotin, and extensin are expressed in tobacco explants during flower formation.
Sequence analysis of five gene families that were isolated from tobacco thin cell layer explants initiating floral development [Meeks-Wagner et al. (1989). Plant Cell 1, 25-35] showed that two encode the pathogenesis-related proteins basic chitinase and basic beta-1,3-glucanase, while a third encodes the cell wall protein extensin, which also accumulates dur
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11. Salt Stress Perception and Plant Growth Regulators in the Halophyte Mesembryanthemum crystallinum.
We selected indicators of four different metabolic processes (Crassulacean acid metabolism [CAM], amino acid and nitrogen mobilization metabolism, osmoprotection, and plant defense mechanisms) to study the relationship between salt-stress-mediated and plant growth regulator (PGR)-induced responses in Mesembryanthemum crystallinum (ice plant). Nacl and PGRs (
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12. Pathogen-induced proteins with inhibitory activity toward Phytophthora infestans.
A bioassay using Phytophthora infestans was developed to determine whether inhibitory proteins are induced in pathogen-inoculated plants. Using this bioassay, AP24, a 24-kilodalton protein causing lysis of sporangia and growth inhibition of P. infestans, was purified from tobacco plants inoculated with tobacco mosaic virus. Analysis of the N-terminal amino a