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Sayfa 1 itibaren 63 Sonuçlar
Deep sequencing analysis reveals a TMV mutant with a poly(A) tract reduces host defense responses in Nicotiana benthamiana.
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Tobacco mosaic virus (TMV) possesses an upstream pseudoknotted domain (UPD), which is important for replication. After substituting the UPD with an internal poly(A) tract (43 nt), a mutant TMV-43A was constructed. TMV-43A replicated slower than TMV and induced a non-lethal mosaic symptom in
Isolation and characterisation of tobacco (Nicotiana tabacum) cDNA clones encoding proteins involved in magnesium chelation into protoporphyrin IX.
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We have identified cDNA clones encoding the two Mg chelatase subunits CHL I and CHL H from tobacco (Nicotiana tabacum) by screening a cDNA library with homologous cDNA fragments from Arabidopsis thaliana. A full-length Chl I cDNA clone encodes a peptide with 426 amino acids. The entire cDNA sequence
Expression of the [beta]-Glucuronidase Gene in Pollen of Lily (Lilium longiflorum), Tobacco (Nicotiana tabacum), Nicotiana rustica, and Peony (Paeonia lactiflora) by Particle Bombardment.
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A [beta]-glucuronidase (GUS) gene that is under the control of the anther-specific LAT52 promoter of tomato (Lycopersicon esculentum) and the nopaline synthetase polyadenylation terminator was successfully expressed in pollen of Lilium longiflorum, Nicotiana tabacum, Nicotiana rustica, and Paeonia
The effect of benzoic acid derivatives on Nicotiana tabacum growth in relation to PR-b1 production.
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Using HPLC quantification, we have shown that benzoic acid derivatives stimulate PR-b1 protein synthesis in the leaf discs of Nicotiana tabacum Xanthi nc. The stimulation of PR-b protein synthesis during treatment with several benzoic acid derivatives is described for the first time in the root
The tobacco ubiquitin-activating enzymes NtE1A and NtE1B are induced by tobacco mosaic virus, wounding and stress hormones.
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Recent characterization of several genes involved in plant defense responses suggested that ubiquitin-mediated protein degradation has a role in these responses. We isolated two cDNAs (NtUBA1 and NtUBA2) encoding ubiquitin-activating enzyme (E1) from Nicotiana tabacum cv. BY-2. The open reading
Ethanol-resistant mutants of Nicotiana plumbaginifolia are deficient in the expression of pollen and seed alcohol dehydrogenase activity.
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Six independent mutant lines of Nicotiana plumbaginifolia resistant to ethanol, designated E3, E8, E101, E112, E144 and E251, were isolated as germinating seedlings on selective medium. In all cases, resistance to ethanol was conferred by a single recessive nuclear mutation at the same locus. Mutant
RNA viruses and their silencing suppressors boost Abutilon mosaic virus, but not the Old World Tomato yellow leaf curl Sardinia virus.
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Mixed viral infections can induce different changes in symptom development, genome accumulation and tissue tropism. These issues were investigated for two phloem-limited begomoviruses, Abutilon mosaic virus (AbMV) and Tomato yellow leaf curl Sardinia virus (TYLCSV) in Nicotiana benthamiana plants
Extensin gene expression is induced by mechanical stimuli leading to local cell wall strengthening in Nicotiana plumbaginifolia.
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Nicotiana plumbaginifolia Viv. harbors a single extensin gene, although related hydroxyproline-rich sequences are present in the genome. Northern analysis showed that the gene is highly expressed in roots and to a lesser extent in stems. Expression in leaves is low but mRNA levels are increased upon
Nucleotide sequences and functional characterization of two tobacco UAG suppressor tRNA(Gln) isoacceptors and their genes.
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We isolated and sequenced the two major tRNA(Gln) isoacceptors with CUG and UmUG anticodons from the cytoplasm of Nicotiana rustica. These are the first tRNAs(Gln) of nuclear origin characterized in plants. The tRNA(Gln) sequences were used to design probes for the isolation of the corresponding
Potato Virus Y HCPro Suppression of Antiviral Silencing in Nicotiana benthamiana Plants Correlates with Its Ability To Bind In Vivo to 21- and 22-Nucleotide Small RNAs of Viral Sequence.
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We have investigated short and small RNAs (sRNAs) that were bound to a biologically active hexahistidine-tagged Potato virus Y (PVY) HCPro suppressor of silencing, expressed from a heterologous virus vector in Nicotiana benthamiana plants, and purified under nondenaturing conditions. We found that
Further studies on the biology of an antiviral factor (AVF) from virus-infected plants and its association with the N-gene of Nicotiana species.
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The antiviral factor (AVF) from virus-infected plants, purified on polyacrylamide gels, could be labelled with radioactive phosphorus and its activity could be eluted from the gels. The radioactivity and the antiviral activity were co-purified and thus co-electrophoresed; hence, the previously
Response of Membrane-bound Mg-activated ATPase of Tobacco Leaves to Tobacco Mosaic Virus.
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Infectious material was formed at an early stage, and migrated into the mesophyll from the epidermis of tobacco leaves (Nicotiana tabacum cv. Samsun NN) during the period of 1 to 3 hours after inoculation with tobacco mosaic virus (TMV). The activity of membrane-bound Mg(2+)-activated ATPase from
Inhibition of glutamate:glyoxylate aminotransferase activity in tobacco leaves and callus by glycidate, an inhibitor of photorespiration.
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The effect of glycidate (2,3-epoxypropionate), an inhibitor of glycolate synthesis and photorespiration in leaf tissue, was studied on glutamate:glyoxylate and serine:glyoxylate aminotransferases and glycine decarboxylase activities in particulate preparations obtained from tobacco (Nicotiana
A plant small polypeptide is a novel component of DNA-binding protein phosphatase 1-mediated resistance to plum pox virus in Arabidopsis.
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DNA-binding protein phosphatases (DBPs) have been identified as a novel class of plant-specific regulatory factors playing a role in plant-virus interactions. NtDBP1 from tobacco (Nicotiana tabacum) was shown to participate in transcriptional regulation of gene expression in response to virus
The involvement of two epoxide hydrolase genes, NbEH1.1 and NbEH1.2, of Nicotiana benthamiana in the interaction with Colletotrichum destructivum, Colletotrichum orbiculare or Pseudomonas syringae pv. tabaci
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Epoxide hydrolase hydrates epoxides to vicinal diols in the phyto-oxylipin peroxygenase pathway resulting in the production of epoxy alcohols, dihydrodiols, triols and epoxides, including many lipid epoxides associated with resistance. Two epoxide hydrolase genes from Nicotiana benthamiana L.,
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- Görüntüye göre bitki tanıma
- Etkileşimli GPS haritası - bölgedeki bitkileri etiketleyin (yakında)
- Aramanızla ilgili bilimsel yayınları okuyun
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- İlgi alanlarınızı düzenleyin ve haber araştırmaları, klinik denemeler ve patentlerle güncel kalın
Bir belirti veya hastalık yazın ve yardımcı olabilecek bitkiler hakkında bilgi edinin, bir bitki yazın ve karşı kullanıldığı hastalıkları ve semptomları görün.
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