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Página 1 a partir de 32 resultados
[Natural infection of strawberry plants (Fragaria sp.) by tobacco mosaic virus].
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Engineering the anthocyanin regulatory complex of strawberry (Fragaria vesca).
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The woodland strawberry, Fragaria vesca is a model fruit for a number of rosaceous crops. We have engineered altered concentrations of anthocyanin in F. vesca, to determine the impact on plant growth and fruit quality. Anthocyanin concentrations were significantly increased by over-expression or
Characterization and Functional Analysis of Calmodulin and Calmodulin-Like Genes in Fragaria vesca.
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Calcium is a universal messenger that is involved in the modulation of diverse developmental and adaptive processes in response to various stimuli. Calmodulin (CaM) and calmodulin-like (CML) proteins are major calcium sensors in all eukaryotes, and they have been extensively investigated for many
First Report of Blossom Blight of Strawberry (Fragaria × ananassa) Caused by Pseudomonas marginalis.
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In 2003, a new disease was observed on commercial strawberries (Fragaria × ananassa Duch.) grown in multiple fields in Watsonville, CA. Initial symptoms consisted of brown lesions on the undersides of the sepals of strawberry flowers. The lesions coalesced and spread to upper sepal surfaces and
Increased accumulation of anthocyanins in Fragaria chiloensis fruits by transient suppression of FcMYB1 gene.
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Anthocyanins and proanthocyanidins (PAs), flavonoid-derived metabolites with different physiological roles, are produced by plants in a coordinated manner during fruit development by the action of transcription factors (TFs). These regulatory proteins have either an activating or repressing effect
Partial demethylation of oligogalacturonides by pectin methyl esterase 1 is required for eliciting defence responses in wild strawberry (Fragaria vesca).
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In addition to the role of the cell wall as a physical barrier against pathogens, some of its constituents, such as pectin-derived oligogalacturonides (OGA), are essential components for elicitation of defence responses. To investigate how modifications of pectin alter defence responses, we
Implementing reverse genetics in Rosaceae: analysis of T-DNA flanking sequences of insertional mutant lines in the diploid strawberry, Fragaria vesca.
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Reverse genetics is used for functional genomics research in model plants. To establish a model system for the systematic reverse genetics research in the Rosaceae family, we analyzed genomic DNA flanking the T-DNA insertions in 191 transgenic plants of the diploid strawberry, Fragaria vesca. One
Strawberry necrotic shock virus is a distinct virus and not a strain of Tobacco streak virus.
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Fragaria (strawberry) and Rubus species (blackberry, wild blackberry, red raspberry and black raspberry) were thought to be infected with distinct isolates of Tobacco streak virus (TSV). Employing serology and nucleic acid hybridization it has been shown that these isolates form a cluster distinct
Isolation of tobacco necrosis virus from strawberry leaves in the Czech Republic.
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Leaves of symptomless Fragaria ananassa Duch cv. Cacanská raná were grafted onto Fragaria vesca indicator clones. Thirty-five of 72 grafted indicator plants developed leaf mottle symptoms. Isometric virus-like particles were observed in purified preparations from symptomatic leaves of F. vesca. The
TRV-GFP: a modified Tobacco rattle virus vector for efficient and visualizable analysis of gene function.
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Virus-induced gene silencing (VIGS) is a useful tool for functional characterization of genes in plants. Unfortunately, the efficiency of infection by Tobacco rattle virus (TRV) is relatively low for some non-Solanaceae plants, which are economically important, such as rose (Rosa sp.). Here, to
First Report of Tobacco streak virus in Strawberry in the Eastern United States.
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In a 1998 virus survey (2) conducted on 23 commercial strawberry (Fragaria × ananassa Duchesne) production farms in the state of Maryland, leaf samples from 1,100 randomly sampled plants were sent to the U.S. Department of Agriculture laboratory in Corvallis, OR, for testing by enzyme-linked
Isolation and diversity analysis of resistance gene analogues (RGAs) from cultivated and wild strawberries.
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Degenerate oligonucleotide primers, designed based on conserved regions of Nucleotide Binding Site (NBS) domains from previously cloned plant resistance genes, were used to isolate Resistance Gene Analogues (RGAs) from wild and cultivated strawberries. Seven distinct families of RGAs of the NBS-LRR
Molecular interaction between Methylobacterium extorquens and seedlings: growth promotion, methanol consumption, and localization of the methanol emission site.
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Four Methylobacterium extorquens strains were isolated from strawberry (Fragaria x ananassa cv. Elsanta) leaves, and one strain, called ME4, was tested for its ability to promote the growth of various plant seedlings. Seedling weight and shoot length of Nicotiana tabacum, Lycopersicon esculentum,
Genomic sequences of blackberry chlorotic ringspot virus and strawberry necrotic shock virus and the phylogeny of viruses in subgroup 1 of the genus Ilarvirus.
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Three members of subgroup 1 of the genus Ilarvirus: blackberry chlorotic ringspot (BCRV), strawberry necrotic shock (SNSV), and tobacco streak viruses (TSV), may infect Rubus and Fragaria species. All cause symptoms similar to those previously attributed to infection by TSV alone. Although
The defH9-iaaM auxin-synthesizing gene increases plant fecundity and fruit production in strawberry and raspberry.
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BACKGROUND
The DefH9-iaaM gene fusion which is expressed specifically in placenta/ovules and promotes auxin-synthesis confers parthenocarpic fruit development to eggplant, tomato and tobacco. Transgenic DefH9-iaaM eggplants and tomatoes show increased fruit production due mainly to an improved fruit
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* Todas as informações são baseadas em pesquisas científicas publicadas
