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olea/− nicotine

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The complete genome sequence of a new necrovirus isolated from Olea europaea L.

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The complete nucleotide sequence of a virus isolated from Olea europaea L. (GP isolate), previously identified as an isolate of Tobacco necrosis virus D (TNV-D) based on its coat protein sequence, was determined. The viral RNA genome consists of 3683 nucleotides and contains five open reading

A Tobacco necrosis virus D isolate from Olea europaea L.: viral characterization and coat protein sequence analysis.

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A virus isolated from Olea europaea L. grown in Portugal, was identified as a member of the species Tobacco necrosis virus D (TNV-D, genus Necrovirus, family Tombusviridae), based on the molecular and serological properties of the purified virus particles. The genomic region encoding the coat

Overexpression of Ks-type dehydrins gene OeSRC1 from Olea europaea increases salt and drought tolerance in tobacco plants.

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Agricultural production is greatly affected by environmental stresses, such as cold, drought and high-salinity. It is possible to produce tolerant genotypes by transferring genes encoding protective proteins or enzymes from other organisms. In this regard, the current study was aimed to clone a

A lipoxygenase with dual positional specificity is expressed in olives (Olea europaea L.) during ripening.

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Plant lipoxygenases (LOXs) are a class of widespread dioxygenases catalysing the hydroperoxidation of polyunsaturated fatty acids. Although multiple isoforms of LOX have been detected in a wide range of plants, their physiological roles remain to be clarified. With the aim to clarify the occurrence

Overexpression of the olive acyl carrier protein gene (OeACP1) produces alterations in fatty acid composition of tobacco leaves.

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Taking into account that fatty acid (FA) biosynthesis plays a crucial role in lipid accumulation in olive (Olea europaea L.) mesocarp, we investigated the effect of olive acyl carrier protein (ACP) on FA composition by overexpressing an olive ACP cDNA in tobacco plants. The OeACP1.1A cDNA was
The genetic variability among 13 isolates of Olive mild mosaic virus (OMMV) and of 11 isolates of Tobacco necrosis virus D (TNV-D) recovered from Olea europaea L. samples from various sites in Portugal, was assessed through the analysis of the coat protein (CP) gene sequences. This gene was

Virus-Induced Gene Silencing in Olive Tree (Oleaceae)

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Research on gene functions in non-model tree species is hampered by a number of difficulties such as time-consuming genetic transformation protocols and extended period for the production of healthy transformed offspring, among others. Virus-induced gene silencing (VIGS) is an alternative approach

Antifungal potency and modes of action of a novel olive tree defensin against closely related ascomycete fungal pathogens.

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Antimicrobial peptides play a pivotal role in the innate immunity of plants. Defensins are cysteine-rich antifungal peptides with multiple modes of action. A novel Oleaceae-specific defensin gene family has been discovered in the genome sequences of the wild and cultivated species of a perennial

First Report of Knot Disease Caused by Pseudomonas savastanoi on Sweet Olive in Central Italy.

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In April 2012 the presence of hyperplastic outgrowths on trunks, branches, and twigs of sweet olive plants, Osmanthus fragrans Lour (Fam. Oleaceae), was recorded in two ornamental hedges made up of five and four plants, respectively, in the city center of Montecatini (Pistoia-Italy). All sweet olive

Accumulation of xylem transported protein at pit membranes and associated reductions in hydraulic conductance.

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Proteins and traces of polysaccharide are the only polymeric colloids consistently transported in the xylem sap of plants. The hypothesis that such proteins could have physical inhibitory effects on xylem water transport was investigated. Ovalbumin, with a molecular weight of 45 kDa and a molecular

Temporal and spatial gene expression of cytochrome B5 during flower and fruit development in olives.

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We report the characterisation of two cytochrome b5 genes and their spatial and temporal patterns of expression during development in olive, Olea europaea. A PCR-generated probe, based on a tobacco cytochrome b5 sequence, was used to isolate two full-length cDNA clones (cytochrome b5-15 and
Protection of plants against bacterial diseases still mainly relies on the use of chemical pesticides, which in Europe correspond essentially to copper-based compounds. However, recently plant diseases control is oriented towards a rational use of molecules and extracts, generally with natural

Osmotin induces cold protection in olive trees by affecting programmed cell death and cytoskeleton organization.

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Osmotin is a pathogenesis-related protein exhibiting cryoprotective functions. Our aim was to understand whether it is involved in the cold acclimation of the olive tree (Olea europaea L.), a frost-sensitive species lacking dormancy. We exposed olive trees expressing tobacco osmotin gene under the

Ethnoveterinary medicines in four districts of Jimma zone, Ethiopia: cross sectional survey for plant species and mode of use.

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BACKGROUND Traditional medicines have been used for nearly 90% of livestock populations in Ethiopia where complimentary remedies are required to the modern health care system. All plants with pharmacological activity complimentarily prescribed as best choice against livestock diseases. A community

Pseudomonas savastanoi pv. savastanoi: some like it knot.

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Pseudomonas savastanoi pv. savastanoi is the causal agent of olive (Olea europaea) knot disease and an unorthodox member of the P. syringae complex, causing aerial tumours instead of the foliar necroses and cankers characteristic of most members of this complex. Olive knot is present wherever olive
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