narcissus papyraceus/nicotine

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Oxidative stress and mitochondrial dysfunctions are early events in narciclasine-induced programmed cell death in tobacco Bright Yellow-2 cells.

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Narciclasine (NCS) is a plant growth inhibitor isolated from the secreted mucilage of Narcissus tazetta bulbs. It is a commonly used anticancer agent in animal systems. In this study, we provide evidence to show that NCS also acts as an agent in inducing programmed cell death (PCD) in tobacco Bright

Ectopic Overexpression of a Novel R2R3-MYB, NtMYB2 from Chinese Narcissus Represses Anthocyanin Biosynthesis in Tobacco.

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R2R3 MYB transcription factors play key functions in the regulation of secondary metabolites. In the present study, a R2R3 MYB transcriptional factor NtMYB2 was identified from Chinese narcissus (Narcissus tazetta L. var. Chinensis Roem) and functionally characterized. NtMYB2 belongs to subgroup 4

NtMYB3, an R2R3-MYB from Narcissus, Regulates Flavonoid Biosynthesis.

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R2R3-MYB transcription factors play important roles in the regulation of plant flavonoid metabolites. In the current study, NtMYB3, a novel R2R3-MYB transcriptional factor isolated from Chinese narcissus (Narcissus tazetta L. var. chinensis), was functionally characterized.

First Report of Narcissus mosaic virus Infecting Crocus spp. Cultivars in the Netherlands.

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A survey to identify virus diseases affecting Crocus spp. in the Netherlands was conducted during April 2004. Crocus spp. (cvs. Flavus, Pick-wick, Remembrance, and Grand Maitre) with symptoms suggestive of virus infection (stunting, yellowing, necrosis, and flower color breaking) were collected from

β-Carotene synthesis in isolated chromoplasts from Narcissus pseudonarcissus.

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A system has been established from isolated intact chromoplasts of Narcissus pseudonarcissus flowers that synthesizes geranylgeraniol, an unknown polyprenoid alcohol, phytoene, and β-carotene from [1-(14)C]isopentenyl pyrophosphate in a good yeild. Long chain pyrophosphates are not accumulated. San

[Cloning and analyzing of the cDNA sequence of CHS-A gene of Narcissus].

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Chalcone synthase (CHS) is a key enzyme in the biosynthesis of all classes of flavonoids. The production of flower pigment is specifically regulated by the activity of CHS. We cloned the cDNA sequence of CHS-A gene from Narcissus by PCR and analyzed the coding sequence of gene. The result

A Narcissus mosaic viral vector system for protein expression and flavonoid production.

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BACKGROUND With the explosive numbers of sequences generated by next generation sequencing, the demand for high throughput screening to understand gene function has grown. Plant viral vectors have been widely used as tools in down-regulating plant gene expression. However, plant viral vectors can

Solution structures of potato virus X and narcissus mosaic virus from Raman optical activity.

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Potato virus X (PVX) and narcissus mosaic virus (NMV) were studied using vibrational Raman optical activity (ROA) in order to obtain new information on the structures of their coat protein subunits. The ROA spectra of the two intact virions are very similar to each other and similar to that of

Toxic effect of common poisonous plants of district Bannu, Khyber Pakhtunkhwa, Pakistan.

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The present paper was a part of Ph.D research work, conducted during the year 2014, in which 87 poisonous plants belonging to 54 genera, were collected, documented and preserved in the herbarium of Bannu, Department of Botany UST, Bannu Khyber Pakhtunkwa Pakistan. The plants were identified

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