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cassia sieberiana/nikotin
Länken sparas på Urklipp
8 resultat
[Transgenic tobacco plants with ribosome inactivating protein gene cassin from Cassia occidentalis and their resistance to tobacco mosaic virus].
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Cassin, the new gene of ribosome-inactivating protein (RIP) isolated from Cassia occidentalis, was inserted into expression vector pBI121 to produce plant expression vector pBI121-cassin (Figs.1, 2). pBI121-cassin was introduced into tobacco cultivar 'K326' by the Agrobacteriurm tumefaciens
Alatains A and B, unique hetero-dimeric polyphenols from Cassia alata and their anti-tobacco mosaic virus activity
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Two structurally unique polyphenols, alatains A (1) and B (2), were isolated from the bark of Cassia alata. Their structures were elucidated on the basis of spectroscopic analysis. Compounds 1 and 2 represent a new type of hetero-dimeric polyphenols with a C-14-C-5' linkage, biogenetically formed by
Flavones from Cassia siamea and their anti-tobacco mosaic virus activity.
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Two new flavones, siameflavones A and B (1 and 2), together with five known flavones (3-7) were isolated from the stem of Cassia siamea. Their structures were elucidated by spectroscopic methods including extensive 1D and 2D NMR techniques. Compounds 1-5 were evaluated for their anti-tobacco mosaic
Traditional medicine Cassia absus L. (chaksu)-pharmacological evaluation.
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A crude extract of Cassia absus L. produced a dose dependent decrease in systemic arterial blood pressure and heart rate in pentothal anaesthetized rats. Repeated injections of the same dose of the crude extract (CA) showed tachyphylaxis. The cardio-vascular actions were not modified by pretreatment
Tri-trophic insecticidal effects of African plants against cabbage pests.
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Botanical insecticides are increasingly attracting research attention as they offer novel modes of action that may provide effective control of pests that have already developed resistance to conventional insecticides. They potentially offer cost-effective pest control to smallholder farmers in
Three new anthraquinones from the twigs of Cassia fistula and their bioactivities.
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Three previously unreported anthraquinones, fistulaquinones A-C (1-3), together with three known ones (4-6) were isolated from the twigs of Cassia fistula. Their structures were determined by means of extensive NMR and MS spectroscopic analyses. All the isolated compounds were tested for their
Synthesis of infectious in vitro transcripts from Cassia yellow blotch bromovirus cDNA clones and a reassortment analysis with other bromoviruses in protoplasts.
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Cassia yellow blotch virus (CYBV), genus Bromovirus, was isolated from the Australian native legume, Cassia pleurocarpa, in western Queensland, and its host range was found to be distinct from other bromoviruses. In this study, CYBV was shown to infect systemically and efficiently a model plant
Cytotoxic allelochemicals induce ultrastructural modifications in Cassia tora L. and mitotic changes in Allium cepa L.: a weed versus weed allelopathy approach.
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The stress induced by allelochemicals present in stem aqueous extract (SAE) of Nicotiana plumbaginifolia on alterations in growth, ultrastructure on Cassia tora L., and mitotic changes on Allium cepa L. were inspected. Application of SAE at different concentrations (0.5, 1, 2, and 4%) expressively
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