| comparison of the structure of floral nectaries in two euonymus l. species (celastraceae). | the inconspicuous euonymus l. flowers are equipped with open receptacular floral nectaries forming a quadrilateral green disc around the base of the superior ovary. the morphology and anatomy of the nectaries in euonymus fortunei (turcz.) hand.-mazz. and euonymus europaeus l. flowers were analysed under a bright-field light microscope as well as stereoscopic and scanning electron microscopes. photosynthetic nectaries devoid of the vascular tissue were found in both species. nectar was exuded thr ... | 2015 | 25391262 |
| variability among species in the apoplastic ph signalling response to drying soils. | after the imposition of soil drying treatments, an elevation of xylem sap ph is one of the earliest observable responses in many herbaceous model plant species. it is theorized that alkalization of sap results in a concurrent elevation in abscisic acid (aba) concentration delivered to transpiring tissues by preventing henderson-hasselbalch-regulated partitioning between the apoplast and symplast. however, here it is demonstrated that the sap alkalzation response to soil drying is far from univer ... | 2009 | 19726633 |
| chemical constituents of euonymus fortunei. | a new flavonol glycoside, kaempferol-3-o-β-d-(2-o-e-p-coumaroyl)-glucopyranosyl-7-o-α-l-rhamnopyranoside (1), along with eleven known compounds including five flavonol glycosides (2-6), one phenolic glycoside (7), two megastigmane glycosides (8 and 9), two triterpenoids (10 and 11) and one alditol (12), was isolated from the aerial parts of euonymus fortunei. their structures were determined on the basis of spectroscopic analysis and chemical evidence. compounds 2-4, 7, 8, and 10-12 were evaluat ... | 2015 | 25921486 |
| cell-wall changes and cell tension in response to cold acclimation and exogenous abscisic acid in leaves and cell cultures. | freeze-induced cell tensions were determined by cell water relations in leaves of broadleaf evergreen species and cell cultures of grapes (vitis spp.) and apple (malus domestica). cell tensions increased in response to cold acclimation in leaves of broadleaf evergreen species during extracellular freezing, indicating a higher resistance to cell volume changes during freezing in cold-hardened leaves than in unhardened leaves. unhardened leaves, typically, did not develop tension greater than 3.67 ... | 1996 | 12226314 |
| interaction of euonymus scale (homoptera: diaspididae) feeding damage and severe water stress on leaf abscission and growth of euonymus fortunei. | rooted cuttings of euonymus fortunei were grown in a 2x2 factorial design experiment with or without euonymus scales and/or water stress. infested plants and water stressed plants abscised leaves whereas uninfested, unstressed plants did not. there was significant interaction between scale infestation and water stress, with a synergistic effect on leaf abscission. both scale infestation and water stress reduced the root weight, but there was no resulting change in the root/shoot ratio.naturally ... | 1986 | 28312081 |
| the evolution of minor vein phloem and phloem loading. | phylogenetic analysis provides a rational basis for comparative studies of phloem structure and phloem loading. although several types of minor vein companion cell have been identified, and progress has been made in correlating structural features of these cells with loading mechanisms, little is known about the phylogenetic relationships of the different types. to add to the available data on companion cells, we analyzed the ultrastructure of minor veins in euonymus fortunei and celastrus orbic ... | 2001 | 21669666 |
| [study on microwave extracting process of polysaccharide from euonymus fortunei]. | to study the best extraction process of the polysaccharides from euonymus fortuei with microwave. | 2009 | 19504977 |
| [optimal extraction of melampyrit from euonymus fortunei by central composite design-response surface methodology]. | to optimize the process of extracting melampyrit from euonymus fortunei by central composite design-response surface methodology. | 2009 | 19764338 |
| field attraction of the vine weevil otiorhynchus sulcatus to kairomones. | root weevils in the genus otiorhynchus are cited as one of the most important pests in the major nursery and small fruit production areas throughout the united states, western canada, and northern europe. a major problem in combating weevil attack is monitoring and timing of control measures. because of the night-activity of the adult weevils growers do not observe the emerging weevils in a timely manner and oviposition often starts before effective control measures are taken. several vine weevi ... | 2012 | 22420269 |
| [research on quality standards of euonymus fortunei]. | to establish quality standards of euonymus fortunei, and supply scientific evidence for the quality control of euonymus fortunei. empirical and microscopic identification methods were adopted to observe morphological and histological characters. the contents of water, total ash, acid-insoluble ash and alcohol-soluble extractive were analysed according to the methods of chinese pharmaco- poeia (2010). dulcitol and reference herbs were used to identify materia medica of euonymus fortunei by tlc me ... | 2015 | 26390641 |
| screening of inhibitors of glycogen synthase kinase-3β from traditional chinese medicines using enzyme-immobilized magnetic beads combined with high-performance liquid chromatography. | glycogen synthase kinase-3β (gsk-3β) was immobilized on magnetic beads (mbs) by affinity method for the first time. the enzyme-immobilized mbs were coupled with high-performance liquid chromatography-ultraviolet (hplc-uv) technique to establish a cost-effective and reliable method for screening of inhibitors of gsk-3β. a peptide substrate of gsk-3β containing a tyrosine residue was employed since it can be sensitively detected by uv detector at 214nm. the substrate and its phosphorylated product ... | 2015 | 26610618 |