Full Text Available Campsis radicans is an attractive climber with typical ornitogamous flowers, native to North America. In natural conditions this out-crossed plant is pollinated mostly by hummingbirds. In Poland, where C. radicans is cultivated as ornamental, it rarely sets seeds. The questions addressed in the present study were: (1 What animals pollinate its flowers in Poland?, and (2 What is the reason for infrequent fruit set? Field studies conducted in five localities in Poland showed that the principal pollinator is Apis mellifera, and the lack of seeds is usually caused by pollinator limitation or absence of genetically different pollen donor plants.
YANGShu-Xiang; YANGChun-Feng; ZHANGTao; WANGQing-Feng
The precise factors affecting stigma behavior in Campsis radicans (L.) Seem. ex Bureau. remain unclear up to now. In this study mechanical touch, self- and cross-pollination, and pollination with variable amounts of pollen grains separately contacting with stigmas have been conducted to determine the exact factor affecting the stigma behavior. Results show that mechanical touch alone cannot make the stigmas close permanently. It is the adequate pollen (>350) deposition that causes the stigma permanent closure, which is in accordance with previous reports that sufficient pollen grains are necessary for fruit development. In addition, the stigma behavior does not display differences when pollinated with cross- or self-pollen separately; both self and cross pollen grains can germinate and grow successfully. Our results cannot demonstrate that the stigma behavior in C. radicans is an outcrossing mechanism, but strongly indicate it acts as a mechanism to facilitate pollination, and then enhance the reproductive success.
赵谦; 廖矛川; 郭济贤
对凌霄Campsis grandiflora(Thunb.)K.Schum.的干燥花进行了化学成分研究,分离获得了10个化合物,并且根据它们的物理化学性质及各种光谱数据鉴定了其中的9个化合物.它们分别是:三十一烷醇、α-,β-香树脂醇、β-谷甾醇、15-巯基-2-十五烷酮、芹菜素、胡萝卜甙、齐墩果酸、桂皮酸、acteoside.另一结构待定的化合物,暂定名为CG-10.除了其中的β-谷甾醇、芹菜素和齐墩果酸外,其他化合物均首次从凌霄的花中获得.除化学成分的研究以外,我们还进一步考察了凌霄花乙醇浸膏的石油醚、乙酸乙酯、丙酮、丙酮:甲醇(1:1)、甲醇5部分的提取部位,以及分到的齐墩果酸、胡萝卜甙、acteoside及CG-10等4个化合物收缩离体孕小鼠子宫肌条的活性.首次报道了凌霄花抗生育活性部位的抗生育活性,其中丙酮:甲醇(1:1)提取部位可以极显著的增强孕小鼠的离体子宫肌条的收缩强度(P＜0.001).这个研究结果提示在临床上可能有一定的应用价值.%Chinese drug"Ling-Xiao-Hua", the dried flower of Campsis grandiflora (Thunb.)K. Schum. wasspecified as Flos Campsis in Chinese Pharmacopoeia(2000). Hentriacontanol ( 1 ), α-, β-amyrin (2), β-sitosterol(3), oleanolic acid(4 ), apigenin ( 5 ), cinnamic acid (6), 15-mercapto-2-pentadecanone ( 7 ), daucosterol ( 8 ) andacteoside(9) were separated and identified by physiochemical and spectroscopic analyses. Besides β-sitosterol,oleanolic acid and apigenin, the other 7 compounds were the first time separated from the dried flower ofCampsis grandiflora(Thunb. )K. Schum. We also investigated the contraceptive effect of the five fractions ofpetroleum ether(60～ 90 ℃ PE), EtOAc(EA), Me2CO(AC), Me2CO: CH3OH(1: 1 AC: ME = 1: 1),andCH3OH(ME) ,and three compounds,oleanolic acid, daucosterol, and acteoside. We found that EA,AC,AC: ME(1:1) ,and ME fractions (0.02 rng/ml)all can distinctly improve the contractive effect on the
Full Text Available X:108594] Bignoniaceae (trumpet-creeper family) Campsis grandiflora flower (dried) Crude drugs [BR:br08305] ...Dicot plants: asterids Bignoniaceae (trumpet-creeper family) E00493 Campsis grandiflora flower ...
lanuginosa 3 Campsis radicans Carpinus caroliniana Carya cordifonnis Carya illinoensis Carya laciniosa Carya ovalis 2. Carya ovata Carya ...texana Carya toraentosa Ceanothus americanus Celastrus scandens 2, Celtis laevigata ^Celtis occidentalis Celtis tenuifolia 3 Cephalanthus
a building through small spaces and openings, accumulating in enclosed areas, such as basements. The cancer risk caused by exposure, through the...asper Texas speargrass Stipa leucotricha "* Herbs and Shrubs Ragweed Amerosia spp. Milkweed Asciepias spp. Trumpet creeper Campsis radicans Water...illness, cancer , stroke, hypertension, sudden cardiac death, myocardial infarction, and cardiac arrhythmias. Of these, hypertension is the most
hickory Carya illinoensis pecan Carya spp. hickory Celtis laevigata sugarberry Celtis occidentalis hackberry Cephalanthus occidentalis...abundance were deciduous holly and red maple. Matos and Rudolph (1985) recorded overcup oak, laurel oak, sweetgum, black gum, water hickory ( Carya ...switchcane Berchemia scandens supplejack Betula nigra river birch Campsis radicans trumpet creeper Carpinus caroliniana ironwood Carya aquatica water
@@ 凌霄花,为紫葳科植物凌霄Campsis Grandiflor(Thunb.)K.Schum或美洲凌霄Campsis Radicars(L.)Seem.的干燥花,具有凉血、化瘀、祛风的功效,用于治疗月经不调、产后乳肿、风疹发红、皮肤瘙痒、痤疮.笔者在安国及本地流通市场上发现凌霄花伪品,经鉴定为玄参科植物泡桐Paulownia fortunei(soem.)Hemsl的干燥花,目前尚无报道,笔者就其性状进行了鉴定,现报道如下.
Steinbrecher, Tina; Danninger, Elisabeth; Harder, Deane; Speck, Thomas; Kraft, Oliver; Schwaiger, Ruth
In order to grow vertically, it is essential for climbing plants to firmly attach to their supporting structures. In climbing plants, different strategies for permanent attachment can be distinguished. Besides twining stems and tendrils, many plants use attachment pads or attachment roots for this purpose. Using a novel custom-built tensile testing setup, the mechanical properties of different permanent attachment structures of self-clinging plant species were investigated, namely the attachment pads of Boston ivy (Parthenocissus tricuspidata), the attachment roots of ivy (Hedera helix) and the clustered attachment roots of trumpet creeper (Campsis radicans). Force-displacement measurements of individual attachment pads as well as of complete structures consisting of several pads or roots were conducted for both natural and laboratory growth conditions. The shapes of the curves and the maximum forces determined indicate clear differences in the detachment process for the different plants and structures tested. Based on these findings, it is argued that the attachment structures are displacement-optimized rather than force-optimized.
Full Text Available The criopreservation involve the stock of the vegetal material at low temperatures (-196°C in liquid nitrogen, in thermal conditions in which the division of cells and metabolic processes slow down, thus that the samplings may be conserved for long periods without suffering any genetic modifications. This stock technique is applied till present only on 80 vegetal species, keeping their seeds and vitrocultures preponderantly; researches were made regarding the maintenance of pollen in liquid nitrogen.The mature pollen, able to resist a higher degree of desiccation, may be conserved at low temperatures, without criopreservation. It was made researches on criopreservation of rise, maize, wheat, roses, sun flower and soy pollen. Our study purpose was to follow the impact of liquid nitrogen (-196°C about on viability of some cultured and ornamental species. The designed time of criopreservation it was 30 minutes and 7 days, using the TTC (tripheniltetrazole chloride method which allows testing the viability of vegetal material based on dehydrogenase activity.It was observed at Petunia hybrida species, that the pollen viability was low - in relevance with the witness represented from the pollen which was not resigned to the nitrogen liquid treatment - between percentage limits of 3.5-8%, in the case when the vegetal material was submersed 30 minutes in liquid nitrogen and 7.5-14.5% 7 days at (-196°C. The submersing of Nicotiana alata var. grandiflora species at 7 days, determined a low viability with 11.53%. The following two studied species Cucurbita and Hosta were proved to be the most resistant at submersing and maintenance in liquid nitrogen. The most affected pollen was Campsis radicans species. At Datura stramonium species was observed 2.59% a low viability of pollen, after 30 minutes of liquid nitrogen treatment, was 19.56%, after 7 days of submersing, the most pollen granules losing completely their viability.
李欣; 李斌; 李福伦; 周敏; 顾荻青; 李建伟; 王洁; 李峰; 徐蓉
prospective clinical study. The correlation was analyzed with the single correlation coefficient, Logistic regression model and SPA. Results The single correlation coefficient showed 15 herbs were the positive correlation factors with blood heat syndrome of advancing psoriasis vulgaris, such as Kushen (Radix Sophorae Flavescentis), Jinyinhua (.Flos Lonicerae Japonicae), Chonglou (RhizomaParidis), Shemei (Her-ba Duchesnea Indica), Tufuling (Rhizoma Smilacis Glabrae), Chishao (Radix Paeoniae Rubra), Baixianpi (Cortex Dictam-ni), Jingjie (Herba Schizonepetae), Mudanpi (Cortex Moutan), Shengdihuang (Radix Rehmanniae Recens), Shuiniujiao (Cornu Bubali), Baishao (Radix Paeoniae Alba), Wugong (Scolopendra Subspinipes), Quanxie (Scorpio) and Lingxiaohua (Flos Campsis). Logistic regression analysis showed 12 herbs were the influencing factors on the therapeutic effect of advancing psoriasis vulgaris, such as Gancao (Radix et Rhizoma Glycyrrhizae), Cishi (Magnetitum), Muli (Concha Ostreae), Zheshi (Haematitum), Chishao (Radix Paeoniae Rubra), Baqia (Rhizoma Smilacis Chinae), Zhimu (Rhizoma Anemarrhe-nae), Shengdihuang (RadixRehmanniae Recens), Shandougen (Radix et Rhizoma Suphorae Tonkinensis), Quanxie (Scorpi-o), Wugong (Scolopendra Subspinipes) and Chonglou (Rhizoma Paridis). SPA showed 14 herbs had the best synergitic effect for advancing psoriasis vulgaris, such as Jingjie (Herba Schizonepetae), Baishao (Radix Paeoniae Alba), Baixianpi (.Cortex Dictamni), Wugong (Scolopendra Subspinipes), Quanxie (Scorpio), Kushen (Radix Sophorae Flavescentis), Jinyinhua (Flos Lonicerae Japonicae) , Tufuling (Rhizoma Smilacis Glabrae), Shemei (Herba Duchesnea Indica ), Mudanpi (Cortex Moutan), Shengdihuang (Radix Rehmanniae Recens), Chonglou (Rhizoma Paridis), Chishao (Radix Paeoniae Rubra) and Difuzi (Fructus Kochiae). Conclusion Twenty-two herbs were the correlation factors and effective for advancing psoriasis vulgaris with blood heat syndrome, such as Jingjie (Herba Schizonepetae), Chishao