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萃取赖百当及其化学成分研究 总被引:2,自引:1,他引:1
用超临界CO2萃取技术,在压力28MPa、温度40℃、反应时间3h及CO2流量30L/h的条件下,对岩蔷薇(Cistus labdaniferus L.)的枝叶进行萃取,得到赖百当(Labdanum)萃取物。并以苯为溶剂,采用索氏抽提法制备赖百当浸膏;用水蒸气蒸馏法提取赖百当精油。对不同提取工艺得到的赖百当产品的得率及质量进行了分析比较,超临界CO2萃取法产品得率最高,为6.6%(苯萃取法为4.8%,水蒸气蒸馏法为0.8%),且品质优于苯萃取法产品。用GC-MS分别对超临界CO2萃取物和水蒸气蒸馏精油的化学成分及相对含量进行了测定,共鉴定出31种化合物,其中超临界CO2萃取物中31种,水蒸气蒸馏精油中26种。 相似文献
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外生菌根菌对高寒地区松苗猝倒病的防病效应 总被引:2,自引:0,他引:2
用外生菌根菌纯培养的固体和液体菌剂在田间落叶松、樟子松幼苗进行人工接种试验,以研究外生菌根菌对松苗猝倒病的生物防治效应。结果:1、兴安落叶松幼苗猝倒病的发病率比对照区降低14.01%~21.91%;樟子松幼苗猝倒病的发病率比对照区降低11.48%~20.26%。2、试验筛选出Suillus grevillei,Boletus sp.,Gomphidius rutilus,Russula foetens 等优良菌种。3、母种培养基以松针(浸膏)培养基、马铃薯葡萄糖麦芽汁琼脂培养基为最佳;原种培养基则以草炭(石至)石玉米粉葡萄糖松针(浸膏)培养基、草炭(石至)石MMN液培养基为最佳。 相似文献
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不同种泡桐叶片愈伤组织诱导及其植株再生(英文) 总被引:8,自引:0,他引:8
在确定5种泡桐叶片诱导愈伤组织基本培养基为MS的基础上,通过不同的NAA和BA的组合,筛选出了毛泡桐(Paulownia tomentosa)、南方泡桐(Pauiownia australis)、白花泡桐(Paulownia fortunei)、兰考泡桐(Paulownia elongata)和豫杂一号泡桐(P.tomentosa x P. fortunei)叶片愈伤组织诱导、芽分化和根分化的最适培养基。MS+0.5NAA+4BA、MS+0.3NAA+2BA、MS+0.5NAA+4BA、MS+0.3NAA+6BA和MS+0.3NAA+8BA分别为五种泡桐树种叶片愈伤组织诱导的最适培养基,上述树种的叶片愈伤组织诱导芽分化最适培养基分别为MS+0.3NAA+12 BA、MS+0.3NAA+12 BA、MS+0.5NAA+12 BA、MS+0.5NAA+12 BA和MS+0.7NAA+12 BA,最后找出了5种泡桐芽诱导根的最适培养基分别为1/2MS+0.1NAA、1/2MS+0.1NAA、1/2MS、1/2MS+0.3NAA和1/2MS+0.5NAA。这些结果为开展泡桐基因工程研究和利用不同种泡桐叶片原生质体融合培育泡桐新品种提供了参考。 相似文献
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Field trials at three locations were used to evaluate survival and early growth of Paulownia elongata, P. fortunei, and P. × 'Henan 1' plants produced from seeds, shoot cuttings, and micropropagated shoots. One year after field establishment, trees produced by either vegetative propagation method survived with higher frequency and were taller and of greater diameter breast height than trees grown from seed. The influence of propagation method was more pronounced in P. elongata and P. fortunei than in P. × 'Henan 1'. Survival frequency was similar for each species/hybrid, but both species were taller than P. × 'Henan 1' across propagation method and site. Field site had a pronounced influence on tree survival and height. Species/hybrid differences were not detected at the site that promoted the greatest tree growth, but P. elongata outperformed P. fortunei and P. × 'Henan 1' at the two sub-optimal sites. Clones within species/hybrid produced through micropropagation differed in survival frequency, height, and diameter breast height. Under the conditions used for this study, Paulownia field survival and early growth in central North Carolina was improved by using P. elongata or P. fortunei produced by rooting shoot cuttings or micropropagated shoots. Significant variation among clones within these species demonstrated the potential benefit of identifying superior clones to improve first year field survival and growth. 相似文献
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泡桐干形培育研究进展 总被引:31,自引:3,他引:28
在我国北方泡桐栽培区由于泡桐顶芽在冬季枯死,通过假二叉分枝的方式进行自然接干,造成出材率低,尖削度大,树干形数小,给泡桐的木材生产带来了巨大的损失。为此我国的泡桐科研工作者经过近40年的努力,对泡桐干形进行了遗传改良,并在此基础上,围绕干形培育对泡桐的高干壮苗、人工接干、修枝、栽培密度与干形、混交与干形及其上述栽培管理措施与泡桐丛枝病的关系等问题进行了一系列研究。本文对我国泡桐干形培育的上述研究进行了综述,并对泡桐干形培育若干亟待解决的问题进行了讨论。 相似文献
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泡桐叶片蛋白质多态性及其聚类分析(英文) 总被引:2,自引:0,他引:2
根据白花泡桐(Paulownia fargesii)、白花兰考泡桐(P.elongata f. alba)、毛泡 桐(P. tomentosa)、川泡桐(P. fargesii)、山明泡桐(P. lamprophylla)、成都泡桐 (P. albiphloea var chengtuensis)、鄂川泡桐(P. albiphloea)、南方泡桐(P. austra lis)、白花泡桐(P. fortunei)、兰考泡桐(P. elongata)叶片蛋白质单向电泳和双向 电泳结果,可将它们聚类分为白花泡桐组(白花泡桐和白花兰考泡桐)、南方泡桐组(南方 泡桐和成都泡桐)和毛泡桐组(毛泡桐、川泡桐、鄂川泡桐、山明泡桐和兰考泡桐)。该结 果为泡桐属植物的分类提供了参考依据,也为泡桐属植物种确立、杂种鉴定和新品种培育奠 定了基础。 相似文献
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The experiment was carried out on five different species ofPaulownia for callus induction from leaves. MS medium was adopted as basic medium, and from different combinations of NAA and BA the
suitable media were determined for callus induction, bud differentiation, and root differentiation of five different species.
MS+0.5NAA+4BA, MS+0.3NAA+2BA, MS+0.5NAA+4BA, MS+0.3NAA+6BA, and MS+0.3NAA+8BA were suitable media of callus inductions of
leaves, respectively, forPaulownia tomentosa, Paulownia australis, Paulownia fortunei, Paulownia elongata andP. tmentosa x P. fortunei, and MS+0.3NAA+12BA, MS+0.3NAA+12BA, MS+0.5NAA+12BA, MS+0.5NAA+12BA, and MS+0.7NAA+12BA were suitable media for bud differentiation
from leaf callus respectively for above five species. The rooting media was determined as 2MS+0.1NAA, 1/2MS+0.1NAA, 1/2MS,
1/2MS+0.3NAA, and 1/2MS+0.5NAA. These results provide reference data for breeding new fine varieties with different kinds
ofPaulownia protoplasts fusions.
Foundation Item: This paper was supported by National Nature Science Foundation of China (No. 39870631) and Nature Science Foundation of
Henan Province (No. 994011100).
Biography: Fan Guo-qiang (1964), male Ph. Doctor, Professor in Forestry Department of Henan Agriculture University. Zhengzhou 450002,
P. R. China. E-mail: guoqiangf@263.net.
Responsible editor: Song Funan 相似文献
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泡桐丛枝病是影响泡桐生长的一种主要病害,种源试验表明在毛泡桐种源中,除甘肃平凉未见发病以外,其它种源均有病害发生。江苏南京、湖北十堰、黄冈、陕西商县和辽宁大连5个种源发病较重,病情指数超过30%;白花泡桐丛枝病发病率较低,自然分布区南部的种源很少见到丛枝病发生,分布区北部与毛泡桐分布区有重叠的种源,丛枝病发病相对较重。毛泡桐起源靠西的种源发病较轻,随着经度的增加,丛枝病发病有增大趋势;白花泡桐发病与种源经度无关,而与纬度相关明显,呈现出纬度越高,发病率越低,病情指数越小的趋势。泡桐品种间丛枝病发病率和病情指数差异明显,通过品种选择可以获得抗病优良品种。 相似文献
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国名{造林树种}一’造林方式及生长量}备注日·…::‘“馨双__…一煲忿童筹;嘿哼6万株’当‘产量…力口重物髻翼子矗羹羹、‘材二….按树.….2。竺鬓:;:,收获后萌.芽更‘,年均生长‘…生一 …·…·短轮伐期:伐期l。·,株行足巨3·3。,预计·… 卜、…、卿咖,树高‘sm,年均生长歇。一30ms/ha。{ }}超短轮伐期:伐期l一3年,株行距。.3xo.gm,}用于造纸工业,也适用于 加拿大}白杨{{ }…干物质年均生长量为15t/hao{能源。 {{中短轮伐期’伐翔5一6年,“固氮植物混植,} {{收获后萌芽更新。}一…鬓:羹攫、!方翼二熏轰氨“;!Zt/ha。开展栽植密度、育… 相似文献