四种观赏凤梨的离体繁殖

以粉菠萝[Aechmea fasciata (Lindl.)Baker]、八宝剑（Vriesea poelmanii Hort.)、虎斑姬凤梨[Cryptanthus zonatus(Vis.)Beer]、七彩羞凤梨[Neoregelia carolinae (Beer)L.B.Sm.]等的幼株茎段为外植体,以MS＋NAA 0.5mg L^-1 BA 5mg L^-1为诱导培养基,MS＋BA 1mg L^-1 NAA 0.1mg L^-1为增殖培养基,可获得较好增殖效果。用1／2MS＋NAA 0.5mg L^-1生根效果较好,以椰糠：砂＝1：1,或椰糠：泥炭土：蛭石＝1：1：1为基质移苗的成活率均达95％以上。     

红藻凤梨的离体快速繁殖

1　植物名称　红藻凤梨 (Ｂｉｌｌｂｅｒｇｉａｐｙｒａｍｉｄａｌｉｓ) ,又名水塔花。2　材料类别　吸芽茎尖。3　培养条件　诱导培养基 :(1) 1/ 3ＭＳ 6 ＢＡ 0 .2ｍｇ·Ｌ- 1(单位下同 ) ＩＢＡ 0 .0 2。芽增殖培养基 :(2 )ＭＳ 6 ＢＡ 1.0 ＩＢＡ 0 .2 ;(3)ＭＳ     

普雅凤梨的离体培养与植株再生

1植物名称普雅凤梨（Puya raimondii Harms．）。 2材料类别种子。     

凤梨科植物生物技术研究进展（综述）

综述近年来生物技术在凤梨科植物中的应用进展,重点介绍凤梨科植物组织培养研究及其常见问题,概述了凤梨科植物遗传转化的研究现状,并对一些问题提出解决对策.     

红润楠的离体培养与快速繁殖

1植物名称 红润楠（MachilusthunbergiiSieb．etZucc．）,别名红楠、小楠木、猪脚楠。 2材料类别 顶芽和带腋芽的茎段。     

绿巨人茎尖的离体培养及快速繁殖

1植物名称绿巨人（SpathiphyllumKochii）。2材料类别带顶芽茎段经表面消毒后从顶端分离出的2mm茎尖。3培养条件培养基：（1）1／2MS＋6－BA0．1mg·L－1（单位下同）＋IAA0．3;（2）MS＋6－BA0．5＋NAA0．5;（3）1／2MS＋6－BA0．1＋IBA0．5。以上培养基均含3％蔗糖、0．8％琼脂,pH5．8。培养温度28～30℃,照光12h·d－1,光照度2000lx。4生长与分化情况4．1茎尖的制备与培养从盆栽的生长旺盛、粗壮无病虫害的绿巨人植株上切取4cm带顶芽的茎段,除去叶片和大部分叶柄后,置烧杯中,加入1滴中性洗涤液及少量自来水,用细软的…     

节瓜离体培养和快速繁殖

1　植物名称　节瓜 (Ｂｅｎｉｎｃａｓａｈｉｓｐｉｄａｖａｒ.ｃｈｉｅｈ ｑｕａ)品种“四号江心节”。2　材料类别　种子萌发的无菌苗茎尖。3　培养条件　 ( 1 )种子萌发培养基 :1 /2ＭＳ0 ;( 2 )芽诱导和增殖培养基 :ＭＳ + 6 ＢＡ 4.0ｍｇ·Ｌ- 1 (单位下同 ) +ＩＡＡ 0 .2 ;( 3)伸长培养基 :ＭＳ + 6 ＢＡ1 .0 +ＩＡＡ 0 .5 ;( 4 )生根培养基 :ＭＳ +ＩＡＡ 0 .5。培养基 ( 2 )～ ( 4 )均附加 0 .7%琼脂和 3%蔗糖 ,ｐＨ5 .8～ 6.0 ,培养温度为 ( 2 5± 2 )℃ ,光照度为 2 0 0 0ｌｘ ,光照时间 1 2ｈ·ｄ- 1 。4　生长与分化情况4.1　无…     

铁皮石斛快速繁殖和离体种质保存的研究

对铁皮石斛种子发芽、原球茎增殖、丛芽分化和壮苗培育进行了试验、观察和分析,研究了培养基、植物激素、光强和添加剂等对其分化和生长的影响。结果显示种子在1/2MS+蔗糖2%的培养基上,30d萌发95%以上。原球茎在1/2MS+椰子汁25%+蔗糖3%的培养基上,45~60d原球茎增殖速度可达1∶10。丛芽分化较适宜的培养基为1/2MS+BA2mg·L-1+NAA0.2mg·L-1+IBA0.1mg·L-1+蔗糖3%,45~60d芽丛增殖速度为1∶4~5。试管苗在MS+香蕉泥20%+蔗糖2%培养基上,大约60d苗快速长高,茎粗壮且根系发达。离体保存材料可采用试管丛芽和原球茎两种方式,以保持其遗传多样性。保存方法是在15℃左右条件下,保存离体材料,继代间隔期为12~18个月;也可以采用室温保存,在1/2MS+蔗糖1%培养基上,继代间隔期可延长至10~12个月。     

矮牵牛的离体培养和快速繁殖

InvitroCultureandRapidPro阴切nonofCommonpetunianHua,WENChun－Xu（PbeedeyIfes～lrchIndddeofHdri,SAsfor050061）1植物名称矮牵牛（Petun。htwde）,又名碧冬茄。2材料类别茎尖、带芽的茎段。3培养条件（回）诱导培养基：l／3MS＋6－BAImg／L（单位下同）＋IBA0．02＋GellanGum（进口琼脂）2g／L;（2）增殖培养基：MS＋6．BA0．5～1＋IBA0．2;（3）生根培养基：l／2MS＋IBA0．5。培养基含蔗糖25g／L,（2）和（3）附加普通琼脂55g／L。PH58,高压灭菌。培养温度22～25”C,光照度1500IX,照光10～12h／d。毛生…     

唐菖蒲球茎芽的离体培养及快速繁殖

将带1-2个芽眼的唐菖蒲球茎切块接种到附加1.0mg/LBA的MS基本培养基上可诱导休眠芽萌动、无菌芽转移至附加3.0mg/LBA的培养基上可分化产生丛生芽。丛生芽的继代增殖宜采用附加1.5mg/LBA的培养基生根培养,以MS+NAA 0.1-0.5mg/L或MS+IBA 1.5mg/L效果最佳。试管苗移栽存活率可达50%左右。     

In vitro propagation of cassava (Manihot esculenta Crantz)

A method is presented for the rapid in vitro propagation of cassava (Manihot esculenta Crantz). Nodal explants were induced to grow as multiple-shoot cultures on a medium containing 1.0 M 6-benzylamino purine (BAP), supplemented with 0.25 M -naphthaleneacetic acid (NAA). Nodes were removed from the shoots after three weeks of growth and subcultured on fresh culture medium. An average of 7.0 nodes were produced from each explanted node after three weeks in culture. Nodal explants were transferred to a medium containing 2.5 M indole-3-butyric acid (IBA) to improve root initiation on the developing plantlets. Plant establishment was possible upon transfer to soil. In vitro propagation offers enhanced rates of multiplication over more conventional methods of propagation. In addition, in vitro propagation facilitates the storage and international exchange of cassava germplasm.     

In vitro flowering in cassava (Manihot esculenta Crantz)

Meristem-derived plantlets of cassava (Manihot esculenta Crantz) were induced to flower in vitro. Five genotypes out of 13 consistently responded to our culture conditions giving rise to male or female flowers. Male flowers contained anthers in which meiosis occurred and apparently normal pollen grains were formed.     

In vitro culture of ovaries of a viviparous gall midge

Summary Ovaries of the viviparous pedogenetic gall midgeHeteropeza pygmaea can be cultured in hemolymph obtained from X-ray-sterilized larvae of the same species. In this culture medium, formation of follicles is essentially the same as in vivo, and sometimes female larvae develop from these follicles. The ovaries of such larvae, in their turn, have been cultured in vitro to produce larvae. In this way, in vitro development from oogonium to larva has been maintained for several generations. When using hemolymph obtained from larvae grown under different conditions, the in vitro cultured ovaries produce a second type of egg which probably is male-determined. Ovarian development in vitro has been studied with differential interference contrast optics and time-lapse cinemicrography. This work was supported by the Swiss National Science Foundation Grant No. 3.2010.73.     

大花卷丹的组织培养及限制生长保存

离体保存是植物种质保存的重要手段之一,为实现对大花卷丹的保护性利用,本文对其组织培养体系及限制生长离体保存技术进行了研究。结果表明,在常温（23±2）℃、光照强度约为40μmol.m-2.s-1、光照时间14h.d-1的条件下,大花卷丹鳞片在MS＋6-BA1.0mg.L-1＋NAA0.2mg.L-1培养基中生长情况较好,能直接诱导芽,且小鳞茎的生长速度较快。将诱导出的小鳞茎切割后,接种到1/2MS＋NAA0.5mg.L-1＋活性炭2g.L-1生根培养基2～3周即能生根,生长状况良好。提高MS培养基中蔗糖达90和110g.L-1时可以抑制其生长,能够保存大花卷丹试管苗10个月,保存过程中生长正常,株高生长缓慢,但根长势较快。在蔗糖浓度90g.L-1基础上再添加30g.L-1甘露醇的培养基能进一步抑制试管苗根的生长。6个月后,转移到正常培养基上培养均能恢复生长,其鳞片在诱导培养基上能正常分化。因此,采用大花卷丹鳞片组织培养可以形成种苗,在培养基中添加高蔗糖浓度和甘露醇可以使其试管苗保存1年以上。     

木薯离体培养与快速繁殖

选取3个木薯品种的腋芽作为外植体,分别接种于MS基本培养基上进行离体培养及快速繁殖。结果表明, 6-BA不同浓度对木薯品种不定芽诱导效果不一,在MS+6-BA 0.5~1.0mg/L中,3个品种均可诱导产生幼芽;在MS+6-BA 3.0mg/L中,3个品种的幼芽诱导率高达100%;MS+6-BA 3.0mg/L+NAA 0.1mg/L对继代效果较好;MS+NAA 0.1mg/L对生根效果最佳。     

芋茎尖离体培养和快速繁殖

对芋优良品种莱阳毛羊头进行茎尖培养和快速繁殖。试验表明,外植体表面灭菌的最佳方案是乙醇→新洁尔灭→剥幼叶→升汞。在较软的培养基中,茎尖大于0．6mm,成活率为90％以上。不定芽分化的最适培养基为MS＋BA1（mg／L以下单位相同）＋NAA0．2＋Spm20,其分化率为100％。不定芽在MS＋BA2＋NAA0．1＋Spm50的培养基中,可实现继代繁殖和诱导生根一步完成,月增殖系数达7．3,生根率88．3％。芋试管苗移栽于沙壤土基中,成活率为90％以上,且生长健壮,根系发达。     

云南龙竹的快速繁殖和离体保存研究

本研究以干冷保存（-20 ℃,相对湿度15%）150 d 的云南龙竹（Dendrocalamus yunnanicus）颖果为实验材料,通过种子萌发建成丛芽无菌无性系进行快繁和离体保存。研究表明,丛芽增殖的最佳培养基为MS + 6-BA 2 mg/L + NAA 0.2 mg/L,蔗糖浓度以3%为佳;生根培养的最佳培养基为MS + IBA 1 mg/L + NAA 1 mg/L,以单芽诱导生根为好;离体保存丛芽的最适培养基为MS + 6-BA 0.5 mg/L + NAA 0.2 mg/L;当培养温度由室温 (25±3)℃降低至(20±3)℃和12 ℃时,其继代周期可由原来的2 个月分别延长至4 个月和8 个月。在组织培养过程中发现白化苗或叶色变异现象。