中南林业科技大学学报
中南林業科技大學學報
중남임업과기대학학보
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF FORESTRY & TECHNOLOGY
2015年
4期
40-45
,共6页
陈容%郑玉娟%张党权%陈丽莉%龚建平%周文化%何含杰%覃杰明
陳容%鄭玉娟%張黨權%陳麗莉%龔建平%週文化%何含傑%覃傑明
진용%정옥연%장당권%진려리%공건평%주문화%하함걸%담걸명
红檵木%再生体系%不定芽诱导%硝酸银
紅檵木%再生體繫%不定芽誘導%硝痠銀
홍계목%재생체계%불정아유도%초산은
Loropetalum chinense var. rubrum%regenetation system%adventitious bud induction%silver nitrate
红檵木是极具观赏价值的常绿灌木。以红檵木的叶片和茎段为材料,通过优化愈伤组织诱导与增殖,不定芽诱导、增殖与生根的培养基与激素配比,进行红檵木高效再生体系研究。结果表明,红檵木外植体最佳消毒方案为两次升汞消毒法:0.1% HgCl2两次消毒,各3 min;最佳愈伤组织诱导与增殖的培养基配方分别为:MS +6-BA 1.0 mg/L + NAA 1.7 mg/L、MS +6-BA 1.0 mg/L + IBA 0.06 mg/L;首次使用 AgNO3,获得最佳不定芽诱导培养基配方:MS +6-BA 1.5 mg/L+ NAA 0.01 mg/L + AgNO31 mg/L;不定芽增殖最佳培养基配方为:MS +6-BA 1.0 mg/L + IBA 0.05 mg/L + Vc 5.0 mg/L;最佳不定芽生根方案为:选择2.1~3.0 cm 的不定芽,保留2~4叶片,接种至1/2 MS + IBA 4.5 mg/L 培养基。从而建立了效果稳定的完整红檵木高效再生体系,为红檵木工厂化育苗及转基因体系建立奠定基础。
紅檵木是極具觀賞價值的常綠灌木。以紅檵木的葉片和莖段為材料,通過優化愈傷組織誘導與增殖,不定芽誘導、增殖與生根的培養基與激素配比,進行紅檵木高效再生體繫研究。結果錶明,紅檵木外植體最佳消毒方案為兩次升汞消毒法:0.1% HgCl2兩次消毒,各3 min;最佳愈傷組織誘導與增殖的培養基配方分彆為:MS +6-BA 1.0 mg/L + NAA 1.7 mg/L、MS +6-BA 1.0 mg/L + IBA 0.06 mg/L;首次使用 AgNO3,穫得最佳不定芽誘導培養基配方:MS +6-BA 1.5 mg/L+ NAA 0.01 mg/L + AgNO31 mg/L;不定芽增殖最佳培養基配方為:MS +6-BA 1.0 mg/L + IBA 0.05 mg/L + Vc 5.0 mg/L;最佳不定芽生根方案為:選擇2.1~3.0 cm 的不定芽,保留2~4葉片,接種至1/2 MS + IBA 4.5 mg/L 培養基。從而建立瞭效果穩定的完整紅檵木高效再生體繫,為紅檵木工廠化育苗及轉基因體繫建立奠定基礎。
홍계목시겁구관상개치적상록관목。이홍계목적협편화경단위재료,통과우화유상조직유도여증식,불정아유도、증식여생근적배양기여격소배비,진행홍계목고효재생체계연구。결과표명,홍계목외식체최가소독방안위량차승홍소독법:0.1% HgCl2량차소독,각3 min;최가유상조직유도여증식적배양기배방분별위:MS +6-BA 1.0 mg/L + NAA 1.7 mg/L、MS +6-BA 1.0 mg/L + IBA 0.06 mg/L;수차사용 AgNO3,획득최가불정아유도배양기배방:MS +6-BA 1.5 mg/L+ NAA 0.01 mg/L + AgNO31 mg/L;불정아증식최가배양기배방위:MS +6-BA 1.0 mg/L + IBA 0.05 mg/L + Vc 5.0 mg/L;최가불정아생근방안위:선택2.1~3.0 cm 적불정아,보류2~4협편,접충지1/2 MS + IBA 4.5 mg/L 배양기。종이건립료효과은정적완정홍계목고효재생체계,위홍계목공엄화육묘급전기인체계건립전정기출。
Loropetalum chinense var. rubrum is a kind of evergreen shrub which has great ornamental value. Using stems and leaves as explant, the high-efficient regeneration system of L. chinense var. rubrum was researched by optimizing the medium type and hormone combination in induction and multiplication of callus, induction and rooting of adventitious buds. The results show that the optimal sterilizing conditions was: disinfected twice with 0.1% HgCl2 sterilization each lasted 3 minutes; the optimal mediums for callus induction and multiplication were: MS+6-BA 1.0 mg/L+NAA1.7 mg/L and MS + 6-BA 1.0 mg/L+ IBA 0.06 ~ 0.08 mg/L, respectively; By introducing AgNO3 firstly, the optimal medium for adventitious bud induction was confirmed as: MS + 6-BA 1.5 mg/L+NAA 0.01 mg/L + AgNO3 1 mg/L; the optimal medium of adventitious bud multiplication was: MS + 6-BA 1.0 mg/L + IBA 0.05 mg/L+ Vc 5.0 mg/L. The optimal program for rooting of adventitious bud is as follows steps: choosing 2.1~3.0 cm tall buds with 2~4 leaves and inoculating to the medium 1/2 MS + IBA 4.5 mg/L. Thereby, the high-efficient regeneration system of L. chinense var. rubrum was established, and this system provide a basis for establishing the transgenic system and implementing industrialized breeding and seedling.