果树学报
果樹學報
과수학보
JOURNAL OF FRUIT SCIENCE
2007年
2期
218-221
,共4页
狗枣猕猴桃%不定芽%体细胞胚%2,4-D%玉米素
狗棘獼猴桃%不定芽%體細胞胚%2,4-D%玉米素
구조미후도%불정아%체세포배%2,4-D%옥미소
Actinidia kolomikta%Adventitious buds%Somatic embryos%2,4-D%Zeatin
以狗枣猕猴桃试管苗的叶片为外植体,接种于含3%蔗糖和0.2%Gelrite的BW培养基上,外加2,4-D(0,0.1,1和10μmol/L)与玉米素(0,1和10μmol/L)的12种激素组合,置于25℃,光周期为16/8 h,光照强度为4000lx的条件下培养.在含1或10μmol/L 2,4-D与1或10μmol/L玉米素组合的BW培养基上,产生了体细胞胚,并分化出小植株.随着玉米素浓度的增加,每个外植体上的胚再生频率和体细胞胚的数量也随之增加.同时以叶片为外植体产生的狗枣猕猴桃试管苗的愈伤组织表层产生了不定芽,并抽长成枝.发枝率随着玉米素浓度的增加而增加,并受高浓度的2,4-D所抑制.枝芽转接到含1μmol/L NAA的BW培养基上生根,长成小植株.
以狗棘獼猴桃試管苗的葉片為外植體,接種于含3%蔗糖和0.2%Gelrite的BW培養基上,外加2,4-D(0,0.1,1和10μmol/L)與玉米素(0,1和10μmol/L)的12種激素組閤,置于25℃,光週期為16/8 h,光照彊度為4000lx的條件下培養.在含1或10μmol/L 2,4-D與1或10μmol/L玉米素組閤的BW培養基上,產生瞭體細胞胚,併分化齣小植株.隨著玉米素濃度的增加,每箇外植體上的胚再生頻率和體細胞胚的數量也隨之增加.同時以葉片為外植體產生的狗棘獼猴桃試管苗的愈傷組織錶層產生瞭不定芽,併抽長成枝.髮枝率隨著玉米素濃度的增加而增加,併受高濃度的2,4-D所抑製.枝芽轉接到含1μmol/L NAA的BW培養基上生根,長成小植株.
이구조미후도시관묘적협편위외식체,접충우함3%자당화0.2%Gelrite적BW배양기상,외가2,4-D(0,0.1,1화10μmol/L)여옥미소(0,1화10μmol/L)적12충격소조합,치우25℃,광주기위16/8 h,광조강도위4000lx적조건하배양.재함1혹10μmol/L 2,4-D여1혹10μmol/L옥미소조합적BW배양기상,산생료체세포배,병분화출소식주.수착옥미소농도적증가,매개외식체상적배재생빈솔화체세포배적수량야수지증가.동시이협편위외식체산생적구조미후도시관묘적유상조직표층산생료불정아,병추장성지.발지솔수착옥미소농도적증가이증가,병수고농도적2,4-D소억제.지아전접도함1μmol/L NAA적BW배양기상생근,장성소식주.
Leaf explants from Actinidia kolomikta were cultured on BW media containing 30 g/L sucrose and 2 g/L Gelrite and supplemented with different concentrations of 2,4-Dichlorophenoxyacetic acid (2,4-D) and Zeatin. Adventitious buds were generated from calli derived from leaf explants and developed into shoots. Shoot regeneration rate and the number of shoots regenerated increased with the increase in Zeatin concentration and decreased with the increase in 2,4-D concentration. Embryogenesis was achieved in the BW medium added with 1 μmol/L each of 2,4-D and Zeatin. Subculture of the embryogenic callus led to secondary embryogenesis with a high frequency of 66.7%. In rooting culture of shoots, roots formed directly from the basal portion of shoots on the medium containing 2,4-D or α-Naphthaleneacetic acid (NAA). Plants were successfully acclimatized to the field conditions with a survival rate of 100%.