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Position: Home > Articles > Response Surface Optimization of Culture Conditions for the Formation of Early Embryos in Larix olgensis Bulletin of Botanical Research 2017 (4) 613-620

响应面优化长白落叶松体胚形成早期培养条件的研究

作  者:
宋跃;李淑娟;白晓明;张含国
单  位:
东北林业大学林木遗传育种国家重点实验室
关键词:
落叶松属;长白落叶松;响应面优化;体胚发生;胚胎形成早期
摘  要:
以长白落叶松胚性愈伤组织为材料,通过Box-Behnken Design设计试验,建立以体胚发生量为响应值的响应面模型,优化长白落叶松体胚形成早期的培养条件。结果表明:相对离子浓度(P=0.007)、肌醇浓度(P=0.000)、培养周期(P=0.000)、肌醇浓度与培养周期的交互作用(P=0.007)对长白落叶松体细胞胚胎发生量的影响极为显著。长白落叶松体胚形成早期的最适培养条件为:相对离子浓度26.767 7%BM、肌醇浓度10.454 5g·L~(-1)、培养周期12.656 6 d,预测体细胞胚胎的发生量为337.04个·g~(-1)。为便于实际操作,验证试验将培养条件调整为:离子浓度25%BM、肌醇浓度10 g·L~(-1)、培养周期13 d,体胚平均发生量为336.46个·g~(-1),与预测值336.29个·g~(-1)基本一致,体胚萌发率与生根率分别达100%和83.33±5.78%,与前期试验相比,长白落叶松体胚发生的数量和质量均有显著提高。
译  名:
Response Surface Optimization of Culture Conditions for the Formation of Early Embryos in Larix olgensis
作  者:
SONG Yue;LI Shu-Juan;BAI Xiao-Ming;ZHANG Han-Guo;State Key Laboratory of Tree Genetics and Breeding,Northeast Forestry University;
关键词:
Larix;;Larix olgensis;;response surface optimization;;somatic embryogenesis;;early embryo formation
摘  要:
With the larch embryogenic callus,through the Design Box-Behnken design test,we established a response surface model based on the somatic embryogenesis. The culture conditions of somatic embryo early maturation was optimized in Larix olgensis. The relative ion concentration( P = 0. 007), the inositol concentration( P = 0. 000),the culture period( P = 0. 000) and the interaction between inositol content and culture period( P = 0. 007) effect on the number of somatic embryos of L. olgensis were extremely significant.Cultivation of Larix somatic embryo maturation was 337. 04 ind · g~(-1)at the early stage of the most optimum conditions for relative ion content of 26. 767 7% BM basic culture medium,inositol 10. 454 5 g·L~(-1),culture time 12. 656 6 d,and the number of somatic embryos average. In order to facilitate the practical operation,the culture condition was changed to the relative ion concentration of 25% BM,inositol 10 g · L~(-1),incubation period of 13 d,then the average number of somatic embryos was 336. 46 ind·g~(-1),that was consistent with the predicted value 336. 29 ind·g~(-1). Compared with previous test,the quantity and quality of L. olgensis somatic embryos were increased significantly.

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