科研产出
邓恩桉下胚轴不定芽再生体系建立的影响因素
《江西农业学报 》 2016
摘要：以邓恩桉种子萌发的实生苗下胚轴为材料,研究了不同激素种类与浓度及多胺对下胚轴经愈伤组织阶段产生不定芽过程的影响,以建立一种下胚轴不定芽再生快繁体系。结果表明,以MS为基本培养基,在培养基中添加2,4-D 1.0~1.5 mg/L可诱导邓恩桉下胚轴产生高质量的愈伤组织;愈伤组织增殖的适宜培养基为MS+TDZ 0.5~1.0 mg/L,愈伤分化产生不定芽的适合培养基为MS+TDZ 1.0 mg/L+腐胺15~25 mg/L,愈伤不定芽分化率达77.1%~79.2%,且外植体褐化率得以降低。愈伤组织块移入分化培养基初期,3~7 d暗培养可使愈伤不定芽分化率提高到82.8%以上。
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鸦胆子愈伤组织提取物的杀虫活性研究
《农业科学与技术(英文版) 》 2008
摘要：[Objective] The research aimed to lay a foundation for the screening of cell lines producing secondary metabolites of Brucea javanica(L.)Merr.[Method] The insecticidal activities of the extracts from branch and 3 different types of calluses of Brucea javanica(L.)Merr.was detected through methods of leaf disc and potted seedlings against the diamond back moth.[Result] Extracts from four kinds of Brucea javanica(L.)Merr.tissues assumed both the activities of antifeedant and oviposition deterrency against the ...
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