红王子锦带离体快繁研究

以红王子锦带的当年生幼嫩茎段为外植体，研究了基本培养基、植物生长调节剂种类和浓度对茎芽增殖、生长以及对生根诱导的影响。结果表明：适合红王子锦带增殖和生长的基本培养基为MS；继代增殖培养时，MS培养基中附加6-BA2．5mg／1时，平均有效芽数达到3个以上，高生长和强壮度都好于附加KT；附加6-BA2．5mg／1的MS培养基中添加0．05mg／1NAA对芽数和芽长均有促进作用；在WPM培养基上附加NAA0．1mg／1、IBA0．05mg／1和蔗糖20g／1，生根率高，根系发育良好。     

A case example of one state's efforts to measure and address the critical shortage of school psychologists

Despite persistent calls for school psychologists to provide comprehensive and integrated services, school psychologists may have difficulty providing these services because of critical shortages in the profession. This practical action research study involved surveying district supervisors of school psychologists and training program directors in the state to identify the current and projected shortages in Florida. This multimethod, multi‐informant case example also focused on facilitators of and barriers to addressing the critical shortage. How the data have been used to inform recruitment, retention, and advocacy efforts to identify school psychology as a critical shortage legislatively are provided as well as recommendations for future research.     

锦带花乙酸乙酯提取物化学成分研究

本文主要对锦带花乙酸乙酯提取物化学成分进行研究。采用醇提法提取锦带花中的化学成分,并依次用石油醚、乙酸乙酯、正丁醇萃取,通过柱色谱,薄层制备色谱,凝胶柱色谱及重结晶等方法对乙酸乙酯提取物进行分离纯化。得到5个化合物,分别鉴定为:槲皮素(quercetin,I),原儿茶酸(protocatechuic,II),莨菪亭(Scopoletin,III),6-甲氧基-7-氧代异戊烯基香豆素(6-methoxy-7-oxo isopentenyl coumarin,IV),β-谷甾醇(β-sitosterol,V),以上化合物均首次从该种植物得到。