Influences of PGR, sucrose, and ammonium nitrate on in vitro flowering and fruiting from cotyledon explants of P. frutescens were studied. The regenerated shoots at 2-4. cm from cotyledon explants on MS medium supplem...Influences of PGR, sucrose, and ammonium nitrate on in vitro flowering and fruiting from cotyledon explants of P. frutescens were studied. The regenerated shoots at 2-4. cm from cotyledon explants on MS medium supplemented with 0.5 mg L^-1 BA and 1.0 mg L^-1IAA were excised and transferred to MS medium containing 30 g L^-1 sucrose, 8.25 g L^-1 ammonium nitrate, and 1.0 mg L^-1 BA. Following 40 d of culture, 86.2% of them flowered and set seeds. These seeds were germinable and developed into flowering plants in the fields. This study provides a simple system for rapid breeding of P. frutescens and studying the physiological mechanism of flowering of plants.展开更多
目的:观察中西医结合治疗慢性阻塞性肺疾病急性加重期(Acute exacerbation of chronic obstructive pulmonary disease,AECOPD)的临床疗效。方法:选取符合诊断标准的56例AECOPD患者,随机分为对照组和观察组,每组各28例。对照组仅给予常...目的:观察中西医结合治疗慢性阻塞性肺疾病急性加重期(Acute exacerbation of chronic obstructive pulmonary disease,AECOPD)的临床疗效。方法:选取符合诊断标准的56例AECOPD患者,随机分为对照组和观察组,每组各28例。对照组仅给予常规西医治疗,观察组在对照组的基础上加用苏子降气汤治疗。观察两组患者的临床疗效,记录两组患者治疗前后动脉CO_2分压(PaCO_2)、动脉O_2分压(PaO_2)、一秒用力呼气容积(Forced expiratory volume in one second,FEV1)变化情况。结果:对照组有效率为71.43%,观察组有效率为92.86%,两组患者临床疗效比较,差异具有统计学意义(P<0.05)。两组患者治疗后PaO_2、PaCO_2、FEV1改善情况优于治疗前,且观察组优于对照组,差异均有统计学意义(P<0.05)。结论:中西医结合治疗AECOPD临床疗效显著,可改善患者肺通气功能,减少咳嗽、咳痰等症状。展开更多
基金supported by the Science Foundation Project of Chongqing Normal University and Gansu Province,China(QS041-C31-09).
文摘Influences of PGR, sucrose, and ammonium nitrate on in vitro flowering and fruiting from cotyledon explants of P. frutescens were studied. The regenerated shoots at 2-4. cm from cotyledon explants on MS medium supplemented with 0.5 mg L^-1 BA and 1.0 mg L^-1IAA were excised and transferred to MS medium containing 30 g L^-1 sucrose, 8.25 g L^-1 ammonium nitrate, and 1.0 mg L^-1 BA. Following 40 d of culture, 86.2% of them flowered and set seeds. These seeds were germinable and developed into flowering plants in the fields. This study provides a simple system for rapid breeding of P. frutescens and studying the physiological mechanism of flowering of plants.
文摘目的:观察中西医结合治疗慢性阻塞性肺疾病急性加重期(Acute exacerbation of chronic obstructive pulmonary disease,AECOPD)的临床疗效。方法:选取符合诊断标准的56例AECOPD患者,随机分为对照组和观察组,每组各28例。对照组仅给予常规西医治疗,观察组在对照组的基础上加用苏子降气汤治疗。观察两组患者的临床疗效,记录两组患者治疗前后动脉CO_2分压(PaCO_2)、动脉O_2分压(PaO_2)、一秒用力呼气容积(Forced expiratory volume in one second,FEV1)变化情况。结果:对照组有效率为71.43%,观察组有效率为92.86%,两组患者临床疗效比较,差异具有统计学意义(P<0.05)。两组患者治疗后PaO_2、PaCO_2、FEV1改善情况优于治疗前,且观察组优于对照组,差异均有统计学意义(P<0.05)。结论:中西医结合治疗AECOPD临床疗效显著,可改善患者肺通气功能,减少咳嗽、咳痰等症状。
