氯化胆碱浸种对烟草幼苗某些生理特性的影响  

Effects of Seed Soaking in Choline Chloride Solution on Some Physiological Characteristics of Tobacco Seedlings

作　　者：张燕[1] 方力[1] 李天飞[1] 姚照兵[1] 

机构地区：[1]云南烟草科学研究院生物技术重点实验室,昆明650106

出　　处：《植物生理学通讯》2004年第2期164-166,共3页Plant Physiology Communications

摘　　要：烟草种子经氯化胆碱(CC)溶液浸种后,萌发种子的呼吸速率和a-淀粉酶活性提高,烟苗茎高和根系伸长受抑制,但根系活力和单位长度内苗干重显著增加;幼苗叶片中可溶性糖、可溶性蛋白质和叶绿素含量提高;超氧化物歧化酶(SOD)、过氧化物酶(POD)和硝酸还原酶(NR)活性也随氯化胆碱浓度的增大而明显提高。After the tobacco seeds were soaked in choline chloride (CC) solution with different concentrations, thevitality of roots and dry weight of seedlings in unit length were increased while the height of seedlings and lengthof radicle were decreased. It also could increase respiration rate and a-amylase activity of germinating seeds, thecontents of soluble sugar and protein and chlorophyll in seedlings.The activities of superoxide dismutase (SOD),peroxidase (POD) and nitratase (NR) in leaves increased with increasing of concentrations of CC.

关 键 词：氯化胆碱 浸种 烟草 幼苗 生理特性 呼吸速率 Α-淀粉酶活性 根系活力 

分 类 号：S572[农业科学—烟草工业]