NaN_3对玉米萌发过程中超弱光子辐射的影响  

Effect of NaN_3 on Ultra-weak Photon Emission during Germination of Corn

作　　者：赵燕燕[1] 习岗[1] 刘锴[1] 贺瑞瑞[1] 

机构地区：[1]西安理工大学应用物理系,西安710048

出　　处：《光子学报》2015年第4期193-198,共6页Acta Photonica Sinica

基　　金：国家自然科学基金(Nos.51277151;31471412);西安理工大学科技创新计划项目(No.2013CX019)资助

摘　　要：为了解读植物种子萌发过程中超弱光子辐射信息的生物学意义,采用呼吸抑制剂NaN3处理萌发玉米种子,跟踪测量和分析了玉米种子萌发过程中超弱光子辐射中自发光子辐射和外界光诱导的延迟光子辐射的变化规律,同时研究了萌发玉米种子鲜质量的变化.结果发现,NaN3同步抑制了萌发玉米自发光子辐射和鲜质量的增长,造成萌发玉米延迟光子辐射的初始光子数和延迟光子辐射积分强度大幅度降低,相干时间减小.机理分析表明,NaN3对呼吸代谢电子传递链的抑制造成的自由基反应减弱是萌发玉米自发光子辐射减小的原因,自发光子辐射强度可以作为玉米萌发状态的信号,延迟光子辐射动力学参数的大小可以表征萌发玉米呼吸代谢的强弱,相干时间是种子细胞组织序性的量度,通过对萌发种子超弱光子辐射的采集和分析可以实现对萌发种子细胞代谢和功能状态变化的灵敏和无损检测.In order to interpret the biological significance of ultra-weak photon emission during germination of plant seed,respiratory inhibitors NaN3 was used to treat germinating corn seed,spontaneous photon emission and delayed photon emission during germination of corn were tracked to measure and analyze,and the change of fresh quality of germinating corn was studied.The results showed that NaN3 inhibited the increase in spontaneous photon emission and fresh quality of germinating corns,caused a significant reduction in initial photon number and integral strength of delayed photon emission,the coherence time of delayed photon emission was also reduced.Mechanism analysis showed that the reduction of free radical reactions from respiratory electron transport chain caused by NaN3 was the reason about decrease of spontaneous photon emission in germinating corn,spontaneous photon emission intensity in germinating corn could be used as a signal to express the germination state of corn,the kinetic parameters of delayed photon emission could represent the strength of the respiratory metabolism during germination of corn,and coherence time could be used to measure the order of cell organization.Such,sensitive and nondestructive testing about the change of cell metabolism and functional status during seed germination could be realized through the collection and analysis of the ultra-weak photon emission in germinating seed.

关 键 词：超弱光子辐射 种子萌发 呼吸抑制剂 细胞代谢 无损检测 玉米 

分 类 号：O482.31[理学—固体物理] Q632[理学—物理]