对马耳蕨配子体不同发育阶段的光合作用特性  

Photosynthesis characteristics of Polystichum tsus-simense gametophyte during its different development stages

作　　者：敖金成[1,2] 苏文华[1] 张光飞[1] 潘燕[1] 姜维[1] 郭晓荣[1] 周睿 

机构地区：[1]云南大学生态学与地植物学研究所,云南昆明650091 [2]云南瑞升烟草技术(集团)有限公司,云南昆明650106

出　　处：《云南大学学报（自然科学版）》2012年第6期717-721,730,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金项目资助(30760043);云南省基础研究项目资助(2010ZC008);云南省国际河流与跨境生态安全重点实验室开放基金项目资助(WX092393);云南大学研究基金项目资助(2010YB003)

摘　　要：以喜阴植物对马耳蕨成熟孢子为材料,研究了对马耳蕨配子体发育4个阶段叶绿素荧光特性.结果表明:从孢子萌发到原叶体阶段,最大荧光(Fm)、初始荧光(F0)、最大光能转化效率(Fv/Fm)、有效光化学量子产量(F'v/F'm)、PSⅡ潜在活性(Fv/F0)、实际光量子产量(Yield)及光化学萃灭系数(qP)均与发育进程极显著正相关(p<0.001),非光化学淬灭系数(qN)与发育进程负相关,差异不显著(p>0.05).说明对马耳蕨配子体发育不同阶段荧光特性存在异质性,配子体随发育进程光能转化效率逐渐提高,光合能力逐渐增强.The chlorophyll fluorescence characteristics of four development stages of Polystichum tsus - si- mense （ Hook. ） J. Smith gametophyte were studied. The results showed that parameters of chlorophyll fluorescence Fm ,F0 ,Fv/Fm, F＇v/F＇m ,Fv/F0 ,yield and qp were significant positive correlated （p 〈0. 001 ） to different devel- opment stages from germination to prothallus, difference （p 〉 0.05 ）. These results suggested while qN was negative correlated that the chlorophyll fluorescence which did not show significant characteristics are heterogenous during different development stages of P. tsus - simense gametophyte. The efficiency of light energy conversion of PS lI reaction center and photosynthetic capacity gradually increase by development processing.

关 键 词：配子体 孢子发育 对马耳蕨 叶绿素荧光 光合作用 

分 类 号：Q945.79[生物学—植物学]