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| 猕猴桃冷藏期不同组织区光合色素、叶绿体细胞学及其光合放氧的变化 | |
| 引用本文： | 郭学民,王贵禧,高荣孚. 猕猴桃冷藏期不同组织区光合色素、叶绿体细胞学及其光合放氧的变化[J]. 林业科学, 2010, 46(4) |
| 作者姓名： | 郭学民 王贵禧 高荣孚 |
| 作者单位： | 1. 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京,100091;河北科技师范学院生命科学系,秦皇岛,066600;北京林业大学生物科学与技术学院,北京,100083 2. 中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京,100091 3. 北京林业大学生物科学与技术学院,北京,100083 |
| 基金项目： | 国家自然科学基金项目(30771754) |
| 摘 要： | 研究‘秦美’猕猴桃冷藏期外果肉、内果肉和中轴胎座3个组织区的光合色素、叶绿体细胞学及其光合放氧的变化特征。结果表明:‘秦美’猕猴桃果实各组织区光合色素的组分随着果实的冷藏处于动态变化之中;在冷藏各时期叶绿素(Chl)和(或)脱植基叶绿素的存在使果实始终呈现绿色;同一组织区Chla,Chlb和Chl(a+b)含量随着冷藏时间延长而逐渐减少,Chla/b则上升;在同一冷藏时期,各组织区Chla,Chlb和Chl(a+b)含量高低为外果肉>内果肉>中轴胎座。冷藏开始,在显微镜明场下各组织区叶绿体均呈不规则球形,在荧光显微镜下则呈蜂窝状,一些淀粉粒从叶绿体中散落出来;随着冷藏时间延长,各组织区叶绿体数量减少,体积变小,淀粉粒水解,片层结构崩解;冷藏30天时,叶绿体淀粉粒数量明显变少,常见片层结构残迹。随着冷藏时间延长,各组织区光合放氧速率均下降,同一时期各冷藏时间光合放氧速率为外果肉>内果肉>中轴胎座。表明在冷藏过程中,猕猴桃各组织区的光合色素、叶绿体形态结构和光系统Ⅱ光合放氧是有差异的。 |
| 关 键 词： | 猕猴桃 果实组织区 光合色素 叶绿体 光合放氧 |
Changes of Photosynthetic Pigments, Chloroplast Cytology and Its Photosynthetic Oxygen Evolution in Different Tissue Zone of Kiwifruit During Cold Storage Period |
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| Guo Xuemin,Wang Guixi,Gao Rongfu. Changes of Photosynthetic Pigments, Chloroplast Cytology and Its Photosynthetic Oxygen Evolution in Different Tissue Zone of Kiwifruit During Cold Storage Period[J]. Scientia Silvae Sinicae, 2010, 46(4) | |
| Authors: | Guo Xuemin Wang Guixi Gao Rongfu |
| Affiliation: | 1. Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry/a>;CAF Beijing 100091/a>;2. Department of Life Science/a>;Hebei Normal University of Science and Technology Qinhuangdao 066600/a>;3. College of Life Science and Technology/a>;Beijing Forestry University Beijing 100083 |
| Abstract: | The variation characteristics of photosynthetic pigments,chloroplast cytology and its photosynthetic oxygen evolution rate were investigated in outer pericarp ( OP),inner pericarp ( IP) and axile placenta ( AP) of Actinidia deliciosa 'Qinmei'fruit during cold storage,obtain basic knowledge of quality keeping in process of cold storage. The results showed that the composition of photosynthetic pigments in each tissue zone changed with the time of refriferation. The presence of Chl and (or) chlide make the pu... |
| Keywords: | kiwifruit fruit tissue zone photosynthetic pigment chloroplast photosynthetic oxygen evolution |
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