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林业科学 ›› 2004, Vol. 40 ›› Issue (5): 79-83.doi: 10.11707/j.1001-7488.20040512

• 论文及研究报告 • 上一篇    下一篇

平阴玫瑰鲜花花蕾采后衰老生理机制研究

孙守家 赵兰勇 仇兰芬 于守超 赵汝侍   

  1. 中国农业大学观赏园艺与园林系,北京100094;山东农业大学林学院,泰安271018;青岛职业技术学院,青岛266555;山东平阴玫瑰研究所,平阴250400
  • 收稿日期:2003-03-07 修回日期:1900-01-01 出版日期:2004-09-25 发布日期:2004-09-25

Study on the Physiological Mechanism of Postharvest Senescence in Flower Buds of Rosa rugosa Cultivars in Pingyin County

Sun Shoujia,Zhao Lanyong,Qiu Lanfen,Yu Shouchao,Zhao Rushi   

  1. Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University\ Beijing100094;College of Forestry, Shandong Agricultural University Tai'an271018;Qingdao Vocational and Technical College Qingdao266555;Research Institute of Pingyin Rose Pingyin250400
  • Received:2003-03-07 Revised:1900-01-01 Online:2004-09-25 Published:2004-09-25

摘要:

对平阴玫瑰鲜花花蕾衰老过程中若干重要生理生化指标进行了测定研究,结果表明:蛋白质含量、SOD和CAT活性前期上升后期下降,质膜透性、MDA、超氧自由基产生速率随着花蕾的衰老而增大,POD的活性始降期出现得较晚。相关性分析表明,蛋白质和质膜透性、MDA、超氧自由基、SOD、CAT之间存在显著的相关关系,初步认为膜脂过氧化和酶系统的破坏是导致平阴玫瑰花蕾衰老的主要生理原因之一。

关键词: 平阴玫瑰, 花蕾, 采后, 衰老, 生理机制

Abstract:

Several important physiological and biochemical factors in the senescence process of flower buds of Rosa rugosa cultivars in Pingyin County were tested. The results indicated that the content of protein and the activity of SOD and CAT showed an early increasing and later decreasing trend. The membrane permeability, MDA content and O-·2 production rate increased as the progress was developing. The time of initial decreasing point of POD activity appeared later than that of other factors. The result of correlation analysis showed that protein was strongly related with factors of membrane permeability, MDA, O-·2,SOD and CAT. The membrane lipid peroxidation and enzyme system detriment were primarily considered to be the major physiological factors in postharvest senescence in flower buds of R.rugosa cultivars in Pingyin County.

Key words: Rosa rugosa cultivars in Pingyin County, Flower buds, Postharvest, Senescence, Physiological mechanism