https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2014, Vol. 41 ›› Issue (1): 131-138.

• 观赏植物 • 上一篇    下一篇

纳米银处理减轻香石竹切花细菌性茎堵塞的研究

刘季平1,2,张昭其2,李红梅1,冼锡金1,黄新敏1,何生根1,*   

  1. 1仲恺农业工程学院生命科学学院,广州 510225;2 华南农业大学园艺学院,广州 510642
  • 出版日期:2014-01-25 发布日期:2014-01-25
  • 基金资助:

    国家自然科学基金项目(31071829,31272193);广东省自然科学基金项目(10151022501000035,S2012010010418);广东
    高校优秀青年创新人才培育计划项目(2012LYM0079)

Nano-silver Treatments Alleviated Bacterial Blockage in Cut Carnation Stems

LIU Ji-ping1,2,ZHANG Zhao-qi2,LI Hong-mei1,XIAN Xi-jin1,HUANG Xin-min1,and HE Sheng-gen1,*   

  1. 1 College of Life Sciences,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;2College of
    Horticulture,South China Agricultural University of Horticulture,Guangzhou 510642,China
  • Online:2014-01-25 Published:2014-01-25

摘要: 探讨了新型抗菌剂纳米银(nano-silver,NS)处理对香石竹‘Master’切花的保鲜作用及其
减轻切花细菌性茎堵塞的效果。结果表明,用150 ~ 300 mg · L-1 NS 溶液预处理香石竹切花茎基端1 h 后
再瓶插于去离子水中,可延长切花的瓶插寿命和促进瓶插期间花径增大,并改善切花的水分吸收和维持
切花的鲜样质量,其中以250 mg · L-1 NS 处理效果最佳;进一步研究发现,250 mg · L-1 NS 处理可显著延
缓香石竹切花茎末端水分导度的降低。采用电感耦合等离子体发射光谱(ICP-AES)法测定NS 在香石竹
切花体内分布和变化特点表明,经250 mg · L-1 NS 预处理1 h 后,整个瓶插期间NS 主要集中在香石竹切
花的茎末端。此外,通过扫描电镜观察证实,该处理可显著减轻香石竹切花细菌性茎堵塞的发生。

关键词: 香石竹, 切花, 瓶插, 纳米银, 抗菌作用, 茎堵塞

Abstract: The preservation effects of pretreatment with nano-silver(NS),a new-type anti-bacterial
agent,on cut carnations(Dianthus caryphyllus‘Master’),and its efficacy in alleviating bacterial blockage
in their stems were investigated. The results showed that pretreatment with 150–300 mg · L-1 NS for 1 h
to cut carnations before placed in vases containing de-ioned water could significantly prolong their vase
life,increase the flower diameter,improve water uptake,and maintain relative fresh mass. The best
concentration of NS was 250 mg · L-1. It was also found that pretreatment with 250 mg · L-1 NS could
significantly delay the decline in hydraulic conductance in the stem-ends of cut carnations. Further
determination using Inductively Coupled Plasma-Atomic Emission Spectrometry demonstrated that NS
mostly remained within the lowermost part of the cut carnation stem throughout the vase period. In
addition,the observation results of Scanning Electron Microscopy certified that pretreatment with 250
mg · L-1 NS could effectively alleviate bacterial blockage in stem-ends of cut carnations.

Key words: Dianthus caryphyllus, cut flower, nano-silver, antibacterial effect, stem-blockage

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