中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 早春地被植物紫花地丁对低温耐受性的研究 北方园艺 2016 (13) 65-69
Position: Home > Articles > Study of Tolerance to Low Temperature in Viola philippica,an Early Spring Cover Plant Northern Horticulture 2016 (13) 65-69

早春地被植物紫花地丁对低温耐受性的研究

作  者：
常立博;贾凌云;苏雪;秦晶晶;孙坤
单  位：
西北师范大学生命科学学院
关键词：
紫花地丁;组培苗;低温;生理学变化;耐受性
摘  要：
以紫花地丁组培苗为试材,研究了紫花地丁在不同温度(16、10、4℃)处理下的生理指标的变化,探讨了紫花地丁对早春低温环境的耐受性,为紫花地丁在城市早春绿化中的应用提供依据。结果表明:在16、10、4℃处理下,随着处理时间的增加,紫花地丁组培苗丙二醛(MDA)含量均表现出先上升后下降最后趋于稳定的趋势,超氧化物歧化酶(SOD)活性则表现出先下降后上升最后趋于稳定的趋势,表明在低温下膜系统受到了一定的伤害,但组培苗通过提高自身抗氧化能力,减轻了低温环境对自身的伤害。不同温度处理均影响组培苗叶绿素含量,4℃处理下影响更为明显,但紫花地丁可在一定程度上恢复其叶绿素含量。上述温度处理下,Fo较未处理时均无明显变化,Fv/Fm整体均呈下降趋势,但随着处理时间的延长,Fv/Fm出现了波动和回升,表明低温对PSⅡ反应中心产生了的一定损害,但这种损害可能是可逆的;qP值较未处理时皆有所下降,但随着处理时间的延长qP值出现起伏波动和回升现象,而qN值较未处理时均有所升高,表明了紫花地丁在低温环境下可通过增强接收电子的能力和增加光合系统的热耗散来减轻低温环境对自身的伤害。上述生理指标变化表明紫花地丁对低温(4~16℃)具有较好的耐受性。
译  名：
Study of Tolerance to Low Temperature in Viola philippica,an Early Spring Cover Plant
作  者：
CHANG Libo;JIA Lingyun;SU Xue;QIN Jingjing;SUN Kun;College of Life Science,Northwest Normal University;
关键词：
Viola philippicatissue cultured seedling;;low temperature;;physiological changes;;tolerance
摘  要：
The physiological changes of Viola philippica(an early spring covered plant)were detected to study its tolerance to low temperature environment.The results showed that with the increase of treatment time,the content of MDA increased at first and decreased subsequently going stable finally at 16 ℃,10 ℃ and 4 ℃,respectively.However,the activity of SOD showed the opposite trend,indicating that the tissue cultured seedling of V.philippica had capacity to improve the harmfulness of cold environment although the membrane system was injured to some extent.The chlorophyll content of tissue cultured seedlings was affected at different temperatures especially at 4℃,but could be recovered to some extent.Under the treatment low temperature at 16℃,10℃and 4℃,respectively,Foshowed no significant change compared with different temperature treatment while Fv/Fmdecreased.With the extension of treatment time,the increasing of Fv/Fmindicated that low temperature had a reversible harm to PSII reaction center.The qPvalue firstly decreased then recovered to some extent and qNvalue increased indicating that V.philippicaimproved the capacity of receiving electron and its photosynthetic system of heat dissipation to improve the injury of low temperature.All of the physiological changes under low temperature(4~16℃)implied the tissue cultured seedlings of V.philippicahad tolerance to low temperature.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46