本文主要研究内容
作者金泉,李鹏鹏,张瑞花,尹黎燕(2019)在《水菜花异形叶片叶绿素荧光特征与HCO3-利用能力的研究》一文中研究指出:以生长发育过程中具有异形叶的水生植物水菜花(Ottelia cordata (Wall.) Dandy)为材料,利用叶绿素荧光技术和pH-漂移(pH-drift)实验测定具有两型叶片的水菜花正常沉水叶(submerged leaves,S)、正常浮水叶(floating leaves,F)、处于淹没状态的浮水叶(submerged floating leaves,SF)以及只有浮水叶植株的浮水叶(floating leaves only,OF)的叶绿素荧光特征与HCO3-利用能力。快速光曲线分析结果显示:沉水叶(S)的相对电子传递速率(r ETR)显著低于其他类型的叶片,且随着光强的增强,差异增大;由光化学引起的荧光淬灭qP、潜在最大电子传递速率(r ETRmax)、半饱和光强(Ek)等指标均为沉水叶(S)显著低于浮水叶(F)。沉水叶(S)与淹没状态的浮水叶(SF)表征HCO3-利用能力的CT/Alk值显著低于两种浮水叶(F和OF)。研究结果表明水菜花成年期的浮水叶比幼年期的沉水叶具有更高的光合效率,并且更适合在高光强下生长;当水位发生波动时被淹没的浮水叶会增强对HCO3-的利用能力以适应淹水低浓度CO2环境。
Abstract
yi sheng chang fa yo guo cheng zhong ju you yi xing xie de shui sheng zhi wu shui cai hua (Ottelia cordata (Wall.) Dandy)wei cai liao ,li yong xie lu su ying guang ji shu he pH-piao yi (pH-drift)shi yan ce ding ju you liang xing xie pian de shui cai hua zheng chang chen shui xie (submerged leaves,S)、zheng chang fu shui xie (floating leaves,F)、chu yu yan mei zhuang tai de fu shui xie (submerged floating leaves,SF)yi ji zhi you fu shui xie zhi zhu de fu shui xie (floating leaves only,OF)de xie lu su ying guang te zheng yu HCO3-li yong neng li 。kuai su guang qu xian fen xi jie guo xian shi :chen shui xie (S)de xiang dui dian zi chuan di su lv (r ETR)xian zhe di yu ji ta lei xing de xie pian ,ju sui zhao guang jiang de zeng jiang ,cha yi zeng da ;you guang hua xue yin qi de ying guang cui mie qP、qian zai zui da dian zi chuan di su lv (r ETRmax)、ban bao he guang jiang (Ek)deng zhi biao jun wei chen shui xie (S)xian zhe di yu fu shui xie (F)。chen shui xie (S)yu yan mei zhuang tai de fu shui xie (SF)biao zheng HCO3-li yong neng li de CT/Alkzhi xian zhe di yu liang chong fu shui xie (Fhe OF)。yan jiu jie guo biao ming shui cai hua cheng nian ji de fu shui xie bi you nian ji de chen shui xie ju you geng gao de guang ge xiao lv ,bing ju geng kuo ge zai gao guang jiang xia sheng chang ;dang shui wei fa sheng bo dong shi bei yan mei de fu shui xie hui zeng jiang dui HCO3-de li yong neng li yi kuo ying yan shui di nong du CO2huan jing 。
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论文详细介绍
论文作者分别是来自植物科学学报的金泉,李鹏鹏,张瑞花,尹黎燕,发表于刊物植物科学学报2019年05期论文,是一篇关于水菜花论文,异形叶论文,叶绿素荧光论文,无机碳利用策略论文,适应性论文,植物科学学报2019年05期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自植物科学学报2019年05期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:水菜花论文; 异形叶论文; 叶绿素荧光论文; 无机碳利用策略论文; 适应性论文; 植物科学学报2019年05期论文;