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养马岛附近海域藻华期间有色溶解有机质的生物可利用性研究 期刊论文
海洋科学, 2023, 卷号: 47, 期号: 6, 页码: 30-41
作者:  吕孝清;  高学鲁;  赵建民;  刘永亮;  王斌;  杨波;  谢磊;  张乃星
收藏  |  浏览/下载：92/0  |  提交时间：2023/11/15
absorption spectrum  EEMs-PARAFAC  chromophoric dissolved organic matter (CDOM)  bioavailability  phytoplankton  吸收光谱  EEMs-PARAFAC  有色溶解有机质(CDOM)  生物可利用性  浮游植物  
基于紫外吸收光谱法的海水硝酸盐快速测量系统研究 学位论文
专业硕士, 中国科学院烟台海岸带研究所: 中国科学院烟台海岸带研究所, 2021
作者:  侯耀斌
Adobe PDF(3193Kb)  |  收藏  |  浏览/下载：299/1  |  提交时间：2021/06/24
海水，硝酸盐，紫外吸收光谱，光学，原位监测仪  
无权访问的条目 学位论文
作者:  李瑞杰
收藏  |  浏览/下载：5/1  |  提交时间：2020/06/28
禾本科作物小麦能吸收和积累聚苯乙烯塑料微球 期刊论文
科学通报, 2020, 卷号: 65.0, 期号: 020, 页码: 2120-2127
作者:  李瑞杰;  李连祯;  张云超;  杨杰;  涂晨;  周倩;  李远;  骆永明
Adobe PDF(2104Kb)  |  收藏  |  浏览/下载：468/180  |  提交时间：2021/06/16
小麦幼苗  聚苯乙烯微球  砂培  吸收  积累  
禾本科作物小麦能吸收和积累聚苯乙烯塑料微球 期刊论文
科学通报, 2020, 卷号: 65, 期号: 20, 页码: 2120-2127
作者:  李瑞杰;  李连祯;  张云超;  杨杰;  涂晨;  周倩;  李远;  骆永明
浏览  |  Adobe PDF(2104Kb)  |  收藏  |  浏览/下载：432/170  |  提交时间：2021/12/01
小麦幼苗  聚苯乙烯微球  砂培  吸收  积累  
基于神经网络模型的海水硝酸盐测量方法研究 期刊论文
光谱学与光谱分析, 2020, 卷号: 40, 期号: 10, 页码: 3211-3216
作者:  侯耀斌;  冯巍巍;  蔡宗岐;  王焕卿;  刘增东
浏览  |  Adobe PDF(1887Kb)  |  收藏  |  浏览/下载：350/154  |  提交时间：2021/12/01
紫外吸收光谱  海水  硝酸盐  神经网络  光谱分析  原位传感器  
食用蔬菜能吸收和积累微塑料 期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
收藏  |  浏览/下载：493/0  |  提交时间：2020/06/17
微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.  
东黄渤海11 - 12月有色溶解有机质的分布特征 期刊论文
海洋环境科学, 2019, 卷号: 38, 期号: 6, 页码: 905-910
作者:  梁文健;  秦礼萍;  刘兆冰;  唐建辉
浏览  |  Adobe PDF(3304Kb)  |  收藏  |  浏览/下载：551/228  |  提交时间：2020/07/08
有色溶解有机物  溶解有机碳  渤海  黄东海  吸收光谱  平面分布  Colored Dissolved Organic Matter  Dissolved Organic Carbon  The Bohai Sea  The Yellow And East China Seas  Uv-vis Spectral  Distribution  
渤海和北黄海有色溶解有机物(CDOM)的分布特征和季节变化 期刊论文
环境科学, 2018, 卷号: 40, 期号: 03, 页码: 1198-1207
作者:  刘兆冰;  梁文健;  秦礼萍;  唐建辉
浏览  |  Adobe PDF(1171Kb)  |  收藏  |  浏览/下载：535/204  |  提交时间：2020/07/08
有色溶解有机物(CDOM)  紫外-可见光吸收光谱  三维荧光光谱(EEM)  平行因子分析  分布特征  季节变化  渤海和北黄海  
重组别藻蓝蛋白三聚体结构与功能 期刊论文
科学通报, 2017, 卷号: 62, 期号: 16, 页码: 1699-1713
作者:  李文军;  蒲洋;  牛壮;  薛春岭;  秦松
收藏  |  浏览/下载：182/0  |  提交时间：2020/07/07
recombinant allophycocyanin trimer  exciton-coupled pairs  absorption spectrum  fluorescence spectrum  circular dichroism spectra  conformational stability  重组别藻蓝蛋白三聚体  激子耦合对  吸收光谱  荧光光谱  圆二色谱  构象稳定性