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刺激响应分子印迹聚合物的制备与应用 期刊论文
海岸科学, 2022, 卷号: 9, 期号: 2, 页码: 24-39
Authors:  陈 璇;  付信悦;  孙大妮;  纪 灵;  于佳洛;  王莉燕;  周 娜;  陈令新;  李金花
Adobe PDF(4274Kb)  |  Favorite  |  View/Download:92/0  |  Submit date:2022/11/16
分子印迹聚合物  刺激响应  制备策略  应用  
人参皂苷类化合物样品前处理及分析检测 期刊论文
化学进展, 2020, 卷号: 32, 期号: 2/3, 页码: 239-248
Authors:  宋志花;  李盛红;  杨刚强;  周娜;  陈令新
View  |  Adobe PDF(748Kb)  |  Favorite  |  View/Download:362/164  |  Submit date:2020/07/08
人参皂苷  样品前处理  分析方法  Ginsenosides  Sample Pretreatment  Analysis Methods  
人参皂苷类化合物样品前处理及分析检测 期刊论文
化学进展, 2020, 卷号: 32, 期号: 2-3, 页码: 239-248
Authors:  宋志花;  李盛红;  杨刚强;  周娜;  陈令新
View  |  Adobe PDF(748Kb)  |  Favorite  |  View/Download:172/81  |  Submit date:2021/12/01
人参皂苷  样品前处理  分析方法  
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
Authors:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
Favorite  |  View/Download:341/0  |  Submit date: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.  
农业科研事业单位项目经费管理与对策建议 期刊论文
管理观察, 2018, 期号: 17, 页码: 165-166
Authors:  刘翠玲;  周雪菲;  马雪飞;  陈娜
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农业科研  事业单位  项目经费  管理  
种子引发对甜高粱和玉米种子耐盐性的影响 期刊论文
种子, 2015, 期号: 6, 页码: 72-77
Authors:  王莉;  管博;  周沫;  于君宝;  张晓龙;  尹娜;  王栋
View  |  Adobe PDF(606Kb)  |  Favorite  |  View/Download:652/280  |  Submit date:2016/12/15
M-81e甜高粱  郑单958玉米  盐胁迫  种子引发  种子活力