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一株海洋类棘孢木霉化学成分与生物活性研究 学位论文
: 中国科学院大学, 2022
作者:  邹积雪
Adobe PDF(7809Kb)  |  收藏  |  浏览/下载：454/2  |  提交时间：2022/06/09
类棘孢木霉  次生代谢产物  生物活性  木霉菌剂  促生作用  Trichoderma asperelloides  Secondary metabolite  Biological activity  Trichoderma agent  Growth promotion  
土壤环境中微塑料污染:来源、过程及风险 期刊论文
土壤学报, 2021, 卷号: 58, 期号: 2, 页码: 281-298
作者:  杨杰;  李连祯;  周倩;  李瑞杰;  涂晨;  骆永明
浏览  |  Adobe PDF(4648Kb)  |  收藏  |  浏览/下载：1419/327  |  提交时间：2021/12/01
土壤环境  微塑料  环境风险  研究进展  重点方向  
环境中微塑料研究进展与展望 期刊论文
科学通报, 2021, 卷号: 66, 期号: 13, 页码: 1547-1562
作者:  骆永明;  施华宏;  涂晨;  周倩;  季荣;  潘响亮;  徐向荣;  吴辰熙;  安立会;  孙晓霞;  何德富;  李艳芳;  马旖旎;  李连祯
浏览  |  Adobe PDF(1556Kb)  |  收藏  |  浏览/下载：2771/989  |  提交时间：2021/12/01
微塑料  环境介质  环境行为  生态风险  
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
浏览  |  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  
不同性质农田土壤中铜的可提取性与生物有效性及毒性 期刊论文
土壤, 2020, 卷号: 52, 期号: 5, 页码: 911-919
作者:  朱侠;  李连祯;  涂晨;  骆永明
浏览  |  Adobe PDF(1412Kb)  |  收藏  |  浏览/下载：373/154  |  提交时间：2021/12/01
土壤  铜  可提取性  生物有效性  生物毒性  阈值  
铅锌矿区及农田土壤中重金属的化学形态与生物有效性研究 学位论文
工学硕士, 北京: 中国科学院大学, 2019
作者:  朱侠
Adobe PDF(2747Kb)  |  收藏  |  浏览/下载：14/0  |  提交时间：2024/03/20
重金属，铅锌矿区，复合污染土壤，化学形态，生物有效性  
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.  
海藻发酵液在樱桃番茄上的施用效果及分析 期刊论文
分子植物育种, 2018, 卷号: 16, 期号: 13, 页码: 4387-4394
作者:  崔维香;  林梅;  秦松;  庞云龙;  王学江;  王明鹏;  刘正一;  孙亚东
Adobe PDF(245Kb)  |  收藏  |  浏览/下载：333/86  |  提交时间：2020/07/08
海藻发酵液  樱桃番茄  产量  品质  
生物炭对土壤理化性质影响的研究进展 期刊论文
地球科学进展, 2014, 卷号: 29, 期号: 1, 页码: 68-79
武玉; 徐刚; 吕迎春; 邵宏波
Adobe PDF(1500Kb)  |  收藏  |  浏览/下载：2538/643  |  提交时间：2014/07/07
生物炭  土壤改良  有机质  物理性质  化学性质