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浏览/检索结果: 共16条，第1-10条 帮助

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Electrochemical Profile Recording for Pueraria Variety Identification 期刊论文  OAI收割
ANALYTICAL SCIENCES, 2020, 卷号: 36, 期号: 10, 页码: 1237-1241
作者:  Wang, Yangyang;  Pan, Bo;  Zhang, Mingjun;  Du, Xinpeng;  Wu, Weihong
  |  收藏  |  浏览/下载：27/0  |  提交时间：2020/12/09
A validated analytical procedure for boron isotope analysis in plants by MC-ICP-MS 期刊论文  OAI收割
TALANTA, 2019, 卷号: 196, 页码: 389-394
作者:  Rosner, M (Rosner, Martin)[ 4 ];  Deng, L (Deng, Li)[ 1,2 ];  Jin, ZD (Jin, Zhangdong)[ 1,2 ];  Xiao, J (Xiao, Jun)[ 1,2 ];  Vogl, J (Vogl, Jochen)[ 3 ]
  |  收藏  |  浏览/下载：92/0  |  提交时间：2019/02/27
铱针电极原位测定绿萝植物组织pH值 期刊论文  OAI收割
分析科学学报, 2019, 卷号: 35, 期号: 5, 页码: 538-542
作者:  周正文;  潘大为;  魏红;  潘飞
  |  收藏  |  浏览/下载：9/0  |  提交时间：2020/07/08
食用蔬菜能吸收和积累微塑料 期刊论文  OAI收割
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：143/0  |  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.  
Stem CO2 efflux of Abies fabri in subalpine forests in the Gongga Mountains, Eastern Tibetan Plateau 期刊论文  OAI收割
JOURNAL OF PLANT ECOLOGY, 2017, 卷号: 10, 期号: 6, 页码: 1001
作者:  Zhao Guang;  Liu Gangcai;  Zhu Wanze;  Zhao Jixia;  Wang Xuemei
  |  收藏  |  浏览/下载：26/0  |  提交时间：2019/09/25
Stem CO2 efflux of Abies fabri in subalpine forests in the Gongga Mountains, Eastern Tibetan Plateau 期刊论文  OAI收割
JOURNAL OF PLANT ECOLOGY, 2017, 卷号: 10, 期号: 6, 页码: 1001
作者:  Zhao Guang;  Liu Gangcai;  Zhu Wanze;  Zhao Jixia;  Wang Xuemei
  |  收藏  |  浏览/下载：14/0  |  提交时间：2019/09/25
Separation of Chlorine and Its Isotopic Composition in Plants 期刊论文  OAI收割
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2014, 卷号: 42, 期号: 8, 页码: 1094-1098
作者:  Xu Qing-Cai;  Liu Li-Hua;  Zhang Yan-Ling
  |  收藏  |  浏览/下载：29/0  |  提交时间：2018/06/20
Sensitive quantification of isoprenoid cytokinins in plants by selective immunoaffinity purification and high performance liquid chromatography-quadrupole-time of flight mass spectrometry 期刊论文  OAI收割
METHODS, 2012, 卷号: 56, 期号: 2, 页码: 174-179
作者:  Liang, Yuan;  Zhu, Xiaocui;  Zhao, Meiping;  Liu, Huwei
  |  收藏  |  浏览/下载：24/0  |  提交时间：2019/04/09
Hyper-production of C-13-labeled trans-resveratrol in Vitis vinifera suspension cell culture by elicitation and in situ adsorption 期刊论文  OAI收割
biochemical engineering journal, 2011, 卷号: 53, 期号: 3, 页码: 292-296
作者:  Yue, Xiangguo;  Zhang, Wei;  Deng, Maicun
收藏  |  浏览/下载：19/0  |  提交时间：2015/11/12
Flowering phenology and height growth pattern are associated with maximum plant height, relative growth rate and stem tissue mass density in herbaceous grassland species 期刊论文  OAI收割
JOURNAL OF ECOLOGY, 2011, 卷号: 99, 期号: 4, 页码: 991-1000
Sun, Shucun; Frelich, Lee E.
收藏  |  浏览/下载：16/0  |  提交时间：2012/11/09