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Overexpression of MPV17/PMP22-like protein 2 gene decreases production of radical oxygen species in Pyropia yezoensis (Bangiales, Rhodophyta) 期刊论文 OAI收割
JOURNAL OF PHYCOLOGY, 2024, 页码: 14
作者: Li, Yujie; Yang, Jiali; Sun, Zhenjie; Niu, Jianfeng; Wang, Guangce

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收藏 | 浏览/下载：16/0 | 提交时间：2024/09/02

antioxidant capacity genetic breeding peroxisomal porin-like channel photorespiratory photosynthetic electron chain Pyropia yezoensis

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

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收藏 | 浏览/下载：150/0 | 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.

Graphitic Nanocarbon-Selenium Cathode with Favorable Rate Capability for Li-Se Batteries 期刊论文 OAI收割
ACS APPLIED MATERIALS & INTERFACES, 2017, 卷号: 9, 期号: 10, 页码: 8759-8765
作者: Zhang, Shuai-Feng; Wang, Wen-Peng; Xin, Sen; Ye, Huan; Yin, Ya-Xia

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收藏 | 浏览/下载：26/0 | 提交时间：2018/01/12

Li-se Batteries Graphitic Carbon Se Cathode Chain-like Se Molecules High-rate Capability

Water-induced transitions from ellipsoidal micelles to chain-like nanostructures self-assembled by the coil-rod-coil block copolymer based on hydrogen-bonding urea groups 期刊论文 iSwitch采集
Macromolecular chemistry and physics, 2016, 卷号: 217, 期号: 16, 页码: 1851-1859
作者: Qi, Rui; Jin, Yong; Cheng, Xinfeng; Li, Hanping; Lai, Shuangquan

收藏 | 浏览/下载：45/0 | 提交时间：2019/05/09

Chain-like nanostructures Ellipsoidal micelles Hydrogen-bonding urea groups Self-assembly Solvent-induced

Novel fatty chain-modified glucagon-like peptide-1 conjugates with enhanced stability and prolonged in vivo activity 期刊论文 OAI收割
BIOCHEMICAL PHARMACOLOGY, 2013, 卷号: 86, 期号: 2, 页码: 297-308
作者: Han, Jing; Huang, Xun; Sun, Lidan; Li, Zheng; Qian, Hai

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收藏 | 浏览/下载：29/0 | 提交时间：2019/01/08

Glucagon-like peptide-1 Cysteine modified Fatty chain Protracted antidiabetic effects

Synthesis of Well-defined Long Chain Branched Polyethylene via Anionic Polymerization Combined with Graft-onto Method 期刊论文 OAI收割
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 2013, 卷号: 29, 期号: 3, 页码: 589-595
作者: Liu Feng; Wang Lu; Zhang Guang-chun; Zheng Jun; Tang Tao

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收藏 | 浏览/下载：23/0 | 提交时间：2019/04/09

Long Chain Branching Polyethylene Anionic Polymerization Comb-like Polymer

Colorimetric Detection of PCR Product with DNAzymes Induced by 5 '-Nuclease Activity of DNA Polymerases 期刊论文 OAI收割
CHEMBIOCHEM, 2011, 卷号: 12, 期号: 1, 页码: 43-46
Du, Feng; Tang, Zhuo

收藏 | 浏览/下载：19/0 | 提交时间：2012/11/09

Aeromonas hydrophila analytical methods peroxidase-like DNAzyme polymerase chain reaction TaqMan

A facile route towards the preparation of ultra-long-chain amidosulfobetaine surfactants 期刊论文 iSwitch采集
Synlett, 2009, 期号: 16, 页码: 2655-2658
作者: Chu, Zonglin; Feng, Yujun

收藏 | 浏览/下载：40/0 | 提交时间：2019/05/10

Ultra-long-chain surfactants Amidosulfobetaine surfactants Worm-like micelles Self-assembly aggregates Facile synthesis

Hydrothermal Synthesis and Crystal Structure of a Keggin Polyoxometalate Co-II(2,2 '-bipy)(2)(H2O) (2) (SiW12O40)-O-VI center dot 2H(2)O 期刊论文 OAI收割
Chinese Journal of Structural Chemistry, 2009, 卷号: 28, 期号: 3, 页码: 329-334
M. P. Zhu, J. X. Chen, T. Y. Lan, A. K. Li, L. Zhang and X. R. Lin

收藏 | 浏览/下载：22/0 | 提交时间：2012/11/06

polyoxometalate hydrothermal synthesis crystal structure organic-inorganic hybrid supramolecular chemistry transition-metal-complexes magnetic-properties chain-like sheets

CLUSTER MOVING MONTE CARLO SIMULATION OF NANO-SIZED MAGNETIC PARTICLE AGGREGATION IN AN APPLIED MAGNETIC FIELD 期刊论文 OAI收割
International Journal of Modern Physics B, 2009, 卷号: 23, 期号: 27, 页码: 5307-5323
X. L. Li; K. L. Yao; Z. L. Liu

收藏 | 浏览/下载：16/0 | 提交时间：2012/04/13

Magnetic aggregation cluster moving Monte Carlo simulation chain-like clusters ferromagnetic particles fine particles separation flocculation performance limitations