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	Influencing mechanisms of weld root tip on microstructure and mechanical properties of electron beam welded joints of titanium alloy thick plates 期刊论文 OAI收割 SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2023, 卷号: 28, 期号: 9, 页码: 1011-1020 作者: Li, F. S.; Wu, L. H.; Zhao, H. B.; Li, H. J.; Xue, P. \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2024/01/08 Titanium alloys Electron beam welding Weld root tip Mechanical properties
	Processes controlling programmed cell death of root velamen radicum in an epiphytic orchid 期刊论文 OAI收割 ANNALS OF BOTANY, 2020, 卷号: 126, 期号: 2, 页码: 261-275 作者: Li, Jia-Wei; Zhang, Shi-Bao; Xi, Hui-Peng; Bradshaw, Corey J. A.; Zhang, Jiao-Lin \| 收藏 \| 浏览/下载：39/0 \| 提交时间：2020/09/15 Epiphytic orchids programmed cell death (PCD) root tip velamen radicum X-ray computerized tomography transmission electron microscopy
	Global meta-analysis reveals different patterns of root tip adjustments by angiosperm and gymnosperm trees in response to environmental gradients 期刊论文 OAI收割 JOURNAL OF BIOGEOGRAPHY, 2019, 卷号: 46, 期号: 1, 页码: 123-133 作者: Wang, Cunguo; McCormack, M. Luke; Guo, Dali; Li, Jiandong \| 收藏 \| 浏览/下载：71/0 \| 提交时间：2019/05/23 carbon climate change fine roots fine-root biomass root tip abundance root tip density
	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.
	Global meta-analysis reveals different patterns of root tip adjustments by angiosperm and gymnosperm trees in response to environmental gradients 期刊论文 OAI收割 JOURNAL OF BIOGEOGRAPHY, 2019, 卷号: 46, 期号: 1, 页码: 123-133 作者: Wang, Cunguo; McCormack, M. Luke \| 收藏 \| 浏览/下载：14/0 \| 提交时间：2019/05/23 carbon climate change fine roots fine-root biomass root tip abundance root tip density
	Growth, morphological traits and mycorrhizal colonization of fine roots respond differently to nitrogen addition in a slash pine plantation in subtropical China SCI/SSCI论文 OAI收割 2015 作者: Kou L.; Guo, D. L.; Yang, H.; Gao, W. L.; Li, S. G. 收藏 \| 浏览/下载：45/0 \| 提交时间：2015/12/09 Ectomycorrhizal tip colonization Fine root growth Morphological traits Nitrogen deposition Root branching order Stoichiometric ratio foraging strategies forest ecosystems norway spruce life-span plants phosphorus architecture soil arabidopsis competition
	Response of rice (oryza sativa) with root surface iron plaque under aluminium stress 期刊论文 iSwitch采集 Annals of botany, 2006, 卷号: 98, 期号: 2, 页码: 389-395 作者: Chen, Rong Fu; Shen, Ren Fang; Gu, Pei; Dong, Xiao Ying; Du, Chang Wen 收藏 \| 浏览/下载：18/0 \| 提交时间：2019/05/10 Rice (oryza sativa) Formation of iron plaque Root surface Fe(ii)-edta Aluminium (a1) stress Citrate secretion Dcb (dithionite-citrate-bicarbonate) Root tip A1 translocation