×
验证码:
换一张
忘记密码?
记住我
CORC
首页
科研机构
检索
知识图谱
申请加入
托管服务
登录
注册
在结果中检索
科研机构
中国科学院大学 [2]
植物研究所 [2]
厦门大学 [1]
新疆生态与地理研究所 [1]
昆明植物研究所 [1]
烟台海岸带研究所 [1]
更多...
内容类型
期刊论文 [5]
学位论文 [3]
发表日期
2019 [1]
2017 [2]
2015 [2]
2009 [1]
2005 [1]
2003 [1]
更多...
学科主题
Plant Scie... [2]
生态学 [1]
×
知识图谱
CORC
开始提交
已提交作品
待认领作品
已认领作品
未提交全文
收藏管理
QQ客服
官方微博
反馈留言
浏览/检索结果:
共8条,第1-8条
帮助
已选(
0
)
清除
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
作者升序
作者降序
题名升序
题名降序
发表日期升序
发表日期降序
提交时间升序
提交时间降序
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:63/0
  |  
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.
拟南芥ANAC084在逆境胁迫中的功能研究
学位论文
2017, 2016
钟小年
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/06/20
ANAC084
细胞周期
根尖干细胞
ANAC084
cell cycle
root tip stem cell
Identification and Functional Divergence Analysis of WOX Gene Family in Paper Mulberry
期刊论文
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2017, 卷号: 18, 期号: 8
作者:
Tang, Feng
;
Chen, Naizhi
;
Zhao, Meiling
;
Wang, Yucheng
;
He, Ruiping
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2022/03/28
WOX transcription factor
paper mulberry
development
phytohormone
stress response
铁皇冠(Microsorium pteropus)对水体砷污染的生理响应及修复
学位论文
博士, 北京: 中国科学院大学, 2015
作者:
陈福龙
收藏
  |  
浏览/下载:85/0
  |  
提交时间:2016/12/21
铁皇冠
砷污染
生理响应
植物修复
The Arabidopsis thaliana elongator complex subunit 2 epigenetically affects root development
期刊论文
JOURNAL OF EXPERIMENTAL BOTANY, 2015, 卷号: 66, 期号: 15, 页码: 4631-4642
作者:
Jia, Yuebin
;
Tian, Huiyu
;
Li, Hongjiang
;
Yu, Qianqian
;
Wang, Lei
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2022/09/13
Auxin ELP2
epigenetics
root
The cation-efflux transporter bjcet2 mediates zinc and cadmium accumulation in brassica juncea l. leaves
期刊论文
Plant cell reports, 2009, 卷号: 28, 期号: 8, 页码: 1235-1242
作者:
Xu, Jin
;
Chai, Tuanyao
;
Zhang, Yuxiu
;
Lang, Minglin
;
Han, Lu
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2019/05/10
Heavy metal
Cation-efflux transporter
Brassica juncea l.
Transgenic plant
Control of root cap formation by microrna-targeted auxin response factors in arabidopsis
期刊论文
Plant cell, 2005, 卷号: 17, 期号: 8, 页码: 2204-2216
作者:
Wang, JW
;
Wang, LJ
;
Mao, YB
;
Cai, WJ
;
Xue, HW
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2019/05/10
极度濒危植物五针白皮松保护生物学研究兼论松属白皮松组分子系统学和生物地理学问题
学位论文
博士, 中国科学院昆明植物研究所: 中国科学院昆明植物研究所, 2003
张志勇
收藏
  |  
浏览/下载:120/0
  |  
提交时间:2011/10/25
五针白皮松
松属
白皮松组
濒危原因
保护生物学
分子系统学
生物地理学
分子钟
©版权所有 ©2017 CSpace - Powered by
CSpace