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| 1 | 珠江河口沉积物Hg的分布与污染评价显示文摘利用H异元素直测仪分析了珠江河口表层沉积物和柱状沉积物Hg的含量和背景值。沉积物Hg的背景值为(45.94~70.62)×10^-9。表层沉积物Hg含量在(20.81~369.20)×10^-9,平均为168.23×10^-9,平面分布呈西部向东部和东南方向减少的趋势,其中,以西部浅滩沉积物Hg含量最高,富集程度最大。柱状沉积物Hg含量在(33.61~250.43)×10^-9,平均含量150.49×10^-9,垂直分布存在显著的地域差异,东滩沉积物Hg表现为上部富集,而西滩沉积物表现为均匀分布。地质累积指数法、潜在生态危害指数法和单因子污染指数法三种污染评价的结果表明,珠江河口表层沉积物的Hg污染区主要集中于西部浅滩,存在中等程度的Hg污染。 | 施祺 RUECKERT Peter LEIPE Thomas 周蒂 HARF FJan | 2007 | 海洋环境科学2007，26，6： | 6 |
| 2 | Expression Analysis of Genes Related to Auxin Metabolism at Different Growth Stages of Pak Choi显示文摘Pak choi is a low-temperature vernalized plant that readily undergoes premature bolting during spring, but little is known about the governing molecular regulation of vernalization. In order to enhance our understanding of mechanism about premature bolting, we discussed the relationship between auxin(indole-3-acetic acid, IAA) and flowering of pak choi. During vernalization, hormone metabolism is an important regulatory pathway, and IAA plays a specific role. IAA metabolism has been studied in Arabidopsis thaliana and other plants, but not in pak choi. In this paper, the IAA content in pak choi shoot apices during vernalization and different growth stages was compared. The IAA content decreased significantly after low-temperature treatment(4 °C) and then increased rapidly during vegetative growth. During floral bud initiation,the IAA content decreased rapidly and was the lowest. Expressions of genes encoding key IAA metabolic enzymes were analyzed, and a major synthetase-encoding gene was downregulated, while a key degrading enzyme-encoding gene was upregulated during each comparison period,resulting in decreased IAA content. Expressions of four genes(Bra034975, Bra030246, Bra012239 and Bra040296) were consistent with changes in the IAA content. The functions of differentially expressed genes(DEGs) were analyzed, and 15 DEGs were found to be related to IAA metabolism.The findings illuminated the molecular mechanism regulating IAA content during vernalization in pak choi. | Yuxiang Hou Xueting Wang Zhujun Zhu Mengxia Sun Meilan Li Leiping Hou | 2020 | Horticultural Plant Journal2020，6，1： | 4 |
| 3 | Impact of high-normal blood pressure on the risk of cardiovascular disease 显示文摘 | Vasan RS Larson MG Leip EP | 2001 | N Engl J Med2001，345，18： | 1 |
| 4 | Impact of High noral blood pressure on the risk of cardiovascular discase 显示文摘 | Vasari RS Larson MG Leip Ep | 2001 | N Engl J Med2001，345，18： | 1 |
| 5 | Life time risk for development of atrial fibrillation:The Framingham Heart Study显示文摘 | Lloyd-JonesDM Wang TJ Leip EP | | 0，，： | 1 |
| 6 | Impact of high-normal blood pressure on the risk of cardiovascular disease显示文摘 | Vasan RS Larson MG Leip EP | 2001 | N Engl J Med2001，345，18： | 1 |
| 7 | Predictors of new-onset kidney disease in a community-based population 显示文摘 | Fox CS Larson MG Leip EP | 2004 | JAMA2004，291，7： | 1 |
| 8 | Distribution and enrichment of redox-sensitlve metals in Baltic Sea sediments 显示文摘 | GINGELE F X LEIPE T | 1998 | Oceanographic Literature Review1998，45，： | 1 |
| 9 | Optimization of the movements of a component placement machine显示文摘 | LEIP(A)L(A)T NEVALAINEN O | 1989 | European Journal of Operation Research1989，38，2： | 1 |
| 10 | Glycemic status and development of kidney disease; The Framingham Heart study 显示文摘 | Fox CS Larson MG Leip EP | 2005 | Diabetes Care2005，28，10： | 1 |
| 11 | Lifetime risk for development of atrial fibrillation:The Framingham Heart Study显示文摘 | Lloyd-Jones DM Wang T J Leip EP | 2004 | Circulation2004，110，9： | 1 |
| 12 | Compliance and resistance levels and unloading in proportional assist ventilation显示文摘 | Leip~il~i JA Iwasaki S Lee S | 2005 | Physiol Meas2005，26，3： | 1 |
| 13 | Assessment of frequency of progression to hypertension in non-hypertensive participants in the Framingham Heart Study: a cohort study 显示文摘 | Vasan RS Larson MG Leip EP | 2001 | Lancet2001，358，9294： | 1 |
| 14 | GATA-3 in human T cell type 2 development 显示文摘 | Skapenko A Leipe J Niesner U | 2004 | J Exp Med2004，199，3： | 1 |
| 15 | Lifetime Risk for Devetopment of Atrial Fibrillation: The Framingham Heart Study显示文摘 | Lloyd-Jones D M Wang T J Leip E P | 2004 | Circulation2004，25，110： | 1 |
| 16 | Impact of high - normal blood pressure on the risk of cardiovascular disease 显示文摘 | Vasari R S Larson M G Leip E P | 2001 | N Engl J Med2001，345，18： | 1 |
| 17 | Lifetime risk for developing congestive heart failure:the framingham heart Study显示文摘 | Lloyd-Jones DM Larson MG Leip EP | 2002 | Circulation2002，106，24： | 1 |
| 18 | Lifetine risk for developing congestive heart failure:the framingham heart Study显示文摘 | Lloyd-Jones DM Larson MG Leip EP | 2002 | Circulation2002，106，24： | 1 |
| 19 | Glycan foraging in vivo by an intestine-adapted bacterial symbiont显示文摘 | Sonnenburg JL Xu J Leip DD | 2005 | Science2005，307，5717： | 1 |
| 20 | Main destination ratios:Analyses of tourist flows显示文摘 | LEIPE N | 1989 | Annals ofTourism Resesrch1989，16，4： | 1 |
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