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| 1 | Fast increasing of surface ozone concentrations in Pearl River Delta characterized by a regional air quality monitoring network during 2006–2011显示文摘Based on the observation by a Regional Air Quality Monitoring Network including 16 monitoring stations, temporal and spatial variations of ozone(O3), NO2and total oxidant(Ox) were analyzed by both linear regression and cluster analysis. A fast increase of regional O3concentrations of 0.86 ppbV/yr was found for the annual averaged values from 2006 to 2011 in Guangdong, China. Such fast O3increase is accompanied by a correspondingly fast NOx reduction as indicated by a fast NO2 reduction rate of 0.61 ppbV/yr. Based on a cluster analysis, the monitoring stations were classified into two major categories – rural stations(non-urban) and suburban/urban stations. The O3concentrations at rural stations were relatively conserved while those at suburban/urban stations showed a fast increase rate of 2.0 ppbV/yr accompanied by a NO2 reduction rate of 1.2 ppbV/yr. Moreover, a rapid increase of the averaged O3 concentrations in springtime(13%/yr referred to 2006 level) was observed, which may result from the increase of solar duration, reduction of precipitation in Guangdong and transport from Eastern Central China. Application of smog production algorithm showed that the photochemical O3production is mainly volatile organic compounds(VOC)-controlled. However, the photochemical O3production is sensitive to both NOx and VOC for O3pollution episode. Accordingly, it is expected that a combined NOx and VOC reduction will be helpful for the reduction of the O3 pollution episodes in Pearl River Delta while stringent VOC emission control is in general required for the regional O3 pollution control. | Jinfeng Li Keding Lu Wei Lv Jun Li Liuju Zhong Yubo Ou Duohong Chen Xin Huang Yuanhang Zhang | 2014 | Journal of Environmental Sciences2014，26，1： | 51 |
| 2 | Long-term trends of fine particulate matter and chemical composition in the Pearl River Delta Economic Zone (PRDEZ), China显示文摘在下午 2.5 层次理解趋势为提出是必要的干净空气计划。这份报纸在珀尔河三角洲经济地区(PRDEZ ) 为 2000 年从各种各样的出版来源分析下午 2.5 数据到 2010。在下午 2.5 团集中的长期的变化被分析。结果给那位首相看 2.5, 器官的碳(OC ) ,元素的碳(EC ) ,并且那么 42 显示出一个类似的趋势,在 2005 前增加然后稍微减少。年度普通下午 2.5 集中从 49.1 g ? | Xuemei WANG Weihua CHEN Duohong CHEN Zhiyong WU Qi Fan | 2016 | Frontiers of Environmental Science & Engineering2016，10，1： | 11 |
| 3 | Elevated serum polybrominated diphenyl ethers and thyroid-stimulating hormone associated with lymphocytic micronuclei in Chinese workers from an e-waste dismantling site 显示文摘 | YUAN Jing CHEN Lan CHEN Duohong | 2008 | Environ Sci Technol2008，42，： | 1 |
| 4 | Chemicalcharacteristics of haze during summer and winter in Guangzhou显示文摘 | TAN Jihua DUAN Jingchun CHEN Duohong | 2009 | Atmos Res2009，94，2： | 1 |
| 5 | Variation trends and influencing factors of total gaseous mercury in the Pearl River Delta—A highly industrialised region in South China influenced by seasonal monsoons显示文摘 | Laiguo Chen Ming Liu Zhencheng Xu Ruifang Fan Jun Tao Duohong Chen Deqiang Zhang Donghai Xie Jiaren Sun | 2013 | Atmospheric Environment2013，，： | 1 |
| 6 | Pollutioncharacterization and diurnal variation of PBDEs in the atmosphereof an E-waste dismantling region显示文摘 | CHEN Duohong BI Xinhui ZHAO Jinping | 2009 | Environ Pollut2009，157，3： | 1 |
| 7 | Chemical characteristics of haze during summer and winter in Guangzhou显示文摘 | Tan Jihua Duan Jingchun Chen Duohong | 2009 | Atmospheric Research2009，94，2： | 1 |
| 8 | Chemical characteristics of haze during summer and winter in Guangzhou 显示文摘 | Tan Jihua Duan Jingchun Chen Duohong | 2009 | Atmospheric Research2009，94，2： | 1 |
| 9 | Chemical characteristics of haze during summer and winter in Guangzhou 显示文摘 | TAN Jihua DUAN Jingehun CHEN Duohong | 2009 | Atmospheric Research2009，94，2： | 1 |
| 10 | Phase partitioning, concentration variation and risk assessment of polybrominated diphenyl ethers (PBDEs) in the atmosphere of an E-waste re- cycling site显示文摘 | Chen Duohong Bi Xinhui Liu Ming | 2011 | Chemosphere2011，82，9： | 1 |
| 11 | Pollution characterization and diurnal variation of PBDEs in the atmo- sphere of an E-waste dismantling region 显示文摘 | Chen Duohong Bi Xinhui Zhao Jinping | 2009 | Environmental Pollution2009，157，3： | 1 |
| 12 | Space view of the decadal variation for typical air pollutants in the Pearl River Delta (PRD) region in China显示文摘 | Zifeng WANG Min SHAO Liangfu CHEN Minghui TAO Liuju ZHONG Duohong CHEN Meng FAN Yang WANG Xinhui WANG | 2016 | Frontiers of Environmental Science & Engineering2016，10，5： | 0 |
| 13 | The role of DNA methylation in the maintenance of phenotypic variation induced by grafting chimerism in Brassica显示文摘Grafting facilitates the interaction between heterologous cells with different genomes,resulting in abundant phenotypic variation,which provides opportunities for crop improvement.However,how grafting-induced variation occurs and is transmitted to progeny remains elusive.A graft chimera,especially a periclinal chimera,which has genetically distinct cell layers throughout the plant,is an excellent model to probe the molecular mechanisms of grafting-induced variation maintenance.Here we regenerated a plant from the T-cell layer of a periclinal chimera,TCC(where the apical meristem was artificially divided into three cell layers–from outside to inside,L1,L2,and L3;T=Tuber mustard,C=red Cabbage),named rTTT0(r=regenerated).Compared with the control(rsTTT,s=self-grafted),rTTT0 had multiple phenotypic variations,especially leaf shape variation,which could be maintained in sexual progeny.Transcriptomes were analyzed and 58 phenotypic variation-associated genes were identified.Whole-genome bisulfite sequencing analyses revealed that the methylome of rTTT0 was changed,and the CG methylation level was significantly increased by 8.74%.In rTTT0,the coding gene bodies are hypermethylated in the CG context,while their promoter regions are hypomethylated in the non-CG context.DNA methylation changes in the leaf shape variation-associated coding genes,ARF10,IAA20,ROF1,and TPR2,were maintained for five generations of rTTT0.Interestingly,grafting chimerism also affected transcription of the microRNA gene(MIR),among which the DNA methylation levels of the promoters of three MIRs associated with leaf shape variation were changed in rTTT0,and the DNA methylation modification of MIR319 was maintained to the fifth generation of selfed progeny of rTTT0(rTTT5).These findings demonstrate that DNA methylation of coding and non-coding genes plays an important role in heterologous cell interaction-induced variation formation and its transgenerational inheritance. | Ke Liu Tingjin Wang Duohong Xiao Bin Liu Yang Yang Kexin Xu Zhenyu Qi Yan Wang Junxing Li Xun Xiang Lu Yuan Liping Chen | 2023 | Horticulture Research2023，10，3： | 0 |
| 14 | Bioinspired polysaccharide-based nanocomposite membranes with robust wet mechanical properties for guided bone regeneration显示文摘Polysaccharide-based membranes with excellent mechanical properties are highly desired.However,severe mechanical deterioration under wet conditions limits their biomedical applications.Here,inspired by the structural heterogeneity of strong yet hydrated biological materials,we propose a strategy based on heterogeneous crosslink-and-hydration(HCH)of a molecule/nano dual-scale network to fabricate polysaccharide-based nanocomposites with robust wet mechanical properties.The heterogeneity lies in that the crosslink-and-hydration occurs in the molecule-network while the stress-bearing nanofiber-network remains unaffected.As one demonstration,a membrane assembled by bacterial cellulose nanofiber-network and Ca2+-crosslinked and hydrated sodium alginate molecule-network is designed.Studies show that the crosslinked-and-hydrated molecule-network restricts water invasion and boosts stress transfer of the nanofiber-network by serving as interfibrous bridge.Overall,the molecule-network makes the membrane hydrated and flexible;the nanofiber-network as stress-bearing component provides strength and toughness.The HCH dual-scale network featuring a cooperative effect stimulates the design of advanced biomaterials applied under wet conditions such as guided bone regeneration membranes. | Jian-Hong Xiao Zhen-Bang Zhang JiaHao Li Si-Ming Chen Huai-Ling Gao YinXiu Liao Lu Chen ZiShuo Wang YiFan Lu YuanZhen Hou HengAn Wu DuoHong Zou Shu-Hong Yu | 2024 | National Science Review2024，11，3： | 0 |
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