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Chemical Differences Between PM1 and PM2.5 in Highly Polluted Environment and Implications in Air Pollution Studies 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (5)
作者:  Sun, Yele;  He, Yao;  Kuang, Ye;  Xu, Wanyun;  Song, Shaojie;  Ma, Nan;  Tao, Jiangchuan;  Cheng, Peng;  Wu, Cheng;  Su, Hang;  Cheng, Yafang;  Xie, Conghui;  Chen, Chun;  Lei, Lu;  Qiu, Yanmei;  Fu, Pingqing;  Croteau, Philip;  Worsnop, Douglas R.
收藏  |  浏览/下载:19/0  |  提交时间:2020/07/02
An intestinal zinc sensor regulates food intake and developmental growth 期刊论文
NATURE, 2020, 580 (7802) : 263-+
作者:  Wu, Thomas D.;  39;Gorman, William E.
收藏  |  浏览/下载:14/0  |  提交时间:2020/07/03

Hodor, an intestinal zinc-gated chloride channel, controls systemic growth in Drosophila by promoting food intake and by modulating Tor signalling and lysosomal homeostasis within enterocytes.


In cells, organs and whole organisms, nutrient sensing is key to maintaining homeostasis and adapting to a fluctuating environment(1). In many animals, nutrient sensors are found within the enteroendocrine cells of the digestive system  however, less is known about nutrient sensing in their cellular siblings, the absorptive enterocytes(1). Here we use a genetic screen in Drosophila melanogaster to identify Hodor, an ionotropic receptor in enterocytes that sustains larval development, particularly in nutrient-scarce conditions. Experiments in Xenopus oocytes and flies indicate that Hodor is a pH-sensitive, zinc-gated chloride channel that mediates a previously unrecognized dietary preference for zinc. Hodor controls systemic growth from a subset of enterocytes-interstitial cells-by promoting food intake and insulin/IGF signalling. Although Hodor sustains gut luminal acidity and restrains microbial loads, its effect on systemic growth results from the modulation of Tor signalling and lysosomal homeostasis within interstitial cells. Hodor-like genes are insect-specific, and may represent targets for the control of disease vectors. Indeed, CRISPR-Cas9 genome editing revealed that the single hodor orthologue in Anopheles gambiae is an essential gene. Our findings highlight the need to consider the instructive contributions of metals-and, more generally, micronutrients-to energy homeostasis.


  
A Factor and Trends Analysis of Multidecadal Lower Tropospheric Observations of Arctic Aerosol Composition, Black Carbon, Ozone, and Mercury at Alert, Canada 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (24) : 14133-14161
作者:  Sharma, S.;  Barrie, L. A.;  Magnusson, E.;  Brattstrom, G.;  Leaitch, W. R.;  Steffen, A.;  Landsberger, S.
收藏  |  浏览/下载:8/0  |  提交时间:2020/02/17
Arctic haze  Arctic aerosol components  sources and trends in Arctic pollution  black carbon  polar sunrise chemistry  detection of climate change  
Initial Cost Barrier of Ammonia Control in Central China 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (23) : 14175-14184
作者:  Zheng, Mingming;  Wang, Yuhang;  Bao, Jianguo;  Yuan, Lianxin;  Zheng, Huang;  Yan, Yingying;  Liu, Dantong;  Kong, Shaofei;  Xie, Mingjie
收藏  |  浏览/下载:6/0  |  提交时间:2020/02/17
Nutrient and carbon cycling along nitrogen deposition gradients in broadleaf and conifer forest stands in the east of England 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 447: 180-194
作者:  Vanguelova, Elena, I;  Pitman, Rona M.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Nitrogen deposition  Edge effect  Broadleaves  Conifers  Intensive fanning  Scavenging effects  UK  
Aerosol pH Dynamics During Haze Periods in an Urban Environment in China: Use of Detailed, Hourly, Speciated Observations to Study the Role of Ammonia Availability and Secondary Aerosol Formation and Urban Environment 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (16) : 9730-9742
作者:  Shi, Guoliang;  Xu, Jiao;  Shi, Xurong;  Liu, Baoshuang;  Bi, Xiaohui;  Xiao, Zhimei;  Chen, Kui;  Wen, Jie;  Dong, Shihao;  Tian, Yingze;  Feng, Yinchang;  Yu, Haofei;  Song, Shaojie;  Zhao, Qianyu;  Gao, Jie;  Russell, Armistead G.
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
aerosol  pH  ammonia  source  secondary aerosol  
The Impact of Changes in Cloud Water pH on Aerosol Radiative Forcing 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (7) : 4039-4048
作者:  Turnock, S. T.;  39;Connor, F. M.
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/26
aerosols  climate  sulfate  clouds  radiative forcing  
Global Occurrence and Chemical Impact of Stratospheric Blue Jets Modeled With WACCM4 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (5) : 2841-2864
作者:  Perez-Invernon, F. J.;  Gordillo-Vazquez, F. J.;  Smith, A. K.;  Arnone, E.;  Winkler, H.
收藏  |  浏览/下载:11/0  |  提交时间:2019/11/26
transient luminous events  Blue Jets  lightning  stratosphere  atmospheric electricity  atmospheric chemistry  
Oxidation of Volatile Organic Compounds as the Major Source of Formic Acid in a Mixed Forest Canopy 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (5) : 2940-2948
作者:  Alwe, Hariprasad D.;  Millet, Dylan B.;  Chen, Xin;  Raff, Jonathan D.;  Payne, Zachary C.;  Fledderman, Kathryn
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/26
Formic acid  Eddy co-variance fluxes  
The Acidity Distribution of Drops in a Deep Convective Cloud 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (1) : 424-440
作者:  Hu, J. Y.;  Yin, Y.;  Chen, Q.
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
drop acidity distribution  convective cloud  microphysics processes  aerosols  aqueous oxidation