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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.


  
Acidification diminishes diatom silica production in the Southern Ocean 期刊论文
NATURE CLIMATE CHANGE, 2019, 9 (10) : 781-+
作者:  Petrou, Katherina;  Baker, Kirralee G.;  Nielsen, Daniel A.;  Hancock, Alyce M.;  Schulz, Kai G.;  Davidson, Andrew T.
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/27
Polymorph selection towards photocatalytic gaseous CO2 hydrogenation 期刊论文
NATURE COMMUNICATIONS, 2019, 10
作者:  Yan, Tingjiang;  Wang, Lu;  Liang, Yan;  Makaremi, Meysam;  Wood, Thomas E.;  Dai, Ying;  Huang, Baibiao;  Jelle, Abdinoor A.;  Dong, Yuchan;  Ozin, Geoffrey A.
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/27
Coralline algal skeletal mineralogy affects grazer impacts 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (10) : 4775-4783
作者:  McCoy, Sophie J.;  Kamenos, Nicholas A.
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
coralline algae  herbivory  mineralogy  ocean acidification  Raman spectroscopy  
Chemical feedbacks weaken the wintertime response of particulate sulfate and nitrate to emissions reductions over the eastern United States 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (32) : 8110-8115
作者:  Shah, Viral;  Jaegle, Lyatt;  Thornton, Joel A.;  Lopez-Hilfiker, Felipe D.;  Lee, Ben H.;  Schroder, Jason C.;  Campuzano-Jost, Pedro;  Jimenez, Jose L.;  Guo, Hongyu;  Sullivan, Amy P.;  Weber, Rodney J.;  Green, Jaime R.;  Fiddler, Marc N.;  Bililign, Solomon;  Campos, Teresa L.;  Stell, Meghan;  Weinheimer, Andrew J.;  Montzka, Denise D.;  Brown, Steven S.
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
sulfate  nitrate  winter  anthropogenic emissions  PM2.5  
The response of soil solution chemistry in European forests to decreasing acid deposition 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (8) : 3603-3619
作者:  Johnson, James;  Pannatier, Elisabeth Graf;  Carnicelli, Stefano;  Cecchini, Guia;  Clarke, Nicholas;  Cools, Nathalie;  Hansen, Karin;  Meesenburg, Henning;  Nieminen, Tiina M.;  Pihl-Karlsson, Gunilla;  Titeux, Hugues;  Vanguelova, Elena;  Verstraeten, Arne;  Vesterdal, Lars;  Waldner, Peter;  Jonard, Mathieu
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
acid deposition  air pollution  aluminium  critical loads  dissolved organic carbon  nitrogen  soil acidification  sulphur  
Production (via N-fertilization) and correction (by liming) of acidity in soils contribute a huge efflux of CO2 to atmosphere: Real or arbitrary? 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (8) : 3280-3281
作者:  Datta, Ashim;  Mandal, Biswapati
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/09
Nitrogen fertilization raises CO2 efflux from inorganic carbon: A global assessment 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (7) : 2810-2817
作者:  Zamanian, Kazem;  Zarebanadkouki, Mohsen;  Kuzyakov, Yakov
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
CO2 efflux  global acidification assessment  global warming  mitigation policy  nitrogen fertilization  soil acidification mechanisms  soil inorganic carbon  
Nitrogen limitation of decomposition and decay: How can it occur? 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (4) : 1417-1427
作者:  Averill, Colin;  Waring, Bonnie
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
carbon storage  decomposition  microbial ecology  nitrogen  nutrient limitation  soil  
Changes in Pore Water Quality After Peatland Restoration: Assessment of a Large-Scale, Replicated Before-After Control-Impact Study in Finland 期刊论文
WATER RESOURCES RESEARCH, 2017, 53 (10)
作者:  Menberu, Meseret Walle;  Marttila, Hannu;  Tahvanainen, Teemu;  Kotiaho, Janne S.;  Hokkanen, Reijo;  Move, Bjorn;  Ronkanen, Anna-Kaisa
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09