@article{xu_zhang_zhu_xiao_zhu_zhang_yu_li_zhu_tu_et al._2020, title={Large losses of ammonium-nitrogen from a rice ecosystem under elevated CO2}, volume={6}, ISSN={["2375-2548"]}, DOI={10.1126/sciadv.abb7433}, abstractNote={Carbon dioxide enrichment facilitates nitrogen loss through anaerobic oxidation of ammonium coupled to the reduction of iron. Inputs of nitrogen into terrestrial ecosystems, mainly via the use of ammonium-based fertilizers in agroecosystems, are enormous, but the fate of this nitrogen under elevated atmospheric carbon dioxide (CO2) is not well understood. We have taken advantage of a 15-year free-air CO2 enrichment study to investigate the influence of elevated CO2 on the transformation of ammonium-nitrogen in a rice ecosystem in which ammonium is usually assumed to be stable under anaerobic conditions. We demonstrate that elevated CO2 causes substantial losses of ammonium-nitrogen that result from anaerobic oxidation of ammonium coupled to reduction of iron. We identify a new autotrophic member of the bacterial order Burkholderiales that may use soil CO2 as a carbon source to couple anaerobic ammonium oxidation and iron reduction. These findings offer insight into the coupled cycles of nitrogen and iron in terrestrial ecosystems and raise questions about the loss of ammonium-nitrogen from arable soils under future climate-change scenarios.}, number={42}, journal={SCIENCE ADVANCES}, author={Xu, Chenchao and Zhang, Kaihang and Zhu, Wanying and Xiao, Jing and Zhu, Chen and Zhang, Naifang and Yu, Fangjian and Li, Shuyao and Zhu, Chunwu and Tu, Qichao and et al.}, year={2020}, month={Oct} }
 @article{patil_lee_macias_lam_xu_jones_ho_rodriguez-puebla_chen_2009, title={Robe of Cyclin D1 as a Mediator of c-Met- and beta-Catenin-Induced Hepatocarcinogenesis}, volume={69}, ISSN={["1538-7445"]}, DOI={10.1158/0008-5472.CAN-08-2514}, abstractNote={Abstract}, number={1}, journal={CANCER RESEARCH}, author={Patil, Mohini A. and Lee, Susie A. and Macias, Everardo and Lam, Ernest T. and Xu, Chuanrui and Jones, Kirk D. and Ho, Coral and Rodriguez-Puebla, Marcelo and Chen, Xin}, year={2009}, month={Jan}, pages={253–261} }
 @article{chen_tu_burton_watson_burkey_hu_2007, title={Plant nitrogen acquisition and interactions under elevated carbon dioxide: impact of endophytes and mycorrhizae}, volume={13}, ISSN={["1365-2486"]}, DOI={10.1111/j.1365-2486.2007.01347.x}, abstractNote={Abstract}, number={6}, journal={GLOBAL CHANGE BIOLOGY}, author={Chen, Xin and Tu, Cong and Burton, Michael G. and Watson, Dorothy M. and Burkey, Kent O. and Hu, Shuijin}, year={2007}, month={Jun}, pages={1238–1249} }
 @article{tu_booker_watson_chen_rufty_shi_hu_2006, title={Mycorrhizal mediation of plant N acquisition and residue decomposition: Impact of mineral N inputs}, volume={12}, ISSN={["1365-2486"]}, DOI={10.1111/j.1365-2486.2006.01149.x}, abstractNote={Abstract}, number={5}, journal={GLOBAL CHANGE BIOLOGY}, author={Tu, C and Booker, FL and Watson, DM and Chen, X and Rufty, TW and Shi, W and Hu, SJ}, year={2006}, month={May}, pages={793–803} }
 @article{hu_tu_chen_gruver_2006, title={Progressive N limitation of plant response to elevated CO2: a microbiological perspective}, volume={289}, ISSN={["0032-079X"]}, DOI={10.1007/s11104-006-9093-4}, number={1-2}, journal={PLANT AND SOIL}, author={Hu, Shuijin and Tu, Cong and Chen, Xin and Gruver, Joel B.}, year={2006}, month={Nov}, pages={47–58} }
 @article{wu_chen_tang_2005, title={Lead accumulation in weed communities with various species}, volume={36}, ISSN={["1532-2416"]}, DOI={10.1081/CSS-200062486}, abstractNote={Abstract The use of weeds to eliminate pollutants from agroecosystem has been considered recently. This study examined the ability of 17 weed species and 5 weed species combinations to accumulate lead (Pb) in polluted soil in greenhouse. The biomass production of all weed species used in this experiment was not affected by Pb in the polluted soil (334±22 Pb mg/kg soil) compared with growth in unpolluted soil (23±1 mg Pb/kg soil). Lead was accumulated mainly in roots of most weed species except Kummerowia striata, Ixeris chinensis, Digitaria ciliaris, Echinochloa crugalli var. mitis that largely accumulated Pb in their shoots. Total Pb accumulation of weed communities with four or six species were higher than that with two or eight species. Total Pb accumulation increased with enhancing biomass of weed communities.}, number={13-14}, journal={COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS}, author={Wu, CH and Chen, X and Tang, JJ}, year={2005}, pages={1891–1902} }