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作者：Reay, Michaela K.; Sayer, Emma J.; Smith, Andrew; Pastor, Victoria; Kourmouli, Angeliki; Marshall, Miles; Grzesik, Robert T.; Evans, Iwan; Rumeau, Manon; Hart, Kris; Ma, Jiaojiao; Norby, Richard J.; MacKenzie, A. Robert; Hamilton, R. Liz; Hartley, Iain P.; Ullah, Sami
作者单位：University of Birmingham; University of Birmingham; University of Bristol; Lancaster University; Ulm University; Bangor University; Universitat Jaume I; United States Department of Energy (DOE); Oak Ridge National Laboratory; University of Exeter
摘要：Forests are potential carbon (C) sinks that partially offset anthropogenic carbon dioxide (CO2) emissions via enhanced C assimilation and productivity. However, the question remains whether mature trees will express sufficient plasticity in nutrient acquisition strategies to support enhanced growth under elevated CO2 (eCO2). Trees may sustain growth by investing C belowground to enhance nutrient acquisition, e.g., by increasing root absorptive surfaces for greater soil available resource explo...
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作者：Yi, Yong; Chen, Deshi; Ao, Juan; Zhang, Wenhua; Yi, Jianqiao; Ren, Xiaokun; Fei, Junjie; Li, Fengtian; Niu, Mengmeng; Chen, Hu; Luo, Yangkun; Luo, Zhijun; Xiao, Zhi Xiong Jim
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作者：Brennan, Reid S.; deMayo, James A.; Finiguerra, Michael; Baumann, Hannes; Dam, Hans G.; Pespeni, Melissa H.
作者单位：Helmholtz Association; GEOMAR Helmholtz Center for Ocean Research Kiel; University of Vermont; University of Connecticut; University of Connecticut
摘要：To persist under unprecedented rates of global change, populations can adapt or acclimate. However, how these resilience mechanisms interact, particularly the role of epigenetic variation in long- term adaptation, is unknown. To address this gap, we experimentally evolved the foundational marine copepod Acartia tonsa for 25 generations under ocean acidification, warming, and their combination and then measured epigenomic, genomic, and transcriptomic responses. We observed clear and consistent ...
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作者：Cui, Shuquan; Jeong, Daun; Shi, Yukai; Jahan, Nusrat; Lodge, Timothy P.; Bates, Frank S.; Ellison, Christopher J.
作者单位：University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities
摘要：Plastics offer innumerable societal benefits but simultaneously contribute to persistent environmental pollution, dominated by polyethylene (PE) and isotactic polypropylene (iPP). Melt blending and reformulating postconsumer PE and iPP into useful materials presents a promising recycling approach. However, such repurposed plastics are generally mechanically inferior due to an inability to efficiently separate polyolefins in mixed waste streams; phase separation of PE and iPP results in brittle...
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作者：Jones, Bradley S.; Pareek, Vikram; Hu, Daniel D.; Weaver, Simon D.; Syska, Camille; Galfano, Grace; Champion, Matthew M.; Champion, Patricia A.
作者单位：University of Notre Dame; University of Notre Dame; University of Notre Dame
摘要：Phagosomal lysis is essential for mycobacterial infection of macrophages. Acetylation is a protein modification mediated enzymatically by N-acetyltransferases (NATs) that impacts bacterial pathogenesis and physiology. To identify NATs required for lytic activity, we leveraged Mycobacterium marinum, a nontubercular pathogen and a model for Mycobacterium tuberculosis. M. marinum hemolysis is a proxy for phagolytic activity. We generated M. marinum strains with deletions in conserved NAT genes an...
