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作者：Sarai, Nicholas S.; Fulton, Tyler J.; O'Meara, Ryen L.; Johnston, Kadina E.; Brinkmann-Chen, Sabine; Maar, Ryan R.; Tecklenburg, Ron E.; Roberts, John M.; Reddel, Jordan C. T.; Katsoulis, Dimitris E.; Arnold, Frances H.
作者单位：California Institute of Technology; California Institute of Technology; Merck & Company
摘要：Volatile methylsiloxanes (VMS) are man-made, nonbiodegradable chemicals produced at a megaton-per-year scale, which leads to concern over their potential for environmental persistence, long-range transport, and bioaccumulation. We used directed evolution to engineer a variant of bacterial cytochrome P450BM3 to break silicon-carbon bonds in linear and cyclic VMS. To accomplish silicon-carbon bond cleavage, the enzyme catalyzes two tandem oxidations of a siloxane methyl group, which is followed ...
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作者：Leslie, Mitch
摘要：Viral protein prods nerve cells, may be treatment target
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作者：Machery, Edouard
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh
摘要：Unbound by empiricism, a philosopher's provocative musings inspire delight and vexation
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作者：[Anonymous]
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作者：Servick, Kelly; Chakradhar, Shraddha
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作者：Kamaru, Douglas N.; Palmer, Todd M.; Riginos, Corinna; Ford, Adam T.; Belnap, Jayne; Chira, Robert M.; Githaiga, John M.; Gituku, Benard C.; Hays, Brandon R.; Kavwele, Cyrus M.; Kibungei, Alfred K.; Lamb, Clayton T.; Maiyo, Nelly J.; Milligan, Patrick D.; Mutisya, Samuel; Ng'weno, Caroline C.; Ogutu, Michael; Pietrek, Alejandro G.; Wildt, Brendon T.; Goheen, Jacob R.
作者单位：University of Wyoming; University of Wyoming; State University System of Florida; University of Florida; Nature Conservancy; University of British Columbia; United States Department of the Interior; United States Geological Survey; University of Nairobi; Duke University; University of Glasgow; University of Glasgow; Nevada System of Higher Education (NSHE); University of Nevada Reno; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
摘要：Mutualisms often define ecosystems, but they are susceptible to human activities. Combining experiments, animal tracking, and mortality investigations, we show that the invasive big-headed ant (Pheidole megacephala) makes lions (Panthera leo) less effective at killing their primary prey, plains zebra (Equus quagga). Big-headed ants disrupted the mutualism between native ants (Crematogaster spp.) and the dominant whistling-thorn tree (Vachellia drepanolobium), rendering trees vulnerable to elep...
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作者：Ali, Saleem H.
作者单位：University of Delaware
摘要：A journalist probes tensions surrounding two minerals that are key to green technologies
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作者：Ivanov, Sergey; Harrison, Maria J.
作者单位：Cornell University; Boyce Thompson Institute for Plant Research
摘要：The mutualistic association between plants and arbuscular mycorrhizal (AM) fungi requires intracellular accommodation of the fungal symbiont and maintenance by means of lipid provisioning. Symbiosis signaling through lysin motif (LysM) receptor-like kinases and a leucine-rich repeat receptor-like kinase DOES NOT MAKE INFECTIONS 2 (DMI2) activates transcriptional programs that underlie fungal passage through the epidermis and accommodation in cortical cells. We show that two Medicago truncatula...
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作者：Slattery, Aidan; Wen, Zhenghui; Tenblad, Pauline; Sanjose-Orduna, Jesus; Pintossi, Diego; den Hartog, Tim; Noel, Timothy
作者单位：University of Amsterdam; Netherlands Organization Applied Science Research
摘要：The optimization, intensification, and scale-up of photochemical processes constitute a particular challenge in a manufacturing environment geared primarily toward thermal chemistry. In this work, we present a versatile flow-based robotic platform to address these challenges through the integration of readily available hardware and custom software. Our open-source platform combines a liquid handler, syringe pumps, a tunable continuous-flow photoreactor, inexpensive Internet of Things devices, ...
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作者：Migo-Sumagang, Maria Victoria; Aviso, Kathleen B.; Tan, Raymond R.
作者单位：University of the Philippines System; University of the Philippines Los Banos; De La Salle University
