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Daily briefing: Kill, confuse, eat — how to stop a plague of locusts

mercredi 8 juillet 2020 par Flora Graham
Nature, Published online: 08 July 2020; doi:10.1038/d41586-020-02067-0Inventive ways to tackle a second wave of locusts that threatens to devour East Africa's crops. Plus: Brazilian president Jair Bolsonaro has COVID-19, and San Quentin prison's coronavirus (...)

Extracellular proteostasis prevents aggregation during pathogenic attack

mercredi 8 juillet 2020 par Ivan Gallotta, Aneet Sandhu, Maximilian Peters, Martin Haslbeck, Raimund Jung, Sinem Agilkaya, Jane L. Blersch, Christian Rödelsperger, Waltraud Röseler, Chaolie Huang, Ralf J. Sommer, Della C. David
Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2461-zA systematic analysis of the proteostasis network of secreted proteins in Caenorhabditis elegans identifies numerous regulators of protein homeostasis outside the cell, and highlights the contribution of extracellular (...)

Ancient voyage carried Native Americans’ DNA to remote Pacific islands

mercredi 8 juillet 2020 par Ewen Callaway
Nature, Published online: 08 July 2020; doi:10.1038/d41586-020-02055-4Finding that some Polynesians have genetic ancestry from South America supports long-held theory that ancient populations met and produced offspring.

Tunable spin-polarized correlated states in twisted double bilayer graphene

mercredi 8 juillet 2020 par Xiaomeng Liu, Zeyu Hao, Eslam Khalaf, Jong Yeon Lee, Yuval Ronen, Hyobin Yoo, Danial Haei Najafabadi, Kenji Watanabe, Takashi Taniguchi, Ashvin Vishwanath, Philip Kim
Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2458-7Twisted double bilayer graphene devices show tunable spin-polarized correlated states that are sensitive to electric and magnetic fields, providing further insights into correlated states in two-dimensional moiré (...)

Coherent control of a surface structural phase transition

mercredi 8 juillet 2020 par Jan Gerrit Horstmann, Hannes Böckmann, Bareld Wit, Felix Kurtz, Gero Storeck, Claus Ropers
Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2440-4A structural phase transition from metal to insulator on a solid surface is controlled by an ultrafast sequence of optical pulses.

A bacterial cytidine deaminase toxin enables CRISPR-free mitochondrial base editing

mercredi 8 juillet 2020 par Beverly Y. Mok, Marcos H. de Moraes, Jun Zeng, Dustin E. Bosch, Anna V. Kotrys, Aditya Raguram, FoSheng Hsu, Matthew C. Radey, S. Brook Peterson, Vamsi K. Mootha, Joseph D. Mougous, David R. Liu
Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2477-4An interbacterial toxin that catalyses the deamination of cytidines within double-stranded DNA forms part of a CRISPR-free, RNA-free base editing system that enables manipulation of human mitochondrial (...)

Removal of atmospheric CO2 by rock weathering holds promise for mitigating climate change

mercredi 8 juillet 2020 par Johannes Lehmann, Angela Possinger
Nature, Published online: 08 July 2020; doi:10.1038/d41586-020-01965-7Large-scale removal of carbon dioxide from the atmosphere might be achieved through enhanced rock weathering. It now seems that this approach is as promising as other strategies, in terms of cost and CO2-removal (...)

Mounting evidence suggests coronavirus is airborne — but health advice has not caught up

mercredi 8 juillet 2020 par Dyani Lewis
Nature, Published online: 08 July 2020; doi:10.1038/d41586-020-02058-1Governments are starting to change policies amid concerns that tiny droplets can carry SARS-CoV-2. And after months of denying the importance of this, the World Health Organization is reconsidering its (...)

Sodium regulates clock time and output via an excitatory GABAergic pathway

mercredi 8 juillet 2020 par Claire Gizowski, Charles W. Bourque
Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2471-xThe authors demonstrate that clock time can be regulated by non-photic physiologically relevant cues and that such cues can drive unscheduled homeostatic responses via clock-output (...)

Pulling carbon from the sky is necessary but not sufficient

mercredi 8 juillet 2020
Nature, Published online: 08 July 2020; doi:10.1038/d41586-020-02001-4Carbon dioxide removal is becoming a serious proposition. But it is not a substitute for aggressive action to cut emissions.

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