PNAS5d
Iron-molybdenum cofactor synthesis by a thermophilic nitrogenase devoid of the scaffold NifEN
Edited by Éva Kondorosi, Hungarian Academy of Sciences, Biological Research Centre, Szeged, Hungary; received March 26, 2024; accepted October 7, 2024 ...
PNAS9d
Can microbiome adaptations protect crops from pests and climate change?
Kevin Hockett is an avid sourdough baker. As a microbial ecologist at Pennsylvania State University in University Park, he knows that each of his perfectly risen loaves is, in large part, the result ...
PNAS10d
In This Issue
Isoprene, an aerosol and ozone precursor, is mainly emitted by plants, particularly trees. Hui Wang et al. measured isoprene emissions from sedges, a class of herbaceous plants found in both natural ...
PNAS13d
Brain signals show how monkeys “choke” under pressure
Research in rhesus macaques suggests a neural correlate for choking under pressure. Image credit: Shutterstock/MusicSounds From the French golfer Jean van de Velde ...
PNAS11d
RNA dynamics in oxidative stress: From obscurity to mechanistic understanding in health and disease
Molecular oxidation in response to reactive oxygen species (ROS) occurs both spontaneously in cellular systems and as a consequence of environmental exposures to various toxins. Given that RNAs are ...
PNAS6d
CTCF-dependent insulation of Hoxb13 and the heterochronic control of tail length
Contributed by Denis Duboule; received July 24, 2024; accepted October 12, 2024; reviewed by Terence D. Capellini and René Rezsohazy ...
PNAS25d
Caution urged for work with newly constructed human coronavirus
Hu et al. (1) report the construction of a chimeric coronavirus (rOC43-CoV2-S) in which the spike (S) protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) replaces that of the ...
PNAS16d
Stop using racist, unethical, and inappropriate names in taxonomy
When Carl Linnaeus invented binomial nomenclature in the 18th century, it provided a universal language for scientists. Giving each species a unique name is essential for effective communication, ...
PNAS23d
Protein research may hint at how human eggs survive for decades
Human eggs, called oocytes, have a superpower: They can stay in the ovaries for decades, from before a woman is born until she’s over age 40. Most of our cells are constantly turning over—dividing, ...
PNAS16d
Rapid shift in methane carbon isotopes suggests microbial emissions drove record high atmospheric methane growth in 2020–2022
Edited by Mark Thiemens, University of California San Diego, La Jolla, CA; received June 19, 2024; accepted September 5, 2024 ...
PNAS22d
Invasive plants and their root traits are linked to the homogenization of soil microbial communities across the United States
Invasive plants can have strong, cascading effects on recipient ecosystems. Using a functional trait framework has been useful in understanding the mechanisms underlying these invasion impacts.
PNAS26d
What’s driving big birth rate declines in developing countries? It’s complicated.
Neither of the two competing, long-debated explanations about birth rate declines may be entirely accurate. There could be big implications for policy and programs related to family planning for many ...