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November 2025

Marine phytoplankton face eco-evolutionary pressure to regulate their vertical position in the ocean to access light, which is abundant towards the surface, and nutrients, which are found deeper down the water column. All phytoplankton experience gravitational sinking, which can contribute to their vertical migration. However, the biophysical and molecular mechanisms that impact gravitational sinking have not been systematically characterized across taxa and environmental conditions. Here, Wu et al. combine simulations with measurements of cell mass, volume, and composition to investigate the effects of nutrient availability on gravitational sinking in nine representative unicellular pico- and nanoplankton species. They find that gravitational sinking becomes faster in most species when starved, but the biophysical changes responsible for this vary across species and starvation conditions. For example, the faster sinking of Chaetoceros calcitrans is nearly exclusively driven by cell density whereas that of Emiliania huxleyi is due to cell volume. Overall, their work reveals that phytoplankton physiology has evolved multiple mechanisms that impact gravitational sinking in response to starvation, possibly to support the vertical migration of the cell. This scanning electron microscopy image of Tetraselmis sp., a green alga, portrays the sinking of the cell following starvation.

Image Credit: Teemu Miettinen, Margaret Bisher, Abigail Lytton-Jean

Essay

Bacterial immune systems as causes and consequences of microbiome structure

Rafael Custodio, Ellinor O. Alseth, Michael A. Brockhurst, Sam P. Brown, Edze R. Westra

Perspectives

Research Articles

Enrichment of root-associated Streptomyces strains in response to drought is driven by diverse functional traits and does not predict beneficial effects on plant growth

Citlali Fonseca-Garcia, Dean Pettinga, Daniel Caddell, Hannah Ploemacher, Katherine Louie, Benjamin P. Bowen, Joelle Park, Jesus Sanchez, Alen Zimic-Sheen, Matthew F. Traxler, Trent R. Northen, Devin Coleman-Derr

Diverse biophysical and molecular mechanisms drive phytoplankton sinking in response to starvation

Yanqi Wu, Vieyiti K. Kouadio, Thomas R. Usherwood, Justin Li, Margaret Bisher, Reshum Aurora, Aaron Z. Lam, Alice R. Lam, Abigail K. R. Lytton-Jean, Scott R. Manalis, Teemu P. Miettinen

Collaborative rule learning promotes interbrain information alignment

Denise Moerel, Tijl Grootswagers, Genevieve L. Quek, Sophie Smit, Manuel Varlet

Eye blinks synchronize with musical beats during music listening

Yiyang Wu, Xiangbin Teng, Yi Du

A framework to determine active neurons and networks within the mouse brain reveals how brain activity changes over the course of the day

Guanhua Sun, Tomoyuki Mano, Shoi Shi, Alvin Li, Koji L Ode, Alex Rosi-Andersen, Erica Pedron, Steven A. Brown, Hiroki R Ueda, Konstantinos Kompotis, Daniel B. Forger

Transient frontopolar cortex stimulation induces prolonged disruption to counterfactual processing

Matthew Ainsworth, Juan M. Galeazzi, Carlos Pedreira, Mark G. Stokes, Mark J. Buckley

Cardiac, respiratory, and gastric rhythms independently modulate motor corticospinal excitability in humans

Tahnée Engelen, Teresa Schuhmann, Alexander T. Sack, Catherine Tallon-Baudry

Sleep deprivation and sleep intensity exert distinct effects on cerebral vasomotion and brain pulsations driven by the respiratory and cardiac cycles

Sara Marie Ulv Larsen, Sebastian Camillo Holst, Anders Stevnhoved Olsen, Brice Ozenne, Dorte Bonde Zilstorff, Kristoffer Brendstrup-Brix, Pia Weikop, Simone Pleinert, Vesa Kiviniemi, Poul Jørgen Jennum, Maiken Nedergaard, Gitte Moos Knudsen

Oxytocin neurons drive melanocortin circuit maturation via vesicle release during a neonatal critical period

Pierre-Yves Barelle, Fabienne Schaller, Soyoung Park, Emilie Caron, Jessica Klucznik, Phillipe Ciofi, Françoise Muscatelli, Sebastien G. Bouret

Episodic memory involves transient and sparse connectivity aligned to both internal and external events

Adam J. O. Dede, Zachariah R. Cross, Samantha M. Gray, Joseph P. Kelly, Qin Yin, Parisa Vahidi, Eishi Asano, Stephan U. Schuele, Joshua M. Rosenow, Joyce Y. Wu, Sandi K. Lam, Jeffrey S. Raskin, Jack J. Lin, Olivia Kim McManus, Shifteh Sattar, Ammar Shaikhouni, David King-Stephens, Peter B. Weber, Kenneth D. Laxer, Peter Brunner, Jarod L. Roland, Ignacio Saez, Fady Girgis, Robert T. Knight, Noa Ofen, Elizabeth L. Johnson

Cardiometabolic health and physical robustness map onto distinct patterns of brain structure and neurotransmitter systems

Eliana Nicolaisen-Sobesky, Somayeh Maleki Balajoo, Mostafa Mahdipour, Agoston Mihalik, Mahnaz Olfati, Felix Hoffstaedter, Janaina Mourão-Miranda, Masoud Tahmasian, Simon B. Eickhoff, Sarah Genon

Context-dependent activation of V1 parvalbumin interneurons enhances visual discrimination

Lilia Kukovska, Katharina A. Wilmes, Natsumi Y. Homma, Claudia Clopath, Jasper Poort

Amyloid precursor protein modulates cerebellar Purkinje cell activity and motor function through regulation of Nav1.6 currents

Miao-Jin Ji, Tong-Xuan Wu, Chenhao Tian, Xiang Cao, Ruyuan Wei, Yin-Yin Yang, Xinran Meng, Huanyao Tang, Tiantao Cui, Jiao Yang, Xin Tang, Chao Liu

Environmental noise-induced changes to the IC-SNc circuit promotes motor deficits and neuronal vulnerability in a mouse model of Parkinson’s Disease

Chi Cui, Yibo Yao, Yulong Shi, Jie Lei, Kun Ren, Kexing Wan, Tongxia Li, Gangan Luo, Qian Xu, Ming Li, Xiang Peng, Xueke Yang, Jian Yang, Junsong Du, Sitong Chen, Bo Tian, Pei Zhang

Large-scale seroepidemiology uncovers nephro-urological pathologies in people with tau autoimmunity

Andreia D. Magalhães, Marc Emmenegger, Elena De Cecco, Manfredi Carta, Karl Frontzek, Andra Chincisan, Jingjing Guo, Simone Hornemann, Adriano Aguzzi

A common pathway controls cell size in the sepal and leaf epidermis leading to a nonrandom pattern of giant cells

Frances K. Clark, Gauthier Weissbart, Xihang Wang, Kate Harline, Chun-Biu Li, Pau Formosa-Jordan, Adrienne H. K. Roeder

Foxi2 and Sox3 are master transcription regulators that control ectoderm germ layer specification in Xenopus

Clark L. Hendrickson, Ira L. Blitz, Amina Hussein, Kitt D. Paraiso, Jin S. Cho, Michael W. Klymkowsky, Matthew J. Kofron, Ken W. Y. Cho

The planarian dorsal–ventral boundary regulates anterior–posterior axis growth and patterning

Chloe L. Maybrun, Isaac M. Oderberg, Michael A. Gaviño, Thomas F. Cooke, Kyungyong Choi, Jongyoon Han, Peter W. Reddien

The blood–brain barrier regulates brain tumor growth through the SLC36 amino acid transporter Pathetic in Drosophila

Qian Dong, Edel Alvarez-Ochoa, Phuong-Khanh Nguyen, Paul Orih, Natasha Fahey-Lozano, Hina Kosakamoto, Fumiaki Obata, Cyrille Alexandre, Louise Y. Cheng

RNA-binding protein IMP1/ZBP1 directs local translation in microglial processes to regulate motility and phagocytosis during inflammation

Josune Imaz-Iruretagoyena, Maite Blanco-Urrejola, Irene Núñez-García, Irene García-Toledo, Luis C. Fernández-Beltrán, Mar Márquez, Silvia Corrochano, Amanda Sierra, Jimena Baleriola

Chromosome duplication causes premature aging via defects in ribosome quality control

Leah E. Escalante, James Hose, Jamie M. Ahrens, Hollis Howe, Norah Paulsen, Sofia J. Liss, Michael Place, Audrey P. Gasch

Hydroxyurea induces an oxidative stress response that triggers ER expansion and cytoplasmic protein aggregation

Ana Sánchez-Molina, Manuel Bernal, Joel D. Posligua-García, Antonio J. Pérez-Pulido, Laura de Cubas, Elena Hidalgo, M.-Henar Valdivieso, Silvia Salas-Pino, Rafael R. Daga

The cell cycle regulator PLK1 promotes murine melanoma progression by regulating the transcription factor BACH1

Fengyi Mao, Sai Wu, Derek B. Allison, Daheng He, Yifan Kong, Chaohao Li, Zhiguo Li, Yanquan Zhang, Xinyi Wang, Qiongsi Zhang, Chi Wang, Xiaoqi Liu

The novel GlcNAc 6-phosphate dehydratase NagS governs a metabolic checkpoint that controls nutrient signaling in Streptomyces

Chao Li, Mia Urem, Ioli Kotsogianni, Josephine Lau, Chao Du, Somayah S. Elsayed, Nathaniel I. Martin, Iain W. McNae, Patrick Voskamp, Christoph Mayer, Sébastien Rigali, Navraj Pannu, Jan Pieter Abrahams, Lennart Schada von Borzyskowski, Gilles P. van Wezel

The RNA-binding protein RBM39 scaffolds an m⁶A-dependent RNA decay complex that destabilizes Tat transcripts and restricts HIV-1 reactivation

Xiaohui Deng, Siyi Xie, Mo Zhou, Quyu Yuan, Shuangxin Wu, Peiming Huang, Minghua Chen, Jianteng Zeng, Pengle Guo, Jie Qin, Cancan Chen, Jiaye Liu, Bingfeng Liu, Xin He, Liqin Sun, Hui Zhang, Linghua Li, Ting Pan

RNG2 tethers the conoid to the apical polar ring in Toxoplasma gondii to enable parasite motility and invasion

Romuald Haase, Bingjian Ren, Albert Tell i Puig, Alessandro Bonavoglia, Jean-Baptiste Marq, Rémy Visentin, Nicolas Dos Santos Pacheco, Bohumil Maco, Ricardo Mondragón-Flores, Oscar Vadas, Dominique Soldati-Favre

A novel targeting domain directs essential components of the cytosolic iron–sulfur cluster assembly pathway to the mitochondrion of Toxoplasma parasites

Evie R. Hodgson, Jenni A. Hayward, Rachel A. Leonard, Fadzai Victor Makota, Giel G. van Dooren

Short Reports

Functional and evolutionary synergy of trait components can explain the existence of leaf masquerade in katydids

J. Benito Wainwright, Charlotte E. J. Rolfe, Graeme D. Ruxton, Nathan W. Bailey

Genetic mapping in the red mason bee implicates ANTSR as an ancient sex-determining locus in bees and ants

Tilman Rönneburg, Demetris Taliadoros, Anna Olsson, Sara Magnusson, Linn Huser, Muhammad Nafiz Ikhwan Bin Nor Fuad, Turid Everitt, Giselle C. Martín-Hernández, Panagiotis Theodorou, Björn Cederberg, Robert J. Paxton, Karsten Seidelmann, Matthew T. Webster

Oxygen supersaturation has negligible effects on warming tolerance across diverse aquatic ectotherms

Graham D. Raby, Jeremy De Bonville, Leroy Reynolds, Zoe Storm, Zara-Louise Cowan, Moa Metz, Anna H. Andreassen, Leon Pfeufer, Emily R. Lechner, Erin M. C. Stewart, Robine H. J. Leeuwis, Rasmus Ern, Lorena Silva-Garay, Michael R. Skeeles, Dominique G. Roche, Rachael Morgan, Leon Green, Ben Speers-Roesch, Suzanne C. Mills, Timothy D. Clark, Fredrik Jutfelt

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Methods and Resources

Efficient and reliable spike sorting from neural recordings with UMAP-based unsupervised nonlinear dimensionality reduction

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Meta-Research Article

Benchmarking with synthetic communities provides a baseline for virus-host inferences from Hi-C proximity linking

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