Plants Use RNA to Talk to Neighbors
Plants Use RNA to Talk to Neighbors
A study finds that plants sharing the same growth medium can exchange microRNAs that silence genes in the recipient, suggesting the nucleic acids may act as signaling molecules.
Plants Use RNA to Talk to Neighbors
Plants Use RNA to Talk to Neighbors

A study finds that plants sharing the same growth medium can exchange microRNAs that silence genes in the recipient, suggesting the nucleic acids may act as signaling molecules.

A study finds that plants sharing the same growth medium can exchange microRNAs that silence genes in the recipient, suggesting the nucleic acids may act as signaling molecules.

News & Opinion
University of Pittsburgh Faculty Unionize
University of Pittsburgh Faculty Unionize
Lisa Winter | Oct 21, 2021
The faculty voted 1511 to 612 to affiliate with United Steelworkers.
Stress-Induced Molecular Globs Boost Bacterial Fitness
Stress-Induced Molecular Globs Boost Bacterial Fitness
Ruth Williams | Oct 21, 2021
Liquid conglomerations of molecules that form in bacterial cells in response to stress promote the cells’ survival, a study finds.
Red Blood Cells Activate Innate Immune System
Red Blood Cells Activate Innate Immune System
Abby Olena | Oct 20, 2021
Researchers link the ability of the cells to bind and present DNA from pathogens and cell death to anemia, which is common in COVID-19, and immune activation.
Surgeons Successfully Transplant a Pig Kidney into a Person
Surgeons Successfully Transplant a Pig Kidney into a Person
Chloe Tenn | Oct 20, 2021
The achievement bolsters hopes that nonhuman animals could be used to remedy the shortage of transplantable organs.
Sex of Fetus Affects Immune Response to COVID-19 During Pregnancy
Sex of Fetus Affects Immune Response to COVID-19 During Pregnancy
Amanda Heidt | Oct 20, 2021
Male placentas produce more proinflammatory molecules than female placentas, while people carrying male fetuses produce fewer antibodies in response to infection, a study finds.
Famous South African Sardine Run Doesn’t Benefit Sardines: Study
Famous South African Sardine Run Doesn’t Benefit Sardines: Study
Alex Billow | Oct 19, 2021
An analysis suggests that a commercially important mass migration of fish may have no real adaptive value.
Genetic Risks for Depression Differ Between Ancestral Groups
Genetic Risks for Depression Differ Between Ancestral Groups
Chloe Tenn | Oct 19, 2021
A large genome-wide association study in East Asians uncovers novel genetic links to depression, calling attention to the consequences of underrepresentation of non-European groups in genetic research data.
Leading Japanese Primate Research Center is Closing
Leading Japanese Primate Research Center is Closing
Chloe Tenn | Oct 19, 2021
Kyoto University is shuttering its Primate Research Institute after its director was dismissed for misuse of funding.
Mice that Survive Infection Pass on Stronger Immunity
Mice that Survive Infection Pass on Stronger Immunity
David Adam | Oct 18, 2021
Offspring of animals subjected to a real or simulated pathogen were more able to fend off disease, a study finds.
Scientists Face a Third Round of Charges by Mexican Government
Scientists Face a Third Round of Charges by Mexican Government
Chloe Tenn | Oct 15, 2021
Nearly three dozen of Mexico’s leading researchers are being accused of money laundering, embezzlement, and organized crime, a move other academics say is politically motivated.
Shrinking Quarantine
Shrinking Quarantine
Rachael Moeller Gorman | Oct 15, 2021
The CDC now suggests that only children who were within 3 feet, not 6 feet, of an infected student should quarantine, provided they were masked in a classroom. Does the science support this change?
How Commensal Gut Bacteria Keep Pathogens in Check
How Commensal Gut Bacteria Keep Pathogens in Check
Alejandra Manjarrez | Oct 14, 2021
Recent studies describe how resident microbiota appear to outcompete unwelcome visitors, either with superior weaponry or by guzzling up local resources.  
Sound Waves Aid Brain Tumor Treatment
Sound Waves Aid Brain Tumor Treatment
Ruth Williams | Oct 13, 2021
In a small clinical study, focusing ultrasound beams on tumors in patients’ brains helped open the blood-brain barrier to facilitate drug delivery.
Scientists Use Photosynthesis to Power an Animal’s Brain
Scientists Use Photosynthesis to Power an Animal’s Brain
Abby Olena | Oct 13, 2021
Injecting oxygen-generating algae into tadpoles allows brain activity to continue in the absence of oxygen, researchers find.
Neuroscientist Mortimer Mishkin Dies at 94
Neuroscientist Mortimer Mishkin Dies at 94
Lisa Winter | Oct 12, 2021
His work bridged the gap between psychology and neurobiology.
Repurposed Drug Reverses Signs of Alzheimer’s in Mice, Human Cells
Repurposed Drug Reverses Signs of Alzheimer’s in Mice, Human Cells
Jef Akst | Oct 12, 2021
Researchers say they hope to launch a clinical trial to test bumetanide, a diuretic approved in 2002, but how it might improve neural functioning is unclear.
Chinchilla Supplier Loses License over Animal Welfare Violations
Chinchilla Supplier Loses License over Animal Welfare Violations
Shawna Williams | Oct 11, 2021
Moulton Chinchilla Ranch, the main US source of the animals for research, had a years-long history of disturbing findings in USDA inspections.
New Ebola Case Confirmed in DRC Months After Previous Outbreak
New Ebola Case Confirmed in DRC Months After Previous Outbreak
Chloe Tenn | Oct 11, 2021
Ebola virus was detected in samples from a child who died last week, the World Health Organization and Democratic Republic of the Congo’s Ministry of Health announce.
Alzheimer’s Risk Gene Paradoxically Protects Against Memory Loss
Alzheimer’s Risk Gene Paradoxically Protects Against Memory Loss
Chloe Tenn | Oct 8, 2021
A new study links a variant of the apolipoprotein E gene called APOE ε4 to better memory in older age, even in the presence of amyloid plaques—a possible explanation for the variant’s persistence despite its association with an increased risk of Alzheimer’s disease.