Although pollen has covered cars for weeks and allergy sufferers have been sneezing, we think of sex as being the realm of animals. But plant sex can be quite interesting, especially in species that can have male or female flowers.
A group of scientists from Russia and Ireland found out how the quality of tissue-engineered biomeshes (biological "frame" which is used for tissue repair) is affected by various chemical fixatives (cross-linkers). Such compounds form chemical "bridges" between bio mesh polymers and change its mechanical and functional properties. It will help to select cross-linkers for the treatment of certain transplants. The research results are published in the official journal of the International Xenotransplantation Association.
BINGHAMTON, N.Y. - Light at night might be convenient for humans, but it's having a detrimental effect on amphibian populations, according to new research from Binghamton University, State University of New York.
From our perches in the urban jungle - or even in the leafier parts of suburbia - we often have a tough time naming the last plant we saw. Even if we just ate part of it. This is a symptom of "plant blindness," a term coined two decades ago by researchers who showed that modern civilization is perilously disconnected from the plant kingdom. Our blindness has progressed even further since then, to the point where we hardly recognize the plants that feed us every day.
As food enters the intestine, it embarks on a windy, lengthy journey. For most of the route, its surroundings don't appear to change much. But new research from Rockefeller's Daniel Mucida shows that the food-processing canal consists of compartments that pace the immune system's reactions to the food passing through--with less aggressive defenses in the first segments where nutrients are absorbed, and more forceful responses at the end, where pathogens are eliminated.
Crabs from a single species rely on different camouflage techniques depending on what habitat they live in, new research shows.
Symbiotic algae living inside corals provide those animals with their vibrant color, as well as many of the nutrients they need to survive. That algae, and other microbes within the bodies of corals, have been extensively studied--yet until now, researchers have largely ignored the microbial communities just outside of the coral colonies.
Imagine a technology that could target pesticides to treat specific spots deep within the soil, making them more effective at controlling infestations while limiting their toxicity to the environment.
Anthropologists discovered a tool made out of high-quality translucent jadeite with an intact rosewood handle at a site where the ancient Maya processed salt in Belize. The discovery of these high-quality materials--jadeite and rosewood--used as utilitarian tools, demonstrates that salt workers played an important role in the Classic Maya marketplace economy more than 1,000 years ago.
It's rare that scientists see the good in the presence of an invasive species. But Washington University in St. Louis researchers discovered that a native mosquito in Missouri has fewer parasites when it shares its waters with an interloper.
Neanderthals and modern humans diverged at least 800,000 years ago, substantially earlier than indicated by most DNA-based estimates, according to new research by a UCL academic.
Removing invasive shrubs to restore native forest habitat brings a surprising result, according to Penn State researchers, who say desired native understory plants display an unexpected ability and vigor to recolonize open spots.
May 15, 2019 - We all know plants need nutrients, especially nitrogen and phosphorus. To give crops a boost, they are often put on fields as fertilizer. But we never talk about where the nutrients themselves come from.
Many kinds of cells can sense flow, just as our skin cells can feel the difference between a gentle breeze and a strong wind. But we depend on feeling the force involved, the push-back from the air against us. Without that push, we can't distinguish speed; when the windows are closed, our skin can't feel any difference in air force whether we are sitting in an office, a speeding car or a cruising airplane.
Most organisms on Earth have circadian clocks. In mammals, the circadian pacemaker is located in the suprachiasmatic nucleus (SCN) of the brain. The SCN consists of about 20,000 neurons, and oscillatory gene expression with an approximate 24-hour period can be observed independently in each.