Older woman with grey hair looking at camera and smiling
Adriana Hoffmann, Botanist and Environmentalist, Dies at Age 82
Hoffmann traveled through Chile cataloging its rare flora. Later, she fought to defend the country’s forests from commercial deforestation.
ABOVE: Courtesy of Leonora Calderón Hoffmann
Adriana Hoffmann, Botanist and Environmentalist, Dies at Age 82
Adriana Hoffmann, Botanist and Environmentalist, Dies at Age 82

Hoffmann traveled through Chile cataloging its rare flora. Later, she fought to defend the country’s forests from commercial deforestation.

Hoffmann traveled through Chile cataloging its rare flora. Later, she fought to defend the country’s forests from commercial deforestation.

ABOVE: Courtesy of Leonora Calderón Hoffmann

plants

A young arctic fox on green grass
Arctic Greening Won’t Save the Climate—Here’s Why
Donatella Zona | Mar 30, 2022
The growing season on the tundra is starting earlier as the planet warms, but the plants aren’t sequestering more carbon, a new study finds.
Man in personal protective equipment (glasses, gloves, cap, and coat) watching plants go through a piece of machinery.
Canada Approves World’s First Plant-Based COVID-19 Vaccine
Natalia Mesa | Feb 25, 2022
Canada has ordered 76 million doses of Covifenz, the main ingredient of which was manufactured in the leaves of a tobacco relative.
Molecular Farming: The Future of Pharmaceuticals
The Scientist Speaks - Molecular Farming: The Future of Pharmaceuticals
Niki Spahich, PhD | Nov 16, 2021
Julian Ma discusses past, present, and future uses of plant biotechnology for disease treatments.
Single white snowdrop flower
Plants in UK Bloom a Month Earlier Than in 1980s: Study
Natalia Mesa | Feb 2, 2022
Scientists warn that climate change–induced early flowering could have negative effects on wildlife, agriculture, and gardening.
A fresh, peeled lychee fruit held above a harvest of fresh lychees
Genome Spotlight: Lychee (Litchi chinensis)
Christie Wilcox | Jan 27, 2022
Whole genome sequences reveal multiple domestications of this agriculturally important tree and may hold the secrets to producing the sweet fruit year round.
Invasive <em>Phragmites australis</em> in North Carolina's Alligator River National Wildlife Refuge
Genome Spotlight: Common Reed (Phragmites australis)
Christie Wilcox | Dec 23, 2021
The first reference-quality genome for this grass species could aid managers in understanding and eradicating this highly invasive plant.
Photograph looking up a tree trunk
Contrary to Common Belief, Some Older Trees Make Fewer Seeds
Annie Melchor | Nov 1, 2021
An analysis of more than half a million trees reveals that many species begin to taper off seed production once they hit a certain size.
Plant cryptospore fossil found in 480 million-year-old Australian rock
Discovered: Fossilized Spores Suggestive of Early Land Plants
Ruth Williams | Aug 12, 2021
Spores found in 480 million-year-old rock bring the fossil record in line with molecular estimates of when plants first adapted to life on land.
A scanning electron micrograph of the picozoan Picomonas judraskeda
Picozoans Are Algae After All: Study
Christie Wilcox | May 6, 2021
Phylogenomics data place the enigmatic plankton in the middle of the algal family tree, despite their apparent lack of plastids—an organelle characteristic of all other algae.
Aphid Salivary Gene May Regulate Gall Color
Asher Jones | May 1, 2021
Whether the galls that aphids make on witch hazel leaves are red or green is associated with a gene expressed in the insects’ salivary glands.
Plant Cells Swap Organelles
Abby Olena | Jan 7, 2021
Their relocation explains horizontal genome transfer first described more than a decade ago.
Herbivore Body Size Influences Grazing Behavior, Poop Quality
Catherine Offord | Nov 1, 2020
Researchers disentangle complex connections among vegetation, herbivores, and dung in the South African savanna.
Infographic: Herbivore Dung Nutrients Vary Across the Savanna
Catherine Offord | Nov 1, 2020
In South Africa, the composition of droppings varies by species’ body sizes, and which animals are found where depends on vegetation density.
Space-Grown Lettuce Is Safe and Astronaut-Approved
Amy Schleunes | Mar 9, 2020
NASA’s vegetable production system, known as Veggie, may help pave the way for more sophisticated systems that could supplement astronauts’ diets during long trips to space.
What Makes a Venus Flytrap Snap
Kerry Grens | Mar 1, 2020
To avoid wasting digestive energy, the plant only seals shut after sensing certain prey movements.
Ants Produce Antibiotics that May Protect Plants
Emily Makowski | Mar 1, 2020
The antimicrobial compounds ants excrete to defend themselves from pathogens may protect plants as well.
Infographic: How a Venus Flytrap Snaps
Kerry Grens | Mar 1, 2020
Trigger hairs on the lobes of the trap are tuned to respond to wriggling prey.
Neanderthal Skeleton Find Supports Idea of Intentional Burials
Amy Schleunes | Feb 19, 2020
Microscopic plant remnants found near the bones indicate that the ancient humans practiced burying rituals, but the archaeological field is not in full agreement.
ants symbiotic plants
Image of the Day: Farming Ants
Amy Schleunes | Jan 22, 2020
Evolution imbued ants with an agriculture strategy that optimizes food rewards.