Botany

Ethnobotany

A plant with many uses dating back 2,700 years

Wild rue was used 2,700 years ago as a medicine, to purify spaces, and for its psychoactive effects

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Retrospect

RadamBrasil project celebrates 50 years

Radar mapping has uncovered natural riches, trained hundreds of specialists, and is used in research on relief, geology, soils, climate, and vegetation

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Paleoecology

The Atlantic Forest in layers

Research on microalgae in southern São Paulo reveals how an old lake transformed into a swamp

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Botany

Why does a rose smell like a rose?

Volatile organic compounds present in the aroma of roses trigger emotional response

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ECOLOGY

Research identifies priority areas for restoring native vegetation in Brazil

Regenerating 30% of the 76 million hectares mapped across six biomes could increase habitat availability for more than 11,000 animal and plant species, as well as helping to mitigate climate change

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photolab

A not-so-desert island

Some 1,300 plant and animal species live on Alcatrazes Island

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ITINERARIES

Paulo Takeo Sano combines botany and law to advocate for Cerrado communities

Biologist from USP works with populations that make a living from everlasting flowers

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BOTANY

Plants use pollen bombs to compete for space on hummingbird beaks

Success in competition between male gametes can increase chance of reproduction

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ENVIRONMENT

Aquifer depletion threatens forests and rivers

Over-exploitation and climate change are damaging environments that depend on underground water reserves

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Technology

Tree-planting capsules

Biodegradable tree seed capsules made of cardboard and starch improve germination

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Research itineraries

Originally from a riverside community, Gracialda Costa Ferreira investigates the identities of trees

Forest engineer also aims to improve the income of Amazonian communities

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Environment

Belo Monte Dam and drought cause the Volta Grande do Xingu region to dry up

Monitoring indicates that low water flow is preventing fish from reproducing and impeding the way of life of Indigenous people and riverside communities

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Botany

Gourmet vanilla only for agoutis

Vanilla chamissonis seeds, indigestible by omnivores, are consumed only by agoutis

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Global Warming

The Amazon is not uniformly affected by drought

The Amazon is not uniformly affected by drought

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Botany

Newly discovered but already endangered

New plant species found in Espírito Santo in 2023 already threatened with extinction

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Retrospect

The Amazon on the spice route

Leaves, fruit, bark, roots, oils, and resin from the forest boosted the economy and brought wealth to the region during the colonial period

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Archaeology

Corn arrived in Brazil via the western Amazon and was domesticated over the course of several waves of migration

Study reveals that primitive characteristics of the species still exist, despite long-term human intervention and cultivation in a diverse range of environments

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Agriculture

Passion fruit against the Sun

Passion fruit species recommended for insomnia could also be used in sunscreen

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Botany

Discreet and voracious

New species of carnivorous plant typical of the Cerrado and Caatinga biomes discovered in the Amazon

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Climate change

Bacteria in Amazon tree trunks are capable of absorbing methane

Study by international group indicates that the phenomenon occurs in non-flooded areas

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Biodiversity

Hurricane decimates pollinating hummingbirds

Hurricane decimates population of hummingbirds that pollinate plants on Caribbean island

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Botany

Thornless cactus lives in a burrow

New species of cactus has no thorns and grows buried among quartz

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Ethics

Botanists say no to racism

Racist term to be eliminated from scientific names of plants, fungi, and algae

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Biodiversity

Almost 2,500 species face extinction in Brazil

Almost 2,500 species of animals and plants at risk of extinction in Brazil

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Pharmacology

The cannabinoid tree

Jamaican nettletree produces cannabinoids, like cannabis

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ECOLOGY

Thousands of plant species live on rocks

Thousands of plant species live on rocks

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Retrospect

Glass negatives depict science in the early twentieth century

Botanical Garden of Rio de Janeiro and other institutions preserve rare photographic collections

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ECOLOGY

Invasive species in mangroves of São Paulo

Fast-growing invasive plant spreading through mangroves in the Santos estuary

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EVOLUTION

Neighbors who lend their DNA

Plants are descendants of algae that acquired genes from fungi and bacteria, genes that became essential to the structure of plant cells

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Biodiversity

Colors found among white sandy islands of the Amazon

White sandy areas of the Amazon are home to unique plant communities

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