Botany

MEMORY

The grande dame of botany

An advisor to students even before she studied biology, Graziela Barroso described 132 new species of plants

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Flora

The sounds of wounded plants

Experiment shows that plants subjected to stress can emit ultrasonic sounds

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RESEARCH ITINERARIES

From physics to the environment

Marco Aurélio Nalon talks about the use of data geoprocessing to map native vegetation in the state of São Paulo

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Biology

The clock that regulates sunflowers

Circadian clock controls maturation of the hundreds of tiny flowers that form concentric circles on the heads of adult sunflowers

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Biodiversity

The climate, a driver of diversification

Regional rainfall patterns can be a decisive factor in plant diversification

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Ecology

Sawdust shows which tree species has been cut

Anti-illegal-logging technique identifies trees from sawdust using a microscope

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Ecology

Hidden life in rupestrian grasslands

Microorganisms help plants survive in the nutrient-poor soil of rupestrian grasslands

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PHOTOLAB

On top of Brazil

Serra do Imeri could be the birthplace of many animal and plant lineages from the Amazon and the Atlantic Forest

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Botany

Anti-fungus radiation in herbariums

Lonizing radiation used to eliminate fungi and insects from botanical samples

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ETHNOBOTANY

Unconventional food plants in the Brazilian diet

Studies propose strategies for increasing the consumption of unconventional food plants in Brazil

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Botanics

Queen of the water lilies

Victoria boliviana is the newest species of giant water lily to be recognized by science

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Botanics

Farming with lunar soil

Plants cultivated in lunar soil grow slower and show more signs of stress than those grown in volcanic ash from Earth

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Paleontology

São Paulo was once covered by forest

São Paulo Metropolitan Area was once covered by vast forest of araucaria trees between 180,000 and 135,000 years ago

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BOTANY

Collection from the Dutch Brazil era includes illustrations of almost 200 plants

Among the flora of northeastern Brazil drawn in the seventeenth century are 35 exotic species originating from abroad, such as sunflowers

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biotechnology

Artificial neuron controls carnivorous plant

Researchers build artificial neuron with material compatible with biological tissues

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Obituary

Two lives dedicated to biodiversity

Thomas Lovejoy and Edward Wilson are unforgettable benchmarks with respect to the importance of nature and conservation

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Biodiversity

Wild species at the table

Wild varieties can enrich the diet and the decor

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Linguistics

A neglected threat to ethnobotany

Study shows that language extinction could lead to incalculable losses of medicinal knowledge

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Climate

Cerrado under threat

The Cerrado is getting hotter, drier, and more prone to fire

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biodiversity

South America’s Endangered Oases

With only 4% of their area protected, fog oases are threatened by urbanization, mining, increased air pollution, and off-road trails

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INTERVIEW

Carlos Alfredo Joly: It’s time to focus on biodiversity

Botanist who created the Biota program states that defending the preservation of biological wealth is key to fighting climate change

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Video

The plant biological clock benefits agriculture

Understanding the plant circadian rhythms, and learning how to manipulate them, may widen cultivation options | 2'42

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Careers

Drawn to nature

Cecília Tomasi, an illustrator who worked at the São Paulo Botanical Institute for 30 years, has dedicated her career to depicting Brazilian flora

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Photolab

The phoenix tree

Like the mythical bird that rises from the ashes, the andira tree sprouts from the ground after wildfires in the Cerrado

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Botany

Tropical trees die sooner

Tropical species have average lifespans of 186 years, while temperate species live for an average 322 years, a study on 438 tree species shows

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Biology

Underground dispute

A team of researchers from the USA, Spain, and Brazil have explained the growth behavior of plant roots

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Memory

The chemist of evolution

Otto Gottlieb associated the structural complexity of substances with the development plants and their environment

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Obituary

The pharmacy of plants

Elisaldo Carlini, a pioneer in the study of medicinal plants and cannabis compounds, dies at 90 years of age

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Genomics

Disease-immune orange trees

New cultivars developed at the Campinas Agronomic Institute using tangerine genes show resistance to citrus variegated chlorosis

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Photolab

Plant-stem lace

If you take a thin slice of a young stem of Acleisanthes chenopodioides and look at it under a microscope, this is what you will see

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