Africa

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Marilyne Bonnet, souriante, sur un fond végétal, posant à côté d'un panneau indiquant "Epicentre"

Maryline Bonnet: from humanitarian medicine to clinical research

Distinguished scientists do not always follow a traditional academic path. That is certainly true for Maryline Bonnet who just received the Christophe Mérieux Prize for her work fighting tuberculosis and HIV. She began her career as a practising pulmonologist travelling the globe to care for people...
Fruit trees and legumes combined with food crops

Carbon storage: what matters is the input!

After 15 years of climate smart agricultural practices in Madagascar, researchers are categorical: while these alternative methods help increase soil carbon storage, their effectiveness varies substantially. The assessment must therefore be carried out on the scale of the territory.
Root nodules of Discaria (Order: Rosales), a non-legume species capable of nitrogen-fixing symbiosis.

Nitrogen-fixing symbioses reveal themselves

Recent research has revealed the origin and evolution of symbiotic relationships between certain plants and soil bacteria in order to use atmospheric nitrogen. This knowledge could ultimately contribute to the development of sustainable agriculture minimising the use of chemical fertilisers.
Water run-off on degraded soil and gully erosion due to flooding, in the Mélé Haoussa basin in Niger

New hydroclimatic conditions in the Sahel

The latest figures on soil and climate help explain the enigmatic ups and downs observed in Sahelian hydrology for decades. Knowledge of the mechanisms involved paves the way for practical solutions to adapt agriculture to new environmental conditions.
The fruit clusters of Coccoloba uvifera give it its nickname of sea grape.

Unwavering symbiosis

Research conducted on the introduction of a tree from extreme environments into the sand dunes of Senegal shows its solid relationship with a fungus. This fungus naturally accompanies the tree from its environment of origin, on the other side of the Atlantic.