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23 April 2018

The microbiome of a native plant is much more resilient than expected [Phys]

Without microorganisms humans would not be able to survive. Especially our gut flora is an extremely densely populated ecosystem that houses billions of bacteria which help us to digest or detoxify food, supply us with vitamins, or modulate our immune system. Similarly, plants have also a so-called microbiome. In contrast to animals and humans, microorganisms associated with plants are primarily soil microbiota.

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13 April 2018

New method predicts evolution [Phys]

Predicting chance-driven evolution seems impossible. Nevertheless, scientists from AMOLF in Amsterdam and the ESPCI in Paris have succeeded in making predictions about the evolution of a set of genes in E. coli. When and how genes mutate remains random, but it appears predictable which gene is more likely to evolve first, or if evolutionary deadlock arises. The results are published on 13 April in the journal Nature Communications.

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13 April 2018

De l’ADN jusqu’ici qualifié de "poubelle" se révèle essentiel à la survie des cellules sexuelles [Sciences et Avenir - Santé]

L’ADN dit "satellite" - des séquences répétitives que l’on a longtemps pensé inutiles, au point de les qualifier de "poubelles" - est en réalité essentiel à la survie des gamètes, selon une nouvelle étude.

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12 April 2018

La pollution à l’ozone menace aussi nos assiettes [The Conversation]

Troisième gaz à effet de serre, après le dioxyde de carbone et le méthane, l’ozone constitue en effet l’un des polluants atmosphériques les plus phytotoxiques (toxiques pour les plantes), causant des dommages importants sur les cultures agricoles dans le monde entier.

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12 April 2018

One-fifth of carbon entering coastal waters of eastern North America is buried [Phys]

Coastal waters play an important role in the carbon cycle by transferring carbon to the open ocean or burying it in wetland soils and ocean sediments, a new study shows.

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