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TOPIC: trees memory

Green

How A "Climatic Memory" Gene Helps Trees Face Environmental Threat

Humans and animals have strategies to deal with their surroundings, including the impacts of climate change. But what about trees? Researchers in Spain have identified mechanisms in plant life to learn over time from unfavorable environmental situations.

OVIEDO — When it doesn't rain, humans look for water under rocks. Throughout history, we have developed more or less effective techniques (and more or less respectful of the environment) to always have something to drink. Reservoirs, wells or desalination plants help us, when available, to cope with periods of drought.

Animals also have strategies to deal with lack of water, such as moving (sometimes long distances) in search of new reserves or reducing hydration needs by lowering physical activity.

But how does a tree survive?

These living beings are anchored to the same place, where they spend tens, hundreds and even thousands of years. For this reason, their strategies to deal with stressful situations, such as a drought, a heat wave or a plague, are very different from those of animals.

New research has discovered something incredible: trees have a kind of climatic memory in their genes.

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