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According to scientists, plants produce their own “medicine” in order to survive

According to scientists, plants produce their own "medicine" in order to survive

Salicylic acid production initiates a series of protective effects, for example protecting the chloroplasts of plants, where photosynthesis takes place.

UC Riverside researchers recently published a study in the journal Science Advances on plants’ production of salicylic acid, which protects them from environmental threats such as insects, drought or heat.

Scientists have studied a plant called Arabidopsis, but they hope to be able to apply the knowledge they have gained to many other plants, including plants grown for food purposes. Phys in his article.

“We would like to be able to use the knowledge gained to improve plant resistance. This will be crucial to the food supply in a world that is getting hotter and brighter.”

Jin-Cheng Wang, a UCR plant geneticist, said.

As a result of environmental stress, reactive oxygen species (ROS) are produced in all living things – this causes freckles and burns, for example – and in the case of plants, elevated ROS levels can be fatal. However, this is a double-edged sword, as it plays an important role in plant cells at low levels.

“At non-lethal levels, reactive oxygen species is like an emergency call allowing the production of protective hormones like salicylic acid.”

Wang said.

The research team discovered that under the influence of heat, constant sunlight or drought, the sugar-producing system of plant cells begins to produce alarm molecules known as MEcPP, the accumulation of which leads to the production of salicylic acid and initiates a series of protective effects. in cells.

According to Katayoon Dehesh, professor of molecular biology at UCR, salicylic acid helps plants become more resilient to the stresses of climate change, a step forward in combating the effects of climate warming on everyday life.

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These effects extend beyond our food chain. Plants clean the air by sequestering carbon dioxide, give us shade, and provide a home for many animals. The benefits of increasing their survival are enormous.”

he added.

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