Algae the origin for plant’s drought alert system

Plants’ water-to-land leap marks one of the most important milestones in the evolution of life on Earth. But how plants managed this transition when faced with unfamiliar challenges such as drought and bright light has been unclear. Now, a new study shows that the built-in alert system that enables land…

Streptophyte algae triggered first land plants

About 510 million years ago, life thrived in Earth’s oceans and freshwater lakes, writes John McPhee in the (Nova Scotia) Chronicle Herald. The ancient ancestors of sea urchins, starfish and jellyfish abounded, as did plants such as red and green algae. There was life on land as well but in much more subtle forms…