The sunlight-collecting organelles known as chloroplasts solve a packing problem: how to optimize photosynthesis without ...

SAN ANTONIO — Students at Edison High School added a salt solution to their microscope slides and watched in awe Wednesday as tiny dots of chloroplasts in plant cells moved away from the outer walls.

The impacts of the prokaryotic ancestry of chloroplasts extend to the occurrence of a bacterial ‘alarm’ hormone, or alarmone, in plants, which is triggered by nutrient deficiency or stress. A new ...

Life as we know it wouldn’t be possible without chloroplasts — those tiny, bean-shaped structures inside plant and algae cells that harness the sun’s energy to turn water and carbon dioxide into ...