A germinating seed must turn into a small plant before its reserves have exhausted
A germinating seed has only 48 hours to become a plant and survive - science news

A germinating seed has only two days to become a young seedling capable of photosynthesis otherwise, the plant will not survive. During these first 48 hours, it relies solely on its internal reserves, which are quickly consumed. If photosynthesis doesn’t start immediately after, the plant will die. A new study showed that this process is controlled by a key mechanism that direct the formation of chloroplasts from proplastids, hitherto poorly studied organelles. This mechanism ensures a rapid transition to autonomous growth, as soon as the seed decides to germinate.

Read the full story: University of Geneva
Scientific publication: Current Biology