Penn researchers and colleagues have discovered how plants respond to seasonal flowering cues while protecting the stem cells at their growing tip, enabling continuous reproduction in changing ...

Once a seed germinates, it is committed to one location. Plants are sessile—stuck where they started out—forced to cope with whatever conditions arrive next. The only way out of trouble is to rebuild ...

You might think flowers don’t have much choice about who they mate with, given they are rooted to the ground and can’t move. But when scientists from Nagoya, Japan used powerful microscopes to study ...