Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...

Researchers have developed so-called microbial cell factories -- using E. coli and yeast -- to produce a special class of plant hormones, known as strigolactones, at unprecedented levels.

Vascular tissue in the midrib and veins Branches of the xylem ... products of photosynthesis to other parts of the plant. Air spaces between cells within the leaf For the diffusion of gases.