Exogenous Nitric Oxide Delays Plant Regeneration from Protoplast and Protonema Development in .

Nitric oxide (NO) has been recognized as a major player in the regulation of plant physiology and development. NO regulates cell cycle progression and cell elongation in flowering plants and green algae, although the information about NO function in non-vascular plants is scarce. Here, we analyze the effect of exogenous NO on protonema growth.