Organised growth contributes towards the creation or maintenance of a defined structure. It occurs when plant organs such as the growing points of shoots or roots (apical meristems), leaf initials, young flower buds or small fruits, are transferred to culture and continue to grow with their structure preserved. Growth that is coherently organised also occurs when organs are induced. This may occur in vitro either directly upon an organ or upon a piece of tissue placed in culture (an explant), or during the culture of previously unorganised tissues. The process of de novo organ formation is called organogenesis or morphogenesis (the development of form).
Was this article helpful?