Mirbelian theory

Mirbelian theory, developed by the French botanist Jean-Baptiste Mirbel, proposes that plant structures are formed through the activity of living cells that produce internal materials, like cell walls, as a response to environmental stimuli and growth needs. Essentially, it emphasizes that plant tissues develop as a result of cells actively synthesizing and depositing substances within themselves, leading to the formation of organs such as leaves, stems, and roots. This theory highlights the dynamic, living nature of plant growth and structural development, underlining the role of cell activity rather than solely external factors.