PATHOLOGY

Detailed explanation-1: -The best characterized stem cell in the plant reside in the root apical meristem (RAM) and the shoot apical meristem (SAM), which called apical meristem, are responsible for plant longitudinal growth. These stem cells remain as pluripotent state throughout the lifespan of the plant.

Detailed explanation-2: -Stem cells – self-renewing cells responsible for the formation of multicellular organisms – are located in plants at the tips of shoots and roots in groups called meristems.

Detailed explanation-3: -Plant stem cells are innately undifferentiated cells present in the plant’s meristematic tissues.

Detailed explanation-4: -Some roots, called adventitious roots, arise from an organ other than the root-usually a stem, sometimes a leaf. They are especially numerous on underground stems, such as rhizomes, corms, and tubers, and make it possible to vegetatively propagate many plants from stem or leaf cuttings.

Detailed explanation-5: -Meristems that are found at the tips of roots and buds are called apical meristems, and these are the meristems that are responsible for primary growth in plants.