Q.Which of the two phenomena are considered as inherent capacities of living plant cell ?

Every living plant cell inherently possesses totipotency and the capacity for differentiation.

Plant cells, unlike most animal cells, retain a remarkable degree of developmental flexibility throughout their life, and two related capacities are considered fundamental and inherent to any living plant cell.

The first is totipotency -- the genetic capacity of a single plant cell, even one that is already mature and fully differentiated (such as a leaf, stem, or root cell), to give rise to a complete new plant, genetically identical to the parent, when it is placed under appropriate conditions (such as in tissue culture, on a suitable nutrient medium with the correct balance of plant growth hormones). This property arises because every living plant cell retains a complete copy of the genome and, in principle, all the genetic information needed to form any cell type or the entire organism. Totipotency is the theoretical basis of the entire field of plant tissue culture, including micropropagation and somatic embryogenesis.

…