Phloem: Depending on its origin

Depending on its origin, phloem can be categorized into two types: Primary phloem and secondary phloem. Primary phloem arises from the procambium and includes protophloem and metaphloem. The term Phloem was introduced by C. Nageli (1858). The word " phloem " is extracted from the Greek, meaning " bark ". Phloem is the other complex tissue system in the plants. It is the food conducting tissues of the vascular plant. The materials (food), i.e. (towards the root and stem) can move in both directions because phloem transports food and water from leaves to all plant parts. All phloem cells are living except phloem fibres. The phloem is heterogeneous (complex tissues). It is a ... Introduction The vascular plant tissue, phloem , is responsible for distributing and transporting carbohydrates produced during photosynthesis. Phloem can be found in the stem’s vascular bundles, the abaxial region of every leaf’s venations, and the exterior section of the root cylinders because the plant is a continuous unit. As a fundamental tissue in the plant body, phloem functions extend from its primary process of transporting sugar to include transporting signalling molecules like ...