Xylems are compound non-living conducting tissues. They conduct water and dissolved salts from roots to different parts of plants. Xylem also forms wood in plants. It supports the plant body. xylem tissues are present only in tracheophytes.


The genetic recombination in which bacteria absorbs naked DNA is called transformation. Transformation is the genetic alteration of a cell resulting from the introduction, uptake, and expression of foreign genetic material (DNA or RNA).

Structure of Root

Roots are important to the plant in a variety of means: they provide stability, nutrients, as well as function as the key resource of water and nutrient absorption. In general, the root consists of all parts of the plant that lie under the soil, despite the fact that a lot of the tissues of the plant, including the vascular tissues, are continual throughout the root and shoot.