Some strains of S marcescens are capable of producing a pigment called prodigiosin, which ranges in color from dark red to pale pink, depending on the age of the colonies.
Vascular Tissue: the xylem and phloem in leaves are confined to vascular bundles or veins. Veins are surrounded by a layer of cells call the bundle sheath. The bundle sheath can be composed of parenchyma, colenchyma, or fibers.
Xylem tissue carries water and nutrients from the roots to the leaves. Phloem tissue carries sugar from the leaves to other cells of the plants. Non vascular plants are plants that lack tissues that transport water, nutrients, and sugar. Some example of non vascular plants are mosses, liverworts, and hornworts.hloem tissue carries sugar from the leaves to other cells of the plants. Non vascular plants are plants that lack tissues that transport water, nutrients, and sugar. Some example of non vascular plants are mosses, liverworts, and hornworts.