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.
Vascular tissue Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the â¦ xylem and phloem. These two tissues transport fluid and nutrients internally. Vascular tissue is used to transport nutrients from the base of the plant to throughout the organism.     That's the gist of it.     Here's how it works:  â¦    First off, plants don't move like animals. For example, humans can pick up their nutrients (food/water, etc.) with their hands.