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.
Protective, transparent, outer layer that gives the leaf its shape: 3: Elongated, slender cells containing most of the leaf's chlorophyll where most photosynthesis takes palce: 4: Rigid cells that protect the vascular tissue and provide for vascular regrowth: 5: Vascular tissue that transports water and dissolved nutrients throughout the leaf: 6