Tylosis involves resinous chemicals blocking this tissue type to slow infection.
Tylosis involves resinous chemicals blocking this tissue type to slow infection. Minerals entering this tissue must first cross the endodermal Casparian strip, and this tissue has secondary wall thickenings that can be annular, helical, reticulate, scalariform, or pitted. Both this tissue and ground tissue must be embedded with lignin to function properly. Transpirational pull allows fluid to move through this tissue, whose secondary form makes up the heartwood of trees. Tracheids [TRAY-kee-idz] and vessel elements make up what vascular plant tissue responsible for transporting water, unlike the phloem?
Tylosis involves resinous chemicals blocking this tissue type to slow infection.
xylem [prompt on vascular tissue before "vascular"]