Some Differences from Plant Anatomy
DISTINGUISH BETWEEN Protoxylem Mexytaxylem 1.Protoxylem are the first or earlier formed xylem. 2.It matures before the growth and differentiation of plant organ. 3.Protoxylem elements are smaller in diameter. 4.Tyloses are absent in protoxylem vessel 5.Fibres are absent,rarely present. 6.Less compact and not very prominant 1.Metaxylem is the latter formed xylem. 2.It matures after the completion of the growth and differentiation of plant organ. 3.Metaxylem elements are broader and greater in diameter. 4.Tyloses generally blocked the metaxylem vessel. 5.Fibres may be present. 6.Comparatively more compact and prominant Tracheid Vessel /Tracheae 1.Tracheids are comparatively short. 2.Usually up to 1mm long 3