Kranz anatomy consists of two morphologically and functionally distinct types of photosynthetic cells. They are the bundle sheath (bs) cells, which surround the vascular centres, and the mesophyll (mp) cells, which surround the bs cells beneath the leaf epidermis. Does vacular system of maize leaf midrib possess Kranz (or wreath) structure? Does the vascular in midribs also surrounded by bundle sheath cells and mesophyll cells?
Corn is a C4 plant, so therefore has the Kranz anatomy in its leaf structure.
THE MIDRIB OF CORN PLANT HAS VASCULAR BUNDLE . SINCE PHOTOSYNTHESIS TAKES PLACE IN MESOPHYLL AND BUNDLE SHEATH CELLS, I DO NOT THINK THAT MIDRIB CELLS ARE IMPORTANT FOR THIS PURPOSE.
Thank you Joy and Muayed.
We got sections of maize midrib. It seems that they do not prossess Kranz anatomy. Muayed said that midrib cells are not important for photosynthesis. That offers me a new idea. Maybe the Kranz anatomy disappears due to the function of leaf midrib. So I think Kranz anatomy do not 'dominate' the whole maize leaf structure.
According to my microscopic observation, the vasculars of the maize midrib have no Kranz structure. The vascular is like those in the stem. Not only in maize, the vascular bundles of the rice midrib are like those in the stem, and unlike those in lateral veins.Of course, Rice is not a Kranz type plant.