Question

1. how does kranz anatomy leads to c4 photosynthesis?

Answer 1

Meaning of the word Kranz is “wreath” or “ring”. Kranz anatomy is a specialized structure in C₄ plants in which the mesophyll cells are clustered around the bundle-sheath cells in a ring-like fashion.

Importantly, the number of chloroplasts in the bundle-sheath cells is more than that in the mesophyll cells. This kind of anatomy is found in C₄ grasses such as maize and a few dicotyledons. The Kranz anatomy is developed in three different steps:

• Initiation of procambium

• Specification of bundle sheath and mesophyll cells

• development of chloroplast and integration of the C₄ cycle