Leaf modification

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1. Leaf Modification By Nazrin Parveen

2. Types of Leaf Modification Modification means a structural change due to functional needs. I ntroduction Leaf Tendrils Leaf Spines Phyllodes

3. Leaf Tendril When a leaf is modified into a thin, thread-like wiry coiled structure it is called as a leaf Tendril. E.g.. wild pea and Glory Lily.

4. Leaf Spine When a leaf is modified into pointed spines for defensive purpose. It is called as a Leaf Spine. E.g. Berberis and Prickly Poppy.

5. Phyllodes When the petiole becomes flattened and green. It reduces the process of evaporation from the plant body. Such structures are called Phyllodes . E.g. Australian Acacia.

6. Insectivorous Plants Plants which trap and digest insects for their protein requirement are called insectivorous plants. Pitcher Plant- The leaf is modified into a pitcher to trap insects. Bladderwort- The leaves are highly segmented and modified into sacs called bladders. Venus Flytrap- When any insect is caught by the leaf, the edges of the leaf interlock which prevents the escape of the insect.

7. Insectivorous Plants Pitcher Plant Bladderwort Venus flytrap

8. References Mineral nutrition of higher plants, (second edition (1995)) .Horst Marschner . Institute of Plant Nutrition. University of Honheim . Germany. Morphology of Angiosperms (1987) by John Merle Coulter, Ph.D. Head of Department of Botany; Charles Joseph Chamberlain, Ph.D. Instructor in Botany, The university of Chicago. Leaf modifications (biology discussion). Retrieved from http:// www.biologydiscussion.com/plants/modifications-of-leaves-explained-with-diagram/6249