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Q.Describe in brief the morphological adaptations in Hydrophytes.
Uttar Pradesh UpmspUP Board (UPMSP) Intermediate 2020Subjective· 2mImportance★★★★★
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Start your 14-day free trial to unlock the full solution →Hydrophytes are adapted to water by reduced roots, air-filled spongy tissue (aerenchyma), thin cuticle, flexible stems and specially shaped leaves.
Concept. Hydrophytes are plants that grow wholly or partly in water; their morphology is modified to live in a medium that is abundant in water but poor in oxygen and mechanical support.
Morphological adaptations.
- Roots are poorly developed, reduced or absent (they mainly anchor; little absorption is needed).
- Stems are soft, flexible and weak (submerged forms) or float, since water gives support.
- Aerenchyma — large air spaces in the tissues provide buoyancy and store air for gaseous exchange.
- Cuticle is very thin or absent, allowing direct exchange of gases and water with the surrounding water. …
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