Adaptation Of Plants In Different Habitats

Plant grow in differnt kinds of habitat(living area).In each habotat plant cells and tissue osmoregulate themselves for normal biological activites and survival.

A.    HABITATS AND PLANTS

        Few living areas (habitats) are discussed below:

        (i)   Hydrophytes are aquatic plants.

        (ii)  Plants grow in moderate condition are celled Mesophytes.

        (iii) Plants of dry soil are known as xerophytes.

B.    ADAPTATIONS

(i)    Adaptations Of Aquatic Plants (Hydrophytes):

• Large surface area of leaves and extensive stomata increase transpiration.
• This process of transpiration prevents turgidity of cell.
• No flooding takes place in cells because large leaves and so much stomata promote loss of water.

(ii)   Adaptations Of Mesophytes:

• Opening and closing of stomata become the reason of osmoregulation.
• In case of water shortage stomata remains close while in sufficient amount of water, stomata remains open. e.g. Rose, Mango, Brassica etc.

(iii)  Adaptations Of Xerophytes:

Reduced transpiration is necessity of xerophytes.Due to water shortage in habitat.they cannot afford loss of water.Xerophytes store water only in rainy season xerophytes have the following adaptation.

• Small and thick leaves to reduce water loss.
• They posses thick, waxy and leathery cuticle.
• Short number of stomata, generally on lower surface of leaves.
• Stems are photosynthetic.
• They store water in stems in rainy season and use in dry condition.