Tag: adapting to a habit

Mangroves are marshy area found in tropical deltas and saline ponds near seashores. The area have not only excess salt but also excess water of anaerobic conditions besides difficulty in  anchoring and seed germination. Plants growing in mangroves are halophytes. Such forests are found in West Bengal in India. Mangroves of West Bengal are called Sunderbans.

Halophytes are plants of saline habitats, which have the ability to tolerate high salt content. They are able to obtain water supply inspite of high salt content in soil. They grow in saline soil, e.g., mangroves.

Halophytes grow in soil which is physiologically dry. The soil is having lots of salts, hence, halophyte plants have devised various adaptations to absorb water. A green halophytic alga Dunaliella, found in hypersaline lakes, accumulates glycerol in its cells to help in osmoregulation.

A number of halophyte plants possess small negatively geotropic vertical roots, called as pneumatophores. Pneumatophores have lenticels for gaseous exchange. They are connected with internal aerenchymatous tissue.

Rhizophora is a well-known genus of mangrove trees that grow in intertidal zones and are adapted to saline conditions.

A rhizophore is a specialized organ found in plants like Selaginella that acts as an intermediate structure, exhibiting characteristics of both roots and stems.

Halophiles are organisms that thrive in high salt concentrations. They are also called as salt-loving microorganisms. They are found in hypersaline environments like in arid, coastal, deep‐sea, underground salt mines. They can comfortably live in evaporation ponds or salt lakes such as Great Salt Lake, Owens Lake or Dead Sea. 

Plants that thrive in salty environments, such as sea shore wetlands, are classified as halophytes.

Mangroves possess various root adaptations to survive in waterlogged, anaerobic, and saline soils, including pneumatophores for gas exchange, and stilt/prop roots for structural support.

To maintain osmotic balance in saline environments, mangroves accumulate compatible solutes like proline and sorbitol to lower their internal water potential without toxic salt accumulation.