MODIFICATIONS OF ROOTS
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MODIFICATIONS OF ROOTS
STORAGE ROOTS
Roots modified to store food in them. e.g. Carrot, turnip, radish, sweet potato etc.
RESPIRATORY ROOTS
· Roots modified for respiration.
· The plants in mangroves or Saline Swampy areas suffer from the lack of oxygen have roots to obtain more oxygen.
· This is due to the water logged condition of the soil.
· So, some root branches grow vertically upwards.
· They become aerial and negatively geotropic.
· These roots bear many minute pores towards their upper ends. Gaseous exchange takes place through them.
· Majorly found in are found in Sundarbans of West Bengal.
PARASITIC ROOTS
· These roots arise from the stem and absorb nourishment from the host plant.
· The roots of parasitic plants penetrate into the host tissues and absorb nourishment. e.g. Cuscuta
CLIMBING ROOTS
· Roots which help the plant to climb and cling on to the support.
· e.g. Money plant, beetel.
MONEY PLANT, BEETEL LEAF PLANT
REPRODUCTIVE ROOTS
· Roots which help in the process of producing the offspring.
· e.g., Sweet potato, Dahlia etc.