Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $O_{2}$, root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $\mathrm{O}_{2}$ required for root respiration?
Roots obtain oxygen from air in the soil for respiration. In the absence or deficiency of $O_{2}$, root growth is restricted or completely stopped. How do the plants growing in marsh lands or swamps obtain their $\mathrm{O}_{2}$ required for root respiration?
$\rightarrow$ Roots of plants in wet soil and at muddy place shows negative tropism. They develop in air above soil layer towards air and breathe through root. They are called breathing roots or pneumatophores e.g. Rhizofora.
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- [NEET 2018]
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A root grows in length, which region of the root is responsible for this growth?
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