1. Respiratory roots occur in plants growing in marshy areas whereas assimilatory roots occurs in plants growing in terrestrial and aquatic habitat and even in epiphytic plants.
2. Respiratory roots are non green
hence do not perform photosynthesis. Assimilatory roots are green and perform photosynthesis.
3. Respiratory roots are negatively geotropic . Assimilatory roots are diageotropic ,which means they tend to grow horizontal to the line of gravity .They may be plagio-geotropic which means they tend to grow at an angle oblique angle to the line of gravity.
4. Respiratory roots have covering of cork whereas assimilatory roots lack the covering of cork.
5.Respiratory roots have lenticels for gaseous exchange. Assimilatory roots lack lenticels. The gaseous exchange occurs through the general surface of roots.
6. Respiratory roots are modifications of tap root system whereas assimilatory roots are a type of adventitious roots.
By: Ashwani Kumar,
Biology teacher,Phagwara .
2. Respiratory roots are non green
hence do not perform photosynthesis. Assimilatory roots are green and perform photosynthesis.
3. Respiratory roots are negatively geotropic . Assimilatory roots are diageotropic ,which means they tend to grow horizontal to the line of gravity .They may be plagio-geotropic which means they tend to grow at an angle oblique angle to the line of gravity.
4. Respiratory roots have covering of cork whereas assimilatory roots lack the covering of cork.
5.Respiratory roots have lenticels for gaseous exchange. Assimilatory roots lack lenticels. The gaseous exchange occurs through the general surface of roots.
6. Respiratory roots are modifications of tap root system whereas assimilatory roots are a type of adventitious roots.
By: Ashwani Kumar,
Biology teacher,Phagwara .
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