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Differentiation between root apex and shoot apex

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Shoot Apex

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⇒ Primordia of the branches develop in the axils of leaves in the REGION of

apex.

⇒ Branches arise exogenously.

⇒ Plastochrons or periodic cyclic changes occur on the flanks of the shoot

apex.

⇒ Shoot apex changes its activity during reproductive phase.

⇒ The organization of shoot apex can be explained on the basis of tunica

CORPUS theory.

⇒ Demarcation of the different regions of the meristem and its DERIVATIVES is

not elaborate.


Root Apex

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⇒ Primordia of branches develop far behind the root apex.

⇒ Branches develop endogenously.

⇒ They are not distinguishable in the root apex.

⇒ No change occurs during reproductive phase.

⇒ The organisation of root apex can be explained on the basis of HISTOGEN

theory.

⇒ There is a high degree of differentiation in the meristem and its derivatives.




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