Describe in brief the shoot and root apical organization according to Histogen theory.

The Histogen theory, proposed by Carl Goebel in 1886, provides a framework for understanding the organization of the shoot and root apices in plants. According to this theory, the apical meristems of plants are organized into three distinct regions or histogens, each of which gives rise to specific tissues during growth. These histogens are categorized into the dermatogen, periblem, and plerome, and they are responsible for the development of the different layers and structures within the shoot and root systems.

In the shoot apex, the histogen organization is as follows:

1. ______ ________ __________ ________ _______.
   _______ ____ ___ _________ _______ ________ _____.
   ______ _______ ____ _______ _________ __________ _______ _______ ____ _____.
   ________ __________ ___ _____ _______ _________ _________ _______ ___.
   __________ ____ _________ ____ _______ ______ ____ _______.
   _____ _______ ___ ________ _____ __________ ____ __________ ________ _________ __________ ____.
   __________ ___ _______ _________ __________ ___ _______ _______ __________ ____ _________ __________.
   _______ _________ ______ ______ ___ ________ _______ __________ _____ _________.
   ____ __________ ___ _____ _________ ______ _____.
   ____ ____ _____ _________ __________.
   _____ ______ ___ ____ ___ ____ _____.
   __________ _______ _____ ___ ____ _________ _______ ________.
   _______ ____ __________ __________ _______.
   _______ _____ _____ ______ ________.
   __________ _____ ______ _______ _______ ________ ____ ___ ______ __________ _______ ___.
   _______ ________ ________ _____ ____ _____ ____ ____ __________ _________.
   ________ ___ __________ _____ ___ _______ _________ _____ __________ ______ _____ ___.
   __________ __________ ______ ______ ________ _____ _________ ____ _____ ____ _____.
   ___ _________ ___ _______ ___ ___ _____ _______ ______.
   _________ ____ __________ ___ ______ _______ ____ __________.
   ________ __________ _____ __________ _______ ______ _________ ________ __________.
   _______ _________ ______ _______ _______ _________ __________ ___.
   ____ __________ _________ ______ _________ __________.
   _______ ____ ______ ______ ___ ____ _________ ________ _______ _________.
   ___ ____ _______ ___ _______ _________ ___ ________.
   _____ ____ ______ ________ _______ ___ _________ ___.
   _______ ____ ______ ___ _____ _______ ______ ________.
   __________ _____ ___ _____ ____ _____ _____.
   _________ ____ _________ ____ ________ ____ ____ ____.
   _______ _______ _________ __________ _______.
   ________ _____ _____ _____ ______.
   ________ ____ _______ ________ _______ ______ ______.
   ___ _____ _____ _______ ________ ________ _____.
   ________ _____ _______ ____ _________ _____ ___ ________ __________.
   _______ ______ _______ ________ ______.
   _____ _____ _____ _________ ________ _____ __________ ______ _______ _____ ______ _________.
   ____ _______ _______ ___ __________ ____ __________ ______.
   __________ _______ ______ ____ ______ ___ _______ ___ ______.
   _____ _______ ____ ____ ____ _________ _______.
   ___ ________ ____ _______ _____ _______ _______ ______ _________ ___ _________.
   _______ ________ _________ ____ _________.
   ____ ______ _________ ____ ____ ______ _____ ________ __________.
   _________ ___ ____ ____ _____.
   __________ _______ __________ ____ _______ _____ ______ ________ ___.
   _______ _________ ____ ____ _____.
   ____ _____ _______ _________ _____ _______ ___.
   ___ _____ ___ __________ ______ __________ ____ _________.
   __________ __________ ___ ______ _________ _______ ____.
   ________ ______ _______ _____ ____ __________ __________ ___ __________ ______ ________.
   ________ ________ ________ ______ __________ __________ _________ ___.
   ____ _______ _________ ______ ___ __________ ______ ______ _______.
   _______ _____ _______ _____ ___.
   ________ __________ _____ ______ _______.
   _______ _________ _____ _________ ___ _______ _______ __________ _____ _____.
   ____ ________ ___ __________ ___ ________ ________ _______ _________.
   ________ _________ ____ ____ _______ ________ ________.
   ___ _________ _______ _______ _________ _______ ______ ______ _________ _________ _____ ________.
   ________ ____ _______ ______.
   Get Full Answer on WhatsApp