FORESTRY
PLANT AND WOOD ANATOMY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stem endodermis
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Root endodermis
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Pericycle
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Outer cortex
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Detailed explanation-1: -Casparian strips are the ring-like call wall modifications found in the root of the endodermis of vascular plants. It acts as a barrier to harmful chemicals like herbicides. So it is found in the walls of endodermal cells. Endoderm forms the central and innermost layer of cortex in terrestrial plants.
Detailed explanation-2: -Casparian strip is a band of cell wall material deposited on the radial and transverse walls of the endodermis and is chemically different from the rest of the cell wall. The cell wall being made of lignin and without suberin, whereas the Casparian strip is made of suberin and sometimes lignin.
Detailed explanation-3: -The Casparian strip is a band-like thickening in the center of the root endodermis (radial and tangential walls of endodermal cells) of vascular plants (Pteridophytes and Spermatophytes).