I found that in the endodermis, the tangential and radial walls have deposition of the waxy, and hence water-impermeable, material suberin in the form of casparian strips. The endodermis comes before the vascular bundle so how is water absorbed in roots?
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$\begingroup$ Read this (especially the function part): en.m.wikipedia.org/wiki/Endodermis $\endgroup$ – Kunal24 Aug 29 '15 at 10:29
The plants do have waxy walls and stuff, the plants use "Suction Method" to suck the water from the ground. Due to transpiration plants loose water from the top or aerial region of the plant and since water is absent in that region there is vacuum present so it sucks water from the ground. This is how plants absorb water.
[Reference--- https://en.wikipedia.org/wiki/Xylem ]
[Ref. Wiki Images and text part and cross check for better understanding]
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$\begingroup$ How will the water reach the vascular bundle for suction .Before the Vascular bundle it has to cross the endodermis layer . $\endgroup$ – Chloritone_360 Aug 29 '15 at 6:48
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1$\begingroup$ Welcome to Biology and thanks for the illustrated answer. It, however, does not answer the question. -1 $\endgroup$ – AliceD♦ Aug 29 '15 at 7:18