SECONDARY GROWTH IN DICOT ROOT
Cambium strips are formed by the activity of parenchymatous cells along the inner edges of primary phloem
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TYLOSES
Tylosis : Ingrowth of parenchymatous cells into xylem vessels and tracheids through pits due to enormous secondary growth.
ANATOMY OF DICOT AND MONOCOT STEM
CONJOINT: Xylem and phloem in the same radius.
•COLLATERAL: Phloem lies towards outer side and xylem towards inner side.
•ENDARCH: Metaxylem towards periphery protoxylem towards centre
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VASCULAR BUNDLE TYPES
CONJOINT: Xylem and phloem in the same radius.
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ANATOMY OF DICOT AND MONOCOT ROOTS
AMPHIVASAL : Phloem lies in the centre xylem surrounds it.
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PLANT COMPLEX TISSUE——– PHLOEM
Sieve plates and sieve areas:Group of pores present in the walls of sieve elements are called sieve areas & portion of cross wall possessing sieve areas is called sieve plates.In sieve cells sieve areas are located in the lateral walls where as in sieve tube elements they are located in end walls.
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