The balloon-shaped structures called tyloses
originate in the lumen of vessels
characterize the sapwood
are extensions of xylem parenchyma cells into vessles
are linked to the ascent of sap through xylem vessels
As learnt in
Tyloses -
Bladder like ingrowth of parenchyma cells into lumen of vessels
- wherein
Tylose blocks the conduction of water. In gymnosperms, tylosoids are formed in place of tyloses.
Option 1)
originate in the lumen of vessels
Incorrect option
Option 2)
characterize the sapwood
Incorrect option
Option 3)
are extensions of xylem parenchyma cells into vessles
correct option
Option 4)
are linked to the ascent of sap through xylem vessels
Incorrect option