The central lumens are obliterated in

Which xylem element have highly thickened walls and obliterated central lumen?

Which xylem element have highly thickned walls and obliterated central lumen?

Which xylem element have highly thickned walls and obliterated central lumen?

Xylem fibres posses obliterated central lumen due to very thick walls. This helps to perform the function of

Xylem fibres posses obliterated central lumen due to very thick walls. This helps to perform the function of

In order to avoid overlapping of interference frings and their obliteration (destruction) the slit width must be

Assertion :- Xylem fibres have highly thickened walls and continous central lumen. Reason :- Xylem fibre's wall show lignin deposition and there is no septation and deposition in their lumen face.

Decrease in the lumen of arteries is called