Question

In the embryo of Pinus, the rosette cells lie

• A. Above suspensor cells.
• B. Between suspensor and embryonal cells.
• C. Between Primary and secondary suspensor cells.
• D. Between embryonal and apical cells.

Answer 1

The correct option is A Above suspensor cells.

In proembryo, lower most tier is called as embryo tier. The cells next above this is called as suspensor tier or suspesor cells. These cells elongate considerably and form secondary suspensors, which push the developing embryo out of the archegonium into the tissues of the food ladden endosperm. The third tier from below is called as rosette tier.