TEM of embryo of turnip

TEM of embryo of turnip

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Caption: False-colour transmission electron micrograph of a dissected embryo of the turnip, Brassica campestris, removed from the ovule 3 days after pollination. The embryo develops from a fertilised egg called a zygote. At 3 days it consists of a 6/7-celled suspensor (stalk) & a 16-celled small globular tip called the proembryo. The micrograph shows a section through the first cell of the suspensor & six cells from the proembryo. The proembryo will develop into the shoot & seed leaves (cotyledons) & the first cell of the suspensor into the root. Fragments around the embryo are remnants of endosperm tissue. Magnific- ation: x520 at 35mm size, x825 at 6x4.5cm size. Reference: MICROCOSMOS, figure 4.39, page 85.

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Keywords: botanical science, botany, brassica campestris, electron micrograph, embryo, embryo development, of plant, plant, plant structure, proembryo, seed, suspensor, tem, transmission, turnip

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