Читать книгу Pacific Seaweeds - Louis Druehl - Страница 20

Оглавление

Pacific Seaweeds


20



Figure 6. The animal-like life cycle of Fucus (rockweed). The macroscopic plant (A) develops special cells that produce sperm (D) and eggs (H) in pits (conceptacles) (C) located on its branch tips (recep-tacles) (B). Meiosis (reduction cell division) occurs in these special cells, producing eggs (I–K) and sperm (E–G). The sperm is attracted to the released egg, with which it fuses (K). The resultant zygote (L) develops into the macroscopic sexual plant (M, N).

A

B

C

G

D

E

F

H

I

J

K

L

M

N



syngamy

meiosis

Pacific Seaweeds

Подняться наверх