Prothallium

Übersetzung von "prothallium" ins Russisch

prothallium

Substantiv

/prəʊˈθeɪliəm/

/proʊˈθeɪliəm/

prothallium

prothallia Pl.

prothalliums Pl.

проталлий

The prothallium is a crucial stage in the life cycle of ferns.

Проталлий является важной стадией в жизненном цикле папоротников.

Definitionen

prothallium

Substantiv

/prəʊˈθeɪliəm/

/proʊˈθeɪliəm/

The gametophyte stage in the life cycle of ferns and other pteridophytes, typically a small, flat, green, heart-shaped structure that bears the reproductive organs.

The prothallium of the fern is crucial for the development of the gametes.

In gymnosperms and other seed plants, the tissue of the male gametophyte that remains within the pollen grain, often composed of one or more sterile cells.

In pine pollen, the prothallium stays inside the grain while the generative cell produces sperm nuclei.

Übersetzungen
Definitionen