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Entwicklung von Sphaeroplea annulina (Chlorophyta)

Formal Metadata

Title
Entwicklung von Sphaeroplea annulina (Chlorophyta)
Alternative Title
Development of Sphaeroplea annulina (Chlorophyta)
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureC 1213
Publisher
Release Date1976
LanguageGerman
Producer
Production Year1974

Technical Metadata

IWF Technical DataFilm, 16 mm, LT, 97 m ; F, 9 min

Content Metadata

Subject Area
Genre
Abstract
German
German
Die vegetative Vermehrung wird beim Eintreten von Stickstoffmangel von der sexuellen Reproduktion abgelöst. Umwandlung der vielkernigen Zellen in Antheridien und Oogonien, Entstehung der Spermatozoiden und Eier. Chemotaktische Anlockung der männlichen Gameten, deren Eindringen in die Oogonien, Eibefruchtung, Entwicklung der kugeligen Hypnozygoten. Zygotenkeimung, Auswachsen der zunächst zweigeißligen Zoosporen zu Fäden.
English
English
Under conditions of limiting oxygen vegetative reproduction stops and is replaced by sexual reproduction. Metamorphosis of multinucleate cells by antheridia and oogonia. Production of spermatozoids and eggs. Chemotatic attraction of the male gametes, their penetration into the oogonia, fertilization, development of spherical hypnozygotes, zygote germination, growth of the initially bicillate zoospores to threads.
Keywords
German
German
English
English
IWF Classification
German
German
English
English