Zusammenfassung
Die Ausbildung von Blüten markiert bei den höheren Pflanzen die Umsteuerung von der vegetativen zur generativen Entwicklung, die Bildung von Blütenorganen anstelle von vegetativen Blattorganen, die schließlich zur Produktion von Nachkommen führt. Dieser Schritt wird in vielen Pflanzen durch bestimmte Umweltfaktoren angestoßen, z. B. durch die Tageslänge oder durch Kälteperioden, und damit in eine bestimmte Jahreszeit gelegt. Die Umsteuerung ist in der Regel irreversibel und setzt ein weitgehend von Umwelteinflüssen abgeschirmtes Programm genetisch gesteuerter Prozesse in Gang, das in den letzten Jahren mit Hilfe von Mutantenstudien in groben Zügen aufgeklärt werden konnte.
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Schopfer, P., Brennicke, A. (2010). Blütenbildung und Befruchtung. In: Pflanzenphysiologie. Springer Spektrum, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-49880-4_22
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