Preliminary Study on the Mechanism of Flower Color Variation in White Mutants of Anthurium andeaeanum

摘要

[Objectives] This study was conducted to explore the physiological mechanism of flower color variation in the white mutants of Anthurium andeaeanum .[Methods] The seven white mutants of ‘Alabama’ and ‘Turenza’ were used as materials to analyze the pigment types, flavonoid types and content and anthocyanin content in the wild type and mutants.[Results] The white spathe mainly contained flavonoids, flavonols, dihydroflavonols and dihydroflavonols;the white mutants of ‘Alabama’ had a higher total flavonoid content than the wild type, while the white mutants of ‘Turenza’ showed an opposite trend;and the spathe of the wild type had the highest anthocyanin content, and the pink part of the two-color mutant or the spathe of the binary color mutant contained trace anthocyanins, while no anthocyanins were detected in the white part of the mutants.[Conclusions] The main cause of the white mutants of A. andeaeanum is related to anthocyanin metabolism.