Can Anthocyanins be Part of the Metal Homeostasis Network in Plant? | Science Publications

American Journal of Agricultural and Biological Sciences

Marco Landi¹ 

关键词: Anthocyanins;    Flavonoids;    Metallo-Anthocyanins;    Metal Shortage;    Land Plants;    UV Waveband;   

DOI  :  10.3844/ajabssp.2015.170.177

学科分类：农业科学（综合）

来源: Science Publications

【 摘 要 】

Anthocyanins are a class of flavonoids with a high level ofdiversification and likely the most studied pathway of secondary metabolism in Plantae.Anthocyanins have raised a growing interest due to the huge variability oftheir chemical structures and the more new anthocyanins are isolated fromplants, the more questions on their evolutionary and ecological meaning theyraise. Antioxidant, photoprotection against high light and UV, defence againstherbivores and pathogens, attraction of pollinator are only some proposedbiological functions for those versatile compounds. Anthocyanins have also beenfound complexed with metal ions either in flower pigments (commelin andprotocyanin) or in leaves and stems. Due to the potentiality of anthocyanins tochelate to metals, their involvement in the attenuation of metal toxicity hasbeen recently proposed. Conversely, the ability of plants to remobilize metalions from stored metal-anthocyanin complexes when plants experience a period oftransient metal shortage has never been investigated before. The aim of this paperis to support the hypothesis that the anthocyanin-metal interactions mightrepresent a further ecological role for these pigments and also thatanthocyanins can be part of the complex network of metal homeostasis in plant.

【 授权许可】

Unknown