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Int. J. Mol. Sci. 2013, 14(8), 16207-16225; doi:10.3390/ijms140816207
Article

Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Pseudomonads Increases Anthocyanin Concentration in Strawberry Fruits (Fragaria x ananassa var. Selva) in Conditions of Reduced Fertilization

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1 Department of Sciences and Innovative Technology, University of Piemonte Orientale, Viale T. Michel 11, Alessandria 15121, Italy 2 Mybasol srl, Via Gentilini, Alessandria 15121, Italy
* Author to whom correspondence should be addressed.
Received: 3 June 2013 / Revised: 19 July 2013 / Accepted: 25 July 2013 / Published: 6 August 2013
(This article belongs to the Special Issue Molecular Research in Plant Secondary Metabolism)
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Abstract

Anthocyanins are a group of common phenolic compounds in plants. They are mainly detected in flowers and fruits, are believed to play different important roles such as in the attraction of animals and seed dispersal, and also in the increase of the antioxidant response in tissues directly or indirectly affected by biotic or abiotic stress factors. As a major group of secondary metabolites in plants commonly consumed as food, they are of importance in both the food industry and human nutrition. It is known that arbuscular mycorrhizal (AM) fungi can influence the plant secondary metabolic pathways such as the synthesis of essential oils in aromatic plants, of secondary metabolites in roots, and increase flavonoid concentration. Plant Growth-Promoting Bacteria (PGPB) are able to increase plant growth, improving plant nutrition and supporting plant development under natural or stressed conditions. Various studies confirmed that a number of bacterial species living on and inside the root system are beneficial for plant growth, yield and crop quality. In this work it is shown that inoculation with AM fungi and/or with selected and tested Pseudomonas strains, under conditions of reduced fertilization, increases anthocyanin concentration in the fruits of strawberry.
Keywords: anthocyanin; high performance liquid chromatography (HPLC); arbuscular mycorrhizae; plant growth-promoting bacteria; low fertilization anthocyanin; high performance liquid chromatography (HPLC); arbuscular mycorrhizae; plant growth-promoting bacteria; low fertilization
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lingua, G.; Bona, E.; Manassero, P.; Marsano, F.; Todeschini, V.; Cantamessa, S.; Copetta, A.; D'Agostino, G.; Gamalero, E.; Berta, G. Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Pseudomonads Increases Anthocyanin Concentration in Strawberry Fruits (Fragaria x ananassa var. Selva) in Conditions of Reduced Fertilization. Int. J. Mol. Sci. 2013, 14, 16207-16225.

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