Abstract

Phenolic acids are the major phenolic components reported in wheat. Based on their chemistry, they areclassifi ed as hydroxy derivati ves of either cinnamic or benzoic acid. The biogenesis of phenolic acids occursalong the general phenylpropanoid pathway, which is ubiquitously present in plant cell walls, leading tothe synthesis of secondary metabolites that are involved in plant defence and structural support. As a result,diff erent environmental factors, such as light, bioti c or abioti c stresses, can aff ect the content of phenolicacids in mature wheat grains. Besides being important for plant survival, phenolic acids also exhibitvarious biological acti viti es that are benefi cial for human health. Among these, the most acknowledged isthe anti oxidant acti vity, which can be associated to reduced risks of heart disease and colon cancer.Due to their signifi cance, phenolic acids have been investi gated as a potenti al target of breeding programs.The present contributi on reviews the progress in the comprehension of the geneti c and molecularbasis of phenolic acids biosynthesis in wheat. Also, the state of the art concerning the geneti c variati on ofindividual phenolic acids and total phenolic acids content in several wheat collecti ons is presented. Theupcoming literature on the inheritance of phenolic acids in bread and durum wheat, grown in diff erentenvironments, or under the eff ect of diverse bioti c stress (i.e. drought, heat stress) is presented and discussed.Finally, updates are given on the on-going genomic studies to identi fying QTL and genes that areinvolved in phenolic acids biosynthesis and accumulati on in mature wheat grains.

Autore Pugliese

• Laddomada Barbara

Tutti gli autori

• B. Laddomada

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Anno di pubblicazione

2018

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Settori ERC

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