Understanding the effect of amino acids based biostimulant by an enantiomeric analysis of their active principles and a proteomic profiling approach

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Title: Understanding the effect of amino acids based biostimulant by an enantiomeric analysis of their active principles and a proteomic profiling approach
Authors: Sierras, Núria | Botta-Català, Anna | Staasing, L. | Martínez Esteso, María José | Bru-Martinez, Roque
Research Group/s: Proteómica y Genómica Funcional de Plantas
Center, Department or Service: Universidad de Alicante. Departamento de Agroquímica y Bioquímica | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef"
Keywords: Plant biostimulants | Chemical hydrolysis | Enzymatic hydrolysis | DIGE | Proteomics | Wheat
Knowledge Area: Bioquímica y Biología Molecular
Issue Date: 2016
Publisher: International Society for Horticultural Science (ISHS)
Citation: Acta Horticulturae. 2016, 1148(11): 93-100. doi:10.17660/ActaHortic.2016.1148.11
Abstract: Plant biostimulants are products that contain multiple compounds and claim to activate a wide range of plant responses. Amino acid based products are one example of biostimulants with a complex composition and different product characteristics depending on their sources and production processes. Amino acid biostimulants are obtained mainly by chemical or enzymatic protein hydrolysis and the type of hydrolysis determine the content of free amino acids and their enantiomeric purity. While L-amino acids are biologically active, the application of D-amino acids has even shown deleterious. With the aim to highlight different quality compositions of amino acid biostimulants a comprehensive chiral analysis of different types of hydrolyzed protein biostimulants was performed. Results confirmed the high purity in L-amino acids in products obtained by enzymatic hydrolysis as well as a high racemization rate for those obtained through a chemical hydrolysis. Furthermore the application of the commercial biostimulant Terra-Sorb® Foliar with L-amino acids shows multiple agronomic effects such as the improvement of the photosynthetic process and the enhancement of crop tolerance to stress. A proteomic approach in wheat plants was undertaken in order to understand which molecular mechanisms are involved in the stimulating effect of the product. The improvement of wheat productivity seems to be mediated by a combination of an enhanced CO2 fixation, a more active protein metabolism and a decrease of oxidative stress.
URI: http://hdl.handle.net/10045/66095
ISSN: 0567-7572 (Print) | 2406-6168 (Online)
DOI: 10.17660/ActaHortic.2016.1148.11
Language: eng
Type: info:eu-repo/semantics/article
Rights: © International Society for Horticultural Science
Peer Review: si
Publisher version: http://dx.doi.org/10.17660/ActaHortic.2016.1148.11
Appears in Collections:INV - Proteómica y Genómica Funcional de Plantas - Artículos de Revistas

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