Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism
The influence of vegetal extracts derived from red grape, blueberry fruits and hawthorn leaves on Zea mays L. plant growth and the activity of phenylalanine ammonia-lyase (PAL), a key enzyme of the phenylpropanoid pathway, was investigated in laboratory experiments. The extracts were characterized u...
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doaj-907dd1f16d2f49b390ba6c9eccb072ac2020-11-24T20:46:03ZengMDPI AGMolecules1420-30492016-02-0121220510.3390/molecules21020205molecules21020205Biological Activity of Vegetal Extracts Containing Phenols on Plant MetabolismAndrea Ertani0Diego Pizzeghello1Ornella Francioso2Anna Tinti3Serenella Nardi4Dipartimento di Agronomia, Animali, Alimenti, Risorse Naturali e Ambiente (DAFNAE), Università di Padova, Viale dell’Università 16, 35020 Legnaro (Padova), ItalyDipartimento di Agronomia, Animali, Alimenti, Risorse Naturali e Ambiente (DAFNAE), Università di Padova, Viale dell’Università 16, 35020 Legnaro (Padova), ItalyDipartimento di Scienze Agrarie, Università di Bologna, Viale Fanin 44, 40127 Bologna, ItalyDipartimento di Scienze Biomediche e Neuromotorie, Università di Bologna, Via Belmeloro 8/2, 40126 Bologna, ItalyDipartimento di Agronomia, Animali, Alimenti, Risorse Naturali e Ambiente (DAFNAE), Università di Padova, Viale dell’Università 16, 35020 Legnaro (Padova), ItalyThe influence of vegetal extracts derived from red grape, blueberry fruits and hawthorn leaves on Zea mays L. plant growth and the activity of phenylalanine ammonia-lyase (PAL), a key enzyme of the phenylpropanoid pathway, was investigated in laboratory experiments. The extracts were characterized using FT-IR and Raman spectroscopies in order to obtain a pattern of the main functional groups. In addition, phenols content was determined by HPLC, whereas the content of indoleacetic acid and isopentenyladenosine hormones was determined by ELISA test and the auxin and gibberellin-like activities by plant-bioassays. The treated maize revealed increased root and leaf biomass, chlorophyll and sugars content with respect to untreated plants. Hawthorn, red grape skin and blueberry at 1.0 mL/L induced high p-coumaric content values, whilst hawthorn also showed high amounts of gallic and p-hydroxybenzoic acids. PAL activity induced by hawthorn at 1.0 mL/L had the highest values (11.1-fold UNT) and was strongly and linearly related with the sum of leaf phenols. Our results suggest that these vegetal extracts contain more than one group of plant-promoting substances.http://www.mdpi.com/1420-3049/21/2/205vegetal extractbiostimulantmaizehormonephenolic acidphenylpropanoid |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Andrea Ertani Diego Pizzeghello Ornella Francioso Anna Tinti Serenella Nardi |
spellingShingle |
Andrea Ertani Diego Pizzeghello Ornella Francioso Anna Tinti Serenella Nardi Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism Molecules vegetal extract biostimulant maize hormone phenolic acid phenylpropanoid |
author_facet |
Andrea Ertani Diego Pizzeghello Ornella Francioso Anna Tinti Serenella Nardi |
author_sort |
Andrea Ertani |
title |
Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism |
title_short |
Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism |
title_full |
Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism |
title_fullStr |
Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism |
title_full_unstemmed |
Biological Activity of Vegetal Extracts Containing Phenols on Plant Metabolism |
title_sort |
biological activity of vegetal extracts containing phenols on plant metabolism |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2016-02-01 |
description |
The influence of vegetal extracts derived from red grape, blueberry fruits and hawthorn leaves on Zea mays L. plant growth and the activity of phenylalanine ammonia-lyase (PAL), a key enzyme of the phenylpropanoid pathway, was investigated in laboratory experiments. The extracts were characterized using FT-IR and Raman spectroscopies in order to obtain a pattern of the main functional groups. In addition, phenols content was determined by HPLC, whereas the content of indoleacetic acid and isopentenyladenosine hormones was determined by ELISA test and the auxin and gibberellin-like activities by plant-bioassays. The treated maize revealed increased root and leaf biomass, chlorophyll and sugars content with respect to untreated plants. Hawthorn, red grape skin and blueberry at 1.0 mL/L induced high p-coumaric content values, whilst hawthorn also showed high amounts of gallic and p-hydroxybenzoic acids. PAL activity induced by hawthorn at 1.0 mL/L had the highest values (11.1-fold UNT) and was strongly and linearly related with the sum of leaf phenols. Our results suggest that these vegetal extracts contain more than one group of plant-promoting substances. |
topic |
vegetal extract biostimulant maize hormone phenolic acid phenylpropanoid |
url |
http://www.mdpi.com/1420-3049/21/2/205 |
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