Effect of growth substrates on morpho-quantitative and qualitative characteristics of <i>Echinacea angustifolia</i> var. <i>angustifolia</i> roots

Aiello, N.; Carlini, Alessandro; Scartezzini, Fabrizo; Fusani, Pietro; Berto, Chiara; Dall’Acqua, Stefano

doi:10.1080/10496475.2017.1370761

Cited by 1 publication

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“…The content of cynarin and dodeca-2E,4E,8Z,10E/Z-tetraenoic acid isobutylamide was more variable. The obtained data and the variability of the abundance of these compounds were in agreement with previous works on 1-year-old roots from E. angustifolia ; echinacoside was found in percentages ranging from 0.2 to 3.5%, 0.02–0.5% for cynarin, and 0.2–2.3% for dodeca-2E,4E,8Z,10E/Z-tetraenoic acid isobutylamide [ 8 , 12 , 16 , 18 ]. Similar results were obtained in samples harvested in different periods (e.g., 6 months, 3-year-old roots) [ 11 , 19 , 20 , 23 , 26 , 27 ].…”

Section: Discussionsupporting

confidence: 91%

“…Moreover, farming activity is not carried out intensively for this species, probably because the species shows some unfavorable characteristics, such as low germination rate, slow development and low root-weight yield, compared to E. pallida and E. simulata . A range of different in-vitro and in-vivo cultivation strategies have been investigated for this species [ 3 , 11 , 14 , 15 , 16 , 17 ]. However, it is important that the phytochemical variability of E. angustifolia plants is evaluated in order to potentially obtain accessions that produce the compounds of interest at high levels.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is important that the phytochemical variability of E. angustifolia plants is evaluated in order to potentially obtain accessions that produce the compounds of interest at high levels. Previous studies have been conducted on the chemical and morphological variation of E. angustifolia , on the basis of wild or cultivated accessions, the latitude of cultivation and the selected part of the plant [ 8 , 12 , 16 , 18 , 19 , 20 ]. As it was very important that the study was extended to a larger number of samples, the aim of this work is to analyze sixty-five accessions of E. angustifolia , collected from various sources such as a germplasm bank, botanical gardens, seed companies, and cultivated in the farm of the Research Centre for Forestry and Wood of the Council for Agricultural Research and Economics in Trento (Italy).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Farming Potential of Echinacea Angustifolia DC. Accessions Grown in Italy by Root-Marker Compound Content and Morphological Trait Analyses

Aiello

Marengo

Scartezzini

et al. 2020

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The Echinacea genus includes a number of species that are commercially employed for the preparation of herbal products. Echinacea angustifolia DC. is one of these and is widely used, mainly for its immunomodulating properties, as it contains a wide range of compounds that belong to different chemical classes. In particular, echinacoside, cynarin and lipophylic alkylamides are the main specialized metabolites of the roots and can be considered to be marker compounds. In this work, 65 E. angustifolia accessions have been compared in a field trial in Italy, with the aim of investigating the variability/stability of the weight and chemical composition of their roots in order to identify the accessions that are most promising for future genetic-improvement programs. The morphological characteristics of the aerial parts have also been investigated. Seventeen samples were discarded due to germination or plantlet-development issues. Seven of the remaining accessions were identified as being different Echinacea species after a combined phytochemical and morphological evaluation. The morphological traits of the epigeal part, the root weight and the chemical composition data of the 41 confirmed E. angustifolia accessions were submitted to multivariate statistical analysis and a moderately homogenous sample distribution, with low selected-marker variability, was observed. Good echinacoside content was detected in almost all roots (>0.5%). However, two groups of accessions stood out because of their interesting features: One group possessed small roots, but had a high concentration of marker compounds, while another had highly developed roots and a good amount of marker compounds. These accessions can therefore be exploited for future selection work.

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