Phenolic content variability and its chromosome location in tritordeum

Abstract

For humans, wheat is the most important source of calories, but it is also a source of antioxidant compounds that are involved in the prevention of chronic disease. Among the antioxidant compounds, phenolic acids have great potential to improve human health. In this paper we evaluate the effect of environmental and genetic factors on the phenolics content in the grain of a collection of tritordeums with different cytoplasm and chromosome substitutions. To this purpose, tritordeum flour was used for extraction of the free, conjugates and bound phenolic compounds. These phenolic compounds were identified and quantified by RP-HPLC and the results were analyzed by univariate and multivariate methods. This is the first study that describes the composition of phenolic acids of the amphiploid tritordeum. As in wheat, the predominant phenolic compound is ferulic acid. In tritordeum there is great variability for the content of phenolic compounds and the main factor which determines its content is the genotype followed by the environment, in this case included in the year factor. Phenolic acid content is associated with the substitution of chromosome DS1D(1Hch) and DS2D(2Hch), and the translocation 1RS/1BL in tritordeum. The results show that there is high potential for further improving the quality and quantity of phenolics in tritordeum because this amphiploid shows high variability for the content of phenolic compounds.

Transcriptomic dynamics in soybean near-isogenic lines differing in alleles for an aphid resistance gene, following infestation by soybean aphid biotype 2

“…A total of 24 significant GO terms were identified in the three groups. Functional analysis of GO terms indicates that soybean responses to aphid infestation agree with current understanding in mechanisms of plant defense in various hosts – aphid systems [26, 29, 36, 37]. Carbohydrate metabolic process (GO:0005975) and oxidation reduction (GO:0055114) were most highly enriched in the common DEGs significant in both compatible and incompatible interaction of the present study (Table 2).…”

Transcriptome sequencing and marker development in winged bean (Psophocarpus tetragonolobus; Leguminosae)

“…Our overall distribution of transcription factors in winged bean within the known TF families is similar to that in soybean and other legume species, with bZIP, MYB, TCP, and WRKY highly represented 28 39 . The TF family most highly-represented in our data was the bZIP family, which includes regulators of many central developmental and physiological processes and abiotic and biotic stress responses 40 41 . In addition, elevated levels of expression were also found for TCPs and MYB: TCPs have been characterized in other plant species for their role in growth, development, and sex determination 42 43 , whereas the MYB family has been implicated in regulation of disease resistance and water loss regulation via stomatal movement 44 .…”

Evaluation of Phenolic Content Variability along with Antioxidant, Antimicrobial, and Cytotoxic Potential of Selected Traditional Medicinal Plants from India

“…could prevent oxidation reactions which may help in restoring the quality of food products (Wojcik et al, 2010 ). The antioxidant activity of medicinal plants is generally studied with respect to total phenolic compounds and their free radical scavenging assays as they may be responsible for various bioactivities (Farhat et al, 2013 ; Navas-Lopez et al, 2014 ; Iqbal et al, 2015 ).…”