Dataset Information

Effect of Ultraviolet C Irradiation on Isoflavone Concentrations in Different Cultivars of Soybean (Glycine max).

ABSTRACT: Phytoestrogens are naturally occurring plant polyphenolic compounds present in high concentrations in soybean products. Phytoestrogens are divided into three classes: lignans, isoflavones, and coumestans. Nine types of glycoside isoflavones and three types of aglycoside isoflavones are reported in soybean. Soy isoflavones can reduce the risk of a certain type of cancer, cardiovascular problems, osteoporosis, and menopausal symptoms. We irradiated the leaves of five cultivars of soybean with UV-C (260 nm) and determined the effect on concentrations of isoflavone compounds using liquid chromatography-mass spectrometry (LC-MS). Isoflavone concentrations were significantly higher following irradiation, particularly in the cultivar Daepung, which was selected as the best cultivar for high isoflavone induction with UV-C irradiation. Further experimentation with the cultivar Daepung revealed that 20 min UV-C irradiation was the best treatment for the induction of aglycone compounds, and 5 min with the dorsal surface facing the UV-C irradiation source was the best treatment for the induction of glycoside isoflavone compounds.

SUBMITTER: Karki KB

PROVIDER: S-EPMC7464170 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Effect of Ultraviolet C Irradiation on Isoflavone Concentrations in Different Cultivars of Soybean (<i>Glycine max</i>).

Karki Krishna Bahadur KB Mishra Awdhesh Kumar AK Choi Seong-Jin SJ Baek Kwang-Hyun KH

Plants (Basel, Switzerland) 20200816 8

Phytoestrogens are naturally occurring plant polyphenolic compounds present in high concentrations in soybean products. Phytoestrogens are divided into three classes: lignans, isoflavones, and coumestans. Nine types of glycoside isoflavones and three types of aglycoside isoflavones are reported in soybean. Soy isoflavones can reduce the risk of a certain type of cancer, cardiovascular problems, osteoporosis, and menopausal symptoms. We irradiated the leaves of five cultivars of soybean with UV-C ...[more]

PMID: 32824390

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Project description:The NAC gene family is notable due to its large size, as well as its relevance in crop cultivation - particularly in terms of enhancing stress tolerance of plants. These plant-specific proteins contain NAC domain(s) that are named after Petunia NAM and Arabidopsis ATAF1/2 and CUC2 transcription factors based on the consensus sequence they have. Despite the knowledge available regarding NAC protein function, an extensive study on the possible use of GmNACs in developing soybean cultivars with superior drought tolerance is yet to be done.In response to this, our study was carried out, mainly through means of phylogenetic analysis (rice and Arabidopsis NAC genes served as seeding sequences). Through this, 139?GmNAC genes were identified and later grouped into 17 clusters. Furthermore, real-time quantitative PCR was carried out on drought-stressed and unstressed leaf tissues of both sensitive (B217 and H228) and tolerant (Jindou 74 and 78) cultivars. This was done to analyze the gene expression of 28 dehydration-responsive GmNAC genes. Upon completing the analysis, it was found that GmNAC gene expression is actually dependent on genotype. Eight of the 28 selected genes (GmNAC004, GmNAC021, GmNAC065, GmNAC066, GmNAC073, GmNAC082, GmNAC083 and GmNAC087) were discovered to have high expression levels in the drought-resistant soybean varieties tested. This holds true for both extreme and standard drought conditions. Alternatively, the drought-sensitive cultivars exhibited lower GmNAC expression levels in comparison to their tolerant counterparts.The study allowed for the identification of eight GmNAC genes that could be focused upon in future attempts to develop superior soybean varieties, particularly in terms of drought resistance. This study revealed that there were more dehydration-responsive GmNAC genes as (GmNAC004, GmNAC005, GmNAC020 and GmNAC021) in addition to what were reported in earlier inquiries. It is important to note though, that discovering such notable genes is not the only goal of the study. It managed to put emphasis on the significance of further understanding the potential of soybean GmNAC genes, for the purpose of enhancing tolerance towards abiotic stress in general. This scientific inquiry has also revealed that cultivar genotypes tend to differ in their drought-induced gene expression.

Dataset Information

Effect of Ultraviolet C Irradiation on Isoflavone Concentrations in Different Cultivars of Soybean (Glycine max).

Publications

Effect of Ultraviolet C Irradiation on Isoflavone Concentrations in Different Cultivars of Soybean (<i>Glycine max</i>).

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