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30. Evaluation of Agronomic Traits, Total Phenolic Content, and Antioxidant Properties of Sesame Seeds of Different Colors and Origin.

Author

Osei, Collins Yeboah, Lee, Sookyeong, Lee, Gi-An, Lee, Sae Hyun, Yoo, Eunae, Lee, Jae-Eun, Kim, Eun-Gyeong, and Yang, Tae-Jin

Subjects
PRINCIPAL components analysis, SESAME, RADICALS (Chemistry), CHRONIC diseases, SEEDS, STATISTICS
Abstract

Rising health concerns regarding chronic diseases call for exploring natural sources of antioxidants and factors that influence their activity. This study evaluated the diversity of 112 sesame germplasms from Africa and Asia based on ten agronomic traits (seven quantitative and three qualitative), two antioxidant activities (ABTS and DPPH radical scavenging activities), and the content of one metabolite (TPC). TPC, DPPH, and ABTS were in the ranges of 4.98–87.88 µg GAE/mg DE, 3.97–46.23 µg AAE/mg DE, and 3.42–176.01 µg TE/mg DE, respectively. Statistical analyses revealed significant variations in agronomic traits, TPC, and antioxidant activities among the sesame germplasms (p < 0.05). Furthermore, the individual and interaction effects of seed color and the continent of origin on the levels of the quantitative traits, TPC, ABTS, and DPPH were analyzed, and the correlation among the traits was further evaluated. Diversity in TPC, ABTS, and DPPH was significantly associated with seed color and most of the quantitative agronomic traits (p < 0.05) but not with continent of origin. Principal component analysis revealed TPC, ABTS, DPPH, and five quantitative traits as the most discriminant traits. In general, six sesame accessions with high TPC and antioxidant activities (IT194356, IT170094, IT29971, IT185998, IT104246, and IT169623) as well as important agronomic traits were identified and, hence, could be used for developing improved sesame varieties. [ABSTRACT FROM AUTHOR]

Published
2024
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36. Uncovering the differential molecular basis of adaptive diversity in three Echinochloa leaf transcriptomes.

Author

Nah, Gyoungju, Im, Ji-Hoon, Kim, Jin-Won, Park, Hae-Rim, Yook, Min-Jung, Yang, Tae-Jin, Fischer, Albert J, and Kim, Do-Soon

Subjects
Echinochloa, Plant Leaves, Plant Proteins, Herbicides, Adaptation, Physiological, Gene Expression Regulation, Plant, Molecular Sequence Data, Genetic Variation, Republic of Korea, Transcriptome, Adaptation, Physiological, Gene Expression Regulation, Plant, General Science & Technology
Abstract

Echinochloa is a major weed that grows almost everywhere in farmed land. This high prevalence results from its high adaptability to various water conditions, including upland and paddy fields, and its ability to grow in a wide range of climates, ranging from tropical to temperate regions. Three Echinochloa crus-galli accessions (EC-SNU1, EC-SNU2, and EC-SNU3) collected in Korea have shown diversity in their responses to flooding, with EC-SNU1 exhibiting the greatest growth among three accessions. In the search for molecular components underlying adaptive diversity among the three Echinochloa crus-galli accessions, we performed de novo assembly of leaf transcriptomes and investigated the pattern of differentially expressed genes (DEGs). Although the overall composition of the three leaf transcriptomes was well-conserved, the gene expression patterns of particular gene ontology (GO) categories were notably different among the three accessions. Under non-submergence growing conditions, five protein categories (serine/threonine kinase, leucine-rich repeat kinase, signaling-related, glycoprotein, and glycosidase) were significantly (FDR, q < 0.05) enriched in up-regulated DEGs from EC-SNU1. These up-regulated DEGs include major components of signal transduction pathways, such as receptor-like kinase (RLK) and calcium-dependent protein kinase (CDPK) genes, as well as previously known abiotic stress-responsive genes. Our results therefore suggest that diversified gene expression regulation of upstream signaling components conferred the molecular basis of adaptive diversity in Echinochloa crus-galli.

Published
2015

49. Improved biomass and metabolite production in hairy root culture in various genotypes of Panax ginseng through genetic transformation

Author

Van Binh, Nguyen, primary, Kim, Min Jung, additional, Giang, Vo Ngoc Linh, additional, Lee, Yun Sun, additional, Jayakodi, Murukarthick, additional, Park, Hyun-Seung, additional, Mohanan, Padmanaban, additional, Kang, Kyo Bin, additional, Ryu, Byeol, additional, Park, Eun Jin, additional, Park, Tae Kyu, additional, and Yang, Tae-Jin, additional

Published
2023
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