• Title/Summary/Keyword: Plant resources

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Agronomic Characteristics of Alisma plantago as Affected by Transplanting Dates of in Southern Parts of Korea

  • Shin, Dong-Young;Lim, June-Taeg;Hyun, Kyu-Hwan;Kwon, Byung-Sun
    • Korean Journal of Plant Resources
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    • v.21 no.3
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    • pp.192-195
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    • 2008
  • This study was conducted to find out some important agronomic characteristics and qualities in response to different transplanting dates in Alisma plantago at southern parts of Korea. Yield components such as number of floral axis per plant, plant height and number of leaves were highest at the transplanting date of Aug. 15 and Aug. 25. Plants sown at Aug. 15 and Aug. 25 also showed highest yield. Considering from our results, optimum transplanting date were semed to be transplanting date of Aug. 15 and Aug. 25.

A new distribution record of Sedum kiangnanense (Crassulaceae) in Korea

  • SUH, Hwa-Jung;KIM, Jung-Hyun;CHOI, Ji-Eun;LEE, Wunggi;KIM, Jin-Seok;KIM, Sangtae
    • Korean Journal of Plant Taxonomy
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    • v.50 no.2
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    • pp.247-251
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    • 2020
  • We report a new distribution of Sedum kiangnanense D. Q. Wang & Z. F. Wu on the Korean Peninsula. This species was first reported in China and is distributed in Anhui and Zhejiang provinces. We found this species on Hongdo Island in Heuksan-myeon, Shinan-gun, Jeollanam-do in the Republic of Korea. S. kiangnanense is well distinguished from other species in Korea by 4- or 5-verticillate leaves on the sterile stems and a spatulate leaf shape. We provide its morphological description, detailed illustrations, and a key to related taxa. We have given this species a new Korean name, Ip-kkot-dol-na-mul, which means flower-like leaved sedum.

Immunostimulatory Activity of Hibiscus manihot Flower in Mouse Macrophages, RAW264.7 Cells

  • Geum, Na Gyeong;Yu, Ju Hyeong;Yeo, Joo Ho;Choi, Min Yeong;Park, Gwang Hun;Hong, Se Chul;Jeong, Jin Boo
    • Korean Journal of Plant Resources
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    • v.34 no.6
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    • pp.536-541
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    • 2021
  • In this study, we investigated whether Hibiscus manihot flowers (HMF) exhibits immunostimulatory activity in RAW264.7 cells. HMF increased the production of immunostimulatory factors such as NO, iNOS, IL-1β and TNF-α in RAW264.7 cells. TLR2 and TLR4 blocked HMF-mediated production of immunostimulatory factors in RAW264.7 cells. In addition, the inhibition of MAPK signaling pathway reduced HMF-mediated production of immunostimulatory factors. From these results, HMF is thought to promote the production of immunostimulatory factors through activating TLR2/4/MAPK signaling in macrophages. It is believed that HMF can be developed as an agent related to immune enhancement in the future.