• Title/Summary/Keyword: horticultural plant

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Effects of Long-Term Subcultured Arbuscular Mycorrhizal Fungi on Red Pepper Plant Growth and Soil Glomalin Content

  • Selvakumar, Gopal;Yi, Pyoung Ho;Lee, Seong Eun;Shagol, Charlotte C.;Han, Seung Gab;Sa, Tongmin;Chung, Bong Nam
    • Mycobiology
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    • v.46 no.2
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    • pp.122-128
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    • 2018
  • Arbuscular mycorrhizal fungi (AMF) are well-known for their ability to improve plant growth and help plants withstand abiotic stress conditions. Unlike other fungi and bacteria, AMF cannot be stored, as they are obligate biotrophs. Long-term preservation of AMF spores is challenging and may lead to the loss of viability and efficiency. This study aimed to understand the effect of prolonged subculture of AMF species on the growth and glomalin-related soil protein (GRSP) from red pepper (Capsicum annuum L.). AMF spores were mass-produced using different techniques and subcultured in pots with sorghum sudangrass as the host plant for 3 years. Experimental soil samples were collected from natural grassland. Five different AMF inocula were used in triplicate as treatments. After 70 days of growth, red pepper plants were harvested and plant dry weight, plant nutrient content, mycorrhizal colonization, AMF spore count, and soil glomalin content were determined. AMF-treated plants displayed higher dry weight than controls, with only fruit dry weight being significantly different. Similarly, significant differences in phosphorous and potassium contents of the above-ground plant parts were observed between mycorrhizal and control treatments. In addition, soil GRSP content was significantly higher in plants inoculated with Rhizophagus sp. and Gigaspora margarita. The increased plant growth and GRSP content suggest that AMF can be maintained for 3 years without losing their efficiency if subcultured regularly with different symbiotic host plants.

Occurrence of viruses infecting pepper in Korea.

  • Park, Gug-Seoun;Kim, Jae-Hyun;Ryu, Ki-Hyun;Park, Jang-Kyung;Chae, Soo-Young;Kim, Hyun-Ran;Chung, Bong-Nam;Kim, Jeong-Soo;Park, Yong-Mun
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2002.11a
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    • pp.121.1-121
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    • 2002
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Inhibition Activity of Plants on IgE-mediated Degranulation of RBL-2H3 Cells

  • Lee, Seung-Eun;Jeong, Hye-Gwang;Lee, Dae-Young;Lee, Jeong-Hoon;Choi, Jehun;Kim, Geum-Soog;Noh, Hyung-Jun;Lee, Jae-Won;Kim, Seung-Yu;Ahn, Young-Sup
    • Korean Journal of Plant Resources
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    • v.28 no.6
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    • pp.718-726
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    • 2015
  • In this study, the inhibitory activities of fifty plant extracts on IgE-mediated degranulation in the rat basophilic leukemia cell line (RBL-2H3 cells) were measured; the release of interleukin (IL)-4 and β-hexosaminidase from IgE-sensitized cells treated with the plant extracts was measured; and the effects of the plant extracts on cell viability were tested. The results of the analysis of plant extracts at 20 μg/ml, including the aerial part of Magnolia sieboldii K. Koch, exhibited suppressive activities upon the release of IL-4. Furthermore, several plant extracts including methanol extracted from Lindera erythrocarpa Makino (aerial part) at the same concentration significantly inhibited the release of β-hexosaminidase. Twenty-six of the plant extracts, including methanol extract of Weigela subsessilis (Nakai) L. H. Bailey (branch), showed a cell proliferation effect of over 80% at 100 μg/ml. In conclusion, the results suggest that the leaf/stem of Geum japonicum Thunb. and the stamen/ovary of Nelumbo nucifera Gaertn., which exhibited effective inhibition on β-hexosaminidase release and IL-4 release from mast cells and showed high cell viability, could be useful candidates as anti-allergy materials.