• 제목/요약/키워드: Crop plant

검색결과 7,389건 처리시간 0.038초

IAA-Producing Penicillium sp. NICS01 Triggers Plant Growth and Suppresses Fusarium sp.-Induced Oxidative Stress in Sesame (Sesamum indicum L.)

  • Radhakrishnan, Ramalingam;Shim, Kang-Bo;Lee, Byeong-Won;Hwang, Chung-Dong;Pae, Suk-Bok;Park, Chang-Hwan;Kim, Sung-Up;Lee, Choon-Ki;Baek, In-Youl
    • Journal of Microbiology and Biotechnology
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    • 제23권6호
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    • pp.856-863
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    • 2013

  • Application of rhizospheric fungi is an effective and environmentally friendly method of improving plant growth and controlling many plant diseases. The current study was aimed to identify phytohormone-producing fungi from soil, to understand their roles in sesame plant growth, and to control Fusarium disease. Three predominant fungi (PNF1, PNF2, and PNF3) isolated from the rhizospheric soil of peanut plants were screened for their growth-promoting efficiency on sesame seedlings. Among these isolates, PNF2 significantly increased the shoot length and fresh weight of seedlings compared with controls. Analysis of the fungal culture filtrate showed a higher concentration of indole acetic acid in PNF2 than in the other isolates. PNF2 was identified as Penicillium sp. on the basis of phylogenetic analysis of ITS sequence similarity. The in vitro biocontrol activity of Penicillium sp. against Fusarium sp. was exhibited by a 49% inhibition of mycelial growth in a dual culture bioassay and by hyphal injuries as observed by scanning electron microscopy. In addition, greenhouse experiments revealed that Fusarium inhibited growth in sesame plants by damaging lipid membranes and reducing protein content. Co-cultivation with Penicillium sp. mitigated Fusarium-induced oxidative stress in sesame plants by limiting membrane lipid peroxidation, and by increasing the protein concentration, levels of antioxidants such as total polyphenols, and peroxidase and polyphenoloxidase activities. Thus, our findings suggest that Penicillium sp. is a potent plant growth-promoting fungus that has the ability to ameliorate damage caused by Fusarium infection in sesame cultivation.

  • https://doi.org/10.4014/jmb.1209.09045 인용 PDF KSCI

Differences in Productivity among Wheat, Barley and Rye for Forage

  • Kwon Byung-Sun
    • Plant Resources
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    • 제8권1호
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    • pp.9-12
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    • 2005

  • TO select the most suitable crop and variety of forage for productivity at the southern part of Korea, The crops of wheat, barley and rye were grown from Oct. 1999 to June 2000. Paldanghomil variety of rye crop was shown to have the highest productivity in comparison to other varieties of crops used in this experiment. It showed relatively high plant height, number of tiller, forage yield and dry matter yield. There fore, it was concluded that Paldanghomil of rye crop was the most suitable crop with high yield in the southern part of Korea. The heritabilities of all characters were estimated to be high.

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