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논문 기본 정보

자료유형
학술저널
저자정보
Young Soo Kim (Andong National University) Balaraju Kotnala (Andong National University) Young Ho Kim (Seoul National University) Yongho Jeon (Andong National University)
저널정보
고려인삼학회 Journal of Ginseng Research Journal of Ginseng Research Vol.40 No.4
발행연도
2016.10
수록면
453 - 461 (9page)

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Background: This study aims to describe the characterization of Paenibacillus polymyxa GBR-1 (GBR-1) with respect to its positive and negative effects on plants.
Methods: The morphological characteristics of GBR-1 were identified with microscopy, and subjected to Biolog analysis for identification. Bacterial population and media optimization were determined by a growth curve. The potential for GBR-1 as a growth promoting agent, to have antagonistic activity, and to have hydrolytic activity at different temperatures was assessed. The coinoculation of GBR-1 with other microorganisms and its pathogenicity on various stored plants, including ginseng, were assessed.
Results: Colony morphology, endospore-bearing cells, and cell division of GBR-1 were identified by microscopy; identification was performed by utilizing the Biolog system, gas chromatography of fatty acid methyl esters (GC-FAME). GBR-1 showed the strongest antagonistic activity against fungal and bacterial pathogens. GBR-1 cell numbers were relatively higher when the cells were cultured in brain heart infusion (BHI) medium when compared with other media. Furthermore, the starch-hydrolytic activity was influenced by GBR-1 at higher temperature compared to low temperatures. GBR-1 was pathogenic to some of the storage plants. Coinoculation of GBR-1 with other pathogens causes differences in rotting on ginseng roots. A significant growth promotion was observed in tobacco seedlings treated with GBR-1 suspensions under in vitro conditions, suggesting that its volatile organic compounds (VOCs) might play a role in growth promotion.
Conclusion: The results of this study indicate that GBR-1 has both positive and negative effects on ginseng root and other stored plants as a potential biocontrol agent and eliciting in vitro growth promotion.
#antagonistic activity #bacterial morphology #ginseng root rot #growth promotion #Paenibacillus polymyxa GBR-1

목차

ABSTRACT
1. Introduction
2. Materials and methods
3. Results
4. Discussion
References

참고문헌 (33)

참고문헌 신청
[학술지(정기간행물)] - Ash C / 1993 / Molecular identification of rRNA group 3 bacilli (Ash, Farrow, Wallbanks and Collins) using a PCR probe test. Proposal for the creation of a new genus Paenibacillus / Antonie van Leeuwenhoek 64 : 253 ~ 260 google schola [학술지(정기간행물)] - Shishido M / 1996 / Effect of plant growth promoting Bacillus strains on pine and spruce seedling growth and mycorrhizal infection / Ann Bot 77 : 433 ~ 441 google schola [학술지(정기간행물)] - Dijksterhuis J / 1999 / Antibiosis plays a role in the context of direct interaction during antagonism of Paenibacillus polymyxa towards Fusarium oxysporum / J Appl Microbiol 86 : 13 ~ 21 google schola [학술지(정기간행물)] - Khan Z / 2008 / A plant growth promoting rhizobacterium, Paenibacillus polymyxa strain GBR-1, suppresses root-knot nematode / Bioresour Technol 99 : 3016 ~ 3023 google schola [단행본] - Timmusk S / 2003 / Mechanism of action of the plant growth promoting bacterium Paenibacillus polymyxa / Uppsala University : 1 ~ 28 google schola

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