지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.8
- 수록면
- 401 - 408 (8page)
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초록· 키워드
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The present study described the isolation of 2-methylbutyric acid (2-MBA) produced from Bacillus pumilus L1, to subsequently investigate its nematicidal activity for the control of the root-knot nematode. The results showed that 2-MBA could be purified by chromatographic techniques and was identified using nuclear magnetic resonance and liquid chromatography-mass spectrometry. Crude extract and partially purified compounds had a significant effect on the inhibition of egg hatchability and second-stage juvenile (J2) mortality. A dose-dependent effect of 2-MBA was observed for J2 mortality and egg hatchability. Egg hatchability was 69.2%, 59.9%, 32.7%, and 0.0% at 125, 250, 500, and 1000 μg mL<SUP>-1</SUP> of 2-MBA after 4 d of incubation, respectively. Meanwhile, J2 mortality was in the range of 24.4%-100.0% after 2 d of incubation, depending on the concentrations of 2-MBA used. A pot experiment also demonstrated that treatment of B. pumilus L1 culture caused a significant reduction in the number of galls, egg masses, and J2 population than that of the tap water (TW) control. However, as the B. pumilus L1 culture concentration was decreased, the efficacy of nematode control by treatment of B. pumilus L1 culture was reduced compared to that of TW. B. pumilus L1 inoculation at different concentrations also promoted cucumber plant growth. Therefore, our study demonstrated the potential of 2-MBA from B. pumilus L1 as a biocontrol agent against the root-knot nematode and a plant growth promoter for cucumber plants.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (39)
참고문헌 신청
[학술지(정기간행물)] - Abdel-Rahman, F.H. / 2008 / Natural organic compounds as alternative to methyl bromide for nematodes control / J. Environ. Sci. Health B 43 : 680 ~ 685
[학술지(정기간행물)] - Adekunle, O.K. / 2007 / Nematicidal effects of Leucaena leucocephala and Gliricidia sepium extracts on Meloidogyne incognita infecting okra / J. Agric. Sci 52 : 53 ~ 63
[학술지(정기간행물)] - Ahmadian, G. / 2007 / Bacillus pumilus SG2 isolated from saline conditions produces and secretes two chitinases / J. Appl. Microbiol 103 : 1081 ~ 1089
[학술지(정기간행물)] - Akbulut, N. / 2013 / Improved activity and thermostability of Bacillus pumilus lipase by directed evolution / J. Biotechnol 164 : 123 ~ 129
[학술지(정기간행물)] - Akhtar, M.S. / 2008 / Glomus intraradices, Pseudomonas alcaligenes, and Bacillus pumilus: effective agents for the control of root-rot disease complex of chickpea (Cicer arietinum L.) / J. Gen. Plant Pathol 74 : 53 ~ 60
[학술지(정기간행물)] - Adekunle, O.K. / 2007 / Nematicidal effects of Leucaena leucocephala and Gliricidia sepium extracts on Meloidogyne incognita infecting okra / J. Agric. Sci 52 : 53 ~ 63
[학술지(정기간행물)] - Ahmadian, G. / 2007 / Bacillus pumilus SG2 isolated from saline conditions produces and secretes two chitinases / J. Appl. Microbiol 103 : 1081 ~ 1089
[학술지(정기간행물)] - Akbulut, N. / 2013 / Improved activity and thermostability of Bacillus pumilus lipase by directed evolution / J. Biotechnol 164 : 123 ~ 129
[학술지(정기간행물)] - Akhtar, M.S. / 2008 / Glomus intraradices, Pseudomonas alcaligenes, and Bacillus pumilus: effective agents for the control of root-rot disease complex of chickpea (Cicer arietinum L.) / J. Gen. Plant Pathol 74 : 53 ~ 60
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UCI(KEPA) : I410-ECN-0101-2017-523-001137261