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
- 2012.8
- 수록면
- 572 - 581 (10page)
이용수
초록· 키워드
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In this study, we compared growth pattern, floc yield, Exo-polysaccharides (EPS) production, Poly-β-hydroxybutyrate (PHB) accumulation, resistance to osmotic and acid stress in Methylobacterium strains CBMB20, CBMB27, CBMB35, and CBMB110. Modified high C:N ratio medium denoted as HCN-AMS medium was used with a C:N ratio of 30:1. The HCN-AMS medium favored increased growth in all the studied strains. All Methylobacterium strains tested positive for EPS production and showed positive fluorescence with calcoflour stain. Elevated levels of EPS production from 4.2 to 75.0% was observed in HCN-AMS medium. Accumulation of PHB in HCN-AMS medium increased by 3.8, 36.7, and 12.0% in strains CBMB27, CBMB35, and CBMB110 respectively. Among the abiotic stresses, osmotic stress-induced growth inhibition of Methylobacterium strains was found to be lowered when grown in HCN-AMS medium. Likewise, growth inhibition due to acid stress at pH 5.0 was lower for strains grown in HCN-AMS medium compared to growth in AMS medium. Enhanced survivability under stress conditions may be attributed to the high EPS and PHB production at increased carbon concentration in the growth medium.
목차
Introduction
Materials and Methods
Qualitative/ Quantitative assay for EPS production
Qualitative/Quantitative assay for PHB production
Results
Stress endurance efficiency under different created stress conditions
DISCUSSION
Conclusion
References
참고문헌 (43)
참고문헌 신청
1. [학술지(정기간행물)] - Alami, Y. / 2000 / Rhizosphere soil aggregation and plant growth promotion of sunflowers by an exopolysaccharide-producing Rhizobium sp. strain isolated from sunflower roots / Appl. Environ. Microbiol 66 : 3393 ~ 3398
2. [학술지(정기간행물)] - Alvarez, M.I. / 1996 / Effect of Azospirillum inoculation on coleoptile growth in wheat seedlings under water stress / Cereal Res. Commun 24 : 101 ~ 107
3. [학술지(정기간행물)] - Ayub Akbari / 2004 / Detection of chronic kidney disease with laboratory reporting of estimated glomerular filtration rate and an educational program / Arch. Intern. Med 164 (16) : 1788 ~ 1792
4. [학술지(정기간행물)] - Bahat-Samet, E. / 2004 / Arabinose content of extracellular polysaccharide plays a role in cell aggregation of Azospirrilum brasilense / FEMS Microbial. Lett 237 : 195 ~ 203
5. [학술지(정기간행물)] - Bashan, Y. / 1997 / Azospirillum - plant relationships: environment and physiological advances / Can. J. Microbiol 43 : 103 ~ 121
2. [학술지(정기간행물)] - Alvarez, M.I. / 1996 / Effect of Azospirillum inoculation on coleoptile growth in wheat seedlings under water stress / Cereal Res. Commun 24 : 101 ~ 107
3. [학술지(정기간행물)] - Ayub Akbari / 2004 / Detection of chronic kidney disease with laboratory reporting of estimated glomerular filtration rate and an educational program / Arch. Intern. Med 164 (16) : 1788 ~ 1792
4. [학술지(정기간행물)] - Bahat-Samet, E. / 2004 / Arabinose content of extracellular polysaccharide plays a role in cell aggregation of Azospirrilum brasilense / FEMS Microbial. Lett 237 : 195 ~ 203
5. [학술지(정기간행물)] - Bashan, Y. / 1997 / Azospirillum - plant relationships: environment and physiological advances / Can. J. Microbiol 43 : 103 ~ 121
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UCI(KEPA) : I410-ECN-0101-2014-521-000807473