지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제21권 제9호
- 발행연도
- 2011.1
- 수록면
- 893 - 902 (10page)
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초록· 키워드
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Endophytic fungi are little known for their role in gibberellins (GAs) synthesis and abiotic stress resistance in crop plants. We isolated 10 endophytes from the roots of field-grown soybean and screened their culture filtrates (CF) on the GAs biosynthesis mutant rice line - Waito-C. CF bioassay showed that endophyte GMH-1B significantly promoted the growth of Waito-C compared with controls.
GMH-1B was identified as Penicillium minioluteum LHL09on the basis of ITS regions rDNA sequence homology and phylogenetic analyses. GC/MS-SIM analysis of CF of P.
minioluteum revealed the presence of bioactive GA₄ and GA7. In endophyte-soybean plant interaction, P. minioluteum association significantly promoted growth characteristics (shoot length, shoot fresh and dry biomasses, chlorophyll content, and leaf area) and nitrogen assimilation, with and without sodium chloride (NaCl)-induced salinity (70 and 140 mM) stress, as compared with control. Field-emission scanning electron microcopy showed active colonization of endophyte with host plants before and after stress treatments. In response to salinity stress, low endogenous abscisic acid and high salicylic acid accumulation in endophyte-associated plants elucidated the stress mitigation by P. minioluteum. The endophytic fungal symbiosis of P. minioluteum also increased the daidzein and genistein contents in the soybean as compared with control plants,under salt stress. Thus, P. minioluteum ameliorated the adverse effects of abiotic salinity stress and rescued soybean plant growth by influencing biosynthesis of the plant’s hormones and flavonoids.
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참고문헌 (23)
참고문헌 신청
Ahmad, Nadeem / 2010 / Gibberellin-Producing Endophytic Fungi Isolated from Monochoria vaginalis / Journal of Microbiology and Biotechnology 20 (12) : 1744 ~ 1749
Alonso-Ramirez, A / 2009 / Evidence for a role of gibberellins in salicylic acid-modulated early plant responses to abiotic stress in Arabidopsis seeds / Plant Physiol 150 :
Aoki, T / 2000 / Flavonoids of leguminous plants: Structure, biological activity and biosynthesis / J. Plant Res 113 : 475 ~ 488
Arnold, A. E / 2007 / Diversity and phylogenetic affinities of foliar fungal endophytes in loblolly pine inferred by culturing and environmental PCR / Mycologia 99 : 185 ~ 20
Arnold, A. E / 2008 / Endophytic fungi: hidden components of tropical community ecology in Tropical Forest Community Ecology. / John Wiley & Sons, Oxford, UK : 254 ~ 271
Alonso-Ramirez, A / 2009 / Evidence for a role of gibberellins in salicylic acid-modulated early plant responses to abiotic stress in Arabidopsis seeds / Plant Physiol 150 :
Aoki, T / 2000 / Flavonoids of leguminous plants: Structure, biological activity and biosynthesis / J. Plant Res 113 : 475 ~ 488
Arnold, A. E / 2007 / Diversity and phylogenetic affinities of foliar fungal endophytes in loblolly pine inferred by culturing and environmental PCR / Mycologia 99 : 185 ~ 20
Arnold, A. E / 2008 / Endophytic fungi: hidden components of tropical community ecology in Tropical Forest Community Ecology. / John Wiley & Sons, Oxford, UK : 254 ~ 271
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