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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제16권 제9호
- 발행연도
- 2006.1
- 수록면
- 1,392 - 1,398 (7page)
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초록· 키워드
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We investigated a posible coordination betweenthe biosyntheses of two polyketides in the cereal head blightfungus Gibberella zeae, zearalenone (ZEA) and aurofusarin(AUR), which are catalyzed by the polyketide synthases(PKS) PKS4/PKS13 and PKS12, respectively. To determineif the production of one polyketide influences that of theother, we used four diferent transgenic strains of G. zeae;three were deficient for either ZEA or AUR or both, and onewild-type and PKS4 strain deficient for ZEA produced AURnormally, whereas the mycelia of both the PKS12 andPKS4::PKS12 strain showed no AUR acumulation. All theexamined deletion strains caused necrotic spots on the surfaceof corn kernels and were found to produce the nonpolyketidemycotoxins trichothecenes to the same amount as the wild-typestrain. In contrast, the AUR-deficient PKS12 strains producedgreater quantities of ZEA and its derivatives than the wild-the AUR-overproducing strain did not produce ZEA on eithermedium. Furthermore, the expression of both PKS4 and PKS13was induced earlier in the PKS12 strains than in the wild-typestrain, and there was no diference in the transcription ofPKS12 between the two strains. Therefore, these results indicatethat the ZEA biosynthetic pathway is negatively regulated bythe accumulation of another polyketide (AUR) in G. zeae.
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참고문헌 (22)
참고문헌 신청
Bowden, R. L / 1999 / Sexual recombination in Gibberella zeae / Phytopathology 89 : 182 ~ 188
Correll, J. C / 1987 / Nitrate non-utilizing mutants and their use in vegetative compatibility tests / Phytopathology 77 : 1640 ~ 1646
Dvorska, J. E / 2001 / Effect of the mycotoxin aurofusarin on the antioxidant composition and fatty acid profile of quail eggs / Brit. Poultry Sci. 42 : 643 ~ 649
Gaffoor, I / 2005 / Functional analysis of the polyketide synthase genes in the filamentous fungus Gibberella zeae (anamorph Fusarium graminearum) / Eukaryotic Cell 4 : 1926
J. E. Dvorska / 2004 / Protective Effect of Modified Glucomannans against Changes in Antioxidant Systems of Quail Egg and Embryo due to Aurofusarin Consumption / ASIAN-AUSTRA
Correll, J. C / 1987 / Nitrate non-utilizing mutants and their use in vegetative compatibility tests / Phytopathology 77 : 1640 ~ 1646
Dvorska, J. E / 2001 / Effect of the mycotoxin aurofusarin on the antioxidant composition and fatty acid profile of quail eggs / Brit. Poultry Sci. 42 : 643 ~ 649
Gaffoor, I / 2005 / Functional analysis of the polyketide synthase genes in the filamentous fungus Gibberella zeae (anamorph Fusarium graminearum) / Eukaryotic Cell 4 : 1926
J. E. Dvorska / 2004 / Protective Effect of Modified Glucomannans against Changes in Antioxidant Systems of Quail Egg and Embryo due to Aurofusarin Consumption / ASIAN-AUSTRA
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