correlation of atp citrate lyase and acetyl coa levels with trichothecene production in fusarium graminearum
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ID: 204502
2013
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Abstract
The correlation of ATP citrate lyase (ACL) and acetyl CoA levels with trichothecene production in Fusarium graminearum was investigated using an inhibitor (precocene II) and an enhancer (cobalt chloride) of trichothecene production by changing carbon sources in liquid medium. When precocene II (30 µM) was added to inhibit trichothecene production in a trichothecene high-production medium containing sucrose, ACL expression was reduced and ACL mRNA level as well as acetyl CoA amount in the fungal cells were reduced to the levels observed in a trichothecene trace-production medium containing glucose or fructose. The ACL mRNA level was greatly increased by addition of cobalt chloride in the trichothecene high-production medium, but not in the trichothecene trace-production medium. Levels were reduced to those level in the trichothecene trace-production medium by addition of precocene II (300 µM) together with cobalt chloride. These results suggest that ACL expression is activated in the presence of sucrose and that acetyl CoA produced by the increased ALC level may be used for trichothecene production in the fungus. These findings also suggest that sucrose is important for the action of cobalt chloride in activating trichothecene production and that precocene II may affect a step down-stream of the target of cobalt chloride.
| Reference Key |
sakamoto2013toxinscorrelation
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|---|---|
| Authors | ;Naoko Sakamoto;Rie Tsuyuki;Tomoya Yoshinari;Jermnak Usuma;Tomohiro Furukawa;Hiromichi Nagasawa;Shohei Sakuda |
| Journal | matec web of conferences |
| Year | 2013 |
| DOI |
10.3390/toxins5112258
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| URL | |
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