Toxins 2013, 5(11), 2258-2269; doi:10.3390/toxins5112258
Article

Correlation of ATP Citrate Lyase and Acetyl CoA Levels with Trichothecene Production in Fusarium graminearum

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Received: 1 November 2013; in revised form: 18 November 2013 / Accepted: 18 November 2013 / Published: 21 November 2013
(This article belongs to the Special Issue Recent Advances and Perspectives in Deoxynivalenol Research)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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.
Keywords: ATP citrate lyase; precocene II; acetyl CoA; trichothecene production; cobalt chloride; sucrose; Fusarium graminearum
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MDPI and ACS Style

Sakamoto, N.; Tsuyuki, R.; Yoshinari, T.; Usuma, J.; Furukawa, T.; Nagasawa, H.; Sakuda, S. Correlation of ATP Citrate Lyase and Acetyl CoA Levels with Trichothecene Production in Fusarium graminearum. Toxins 2013, 5, 2258-2269.

AMA Style

Sakamoto N, Tsuyuki R, Yoshinari T, Usuma J, Furukawa T, Nagasawa H, Sakuda S. Correlation of ATP Citrate Lyase and Acetyl CoA Levels with Trichothecene Production in Fusarium graminearum. Toxins. 2013; 5(11):2258-2269.

Chicago/Turabian Style

Sakamoto, Naoko; Tsuyuki, Rie; Yoshinari, Tomoya; Usuma, Jermnak; Furukawa, Tomohiro; Nagasawa, Hiromichi; Sakuda, Shohei. 2013. "Correlation of ATP Citrate Lyase and Acetyl CoA Levels with Trichothecene Production in Fusarium graminearum." Toxins 5, no. 11: 2258-2269.

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