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Updated: Feb 8, 2026

Sexual Development and Ascospore Discharge in Fusarium graminearum
Published on: March 29, 2012
The Use of Colors as an Alternative to Size in Fusarium graminearum Growth Studies
Edgar Cambaza1,2, Shigenobu Koseki3, Shuso Kawamura4
1Laboratory of Food Process Engineering, Graduate School of Agriculture, Hokkaido University, Sapporo 060-0808, Hokkaido, Japan. edy@bpe.agr.hokudai.ac.jp.
Abstract:
Size-based fungal growth studies have limitations. For example, the growth in size stops in closed systems once it reaches the borders and poorly describes metabolic status, especially in the stationary phase. This might lead mycotoxin studies to unrealistic results. Color change could be a viable alternative, as pigments result from a mold’s metabolic activity. This study aimed to verify the possibility of using gray values and the RGB system to analyze the growth of Fusarium graminearum. It consisted of color and area measurements using ImageJ software for specimens grown in yeast extract agar (YEA). The results suggest the utility of color and gray values as reliable tools to analyze the growth of F. graminearum.
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