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<p><i>Chimonobambusa utilis</i> is an advantageous bamboo species known for its edible shoots, which are celebrated as “the crown of bamboo shoots”. The coloration of bamboo sheaths is related to the color, flavor and nutritional components of bamboo shoots. However, the process of bamboo sheath coloration remains unexplored in scientific literature. Therefore, the pigment content and color difference values of the bamboo sheaths of five distinct cultivars of <i>Chimonobambusa utilis</i> (Keng) Keng f. -1, <i>Chimonobambusa utilis</i> (Keng) Keng f. -2, <i>Chimonobambusa utilis</i> (Keng) Keng f. -3, <i>Chimonobambusa utilis</i> (Keng) Keng f. -4, and <i>Chimonobambusa utilis</i> (Keng) Keng f. -5 (<i>C</i>1, <i>C</i>2, <i>C</i>3, <i>C</i>4, and <i>C</i>5) were measured in this study. According to the color difference values, <i>C</i>1 exhibits a color index of red leaf &lt; 2, while the remaining four cultivars fall within 2 &lt; color index of red leaf &lt; 4. Regarding pigment content, <i>C</i>1 demonstrated the highest chlorophyll levels, <i>C</i>4 contained the most anthocyanins, and <i>C</i>5 had significantly higher carotenoid content compared to the other four cultivars. A targeted metabolome assay revealed a total of 28 flavonoids in the bamboo sheaths, with 25, 27, 26, 25, and 25 flavonoids identified in the five <i>C</i>. <i>utilis</i>, respectively. Analysis of these flavonoids indicated substantial variations among the five cultivars’ bamboo sheaths. This study offers a reference point for the selection and breeding of distinctive bamboo shoots, as well as for understanding the coloration mechanism of the bamboo sheaths of <i>C. utilis</i>.</p>

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Metabolomic analysis of coloration mechanism of bamboo sheaths in different cultivars of Chimonobambusa utilis

  • 期刊论文

  • 发表日期：

    2026年2月4日

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  • Yan Lan,
  • Xiao Zhu,
  • Guang-Qian Gou,
  • Ai-Juan Tan,
  • Zhao-Xia Dai,
  • Shi-Ping Huang,
  • Gui-Li Yang

摘要

Chimonobambusa utilis is an advantageous bamboo species known for its edible shoots, which are celebrated as “the crown of bamboo shoots”. The coloration of bamboo sheaths is related to the color, flavor and nutritional components of bamboo shoots. However, the process of bamboo sheath coloration remains unexplored in scientific literature. Therefore, the pigment content and color difference values of the bamboo sheaths of five distinct cultivars of Chimonobambusa utilis (Keng) Keng f. -1, Chimonobambusa utilis (Keng) Keng f. -2, Chimonobambusa utilis (Keng) Keng f. -3, Chimonobambusa utilis (Keng) Keng f. -4, and Chimonobambusa utilis (Keng) Keng f. -5 (C1, C2, C3, C4, and C5) were measured in this study. According to the color difference values, C1 exhibits a color index of red leaf < 2, while the remaining four cultivars fall within 2 < color index of red leaf < 4. Regarding pigment content, C1 demonstrated the highest chlorophyll levels, C4 contained the most anthocyanins, and C5 had significantly higher carotenoid content compared to the other four cultivars. A targeted metabolome assay revealed a total of 28 flavonoids in the bamboo sheaths, with 25, 27, 26, 25, and 25 flavonoids identified in the five C. utilis, respectively. Analysis of these flavonoids indicated substantial variations among the five cultivars’ bamboo sheaths. This study offers a reference point for the selection and breeding of distinctive bamboo shoots, as well as for understanding the coloration mechanism of the bamboo sheaths of C. utilis.