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<p>At present, shells have been used to incubate <i>Pyropia haitanensis</i> (<i>P. haitanensis</i>) shell-boring conchocelis. To develop a more convenient substrate for <i>P. haitanensis</i> conchocelis cultivation, a novel <i>P. haitanensis</i> shell-boring conchocelis culture substrate (CaCO<sub>3</sub>/LPE/CA) was developed from calcite, low-density polyethylene, and calcium alginate. The mechanical properties and stability of CaCO<sub>3</sub>/LPE/CA, including implanting density (ID) and Yield per unit area, were tested. The results showed that the CaCO<sub>3</sub>/LPE/CA met practical <i>P. haitanensis</i> shell-boring conchocelis breeding application requirements. <i>P. haitanensis</i> was successfully cultured on CaCO<sub>3</sub>/LPE/CA, and its life cycle was observed through biomicroscopy and scanning electron microscopy (SEM). After conchospores was succrssfully reseased from <i>P. haitanensis</i> conchosporangial branch, the movement and germination of conchospores were also observed. The yield of conchospores per unit area of optimized CaCO<sub>3</sub>/LPE/CA reached 369.6 × 10<sup>3</sup> conchospores/cm<sup>2</sup>, making it a suitable candidate for <i>P. haitanensis</i> shell-boring conchocelis cultivation. Overall, CaCO<sub>3</sub>/LPE/CA exhibits great potential as a marine bioactive material, and the process and cost of <i>P. haitanensis</i> culture breeding could be simplified due to its comprehensive characteristics.</p>

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A Novel CaCO3/LPE/CA for Breeding Pyropia Haitanensis Artificial Shell-Boring Conchocelis

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • Jionghua Xiang,
  • Qiming Wu,
  • Kai Xu,
  • Qun Liu,
  • Yusen Nie,
  • Wuyin Weng,
  • Yucang Zhang,
  • Haiqi Wang

摘要

At present, shells have been used to incubate Pyropia haitanensis (P. haitanensis) shell-boring conchocelis. To develop a more convenient substrate for P. haitanensis conchocelis cultivation, a novel P. haitanensis shell-boring conchocelis culture substrate (CaCO3/LPE/CA) was developed from calcite, low-density polyethylene, and calcium alginate. The mechanical properties and stability of CaCO3/LPE/CA, including implanting density (ID) and Yield per unit area, were tested. The results showed that the CaCO3/LPE/CA met practical P. haitanensis shell-boring conchocelis breeding application requirements. P. haitanensis was successfully cultured on CaCO3/LPE/CA, and its life cycle was observed through biomicroscopy and scanning electron microscopy (SEM). After conchospores was succrssfully reseased from P. haitanensis conchosporangial branch, the movement and germination of conchospores were also observed. The yield of conchospores per unit area of optimized CaCO3/LPE/CA reached 369.6 × 103 conchospores/cm2, making it a suitable candidate for P. haitanensis shell-boring conchocelis cultivation. Overall, CaCO3/LPE/CA exhibits great potential as a marine bioactive material, and the process and cost of P. haitanensis culture breeding could be simplified due to its comprehensive characteristics.