Scholarlink

<p>The application of microalgae as biofertilizers has gained attention due to their nutrient-rich composition and potential to promote sustainable agriculture. This study investigates the effects of <i>Chlorella</i> biomass and its residual waste—specifically lipid- and water-extracted microalgal biomass (LWEMB)—on the health of lettuce (<i>Lactuca sativa</i>) seedlings in a greenhouse-based experiment. While <i>Chlorella</i> biomass is known for enhancing plant growth, the reuse of LWEMB, a byproduct of bioactive compound extraction, remains underexplored. In this work, lettuce seedlings were treated with <i>Chlorella</i> biomass or LWEMB, and their growth responses were assessed through physiological parameters, biochemical properties, and rhizosphere microbial dynamics over a 25-day period. Results indicated that <i>Chlorella</i> biomass significantly improved root development by 34.41% and increased chlorophyll content by 39.05%, supporting its potential as an effective biofertilizer. LWEMB treatment, although less effective in promoting growth, significantly influenced microbial composition by increasing the relative abundance of Cyanobacteria (particularly unclassified <i>Cyanobacteriales</i>) and the fungal genus <i>Trichoderma</i>. These microbes are associated with nitrogen fixation and biocontrol activities, respectively, suggesting potential benefits for soil health and microbial diversity. These findings demonstrate the dual utility of <i>Chlorella</i> biomass and its extraction residues, highlighting their respective roles in enhancing plant performance and supporting soil microbial ecosystems in sustainable crop production systems.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative evaluation of Chlorella biomass and its lipid-extracted residue: impacts on lettuce growth performance and rhizosphere microbial community

  • 期刊论文

  • 发表日期：

    2025年9月4日

查看全文
  • Antira Wichaphian,
  • Apiwit Kamngoen,
  • Wageeporn Maneechote,
  • Wasu Pathom-aree,
  • Tawanchai Khuendee,
  • Yupa Chromkaew,
  • Piroonporn Srimongkol,
  • Benjamas Cheirsilp,
  • Shuhao Huo,
  • John Chi-Wei Lan,
  • Kuan Shiong Khoo,
  • Sirasit Srinuanpan

摘要

The application of microalgae as biofertilizers has gained attention due to their nutrient-rich composition and potential to promote sustainable agriculture. This study investigates the effects of Chlorella biomass and its residual waste—specifically lipid- and water-extracted microalgal biomass (LWEMB)—on the health of lettuce (Lactuca sativa) seedlings in a greenhouse-based experiment. While Chlorella biomass is known for enhancing plant growth, the reuse of LWEMB, a byproduct of bioactive compound extraction, remains underexplored. In this work, lettuce seedlings were treated with Chlorella biomass or LWEMB, and their growth responses were assessed through physiological parameters, biochemical properties, and rhizosphere microbial dynamics over a 25-day period. Results indicated that Chlorella biomass significantly improved root development by 34.41% and increased chlorophyll content by 39.05%, supporting its potential as an effective biofertilizer. LWEMB treatment, although less effective in promoting growth, significantly influenced microbial composition by increasing the relative abundance of Cyanobacteria (particularly unclassified Cyanobacteriales) and the fungal genus Trichoderma. These microbes are associated with nitrogen fixation and biocontrol activities, respectively, suggesting potential benefits for soil health and microbial diversity. These findings demonstrate the dual utility of Chlorella biomass and its extraction residues, highlighting their respective roles in enhancing plant performance and supporting soil microbial ecosystems in sustainable crop production systems.

Graphical abstract