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Aims <p>Drought is a major abiotic stressor that causes agricultural losses worldwide. Potato, the largest vegetable crop, is particularly susceptible to water deficit. This study aimed to explore the potential of beneficial microbes—<i>Bacillus</i> sp. and <i>Glomus</i> sp.—as a promising natural solution to mitigate the detrimental effects of drought stress on potato.</p> Methods <p>We conducted a series of physiological, microscopic, and biochemical analyses to assess the impact of these microbes on potato leaf structure, redox balance, and cell wall organization.</p> Results <p>Our findings indicate that both microorganisms contribute to photosynthesis efficiency and promote the formation of chloroplasts and intercellular spaces, which facilitate gas exchange and improve water use efficiency. Additionally, these microbes increase potato&#xa0;proline content, protect cell membranes from damage, and downregulate antioxidant enzyme activity. This study also reveals microbe-specific changes in the cell wall structure under drought stress, with notable alterations in pectin methylation and the distribution of glycosylated extensins. All of these modifications were discussed in detail in terms of their contribution to improving cell wall integrity and stability under stress.</p> Conclusions <p>In conclusion, both microorganisms effectively mitigate the detrimental effects of drought on potato. This research offers valuable insight into alternative, sustainable agricultural practices aimed at enhancing crop resilience to environmental stressors such as drought, in line with global efforts toward environmentally friendly and feasible farming practices.</p>

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The ability of potato to counteract drought in cooperation with microbial allies – Glomus sp. and Bacillus sp.

  • 期刊论文

  • 发表日期：

    2026年4月16日

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  • Emilia Wilmowicz,
  • Agata Kućko,
  • Małgorzata Kapusta,
  • Marzena Popielarska-Konieczna,
  • Kalisa Bogati,
  • Magdalena Wolska,
  • Jacek Karwaszewski,
  • Aleksandra Burkowska-But,
  • Maciej Walczak

摘要

Aims

Drought is a major abiotic stressor that causes agricultural losses worldwide. Potato, the largest vegetable crop, is particularly susceptible to water deficit. This study aimed to explore the potential of beneficial microbes—Bacillus sp. and Glomus sp.—as a promising natural solution to mitigate the detrimental effects of drought stress on potato.

Methods

We conducted a series of physiological, microscopic, and biochemical analyses to assess the impact of these microbes on potato leaf structure, redox balance, and cell wall organization.

Results

Our findings indicate that both microorganisms contribute to photosynthesis efficiency and promote the formation of chloroplasts and intercellular spaces, which facilitate gas exchange and improve water use efficiency. Additionally, these microbes increase potato proline content, protect cell membranes from damage, and downregulate antioxidant enzyme activity. This study also reveals microbe-specific changes in the cell wall structure under drought stress, with notable alterations in pectin methylation and the distribution of glycosylated extensins. All of these modifications were discussed in detail in terms of their contribution to improving cell wall integrity and stability under stress.

Conclusions

In conclusion, both microorganisms effectively mitigate the detrimental effects of drought on potato. This research offers valuable insight into alternative, sustainable agricultural practices aimed at enhancing crop resilience to environmental stressors such as drought, in line with global efforts toward environmentally friendly and feasible farming practices.