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American Focus > Blog > Tech and Science > A bacteria-based Band-Aid helps plants heal their wounds
Tech and Science

A bacteria-based Band-Aid helps plants heal their wounds

Last updated: February 13, 2025 3:39 am
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A bacteria-based Band-Aid helps plants heal their wounds
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A groundbreaking study has revealed the potential of using plant Band-Aids to boost healing and regeneration in plants. Researchers have found that a pure form of cellulose produced by bacteria can act as a plant bandage, significantly enhancing the healing process in plants. This discovery, published in Science Advances on February 12, has significant implications for agriculture and plant research.

Plants, unlike animals, cannot escape danger and rely on their remarkable regenerative abilities to recover from injuries. Bacterial cellulose, which is already used in human medicine for treating wounds and burns due to its biocompatibility, biodegradability, and high water retention, has now been found to enhance plant healing as well.

Plant biologist Núria Sánchez Coll and her team were initially testing bacterial cellulose patches embedded with silver nanoparticles to prevent infections in wounded plants. However, they observed that wounds treated with the patches healed better and faster. This prompted them to investigate the molecular mechanisms behind this process.

In their experiments, the researchers made small cuts in the leaves of two common lab plants, Nicotiana benthamiana and Arabidopsis thaliana, and applied the bacterial cellulose patches to half of the wounds. After one week, over 80% of the treated wounds had healed completely, compared to less than 20% of the untreated wounds. Microscopic analysis revealed that tissues in the treated wounds appeared healthy, while untreated wounds showed signs of distress and dehydration.

Furthermore, the researchers discovered that the patches significantly enhanced plant regeneration, particularly in cloning experiments. When bacterial cellulose patches were added to cuttings in petri dishes, the plants regenerated faster, developing roots and leaves more quickly than untreated cuttings. Interestingly, patches made from plant-produced cellulose did not have the same effect.

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Chemical analysis of the bacterial cellulose revealed the presence of plant hormones, likely produced by the bacteria responsible for its synthesis. These hormones remained intact despite sterilization of the patches, possibly due to the dense cellulose matrix preserving them. At a genetic level, the bacterial cellulose-induced healing triggered a different set of genes compared to normal plant wound repair, suggesting a unique response to the foreign body.

While bacterial cellulose has been widely used in human medicine, this study marks the first time it has been found to have intrinsic biological activity. The potential applications of this discovery in agriculture are vast, including facilitating grafting, preserving cut plant material, and serving as a growth medium in laboratories.

Overall, the findings of this study hold promise for advancing agricultural practices and plant research. Further research is underway to explore the molecular mechanisms behind this phenomenon and its potential application to other regeneration processes.

TAGGED:bacteriabasedBandAidHealhelpsPlantsWounds
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