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Investigate how nutrient scarcity influences physical interactions, molecular transfer, and metabolic coordination between distinct anaerobic bacterial species.

February 23, 2015Nature CommunicationsOpen Access

Nutritional stress induces exchange of cell material and energetic coupling between bacterial species

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Investigate how nutrient scarcity influences physical interactions, molecular transfer, and metabolic coordination between distinct anaerobic bacterial species.
Assembled an anaerobic co-culture pairing Gram-positive Clostridium acetobutylicum with Gram-negative, sulfate-reducing Desulfovibrio vulgaris Hildenborough.
Used cellular and molecular approaches to analyze physical cell–cell binding, exchange of cytoplasmic molecules and proteins, and metabolic gene expression under nutrient stress.
Nutrient starvation in D. vulgaris stimulated tight physical cell–cell interactions and direct transfer of cellular contents, including proteins, restoring growth in the nutrient-deprived partner.
Physical contact altered the transcription of two key enzymes controlling pyruvate flux, substantially increasing hydrogen gas production without genetic engineering.

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Implication

Experimental study demonstrates nutrient stress triggers direct cellular material exchange in a bacterial co-culture, highlighting non-engineered pathways to boost hydrogen production.

Cite This Study

Benomar et al. (2015) studied this question.

synapsesocial.com/papers/6a99cbcf0c3d7640c6fdfcbe https://doi.org/10.1038/ncomms7283

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Implication

Experimental study demonstrates nutrient stress triggers direct cellular material exchange in a bacterial co-culture, highlighting non-engineered pathways to boost hydrogen production.

Nutritional stress induces exchange of cell material and energetic coupling between bacterial species

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Discussion

Implication

Cite This Study

Nutritional stress induces exchange of cell material and energetic coupling between bacterial species

Key Points

Discussion

Implication

Cite This Study

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