Mosquitoes Add Bacteria to Water to Help Larvae Grow: Preprint

Pregnant mosquito females deploy the microbe Elizabethkingia to speed larval growth; the larvae, in turn, help the bacteria outcompete other strains.

Written byNatalia Mesa, PhD
| 4 min read
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Aedes aegypti mosquitoes, carriers of many devastating diseases including dengue, Zika, and yellow fever, thrive in a variety of environments. While particularly pesky in jungles and forests, they even flourish in cities, laying eggs in nutrient-poor pools of standing rainwater. This has left scientists wondering: how is it that they survive so well in urban areas?

A preprint published on February 23 in bioRxiv shows that female mosquitoes might be able to sculpt the environment where they lay their eggs, depositing growth-boosting bacteria in the water alongside their young. The researchers say that the findings might help us develop new ways to control the disease-bearing pests.

“We’ve always wondered how mosquitoes manage to get enough nutrients from such a poor environment,” says study author Marcelo Lorenzo, a biologist at the René Rachou Institute in Minas Gerais, Brazil.

Previous research has shown that adult mosquitoes have a symbiotic relationship with some ...

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    As she was completing her graduate thesis on the neuroscience of vision, Natalia found that she loved to talk to other people about how science impacts them. This passion led Natalia to take up writing and science communication, and she has contributed to outlets including Scientific American and the Broad Institute. Natalia completed her PhD in neuroscience at the University of Washington and graduated from Cornell University with a bachelor’s degree in biological sciences. She was previously an intern at The Scientist, and currently freelances from her home in Seattle. 

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