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Bacterial 'syringe' necessary for marine animal development
Date:1/14/2014

e tail-like structures can cause tubeworm metamorphosis, the nature of the interaction between the tail and the tubeworm is still unknown, Shikuma says. "Our next step is to determine whether metamorphosis is caused by an injection into the tubeworm larva tissue, and, then, if the mechanical action is the trigger, or if the bacterium is injecting a chemical morphogen," he says. He and his colleagues would also like to determine if mac genes and the tail-like structures they encode might influence other marine invertebrates, such as corals and sea urchins, that also rely on P. luteoviolacea biofilms for metamorphosis.

Understanding this process might one day help reduce the financial losses from P. luteoviolacea biofilm fouling on ship hulls, for example. While applications are a long way off, Newman says, it is also interesting to speculate on the possibility of leveraging metamorphosis induction in beneficial marine invertebrates to improve yields in aquaculture and promote coral reef growth.

The study, the researchers emphasize, is an example of the collaborative research that is nurtured at Caltech. For his part, Shikuma was inspired to utilize electron cryotomography after hearing a talk by Martin Pilhofer at the Center for Environmental Microbiology Interactions (CEMI) at Caltech. "Martin gave a presentation on another type of phage tail-like structures in the monthly CEMI seminar. I saw his talk and I thought that the mac genes I was working with might somehow be related," Shikuma says. Their subsequent collaboration, Newman says, made the current study possible.


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Contact: Deborah Williams-Hedges
mr@caltech.edu
626-395-3227
California Institute of Technology
Source:Eurekalert

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