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Project Descriptions
Spring 2025

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Showing 4 projects out of 4 found. On page 1 out of 1.
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Have invasive rhizobia escaped their bacteriophage enemies? And, how important are phages to rhizobial ecology?

Ellen Simms - Professor, Integrative Biology

Status: Check back for status     Weekly Hours: to be negotiated     Location: On Campus

Introduced plants can become invasive when they escape the insect and microbial enemies that control native plant populations. Legumes benefit from symbiotic relationships with nitrogen-fixing bacteria called rhizobia, which colonize nodules in legume roots. We have found that three invasive leguminous plant species (French broom, Spanish broom, and Scotch...

 Biological & Health Sciences

Plant-Microbiome Co-Occurrence

Ellen Simms - Professor, Integrative Biology

Status: Full- no new appr needed     Weekly Hours: to be negotiated     Location: Off Campus

Until recently there was still the idea that when it comes to the microbial world, since it is so small, everything must be everywhere. Much current research is showing this claim does not hold water. Few things are truly everywhere and most things, even on the micro scale, have very...

 Biological & Health Sciences

Can specialist phages acquire new hosts without losing old hosts?

Ellen Simms - Professor, Integrative Biology

Status: Full- no new appr needed     Weekly Hours: to be negotiated     Location: On Campus

Bacteriophages (phages, for short) are viruses that attack and kill bacteria. Phages tend to be host specific (specialize on particular bacteria), which allows them to influence bacterial community composition. Legumes are plants that benefit from symbiotic relationships with nitrogen-fixing bacteria called rhizobia, which colonize nodules in legume roots. Rhizobia...

 Biological & Health Sciences

Plant adaptation to high temperature stress

Ellen Simms - Professor, Integrative Biology

Status: Full- no new appr needed     Weekly Hours: 9-11 hrs     Location: On Campus

High temperature is an abiotic stress that impedes the growth and productivity of all crops irrespective of their heat tolerance. High temperature affects the development of both vegetative and reproductive structures. It arrests cell proliferation arrest, increases vacuolization, causes over-development of chloroplasts, certain abnormalities in other organelles, and comprehensively...

 Biological & Health Sciences

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