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Development

How does the brain know it’s cold?

Mammals maintain stable body temperature largely independent of the temperature of their environment and even small deviations from optimal internal temperature can threaten their survival. Thermoregulation critically depends on the ability to sense deep body temperature by the intrinsically warm and cold-sensitive neurons in the preoptic area of the hypothalamus (POA). However, the precise physiological roles of the temperature-sensitive POA neurons and the molecular mechanisms responsible for their temperature sensitivity are poorly understood.

Functional genomics of adaptation to abiotic stresses

Plant nutrient metabolism is regulated through a variety of biological processes, many of which are controlled and coordinated by internal factors such as cell type and developmental stage as well as external factors such as soil quality and other environmental conditions. My research focuses on investigating the genetic and molecular underpinnings of developmental and physiological processes that have been altered to allow plants to tolerate challenging nutrient environments.

Up close and personal: Short-range heat and humidity detectors for mosquito host-seeking and egg-laying behaviors

Mosquitoes use multiple host-associated cues to efficiently locate sources of blood. While detection mechanisms for longer-range cues like CO2 and odors have been widely studied, less is known about how mosquitoes sense the short-range heat and humidity gradients surrounding hosts. We recently demonstrated that heat-seeking in the malaria vector Anopheles gambiae is driven by cooling-activated neurons requiring the Ionotropic Receptor (IR) subunit IR21a.

Innovation in the Classroom: Moving toward Equity and Improving Student Skills

For two decades, I created new courses, developed new teaching strategies, and mentored
junior faculty and postdocs while teaching a wide range of Biology courses. Then in 2020 the
pandemic and stark racial injustices forced us to make drastic changes in how we teach, and to
rethink how we address students’ experiences of our coursework. I will describe how the
pandemic has been an opportunity for me to improve student experience and growth in my
courses: getting rid of high stakes exams where I can, creating student-centered policies and

Tools for singing loudly and amplifiers for hearing better: the tree cricket story

Crickets use sound to find mates. The louder their sound is the further it reaches. The textbooks say that they increase their acoustic space using just morphology and mechanics. Song producing wings and females ears resonate at the same frequency enhancing the size of their acoustic space. But some crickets didn’t read the textbook. In this talk, I will present some research on the Oecanthines, beautiful insects called tree crickets. Males tree crickets use a behavioural strategy to make themselves louder. They manufacture a baffle, a tool that makes them louder.

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