Microfluidic platform with spatiotemporally controlled micro-environment for studying long-term C. elegans...

Area of Science:

• Neuroscience
• Developmental Biology
• Microfluidics

Background:

• Animal survival depends on environmental sensing and response across timescales.
• Environmental information during development can alter adult behavior and trajectory.
• Neural and molecular mechanisms of these long-term environmental effects are not well understood.

Purpose of the Study:

• To develop a microfluidics-based platform for long-term culture of C. elegans.
• To enable precise control and modulation of the environment for developing nematodes.
• To investigate environmental influences on C. elegans development and behavior.

Main Methods:

• Designed and optimized a microfluidic system for culturing C. elegans from L1 larvae to adulthood.
• Implemented features to prevent bacterial accumulation and maintain consistent flow and nutrients for over 150 hours.
• Manipulated food and pheromone exposure over several days to assess environmental impacts.

Main Results:

• Successfully cultured populations of C. elegans over extended periods with controlled environments.
• Demonstrated environmentally-dependent changes in growth rate.
• Showcased environmentally-induced alterations in entry to the dauer developmental state.

Conclusions:

• The developed microfluidics platform provides a robust tool for long-term C. elegans research.
• This system facilitates the study of mechanisms underlying long-timescale behavioral and developmental plasticity.
• Enables detailed investigation into how environmental cues shape organismal responses over development.