Seed dispersal in plants has led to different evolutionary adaptations to aid the distribution of offspring away from the parental plant. Abronia umbellata, a plant endemic to the Pacific coastal dunes of North America, produces winged fruits called anthocarps that vary in size and shape between individuals and populations. Research on geographic patterns of wing size variation has suggested that selection for dispersal ability has lead to anthocarps with larger wings at the edges of the species’ geographic range compared to the center. The expertise of Dr. Lacroix in the examination of plant organ development and morphology provided an ideal environment to collaborate with Dr. Samis and to initiate a microscopic assessment of wing development in this fascinating plant.

 There were two goals to my project: (1) to determine the stage at which anthocarp wings started developing in the growing fruit, and (2) to assess the importance of fertilization in the onset of seed.

 Being able to understand different mechanisms of dispersion allows us to acquire knowledge on the patterns and methods used by plants to find, occupy and persists in habitats. This knowledge enables the protection of endangered species, many of which are limited by dispersal. 

 I have always been intrigued by botany and was also interested in learning the microscopy, staining and sectioning techniques to increase my practical skills. This project provided me with a great opportunity to learn to work meticulously in a laboratory setting. 

 Paraffin sectioning of plant tissues requires a lot of time and patience, and being able to view the product of my work under the microscope is very rewarding. I also truly enjoy looking at plants and cells from a microscopic view. 

 Working with the Scanning electron microscope was quite exciting. It is absolutely amazing to see the minute detail of living things from such a precise and fine-scale perspective.