UBC Undergraduate Research

Qualitative study of the effects of Cadmium ion on the morphology, physiology and protein profile of Lolium perenne (Perennial Ryegrass) and Trifolium hybridum (Alsike Cover) Guo, Yinuo (Yvette)


Roadside plants are exposed to heavy metal ions every year in the Lower Mainland. On an average rainy day, roadside groundwater may contain potentially toxic cadmium concentrations as well as other heavy metals. Does this pose severe problems for plant growth and survival? The current study investigated the physiological symptoms of Ryegrass (L. perenne) and Clover (T. hybridum) in response to cadmium stress. Using plate culturing and hydroponic growth medium, we found that both plant species in high cadmium concentration (1000μM) experienced 1) reduction in the morphological development of seedling and young plants, and 2) reduction in metabolism (e.g. photosynthesis rate). These findings shed light on the tolerance limits of roadside plants and their sustainable growth in heavy‐metal prone environments. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”

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