Title

Physiological Effects of Disrupted Circadian Cycles in Geranium oreganum

Date

5-31-2018 1:00 PM

End Time

31-5-2018 3:00 PM

Location

WUC Summit

Session Chair

Jeff Snyder

Session Title

Biology posters

Presentation Type

Poster session

Faculty Sponsor(s)

Ava Howard

Abstract

Circadian cycles govern an organism’s internal clock and regulate processes such as gene expression, stomatal opening, and reproductive cycles in plants. Most organisms base circadian cycles upon patterns of sunlight and temperature changes and function most optimally upon an equinoctial day-night cycle with roughly equal periods of light and dark within a 24-hour period. Plants are especially sensitive to patterns of sunlight and understanding the response of plants to abnormal circadian cycles can aid in agricultural development of areas where sunlight is at a premium. Treatment plants in this experiment were cycled through 24-hour blocks of daylight and nighttime conditions while control plants were exposed to an equinoctial day-night cycle. Plants grown under treatment displayed lower stomatal density, reduced photosynthetic reaction time in response to quick bursts of light, and lowered water conductance compared to control plants.

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May 31st, 1:00 PM May 31st, 3:00 PM

Physiological Effects of Disrupted Circadian Cycles in Geranium oreganum

WUC Summit

Circadian cycles govern an organism’s internal clock and regulate processes such as gene expression, stomatal opening, and reproductive cycles in plants. Most organisms base circadian cycles upon patterns of sunlight and temperature changes and function most optimally upon an equinoctial day-night cycle with roughly equal periods of light and dark within a 24-hour period. Plants are especially sensitive to patterns of sunlight and understanding the response of plants to abnormal circadian cycles can aid in agricultural development of areas where sunlight is at a premium. Treatment plants in this experiment were cycled through 24-hour blocks of daylight and nighttime conditions while control plants were exposed to an equinoctial day-night cycle. Plants grown under treatment displayed lower stomatal density, reduced photosynthetic reaction time in response to quick bursts of light, and lowered water conductance compared to control plants.