Title

The Effect Of Colored Light Exposed To Rhodomonas Salina On Its Growth /

Author(s)

Christina Byun

School Name

Dutch Fork High School

Grade Level

12th Grade

Presentation Topic

Environmental Science

Presentation Type

Mentored

Mentor

Mentor: Tammi Richardson; University of South Carolina

Abstract

Phytoplankton play a vital role in our ecosystem because they serve as the foundations of the aquatic food web and also produce 50% of the global oxygen through photosynthesis. Phytoplankton growth is affected by factors such as temperature, light, and nutrient availability; however the color of light exposed to the organisms also affect phytoplankton growth because specific pigments absorb and use specific colors of light to photosynthesize. Depending on the factors affecting the environment around the phytoplankton, the color of light emitted in the water can change. The cryptophyte species Rhodomonas salina contains the light-harvesting pigment phycoerythrin, which successfully absorbs blue light but fails to absorb red light well; therefore, R. salina grows and photosynthesizes more efficiently in environments that reflect red light because phycoerythrin is able to absorb red light effectually and use it to photosynthesize and grow. If the color of light exposed to the R. salina species is changed from the color of light exposed in natural ecosystems, they will be able to adapt to the new environment due to their fast growth rate. /

Location

Owens 208

Start Date

4-16-2016 8:45 AM

COinS
 
Apr 16th, 8:45 AM

The Effect Of Colored Light Exposed To Rhodomonas Salina On Its Growth /

Owens 208

Phytoplankton play a vital role in our ecosystem because they serve as the foundations of the aquatic food web and also produce 50% of the global oxygen through photosynthesis. Phytoplankton growth is affected by factors such as temperature, light, and nutrient availability; however the color of light exposed to the organisms also affect phytoplankton growth because specific pigments absorb and use specific colors of light to photosynthesize. Depending on the factors affecting the environment around the phytoplankton, the color of light emitted in the water can change. The cryptophyte species Rhodomonas salina contains the light-harvesting pigment phycoerythrin, which successfully absorbs blue light but fails to absorb red light well; therefore, R. salina grows and photosynthesizes more efficiently in environments that reflect red light because phycoerythrin is able to absorb red light effectually and use it to photosynthesize and grow. If the color of light exposed to the R. salina species is changed from the color of light exposed in natural ecosystems, they will be able to adapt to the new environment due to their fast growth rate. /