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The effects of ocean acidification on Prochlorococcus

Aylor, Anna
http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors1527670902763292

Abstract Details

2018, Bachelor of Science, Wittenberg University, Biology.
Prochlorococcus is the most abundant cyanobacteria in the global ocean, and is a part of the marine microbial loop. Climate change, a stressor, presents many threats to Prochlorococcus, two of which are of major concern: increased temperature and increased acidity. Both pH and temperature are not constant and vary in the ocean seasonally, diurnally, and meteorologically. This variation suggests that stress related to interactions with these variables may be complex. This present study examined the effects of lowered pH and increased temperature on Prochlorococcus in the short term. Two strains of Prochlorococcus, high-light and low-light, were manipulated to experience increased temperature, decreased pH, and a combination of the effects and both strains' responses was observed. Photosynthetic health significantly differed in the low-light clade when the pH was lowered (p = 0.045). Extracted chlorophyll showed statistical variation in the high-light clade when pH was lowered (p = 0.036), and in the low-light clade in both treatments where pH was lowered and temperature was increased (both p < 0.001). There was no statistical difference when temperature and pH were manipulated at the same time. However, more data is needed to see if these results are replicable and to see how this would affect grazing intensity and community structure.
Jim Welch, Ph.D. (Advisor)
Matthew Collier, Ph.D. (Committee Member)
Michael Mattison, Ph.D. (Committee Member)
20 p.
Biology; Environmental Science
cyanobacteria, acidification, Prochlorococcus, marine biology, photosynthesis

Recommended Citations

Citations

  • Aylor, A. (2018). The effects of ocean acidification on Prochlorococcus [Undergraduate thesis, Wittenberg University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors1527670902763292

    APA Style (7th edition)

  • Aylor, Anna. The effects of ocean acidification on Prochlorococcus. 2018. Wittenberg University, Undergraduate thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors1527670902763292.

    MLA Style (8th edition)

  • Aylor, Anna. "The effects of ocean acidification on Prochlorococcus." Undergraduate thesis, Wittenberg University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wuhonors1527670902763292

    Chicago Manual of Style (17th edition)

wuhonors1527670902763292
815
© 2018, all rights reserved.
This open access ETD is published by Wittenberg University Honors Theses and OhioLINK.