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Microbial host-mutualist communications in marine organisms
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Gula, Rachel. Microbial host-mutualist communications in marine organisms. Retrieved from https://doi.org/doi:10.7282/T3X06B71

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TitleMicrobial host-mutualist communications in marine organisms
NameGula, Rachel (author); Adams, Diane K (chair); Bidle, Kay (internal member); Munroe, Daphne (internal member); Bushek, David (internal member); Rutgers University; School of Graduate Studies
Date Created2017
Other Date2017-10 (degree)
SubjectOceanography, Giant clams
Extent1 online resource (ix, 62 p. : ill.)
DescriptionMutualistic symbionts communicate with their hosts and can control host organ development. To determine if symbionts influence development in the giant clam Hippopus hippopus, I compared growth and cell proliferation in treatments of juveniles either inoculated or not inoculated (control) with Symbiodinium sp. Controls grew even without symbionts (1.03±0.41 µm/d, SE). Inoculated individuals grew significantly faster (2.91±0.37 µm/d) than control individuals (P<0.001). However, shell lengths did not significantly differ between treatments until day 22 post-fertilization, suggesting a delay in growth effects. Proliferating clam cells were randomly distributed (P=0.99) at day 13 but became non-randomly distributed (P=0.002) with increased proliferation within ~25 µm of a Symbiodinium at day 26. These results indicate that H. hippopus has a facultative period over which juveniles can still grow without Symbiodinium. I also reviewed current literature to determine what communication mechanisms may be inducing these effects in H. Hippopus. Host-mutualist interactions in giant clams and other marine species may involve a pathogen recognition mechanism such as MAMP/PRR pairing (including the prevalent lectin/glycan recognition), or the complement system.
NoteM.S.
NoteIncludes bibliographical references
Noteby Rachel Gula
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/T3X06B71
Languageeng
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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