Multi-omic profiling of NPQ improved nicotiana tabacum lines under uniform light conditions
Hutchinson, Sarahann M.
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https://hdl.handle.net/2142/110775
Description
Title
Multi-omic profiling of NPQ improved nicotiana tabacum lines under uniform light conditions
Author(s)
Hutchinson, Sarahann M.
Issue Date
2021-04-07
Director of Research (if dissertation) or Advisor (if thesis)
Long, Stephen P
Department of Study
Plant Biology
Discipline
Plant Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Non-photochemical quenching
photosynthesis
proteomics
transcriptomics
lipidomics
oxylipins
Abstract
Non-photochemical quenching (NPQ) is an essential process protecting plants from oxidative damage under high light conditions. During the transition from light to shade, photosynthesis is briefly limited based on the rate of NPQ relaxation. Increasing expression of NPQ mediating proteins (VDE, ZEP, & PSBS) using an Arabidopsis T-DNA cassette in Nicotiana tabacum L. (tobacco) has been shown to improve the rate of NPQ relaxation, resulting in yield increases under both greenhouse and field conditions (Kromdijk et al., 2016). However, the pleiotropic effects of this gene manipulation have yet to be examined. To address this a comparative, multi-omics approach, two previously described transgenic tobacco lines (VPZ23 & VPZ34) with increased rates of NPQ relaxation were analyzed. The results indicate minimal, but directed, changes to the transformants’ transcriptome and proteome centered that could lower plant biotic defenses.
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