2026-09-22T11:55:10Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/87051 2023-07-11 col_2142_5131 col_2142_16357 com_2142_5130 com_2142_16356 com_2142_8913 com_2142_8903

Archie R. Portis, Jr. Wang, Dafu 2015-09-28T15:22:54Z 2015-09-28T15:22:54Z 10000-01-01 2006 2006 A novel Arabidopsis chloroplast protein, named PIFI, with a similar C-extension as activase was identified as functioning in chlororespiration and possibly cyclic electron transport by reverse genetics. In a pifi mutant, which possesses an intact NDH complex, NDH-mediated dark reduction of plastoquinone was disrupted as indicated by its post-illumination fluorescence kinetics. The pifi mutant exhibited low capacity for thermal dissipation and a low oxidation level of the PSI reaction center, but similar electron transport efficiency of PSII as that of wild type, suggesting an impaired cyclic electron flow around PSI in the mutant. The PIFI protein is dispensable under standard growth conditions but important in protecting plants from photoinhibition and mild heat stress. Made available in DSpace on 2015-09-28T15:22:54Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3243018.pdf: 4100321 bytes, checksum: 9dd86fec0b05eafcdeb6bf7e914e7e51 (MD5) Previous issue date: 2006 Embargo set by: Seth Robbins for item 88332 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 155 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. http://hdl.handle.net/2142/87051 (MiAaPQ)AAI3243018 eng Chemistry, Biochemistry Rubisco Activase -- a Typical AAA+ Protein With Unique Features, And, PIFI -- a Novel Chloroplast Protein Functioning in Chlororespiration text Plant Biology Plant Biology University of Illinois at Urbana-Champaign Dissertation Ph.D.