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The post‐illumination chlorophyll fluorescence transient indicates the RuBP regeneration limitation of photosynthesis in low light in Arabidopsis
Author(s) -
Gotoh Eiji,
Kobayashi Yoshichika,
Tsuyama Michito
Publication year - 2010
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2010.05.039
Subject(s) - photosynthesis , arabidopsis , chlorophyll fluorescence , transient (computer programming) , fluorescence , regeneration (biology) , chlorophyll , botany , chemistry , biophysics , chlorophyll a , biology , microbiology and biotechnology , physics , optics , biochemistry , gene , mutant , computer science , operating system
The mechanism of post‐illumination chlorophyll fluorescence transient (PIFT) was investigated in Arabidopsis. PIFT was detected in the wild type after illumination with low light. In the fba3‐2 ( fructose‐1,6‐bisphosphate aldolase ) mutant, in which PIFT is enhanced, strong light also induced PIFT. PIFT was suppressed not only in the triose phosphate/phosphate translocator ( tpt‐2 ) mutant, but also in tpt‐2 fba3‐2 , suggesting that triose phosphates, such as dihydroxyacetone phosphate (DHAP), are involved in the PIFT mechanism. We concluded that PIFT is associated with ribulose‐1,5‐bisphosphate (RuBP)‐regeneration limitation of photosynthesis in low light.