2009 Fiscal Year Final Research Report
Molecular mechanism and physiological function of glutathione-dependent regulation of plastidic aldolase
| Project/Area Number |
19580073
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Research Institute for Biological Science Okayama |
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Principal Investigator |
OGAWA Ken'ichi Research Institute for Biological Science Okayama, グループ長 (70344405)
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| Co-Investigator(Renkei-kenkyūsha) |
IWASAKI Aya (葉田野 郁) 岡山県農林水産総合センター生物科学研究所, 流動研究員 (40443593)
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| Project Period (FY) |
2007 – 2009
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| Keywords | アルドラーゼ / 暗反応 / グルタチオン / 光合成 / 収穫量向上 / 二酸化炭素固定 / バイオマス増産 / レドックス |
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| Research Abstract |
Glutathione regulates various aspects of physiological events in plants. In order to understand the mechanism underlying the glutathione-dependent physiological events, we focused on a plastidic aldolase, one of proteins undergoing glutathionylation. There were three genes encoding plastidic fructose-1,6-bisphosphate aldolase in the Arabidopsis genome. The glutathione-binding isozyme FBA1 was quantitatively minor (2% of the total plastid FBA proteins in the leaf) and categorized into a phylogenic branch different from that containing the other two isozymes FBA2 and FBA3, which were conventionally considered to be involved in the Calvin cycle. However, only FBA1 activity was upregulated by glutathione and the decrease in FBA1 increased the sensitivity against light. Taken together, the Calvin cycle involves new isozyme.
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[Journal Article] The deficient glutathione in guard cells facilitates abscisic acid-induced stomatal closure but does not affect light-induced stomatal opening.2008
Author(s)
Jahan, M.S., 小川健一, Nakamura, Y., Shimoishi, Y., Mori, I.C., Murata, Y.
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Journal Title
Biosci. Biotechnol. Biochem. 72
Pages: 2795-2798
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