Abstract：
:The unicellular green alga Chlamydomonas reinhardtii acclimates to low-CO2 (LC) conditions by actively transporting inorganic carbon (Ci) into the cell, resulting in an increase in photosynthetic efficiency. This mechanism is called the carbon-concentrating mechanism (CCM), and soluble protein LCIB is essential for the CCM. LCIB is localized in the vicinity of pyrenoid, a prominent structure in the chloroplast, under LC conditions in the light. In contrast, in the dark or in high-CO2 conditions, where the CCM is inactive, LCIB diffuses away from the pyrenoid. Although the functional importance of LCIB for the CCM has been shown, the significance and mechanism of the change in suborganellar localization of LCIB remain to be elucidated. In this study, we screened 13,000 DNA-tagged mutants and isolated twelve aberrant LCIB localization (abl) mutants under LC conditions. abl-1 and abl-3 with dispersed and speckled localization of LCIB in the chloroplast showed significant decreases in Ci affinity, Ci accumulation, and CO2 fixation. Ten abl mutants (abl-1, abl-3, abl-4, abl-5, abl-6, abl-7, abl-8, abl-9, abl-11, and abl-12) showed not only aberrant LCIB localization but also reduced pyrenoid sizes. Moreover, three abl mutants (abl-10, abl-11, and abl-12) showed the increased numbers of pyrenoids per cell. These results suggested that the specific LCIB localization could be related to pyrenoid development.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Yamano T,Asada A,Sato E,Fukuzawa Hdoi
10.1007/s11120-013-9963-6subject
Has Abstractpub_date
2014-09-01 00:00:00pages
193-200issue
2-3eissn
0166-8595issn
1573-5079journal_volume
121pub_type
杂志文章abstract：:Moderately high temperature reduces photosynthetic capacities of leaves with large effects on thylakoid reactions of photosynthesis, including xanthophyll conversion in the lipid phase of the thylakoid membrane. In previous studies, we have found that leaf temperature of 40°C increased zeaxanthin accumulation in dark-...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9672-y
更新日期：2011-09-01 00:00:00
abstract：:Around 1960 experiments of Arnold and Clayton, Chance and Nishimura and Calvin and coworkers demonstrated that the primary photosynthetic electron transfer processes are not abolished by cooling to cryogenic temperatures. After a brief historical introduction, this review discusses some aspects of electron transfer in...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00041000
更新日期：1996-05-01 00:00:00
abstract：:The quenching of variable fluorescence yield (qN) and the quenching of dark level fluorescence yield (q0) directly atributable to high-energy-state fluorescence quenching (qE) was studied to distinguish between energy dissipation in the antenna and light harvesting complexes (antenna quenching) and energy dissipation ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00033161
更新日期：1990-09-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-009-9479-2
更新日期：2009-10-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-015-0195-9
更新日期：2016-03-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00118298
更新日期：1986-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00046879
更新日期：1988-10-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00019150
更新日期：1987-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-004-5577-3
更新日期：2005-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-018-0498-8
更新日期：2018-08-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000030427.35645.5c
更新日期：2004-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00035259
更新日期：1988-02-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00039172
更新日期：1992-08-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00034267
更新日期：1981-12-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00040990
更新日期：1996-05-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00034783
更新日期：1996-09-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-018-0575-z
更新日期：2019-03-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1013831823701
更新日期：2001-01-01 00:00:00
abstract：:Photosynthetic electron transfer has been examined in whole cells, isolated membranes and in partially purified reaction centers (RCs) of Roseicyclus mahoneyensis, strain ML6 and Porphyrobacter meromictius, strain ML31, two species of obligate aerobic anoxygenic phototrophic bacteria. Photochemical activity in strain ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9718-1
更新日期：2012-02-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00117671
更新日期：1987-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000017194.34167.6d
更新日期：2004-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00014592
更新日期：1994-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：1991-03-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9544-x
更新日期：2010-06-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1014947412940
更新日期：2002-01-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9887-1
更新日期：2014-05-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00052124
更新日期：1983-09-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-004-7927-6
更新日期：2005-06-01 00:00:00
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journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00035450
更新日期：1988-09-01 00:00:00
abstract：:Oxygenic photosynthesis is driven by two multi-subunit membrane protein complexes, Photosystem I and Photosystem II. In plants and green algae, both complexes are composed of two moieties: a reaction center (RC), where light-induced charge translocation occurs, and a peripheral antenna that absorbs light and funnels i...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000036881.23512.42
更新日期：2004-01-01 00:00:00
