The trade-off between the light-harvesting and photoprotective functions of fucoxanthin-chlorophyll proteins dominates light acclimation in Emiliania huxleyi (clone CCMP 1516).
The trade-off between the light-harvesting and photoprotective functions of fucoxanthin-chlorophyll proteins dominates light acclimation in Emiliania huxleyi (clone CCMP 1516).
复制标题
岩藻黄质-叶绿素蛋白的光捕获和光保护功能之间的权衡主导着艾米利亚赫胥黎(克隆 CCMP 1516)的光适应。
DOI:
10.1111/nph.12373
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
McKew BA
中科院分区:
文献类型:
--
作者:
McKew BA
Mechanistic understanding of the costs and benefits of photoacclimation requires knowledge of how photophysiology is affected by changes in the molecular structure of the chloroplast.We tested the hypothesis that changes in the light dependencies of photosynthesis, nonphotochemical quenching and PSII photoinactivation arises from changes in the abundances of chloroplast proteins inEmiliania huxleyistrain CCMP 1516 grown at 30 (Low Light; LL) and 1000 (High Light; HL) μmol photons m−2s−1photon flux densities.Carbon‐specific light‐saturated gross photosynthesis rates were not significantly different between cells acclimated to LL and HL. Acclimation to LL benefited cells by increasing biomass‐specific light absorption and gross photosynthesis rates under low light, whereas acclimation to HL benefited cells by reducing the rate of photoinactivation of PSII under high light. Differences in the relative abundances of proteins assigned to light‐harvesting (Lhcf), photoprotection (LI818‐like), and the photosystem II (PSII) core complex accompanied differences in photophysiology: specifically, Lhcf:PSII was greater under LL, whereas LI818:PSII was greater in HL.Thus, photoacclimation inE. huxleyiinvolved a trade‐off amongst the characteristics of light absorption and photoprotection, which could be attributed to changes in the abundance and composition of proteins in the light‐harvesting antenna of PSII.
登录
查看更多内容
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Raven;R. Geider
通讯作者:
R. Geider
影响因子:
2.7
作者:
Oxborough, Kevin;Moore, C. Mark;Geider, Richard J.
通讯作者:
Geider, Richard J.
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
Lisa R. Moore;S. Chisholm
通讯作者:
S. Chisholm
影响因子:
3.5
作者:
G. Krause;U. Behrend
通讯作者:
U. Behrend
影响因子:
9.4
作者:
McKew, Boyd A.;Lefebvre, Stephane C.;Geider, Richard J.
通讯作者:
Geider, Richard J.