In situ mapping of the energy flow through the entire photosynthetic apparatus
Dostál, Jakub LU ; Pšenčík, Jakub and Zigmantas, Donatas LU
(2016)
In Nature Chemistry
8(7).
p.705-710
- Abstract
Absorption of sunlight is the first step in photosynthesis, which provides energy for the vast majority of organisms on Earth. The primary processes of photosynthesis have been studied extensively in isolated light-harvesting complexes and reaction centres, however, to understand fully the way in which organisms capture light it is crucial to also reveal the functional relationships between the individual complexes. Here we report the use of two-dimensional electronic spectroscopy to track directly the excitation-energy flow through the entire photosynthetic system of green sulfur bacteria. We unravel the functional organization of individual complexes in the photosynthetic unit and show that, whereas energy is transferred within... (More)
Absorption of sunlight is the first step in photosynthesis, which provides energy for the vast majority of organisms on Earth. The primary processes of photosynthesis have been studied extensively in isolated light-harvesting complexes and reaction centres, however, to understand fully the way in which organisms capture light it is crucial to also reveal the functional relationships between the individual complexes. Here we report the use of two-dimensional electronic spectroscopy to track directly the excitation-energy flow through the entire photosynthetic system of green sulfur bacteria. We unravel the functional organization of individual complexes in the photosynthetic unit and show that, whereas energy is transferred within subunits on a timescale of subpicoseconds to a few picoseconds, across the complexes the energy flows at a timescale of tens of picoseconds. Thus, we demonstrate that the bottleneck of energy transfer is between the constituents.
(Less)
- author
- Dostál, Jakub
LU
; Pšenčík, Jakub
and Zigmantas, Donatas
LU
- organization
- publishing date
- 2016-07-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Chemistry
- volume
- 8
- issue
- 7
- pages
- 6 pages
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:84975705219
- pmid:27325098
- wos:000378280400015
- ISSN
- 1755-4330
- DOI
- 10.1038/nchem.2525
- language
- English
- LU publication?
- yes
- id
- 98b2ed2e-894d-4cad-be84-8d967b03eba4
- date added to LUP
- 2017-01-17 16:10:58
- date last changed
- 2024-05-04 17:28:24
@article{98b2ed2e-894d-4cad-be84-8d967b03eba4,
abstract = {{<p>Absorption of sunlight is the first step in photosynthesis, which provides energy for the vast majority of organisms on Earth. The primary processes of photosynthesis have been studied extensively in isolated light-harvesting complexes and reaction centres, however, to understand fully the way in which organisms capture light it is crucial to also reveal the functional relationships between the individual complexes. Here we report the use of two-dimensional electronic spectroscopy to track directly the excitation-energy flow through the entire photosynthetic system of green sulfur bacteria. We unravel the functional organization of individual complexes in the photosynthetic unit and show that, whereas energy is transferred within subunits on a timescale of subpicoseconds to a few picoseconds, across the complexes the energy flows at a timescale of tens of picoseconds. Thus, we demonstrate that the bottleneck of energy transfer is between the constituents.</p>}},
author = {{Dostál, Jakub and Pšenčík, Jakub and Zigmantas, Donatas}},
issn = {{1755-4330}},
language = {{eng}},
month = {{07}},
number = {{7}},
pages = {{705--710}},
publisher = {{Nature Publishing Group}},
series = {{Nature Chemistry}},
title = {{In situ mapping of the energy flow through the entire photosynthetic apparatus}},
url = {{https://lup.lub.lu.se/search/files/109836142/Dostal_et_al_2016_NatChem_full.pdf}},
doi = {{10.1038/nchem.2525}},
volume = {{8}},
year = {{2016}},
}