Direct observation of energy transfer in a photosynthetic membrane: Chlorophyll b to chlorophyll a transfer in LHC

Journal Article · Thu Dec 28 00:00:00 EST 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100363a001· OSTI ID:7068609

Eads, D D; Castner, Jr, E W; Alberte, R S; Mets, L; Fleming, G R ^[1]

---

1. Univ. of Chicago, IL (USA)

Subpicosecond fluorescence upconversion has been used to measure the rate of chlorophyll b to chlorophyll a electronic energy transfer in situ within the LHC pigment proteins of Chlamydomonas reinhardtii mutant C2. The time scale of energy transfer is 0.5 {plus minus} 0.2 ps as determined from the rise time of chlorophyll a fluorescence following chlorophyll b excitation. Estimates of the energy-transfer rate based on Foerster weak coupling theory are discussed.

• OSTI ID: 7068609
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 93:26; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES
PHOTOSYNTHETIC MEMBRANES
ENERGY TRANSFER
CALCULATION METHODS
CHLOROPHYLL
DATA ANALYSIS
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
MEASURING INSTRUMENTS
MEASURING METHODS
PHOTOSYNTHETIC REACTION CENTERS
CARBOXYLIC ACIDS
DATA
EMISSION SPECTROSCOPY
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
MEMBRANES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYTOCHROMES
PIGMENTS
PORPHYRINS
PROTEINS
SPECTROSCOPY
400500* - Photochemistry
550000 - Biomedical Sciences
Basic Studies