Primary productivity and photoacclimation in cyanobacteria a comparison of carbon fixation, oxygen evolution and in vivo fluorescence

2004 ◽  
Vol 113 ◽  
pp. 143-157 ◽  
Author(s):  
Brigitte Müller ◽  
Michael Schagerl
Keyword(s):  
Oxygen Evolution ◽  
Primary Productivity ◽  
Carbon Fixation ◽  
In Vivo Fluorescence

Estimation of Primary Productivity by Chlorophyll a in vivo Fluorescence in Freshwater Phytoplankton

2000 ◽  
Vol 38 (1) ◽  
pp. 111-126 ◽  
Author(s):  
M. Gilbert ◽  
A. Domin ◽  
A. Becker ◽  
C. Wilhelm
Keyword(s):  
Chlorophyll A ◽  
Primary Productivity ◽  
Freshwater Phytoplankton ◽  
In Vivo Fluorescence

scholarly journals Relationship between the maximum quantum yield of carbon fixation and the minimum quantum yield of chlorophyll a in vivo fluorescence in the Gulf of St. Lawrence

1995 ◽  
Vol 40 (5) ◽  
pp. 956-968 ◽  
Author(s):  
Marcel Babin ◽  
Jean-Claude Therriault ◽  
Louis Legendre ◽  
Barbara Nieke ◽  
Rainer Reuter ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Chlorophyll A ◽  
Carbon Fixation ◽  
Maximum Quantum Yield ◽  
In Vivo Fluorescence

The Underestimated Importance of Dark Carbon Fixation to Primary Productivity in Lake Kinneret

1993 ◽  
Vol 27 (7-8) ◽  
pp. 373-380
Author(s):  
Ronny Herzig ◽  
Barbara Butow
Keyword(s):  
Primary Productivity ◽  
Time Course ◽  
Carbon Fixation ◽  
Lake Kinneret ◽  
Carbon Uptake ◽  
Phytoplankton Communities ◽  
Total Light ◽  
Light History ◽  
Dark Carbon Fixation

The rates of light and dark 14CO2 fixation by natural phytoplankton communities in Lake Kinneret were studied in situ and in vivo in the laboratory. Dark fixation (DF) contributed an important part of the total primary productivity in Lake Kinneret. In addition, it was found that during the dark period the relative amount of fixed inorganic carbon depends upon the sampling depth and season. The DF contribution of the dominant phytoplankton species in Lake Kinneret (Peridinium gatunense) was found to be between 3-30% of the total light carbon fixation (LF). Carbon uptake was dependent on the light history of the cells. DF and LF in photosynthetic bacteria was found to be equivalent. A time course of carbon uptake by Peridinium showed that DF increased with time.

Sectioned rubisco crystals in TEM

1990 ◽  
Vol 48 (3) ◽  
pp. 664-665
Author(s):  
Gunnel Karlsson ◽  
Jan-Olov Bovin ◽  
Michael Bosma
Keyword(s):  
Plant Cell ◽  
Carbon Fixation ◽  
Unit Cell ◽  
Protein Crystals ◽  
Unit Cell Parameters ◽  
Cell Parameters ◽  
Photosynthetic Carbon Fixation ◽  
Photosynthetic Carbon

RuBisCO (D-ribulose-l,5-biphosphate carboxylase/oxygenase) is the most aboundant enzyme in the plant cell and it catalyses the key carboxylation reaction of photosynthetic carbon fixation, but also the competing oxygenase reaction of photorespiation. In vitro crystallized RuBisCO has been studied earlier but this investigation concerns in vivo existance of RuBisCO crystals in anthers and leaves ofsugarbeets. For the identification of in vivo protein crystals it is important to be able to determinethe unit cell of cytochemically identified crystals in the same image. In order to obtain the best combination of optimal contrast and resolution we have studied different staining and electron accelerating voltages. It is known that embedding and sectioning can cause deformation and obscure the unit cell parameters.

ALGAE AND PROGRESS IN PHOTOSYNTHESIS RESEARCH I-Oxygen evolution and carbon fixation

2000 ◽  
Vol 1 (1) ◽  
pp. 235-244
Author(s):  
Ahmed Hamad ◽  
Mohamed Osman ◽  
Refaat Abdel-Basset
Keyword(s):  
Oxygen Evolution ◽  
Carbon Fixation ◽  
Photosynthesis Research

In Vivo Fluorescence of Chlorophyll A: Estimation of Phytoplankton Biomass and Activity in Římov Reservoir (Czech Republic)

1993 ◽  
Vol 28 (6) ◽  
pp. 29-33 ◽  
Author(s):  
V. Vyhnálek ◽  
Z. Fišar ◽  
A. Fišarová ◽  
J. Komárková
Keyword(s):  
Czech Republic ◽  
Chlorophyll Fluorescence ◽  
Primary Production ◽  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
In Vivo Fluorescence ◽  
Fluorescence Of Chlorophyll A ◽  
Římov Reservoir ◽  
Natural Phytoplankton

The in vivo fluorescence of chlorophyll a was measured in samples of natural phytoplankton taken from the Římov Reservoir (Czech Republic) during the years 1987 and 1988. The fluorescence intensities of samples either with or without addition of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron, DCMU) were found reliable for calculating the concentration of chlorophyll a during periods when cyanobacteria were not abundant. The correction for background non-chlorophyll fluorescence appeared to be essential. No distinct correlation between a DCMU-induced increase of the fluorescence and primary production of phytoplankton was found.

Lipidots: competitive organic alternative to quantum dots for in vivo fluorescence imaging

2011 ◽  
Vol 16 (9) ◽  
pp. 096013 ◽  
Author(s):  
Julien Gravier ◽  
Fabrice P. Navarro ◽  
Thomas Delmas ◽  
Frédérique Mittler ◽  
Anne-Claude Couffin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Imaging ◽  
In Vivo Fluorescence ◽  
In Vivo Fluorescence Imaging

In vivo fluorescence imaging of glutamate in sensory cortex

2010 ◽  
Vol 68 ◽  
pp. e155
Author(s):  
Hiroshi Sekiya ◽  
Shigeyuki Namiki ◽  
Hirokazu Sakamoto ◽  
Sho Iinuma ◽  
Kenzo Hirose ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Sensory Cortex ◽  
In Vivo Fluorescence ◽  
In Vivo Fluorescence Imaging
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