Biological solar energy conversion: approaches to overcome yield, stability and product limitations. Progress report No. 5, 1 April-30 September 1977
Technical Report
·
OSTI ID:6195319
Studies of factors causing loss of function in isolated chloroplasts were continued. The effects of linolenic acid on electron transport reactions in isolated spinach chloroplasts were investigated. Mass spectrometer studies indicated that the O/sub 2/ cycle was half-saturated at approximately 8% O/sub 2/. During the course of CO/sub 2/ depletion, O/sub 2/ uptake did not immediately reflect the observed CO/sub 2/ uptake, indicating that another internal bound form of CO/sub 2/ was used. In another series of studies, NO/sub 3/(-) suppressed O/sub 2/ uptake (compared to NH/sub 4/(+)) at light intensities ranging from compensation to saturation. A spectrophotometer was assembled to measure fast absorption changes in the U.V. and visible. Comparative studies of chloroplasts prepared from spinach leaves and bundlesheath and mesophyll tissue of corn were continued. Measurements indicated that the size of the light-harvesting pigment unit is about the same in the three tissues; and the P700/chl ratio of bundle-sheath chloroplasts is twice that of the other two tissues.
- Research Organization:
- Martin Marietta Labs., Baltimore, MD (USA)
- OSTI ID:
- 6195319
- Report Number(s):
- PB-286487
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of photosynthetic activities of spinach chloroplasts with those of corn mesophyll and corn bundle sheath tissue
Biological solar energy conversion: approaches to overcome yield, stability and product limitations. Progress report No. 3, 1 Apr 1976--30 Sep 1976
Spinach leaf chloroplast CO sub 2 and NO sub 2 sup minus photoassimilations do not compete for photogenerated reductant
Journal Article
·
Sat Dec 31 23:00:00 EST 1977
· Plant Physiol.; (United States)
·
OSTI ID:5301267
Biological solar energy conversion: approaches to overcome yield, stability and product limitations. Progress report No. 3, 1 Apr 1976--30 Sep 1976
Technical Report
·
Wed Dec 31 23:00:00 EST 1975
·
OSTI ID:7113605
Spinach leaf chloroplast CO sub 2 and NO sub 2 sup minus photoassimilations do not compete for photogenerated reductant
Journal Article
·
Wed Nov 30 23:00:00 EST 1988
· Plant Physiology; (USA)
·
OSTI ID:6999244
Related Subjects
09 BIOMASS FUELS
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
BIOCHEMICAL REACTION KINETICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CELL CONSTITUENTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLOROPLASTS
CONVERSION
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELECTRON TRANSFER
ELEMENTS
ENERGY CONVERSION
FLUIDS
INHIBITION
KINETICS
LINOLENIC ACID
MONOCARBOXYLIC ACIDS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
RADIATIONS
REACTION KINETICS
SOLAR ENERGY CONVERSION
SYNTHESIS
VISIBLE RADIATION
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
BIOCHEMICAL REACTION KINETICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CELL CONSTITUENTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLOROPLASTS
CONVERSION
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELECTRON TRANSFER
ELEMENTS
ENERGY CONVERSION
FLUIDS
INHIBITION
KINETICS
LINOLENIC ACID
MONOCARBOXYLIC ACIDS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
RADIATIONS
REACTION KINETICS
SOLAR ENERGY CONVERSION
SYNTHESIS
VISIBLE RADIATION