Paclobutrazol Reduces Photosynthetic Carbon Dioxide Uptake Rate in Grapevines
نویسندگان
چکیده
منابع مشابه
Calibration of simultaneous measurements of photosynthetic carbon dioxide uptake and oxygen evolution in leaves.
The stoichiometric ratio of O2 evolution to CO2 uptake during photosynthesis reveals information about reductive metabolism, including the reduction of alternative electron acceptors, such as nitrite and oxaloacetate. Recently we reported that in simultaneous measurements of CO2 uptake and O2 evolution in a sunflower leaf, O2 evolution changed by 7% more than CO2 uptake when light intensity was...
متن کاملDetermination of growth rate and yield of nitrifying bacteria by measuring carbon dioxide uptake rate.
Nitrifier growth parameters--the maximum growth rate (microAmax) and yield (YA)--were estimated by measuring the rate of carbon dioxide uptake and additional rates of oxygen uptake and ammonia (or nitrite) use. Batch tests in a combined titrimetric and offgas analyzer with enriched Nitrobacter and Nitrosomonas cultures and an activated sludge sample were performed. The measured microAmax values...
متن کاملPhotosynthetic path of carbon dioxide in spinach and corn leaves.
The primary route of COn incorporation in C-4 plants (corn) has been formulated to be fi-carboxylation catalyzed by phosphoenolpyruvate carboxylase, while in C-3 plants (spinach) COZ enters the carboxyl carbon of glycerate 3-phosphate after reacting with ribulose 1,5-diphosphate. Detached leaf tissues of spinach and corn were compared with respect to their fixation of CO* in the dark or in the ...
متن کاملPhotosynthetic acclimation to rising atmospheric carbon dioxide concentration.
With rising level of CO2 in the atmosphere plants are expected to be exposed to higher concentration of CO2. Since, CO2 is a substrate limiting photosynthesis particularly in C3 plants in the present atmosphere, the impact of elevated CO2 would depend mainly on how photosynthesis acclimates or adjusts to the long term elevated level of CO2. Photosynthetic acclimation is a change in photosynthet...
متن کاملA simple carbon dioxide injection system for photosynthetic studies.
A simple carbon dioxide injection system has been developed for the maintenance of CO(2) concentrations in semiclosed cuvette systems suitable for photosynthesis and gaseous pollutant studies. The device injects small volumes of pure carbon dioxide into the cuvette in response to a signal from an infrared gas analyzer.
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 1994
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.119.3.486