Regulation of Leaf Photosynthesis Through Photosynthetic Source-Sink Balance in Soybean Plants
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منابع مشابه
Regulatory Mechanism of Photosynthesis that Depends on the Activation State of Rubisco under Sink Limitation
Knowledge of regulatory mechanism of plant photosynthesis under sink-limitation occurring under various environmental conditions is still insufficient. In the present study, two different degrees of sink-limitation were imposed on soybean plants by removing either half or all developing pods and after that, photosynthetic rate and various other characteristics were investigated in fully expande...
متن کاملEffects of Sink Removal on Photosynthesis and Senescence in Leaves of Soybean (Glycine max L.) Plants.
Photosynthetic rate, ribulose 1,5-bisphosphate carboxylase activity, specific leaf weight, and leaf concentrations of carbohydrates, proteins, chlorophyll, and inorganic phosphate were determined periodically from midbloom until maturity in leaves of soybean plants (Glycine max L., var. Hodgson) from which reproductive and vegetative sinks had been removed 32 hours before measurement, or contin...
متن کاملPlant sink-source relationships and carbon isotopic labeling techniques . Taher Barzegar* and Fatemhe Nekounam
The concept of source and sink strength is presently well-recognized and accepted by the scientific community as a pertinent approach describing the mechanisms of carbohydrate partitioning into the different and competing organs at a whole plant or canopy scales. Sink–source relationships have a clear role in the size of sink organs. Besides the effect on organ size, sink/source ratio might also...
متن کاملChanges in photosynthetic rates and gene expression of leaves during a source-sink perturbation in sugarcane.
BACKGROUND AND AIMS In crops other than sugarcane there is good evidence that the size and activity of carbon sinks influence source activity via sugar-related regulation of the enzymes of photosynthesis, an effect that is partly mediated through coarse regulation of gene expression. METHODS In the current study, leaf shading treatments were used to perturb the source-sink balance in 12-month...
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Silicon is a chemical element that has many positive effects on some qualitative and quantitative characteristics of many plant species such as ornamental plants. The aim of this research was to investigate the impact of silicon spray on growth and photosynthetic characteristics of chrysanthemum. This study was performed as a factorial completely randomized design with 2 factors: silicon source...
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