Carbon isotope ratios of amylose, amylopectin and mutant starches
نویسندگان
چکیده
منابع مشابه
Patterns and controls of lotic algal stable carbon isotope ratios
Spatial and temporal variations in stable carbon isotope ratios (i.e., 813C) of primary producers are common but poorly understood features of isotopic characterizations of aquatic food webs. I investigated factors that control t13C of algae (concentration and 613C of inorganic carbon, algal fractionation, and growth rates) in riffle habitats across a gradient in stream size and productivity in...
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The quantitative determination of amylose by means of its color reaction with iodine has been practiced for many years. Several procedures have been described. but there are many reports in the literature about the inconsistency. inaccuracy. and lack of reproducibility of these procedures’X. The frequently employed methods of McCready and Hassid’. Wu ef ~1.~. Wolf et ~1.~. or Williams et nI.h u...
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Background and Objectives: As chemical methods are commonly used to modify the starch properties, in this study, the influence of chemical modification using POCl3 on the rice starch function was evaluated. Materials and Methods: Rice starch was isolated by alkaline extraction of the proteins and cross-linked rice starches were prepared from reactions between native rice starch (low and high a...
متن کاملContinental-Scale Distributions of Vegetation Stable Carbon Isotope Ratios
All terrestrial higher plants preferentially assimilate CO 2 relative to CO 2 during photosynthesis as a result of physical and biological isotope fractionation processes, with much larger overall C fractionation by plants using the C 3 photosynthetic pathway (approximate range of 14–27‰) compared to plants using the C 4 pathway (approximate range of 3–6‰). Fractionation against CO 2 in both C ...
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Plastidial disproportionating enzyme1 (DPE1), an α-1,4-d-glucanotransferase, has been thought to be involved in storage starch synthesis in cereal crops. However, the precise function of DPE1 remains to be established. We present here the functional identification of DPE1 in storage starch synthesis in rice (Oryza sativa) by endosperm-specific gene overexpression and suppression. DPE1 overexpre...
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ژورنال
عنوان ژورنال: Phytochemistry
سال: 1999
ISSN: 0031-9422
DOI: 10.1016/s0031-9422(99)00271-x