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245 1 0 _aCarbohydrate metabolism in the developing endosperm of rice grains
490 0 _vPlant & Cell Physiology, 30(6), p.833-839, 1989
520 3 _aThe metabolism of carbohydrates in developing rice endosperm was characterized by a comparison of levels of activities of 33 major enzymes between the endosperm and green leaves of rice. Activities of ADPglucose pyrophosphorylase, starch synthase and branching enzyme (Q-enzyme), compared on the basis of soluble protein content, were markedly higher in endosperm than in green leaves. The high levelsof Q-enzyme may be responsible for the efficientproduction of starch in the rice endosperm. The GIP is converted to starch by the concerted reactions of ADPglucose pyrophosphorylase, starch synthase and Q-enzyme.measurement of levelsof metabolic intermediates and the localization of key enzymes in isolated amyloplasts from rice endosperm support the view that sucrose is metabolized in the cytoplasm via the pathway: sucrose-+UDPglucose-+hexose-P-+FBP -+triose-P. Triose-P then enters the amyloplast, where it is converted to G1P via FBP and, finally,
650 1 4 _aADPGLUCOSE PYROPHOSPHORYLASE
650 1 4 _aAMYLOPLAST
650 1 4 _aENDOSPERM
650 1 4 _aQ-ENZYME
650 1 4 _aRICE TORYZA SATIVA L.)
650 1 4 _aSTARCH METABOLISM
700 1 2 _aNakamura, Y.
700 1 2 _aYuki, K.
700 1 2 _aPark, S.-Y.
700 1 2 _aOhya, T.
856 4 0 _uhttps://drive.google.com/file/d/1wdqVGwkGCdH9CmPUdF4vwWcx64vYijO3/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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