Dynamics of the Waxy Gene in Maize. I. the Carbohydrate Reserves in Endosperm and Pollen.
نویسندگان
چکیده
PAGE INTRODUCTION. ...... .......................................................... 163 Chemical composition of pollen and seed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Preparation of starches in pure form from endosperm and pollen. ....................... 171 Form of the starch grains from endosperm and pollen.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Color reactions of the endosperm and pollen starches with iodine. ....................... 177 Composition of the starch grain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
منابع مشابه
Effect of the Waxy Gene in Maize Pollen,-a Reply to Criticisms.
It was independently discovered and coincidentally reported by DEMEREC (1924) and by BRINK and MACGILLIVRAY (1924) that maize pollen grains carrying the waxy gene give a unique reaction with the iodine-potassium-iodide solution commonly employed in detecting starch. LONGLEY (1924) has also reported this phenomenon. In a recent paper, KIESSELBACH and PETERSEN (1925) question the validity of our...
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Waxy wheat (Triticum aestivum L.) lacks the waxy protein, which is also known as granule-bound starch synthase I (GBSSI). The starch granules of waxy wheat endosperm and pollen do not contain amylose and therefore stain red-brown with iodine. However, we observed that starch from pericarp tissue of waxy wheat stained blue-black and contained amylose. Significantly higher starch synthase activit...
متن کاملThe Waxy Locus in Maize. I. Intralocus Recombination Frequency Estimates by Pollen and by Conventional Analyses.
T H E waxy (wx) locus in maize conditions the type of starch which is synthesized in the triploid endosperm and in the haploid pollen grain. Further, the phenotype of a pollen grain is determined by its own genotype and not by that of the plant which produces the pollen grain (BRINK and MACGILLIVRAY 1924) and (DEMEREC 1924). This makes it possible to use the pollen grain as the unit of observat...
متن کاملAn Enzyme Difference Associated with the Waxy Gene in Maize.
The amylase of waxy and non-waxy seeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573 The amylase of waxy and non-waxy pollen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 577 Resultsof tests with S, W, and S, W, pollen extracts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 579 Results of tests wit...
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ورودعنوان ژورنال:
- Genetics
دوره 11 2 شماره
صفحات -
تاریخ انتشار 2003