发芽生菜种子的食物利用模式。
Patterns of food utilization by the germinating lettuce seeds.
作者信息
Park W M, Chen S S
机构信息
Department of Biological Sciences, University of Illinois at Chicago Circle, Chicago, Illinois 60680.
出版信息
Plant Physiol. 1974 Jan;53(1):64-6. doi: 10.1104/pp.53.1.64.
Abstract
The embryo excised from seed of Grand Rapids lettuce (Lactuca sativa L.) can be cultured in distilled water. Complete digestion of the endosperm and transfer of nutrients from the endosperm to the embryo occur in the germinating seed with fat as the source of food. The fat is utilized for respiration, synthesis of amino acids, and to a degree, converted to sucrose. (14)C-Glucose administered to the seed is quickly converted to sucrose in the endosperm and translocated to the embryo. Radioactivity associated with the glucose remains predominantly in the carbohydrate fraction, and much of it is incorporated into what is believed to be cell wall polysaccharides. Relatively little isotope is distributed in the amino or organic acids.
摘要
从大急流城生菜（Lactuca sativa L.）种子中切下的胚可以在蒸馏水中培养。在发芽种子中，胚乳会完全消化，营养物质从胚乳转移到胚，脂肪作为食物来源。脂肪用于呼吸作用、氨基酸合成，并且在一定程度上会转化为蔗糖。给予种子的(14)C -葡萄糖在胚乳中迅速转化为蔗糖，并转运到胚中。与葡萄糖相关的放射性主要保留在碳水化合物部分，其中大部分被整合到被认为是细胞壁多糖的物质中。相对较少的同位素分布在氨基酸或有机酸中。
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Patterns of food utilization by the germinating lettuce seeds.发芽生菜种子的食物利用模式。
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引用本文的文献
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An enzyme to degrade lettuce endosperm cell walls. Appearance of a mannanase following phytochrome- and gibberellin-induced germination.一种能够降解生菜胚乳细胞壁的酶。在赤霉素和光敏素诱导萌发后出现甘露聚糖酶。
Planta. 1976 Jan;130(2):189-96. doi: 10.1007/BF00384419.
2
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3
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4
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Plant Physiol. 1972 Jun;49(6):869-72. doi: 10.1104/pp.49.6.869.
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