在无菌培养条件下生长的黏菌盘基网柄菌的变形体分化过程中，其细胞内的酶合成情况。
Enzyme synthesis in the cellular slime mould Dictyostelium discoideum during the differentiation of myxamoebae grown axenically.
作者信息
Quance J, Ashworth J M
出版信息
Biochem J. 1972 Feb;126(3):609-15. doi: 10.1042/bj1260609.
Abstract
- Myxamoebae of the cellular slime mould Dictyostelium discoideum Ax-2 were grown on different media, and were harvested either in the stationary or exponential phases of the growth cycle to yield samples of myxamoebae differing in enzymic composition. 2. Morphogenesis and cell differentiation phenomena in D. discoideum appear to be similar in myxamoebae grown and harvested under different conditions. 3. The specific activity of the enzymes beta-N-acetylglucosaminidase, acid phosphatase, alpha-mannosidase, beta-glucosidase and alkaline phosphatase have been determined during cell differentiation of myxamoebae grown and harvested under different conditions. 4. The pattern of synthesis of these enzymes, all of which have been claimed to be part of the ;developmental programme', either remains unaffected despite the origin of the myxamoebae (alkaline phosphatase) or is qualitatively similar but quantitatively affected (acid phosphatase, beta-glucosidase) or is both qualitatively and quantitatively affected by changes in the myxamoebae (alpha-mannosidase, beta-N-acetylglucosaminidase). 5. The implications of these results for the concept of a ;developmental programme' are discussed.
摘要
- 将细胞黏菌盘基网柄菌Ax - 2的变形体在不同培养基上培养，并在生长周期的稳定期或指数期收获，以获得酶组成不同的变形体样本。2. 在不同条件下生长和收获的盘基网柄菌变形体中，其形态发生和细胞分化现象似乎相似。3. 已测定了在不同条件下生长和收获的变形体细胞分化过程中β - N - 乙酰氨基葡萄糖苷酶、酸性磷酸酶、α - 甘露糖苷酶、β - 葡萄糖苷酶和碱性磷酸酶的比活性。4. 这些酶的合成模式，据称它们都是“发育程序”的一部分，要么无论变形体的来源如何都不受影响（碱性磷酸酶），要么在质量上相似但在数量上受影响（酸性磷酸酶、β - 葡萄糖苷酶），要么在质量和数量上都受到变形体变化的影响（α - 甘露糖苷酶、β - N - 乙酰氨基葡萄糖苷酶）。5. 讨论了这些结果对“发育程序”概念的影响。
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本文引用的文献
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Metabolism of major cell components during slime mold morphogenesis.黏菌形态发生过程中主要细胞成分的代谢
Biochim Biophys Acta. 1961 Oct 28;53:285-93. doi: 10.1016/0006-3002(61)90441-3.
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Genetic regulatory mechanisms in the synthesis of proteins.蛋白质合成中的遗传调控机制。
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Temperature-sensitive mutants of Dictyostelium discoideum.盘基网柄菌的温度敏感突变体。
J Bacteriol. 1969 Jul;99(1):65-9. doi: 10.1128/jb.99.1.65-69.1969.
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Acetylglucosaminidase, an early enzyme in the development of Dictyostelium discoideum.乙酰葡糖胺酶，盘基网柄菌发育过程中的一种早期酶。
J Bacteriol. 1969 Mar;97(3):1149-54. doi: 10.1128/jb.97.3.1149-1154.1969.
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Metabolism of the cellular slime mould Dictyostelium discoideum grown in axenic culture.在无菌培养条件下生长的细胞黏菌盘基网柄菌的代谢。
Biochem J. 1970 Sep;119(2):175-82. doi: 10.1042/bj1190175.
7
Growth of myxameobae of the cellular slime mould Dictyostelium discoideum in axenic culture.细胞黏菌盘基网柄菌的黏变形体在无菌培养中的生长。
Biochem J. 1970 Sep;119(2):171-4. doi: 10.1042/bj1190171.
8
The isolation and characterization of lysosomal particles from myxamoebae of the cellular slime mould Dictyostelium discoideum.从细胞黏菌盘基网柄菌的变形体中分离和鉴定溶酶体颗粒。
Biochem J. 1970 Jul;118(3):505-12. doi: 10.1042/bj1180505.
9
Regulation of enzyme synthesis by slime mold cell assemblies embarked upon alternative developmental programs.黏菌细胞集合体对酶合成的调控开启了不同的发育程序。
J Mol Biol. 1970 May 14;49(3):627-37. doi: 10.1016/0022-2836(70)90287-1.
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Developmental regulation of alpha-mannosidase in Dictyostelium discoideum.盘基网柄菌中α-甘露糖苷酶的发育调控
J Bacteriol. 1970 Aug;103(2):375-81. doi: 10.1128/jb.103.2.375-381.1970.
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