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影响盘基网柄菌中热诱导孢子萌发速率的因素。

Factors affecting the rate of heat-induced spore germination in Dictyostelium discoideum.

作者信息

Cotter D A, Raper K B

出版信息

J Bacteriol. 1968 Jul;96(1):86-92. doi: 10.1128/jb.96.1.86-92.1968.

DOI:10.1128/jb.96.1.86-92.1968
PMID:4874316
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC252256/
Abstract

Washed spores of Dictyostelium discoideum, strains NC-4H, NC-4D, and V-12, germinated rapidly after being heat shocked at or near 45.0 C for 30 min. Cultures of the slime molds were grown in association with Escherichia coli B/r as the host bacterium; spores taken from plates of synthetic medium had a higher final germination value than spores from complex medium containing peptone and yeast extract. Young spores germinated more rapidly than older spores. Optimal germination occurred between pH 6.0 and 7.0, and, of the buffers tested, potassium phosphate allowed the most rapid germination. After heat shocking, spores were diluted into fresh oxygenated buffer to provide enough oxygen for completion of germination. Germination occurred most rapidly between incubation temperatures of 22 and 25 C.

摘要

盘基网柄菌(Dictyostelium discoideum)的洗涤孢子,菌株NC - 4H、NC - 4D和V - 12,在45.0℃或接近该温度下热激30分钟后迅速萌发。黏菌培养物与大肠杆菌B/r作为宿主细菌共同培养;从合成培养基平板上获取的孢子比含有蛋白胨和酵母提取物的复合培养基上的孢子具有更高的最终萌发值。年轻孢子比年老孢子萌发更快。在pH 6.0至7.0之间发生最佳萌发,并且在所测试的缓冲液中,磷酸钾能使孢子萌发最快。热激后,将孢子稀释到新鲜的含氧缓冲液中,以提供足够的氧气来完成萌发。在22至25℃的培养温度之间萌发最为迅速。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7908/252256/fcb2e4cb4072/jbacter00394-0124-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7908/252256/fcb2e4cb4072/jbacter00394-0124-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7908/252256/fcb2e4cb4072/jbacter00394-0124-a.jpg

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本文引用的文献

1
Incorporation of 3H-uridine into RNA during cellular slime mould development.
J Gen Microbiol. 1967 Jan;46(1):59-64. doi: 10.1099/00221287-46-1-59.
2
Spore germination in Dictyostelium discoideum.盘基网柄菌中的孢子萌发
Proc Natl Acad Sci U S A. 1966 Sep;56(3):880-7. doi: 10.1073/pnas.56.3.880.
J Bacteriol. 1969 Apr;98(1):321-2. doi: 10.1128/jb.98.1.321-322.1969.
4
Spore germination in strains of Dictyostelium discoideum and other members of the Dictyosteliaceae.盘基网柄菌菌株及盘基网柄菌科其他成员中的孢子萌发。
J Bacteriol. 1968 Nov;96(5):1690-5. doi: 10.1128/jb.96.5.1690-1695.1968.
5
Properties of germinating spores of Dictyostelium discoideum.盘基网柄菌萌发孢子的特性
J Bacteriol. 1968 Nov;96(5):1680-9. doi: 10.1128/jb.96.5.1680-1689.1968.
6
Ultrastructural changes during germination of Dictyostelium discoideum spores.盘基网柄菌孢子萌发过程中的超微结构变化。
J Bacteriol. 1969 Nov;100(2):1020-6. doi: 10.1128/jb.100.2.1020-1026.1969.
7
Gamma-ray-induced spore germination of Dictyostelium discoideum.γ射线诱导的盘基网柄菌孢子萌发
J Bacteriol. 1970 Nov;104(2):1022-3. doi: 10.1128/jb.104.2.1022-1023.1970.
8
Scanning electron microscopy of spore germination in Dictyostelium discoideum.盘基网柄菌孢子萌发的扫描电子显微镜观察
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9
Identification of a self-inhibitor from spores of Dictyostelium discoideum.从盘基网柄菌孢子中鉴定出一种自我抑制剂。
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Arch Microbiol. 1975 Apr 7;103(2):163-8. doi: 10.1007/BF00436344.