产气气杆菌分泌的盘基网柄菌孢子萌发促进剂。

Spore germination promoter of Dictyostelium discoideum excreted by Aerobacter aerogenes.

作者信息

Hashimoto Y, Tanaka Y, Yamada T

出版信息

J Cell Sci. 1976 Jul;21(2):261-71. doi: 10.1242/jcs.21.2.261.

DOI:10.1242/jcs.21.2.261

Abstract

The nutrient medium in which Aerobacter aerogenes was grown, contains a spore germination promoter (SGP) for the cellular slime mould Dictyostelium discoideum. SGP can cuase synchronous spore germination in a short time, and triggers the germination process in just a few minutes. Germination-promoting capacity of SGP decreases as it comes in contact with increasing number of spores. When spores activated by SGP are stored at 4 degrees C, they gradually return to the dormant state. SGP is comparatively heat-stable, but is unstable at pH above 10 or under 3.

摘要

产气气杆菌生长所用的营养培养基含有一种用于细胞黏菌盘基网柄菌的孢子萌发促进剂（SGP）。SGP能在短时间内引起同步孢子萌发，并在几分钟内触发萌发过程。随着与越来越多的孢子接触，SGP的萌发促进能力会下降。当由SGP激活的孢子储存在4摄氏度时，它们会逐渐恢复到休眠状态。SGP相对耐热，但在pH值高于10或低于3时不稳定。