Allen M M, Hutchison F, Weathers P J
J Bacteriol. 1980 Feb;141(2):687-93. doi: 10.1128/jb.141.2.687-693.1980.
The effect of a number of conditions on the amount of cyanophycin granule polypeptide [multi-L-arginyl poly(L-aspartic acid)] formed in the unicellular cyanobacterium Aphanocapsa 6308 was determined. Light, CO2, sulfur, and phosphorus starvation as well as the addition of arginine to culture media increased the amount of cyanophycin granule polypeptide in cells when compared with that in cells grown under conditions optimal for growth. Nitrogen limitation and reduction of growth temperature to 30 degrees C decreased the amount of cyanophycin granule polypeptide on a dry-weight basis. Shift-up and shift-down experiments suggest cyanophycin granule polypeptide may be a reserve nitrogen polymer in Aphanocapsa 6308.
测定了多种条件对单细胞蓝藻聚球藻6308中蓝藻素颗粒多肽[多聚-L-精氨酰聚(L-天冬氨酸)]形成量的影响。与在最适宜生长条件下生长的细胞相比,光照、二氧化碳、硫和磷饥饿以及向培养基中添加精氨酸均增加了细胞中蓝藻素颗粒多肽的量。氮限制和将生长温度降至30℃会使蓝藻素颗粒多肽的干重含量降低。升温和降温实验表明,蓝藻素颗粒多肽可能是聚球藻6308中的一种储备氮聚合物。