Solé M, Rius N, Francia A, Lorén J G
Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Spain.
Lett Appl Microbiol. 1994 Nov;19(5):341-4. doi: 10.1111/j.1472-765x.1994.tb00470.x.
The synthesis of prodigiosin by non-proliferating cells of Serratia marcescens was examined at various pH values between 5.5 and 9.5. During incubation in unbuffered medium, pH changed and prodigiosin production was similar regardless of the initial pH. Variations in pigment production were noted when buffers were employed in cultures of non-proliferating cells. The optimum pH for prodigiosin production was 8.0-8.5. Proline oxidase was also measured. The results suggest that the effect of pH may be related to the amount of proline which can be incorporated into prodigiosin.
在5.5至9.5的不同pH值下，研究了粘质沙雷氏菌非增殖细胞中灵菌红素的合成情况。在无缓冲培养基中培养期间，pH发生变化，无论初始pH如何，灵菌红素的产量相似。当在非增殖细胞培养物中使用缓冲剂时，色素产量出现变化。灵菌红素产生的最适pH为8.0 - 8.5。还测定了脯氨酸氧化酶。结果表明，pH的影响可能与可掺入灵菌红素中的脯氨酸量有关。
