Popham D L, Setlow P
Department of Biochemistry, University of Connecticut Health Center, Farmington 06030-3305.
J Bacteriol. 1993 May;175(9):2767-9. doi: 10.1128/jb.175.9.2767-2769.1993.
Determination by amino acid analyses of the percentage of diaminopimelic acid in the spore cortex of Bacillus megaterium and Bacillus subtilis which is involved in interpeptide cross-links gave values of 31 to 37%. This finding supports the idea that the cortex volume could undergo significant changes in response to changes in pH or ionic strength and could thus play an active role in reducing the water content of the spore protoplast during sporulation.
通过氨基酸分析测定巨大芽孢杆菌和枯草芽孢杆菌孢子皮层中参与肽间交联的二氨基庚二酸百分比，得到的值为31%至37%。这一发现支持了这样一种观点，即皮层体积可能会随着pH值或离子强度的变化而发生显著变化，因此在孢子形成过程中可能在降低孢子原生质体含水量方面发挥积极作用。
