Wenzel C L, Ashford A E, Summerell B A
Royal Botanic Gardens, Mrs Macquaries Rd, N.S.W. 2000, Australia.
School of Biological Sciences, University of New South Wales, Kensington, N.S.W. 2000, Australia.
New Phytol. 1994 Nov;128(3):487-496. doi: 10.1111/j.1469-8137.1994.tb02995.x.
Bacteria isolated from proteoid roots and non-proteoid lateral roots of Telopea speciosissima (Sm.) R.Br. seedlings were able to acidify the medium and solubilize calcium phosphates when grown in culture in the presence of ammonium salts and an appropriate carbon source. In general this activity was not detected when NO was substituted for NH , and it is proposed that protons were secreted in exchange for ammonium ions. Cation exchange between these protons and calcium in the medium is a possible cause of the calcium phosphate solubilizing activity. The relevance of these data to phosphate-solubilizing activity in natural environments is discussed.
从壮丽特洛皮桉（Telopea speciosissima (Sm.) R.Br.）幼苗的排根和非排根侧根中分离出的细菌，在铵盐和合适碳源存在的情况下于培养基中培养时，能够使培养基酸化并溶解磷酸钙。一般来说，当用硝酸盐替代铵盐时未检测到这种活性，推测质子的分泌是为了交换铵离子。这些质子与培养基中的钙之间的阳离子交换可能是磷酸钙溶解活性的一个原因。讨论了这些数据与自然环境中磷溶解活性的相关性。
