Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA.
Science. 2011 Jun 3;332(6034):1149; author reply 1149. doi: 10.1126/science.1201943. Epub 2011 May 27.
Wolfe-Simon et al. (Research Articles, 3 June 2011, p. 1163; published online 2 December 2010) reported that the bacterial strain GFAJ-1 can grow by using arsenic (As) instead of phosphorus (P), noting that the P content in bacteria grown in +As/-P culture medium was far below the quantity needed to support growth. However, low P content is a common phenotype across a broad range of environmental bacteria that experience P limitation.
沃尔夫-西蒙等人(研究文章,2011 年 6 月 3 日,第 1163 页;在线发表于 2010 年 12 月 2 日)报告称,细菌 GFAJ-1 可以利用砷(As)而不是磷(P)生长,并指出在 +As/-P 培养基中生长的细菌的 P 含量远低于支持生长所需的量。然而,低 P 含量是在经历 P 限制的广泛环境细菌中常见的表型。