Effects of nutrient concentration on the growth of soil bacteria
Effects of nutrient concentration on the growth of soil bacteria
复制标题
养分浓度对土壤细菌生长的影响
DOI：
10.1080/00380768.1984.10434704
复制
发表时间：
1984
影响因子：
2
通讯作者：
T. Hattori
中科院分区：
文献类型：
--
作者：
Y. Suwa;T. Hattori
将从土壤中分离的细菌在各种稀释度（NB、NB/10、NB/100、NB/1，000和NB/10，000）的常规营养肉汤上培养。根据获得的结果，将这些微生物按可识别生长的全浓度营养肉汤（NB）的稀释范围分为四组;仅在NB至NB/1，000范围内的培养基上显示出明显生长的微生物称为I型，在NB进一步稀释范围内的培养基上生长良好的微生物称为II型。在NB上生长不好的分离株中，仅在NB/10至NB/1，000范围内的培养基上生长的分离株被指定为III型，而在涉及进一步稀释的范围内的培养基上生长良好的分离株被指定为IV型。II型和IV型的一些分离株甚至在蒸馏水中也表现出明显的生长。它们被认为具有利用液体或空气中极少量物质的能力。结合这些结果，我们讨论了判别标准。
Bacteria isolated from soil were cultivated on conventional nutrient broth at various dilutions (NB, NB/10, NB/100, NB/1,000, and NB/10,000). Based on the results obtained these organisms were divided into four groups by the range of dilution of the full strength nutrient broth (NB) on which growth was recognized; those which showed appreciable growth only on media within a range from NB to NB/1,000 were referred to as type I and those which grew well on media of a range involving further dilutions of NB, to type II. Among the isolates which did not grow well on NB, those which grew only on media within a range from NB/10 to NB/1,000 were assigned to type III, and those which grew well on media of a range involving further dilutions, to type IV. Some isolates of types II and IV showed appreciable growth even in distilled water. They were considered to have an ability of utilizing very small amounts of substances in liquid or air. In connection with these results we discussed the criteria for the identific...