Response in soil of Cupriavidus necator and other copper-resistant bacterial predators of bacteria to addition of water, soluble nutrients, various bacterial species, or Bacillus thuringiensis spores and crystals

Journal Article · Thu Sep 01 00:00:00 EDT 1988 · Applied and Environmental Microbiology; (USA)

OSTI ID:5042976

Casida, Jr, L E ^[1]

---

1. Pennsylvania State Univ., University Park (USA)

Soil was incubated with various species of bacteria, Bacillus subtilis, or Bacillus thuringiensis spores and crystals. These were added to serve as potential prey for indigenous, copper-resistant, nonobligate bacterial predators of bacteria in the soil. Alternatively, the soil was incubated with soluble nutrients or water only to cause potential indigenous prey cells to multiply so the predator cells would multiply. All of these incubation procedures caused excessive multiplication of some gram-negative bacteria in soil. Even greater multiplication, however, often occurred for certain copper-resistant bacterial predators of bacteria that made up a part of the gram-negative response. Incubation of the soil with copper per se did not give these responses. In most cases, the copper-resistant bacteria that responded were Cupriavidus necator, bacterial predator L-2, or previously unknown bacteria that resembled them. The results suggest that, under various conditions of soil incubation, gram-negative bacterial predators of bacteria multiply and that several copper-resistant types among them can be detected, counted, and isolated by plating dilutions of the soil onto media containing excess copper.

• OSTI ID: 5042976
• Journal Information: Applied and Environmental Microbiology; (USA), Vol. 54:9; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACTERIA
PREDATOR-PREY INTERACTIONS
COPPER
BIOLOGICAL EFFECTS
BACILLUS
BACTERIAL SPORES
GROWTH
NUTRITION
SOILS
TOLERANCE
ELEMENTS
METALS
MICROORGANISMS
SPORES
TRANSITION ELEMENTS
560300* - Chemicals Metabolism & Toxicology