Nitrifying bacteria - PowerPoint PPT Presentation

Loading...

PPT – Nitrifying bacteria PowerPoint presentation | free to download - id: eee34-OTFmY



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Nitrifying bacteria

Description:

Aerobe, usually motile. Optimum T = 20-30 C. Nitrosifying bacteria. Major bioenergetic pathway: ... Oxidation of NH3 to NO2- (via hydroxylamine) Reduction of ... – PowerPoint PPT presentation

Number of Views:1236
Avg rating:3.0/5.0
Slides: 15
Provided by: kevinr4
Learn more at: http://www.bama.ua.edu
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Nitrifying bacteria


1
Nitrifying bacteria
2
(No Transcript)
3
(No Transcript)
4
Nitrosomonas
Photo Stan Watson, Woods Hole Oceanographic Inst.
5
(No Transcript)
6
Nitrosomonas phylogeny
  • Class II Betaproteobacteria
  • Order II Hydrogenophilus
  • Genus I Hydrogenophilus
  • Genus II Thiobacillus
  • Order V Nitrosomonadales
  • Family I Nitrosomonadaceae
  • Genus I Nitrosomonas

7
Nitrosomonas europeae
  • Aerobe, usually motile
  • Optimum T 20-30C
  • Nitrosifying bacteria
  • Major bioenergetic pathway
  • Oxidation of NH3 to NO2- (via hydroxylamine)
  • Reduction of O2 to water (cyt oxidase)
  • Autotrophs use Calvin cycle
  • Can make carboxysomes
  • Grow slowly (or not at all)

8
(Luthra)
(Wargo)
9
(No Transcript)
10
Nitrobacter
11
Nitrobacter phylogeny
  • Class I Alphaproteobacteria
  • Order III Rhodobacterales
  • Order VI Rhizobiales
  • Family I Rhizobiaceae
  • Genus I Rhizobium (N2 fixer)
  • Genus II Agrobacterium (some can invade plants)
  • Family VII Bradyrhizobiaceae
  • Genus I Bradyrhizobium (N2 fixer)
  • Genus VI Nitrobacter
  • Genus IX Rhodopseudomonas
  • (Very heterogeneous groups, based purely on rRNA.)

12
Nitrobacter winogradskyi
  • Obligate aerobe
  • Optimum T 20-30C
  • Nitrifying bacteria
  • Major bioenergetic pathway
  • Oxidation of NO2- to NO3-
  • Reduction of O2 to water (cyt oxidase)
  • Alternate ways of making a living
  • Most species can grow chemoorganotrophically on
    acetate, pyruvate, and formate
  • Most can also respire anaerobically with NO3-
    (to NO2-, NO and N2O)
  • Autotrophs use Calvin cycle
  • Grow slowly

13
(No Transcript)
14
(No Transcript)
About PowerShow.com