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Use of nitrilotriacetic acid (NTA) byPseudomonasspecies through iron metabolism

✍ Scribed by Jean-Marie Meyer; Dany Hohnadel

Book ID
104651685
Publisher
Springer
Year
1992
Tongue
English
Weight
573 KB
Volume
37
Category
Article
ISSN
1432-0614

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✦ Synopsis

Nitrilotriacetic acid (NTA), when added to solid or liquid media, stimulated the growth of Pseudo- monas strains, whereas other synthetic iron-chelators, such as ethylenediaminediacetic acid, ethylenediaminetetraacetic acid, ethylenediaminedihydroxyphenyl acetic acid or ethylene glycol-bis-(fl-aminoethyl ether)-tetraacetic acid, resulted in concentration-dependent growth inhibition. Experimental data such as stimulation of growth in iron-poor media, inhibitory effect on siderophore biosynthesis, promotion of iron-uptake by NTA, together with the inability of the Pseudomonas strains to use NTA as a carbon a n d / o r a nitrogen source, demonstrated that NTA favours the bacterial growth of Pseudornonas through its scavenging properties for iron.

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