Utilization by tomatoes of iron mediated by a siderophore produced by rhizopus arrhizus

M. Shenker, Y. Chen, I. Oliver, M. Helmann, Y. Hadar

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

Rhizonus arrhizus was found to produce a novel siderophore named raphorin (Ra) when grown under Fe deficiency. Partially purified Fe-Ra was found to alleviate Fe deficiency when applied to tomato plants grown in nutrient solutions buffered by either CaC03 (pH 7.3) or HEPES (pH 7). Iron (55Fe) uptake rate by plants mediated by Ra, and translocation rate to the shoot, was almost as high as from 55FeEDDHA. It has been concluded the Fe-Ra is a most efficient Fe source for plants when compared to other microbial sidero-phores.

Original languageAmerican English
Pages (from-to)2173-2182
Number of pages10
JournalJournal of Plant Nutrition
Volume15
Issue number10
DOIs
StatePublished - 1 Oct 1992
Externally publishedYes

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