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Iron status in young Brassica napus leaves of Fe-deprived (0 μM Fe), Fe-deficient (5 μM Fe) and Fe-sufficient (50 μM Fe) plants: (A) iron concentration as determined by bipyridine extraction; (B) in situ localisation by Perl reagent. Vertical bars: mean ± SE (n = 6). Bars carrying different letters are significantly (95% Fisher LSD).
