The regulatory mechanism of nitrate-mediated iron deficiency
response is conserved in Arabidopsis thaliana
In order to determine whether nitrate-regulated iron deficiency response
is conserved in different species, we conducted a similar iron
deficiency experiment in Arabidopsis . After 7 days of treatment,
the new Arabidopsis leaves were severely chlorotic under the
HN-Fe treatment (Fig. 8a, b), while only slight chlorosis was observed
under LN-Fe treatment, with a higher chlorophyll content than HN-Fe
treatment (Fig. 8a, b, c). Additionally, we detected the total Fe
content of shoots and found that the total Fe content was higher under
LN treatment than that under HN treatment (Fig. 8d), which was
consistent with the findings in ‘Pinyiensis ’. The above results
suggested that nitrate-mediated iron deficiency response is conserved inArabidopsis , and it may be also conserved in other plant species.