Ir54

Control Hypoxia

136 ± 7a 126 ± 14a

58 ± 5b 45 ± 2c

89 ± 5a 87 ± 7a

13 ± 2b 9 ± 1c

181 ± 30b 171±53b

243±60ab 302 ± 19a

Data of each parameter within each genotype followed by the same letter are not significantly different (P < 0.05) (Hajiboland 2000)

Data of each parameter within each genotype followed by the same letter are not significantly different (P < 0.05) (Hajiboland 2000)

under hypoxic conditions. Content of O2" and MDA decreased in the lowland rice genotype due to hypoxia while increased significantly in the upland genotype in both low- and adequately-Zn supplied plants (Hajiboland and Beiramzadeh 2008).

taken up by root cells through the action of Yellow Stripe 1 (YS1) proteins (Curie and Briat 2003). In contrast to strategies at the root level, our knowledge is much more limited on the mechanisms to cope with Fe deficiency acting in the aboveground part of plants.

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