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Arable soils are extremely heterogeneous in spatial nutrient distribution. It is well documented that lateral roots (LRs) proliferate in nitrate-rich patch. Yet less information is available as to which genes are involved in this process, in particular in cereals. To understand the molecular mechanism for local nitrate-induced LR growth in maize (Zea mays L.), we analyzed the gene expression profiling...
In order to investigate the possible involvement of nitrate in regulating free-putrescine accumulation induced by ammonium nutrition, we studied the plant concentration of free, no-covalently conjugated and covalently conjugated polyamines associated with nitrogen nutrition involving different nitrogen forms (ammonium and nitrate) in two plant species: wheat and pepper grown in saline and no saline...
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