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Key message The expression of drought responsive genes were enhanced by N application and they contributed to drought acclimation. Abstract The interactive effects of water and nutrient are crucial for plants. The aim of this study was to elucidate how nitrogen (N) status influence drought acclimation of Populus. A two-factorial design consisting of two N levels (adequate-N and low-N) and two watering...
Background Drought and nitrogen (N) deficiency are two major limiting factors for forest productivity in many ecosystems. Elucidating the mechanisms underlying the influence of soil N availability on drought responses of tree species is crucial to improve tree growth under drought. Results The root proliferation under drought was enhanced by adequate N application. Vessel frequency in xylem increased...
Drought stress is one of the main environmental stresses that have effect on plant growth and development. Spermidine (SPD) plays an important role in the defense responses to drought stress in plants. In this study, we investigated the effects of exogenous SPD on plant growth, net photosynthetic rate (Pn), antioxidant enzyme activities, chlorophyll, malondialdehyde (MDA) and phytohormone contents...
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