Elevated carbon dioxide exacerbates adverse effects of Mg deficiency in durum wheat
作者： Ozlem Yilmaz , Kadriye Kahraman , Levent Ozturk
DOI: 10.1007/S11104-016-2979-X
关键词: Carbon dioxide 、 Biomass partitioning 、 Carbohydrate metabolism 、 Photosynthesis 、 Acclimatization 、 Chemistry 、 Animal science 、 Agronomy 、 Plant physiology 、 Carbohydrate 、 Shoot
摘要: Elevated carbon dioxide (CO2) and magnesium (Mg) deficiency have contrasting influences on plant growth performance, but disrupt carbohydrate metabolism in a similar manner. This study was aimed at characterizing interactive effects of elevated CO2 Mg nutrition metabolism, sink strength biomass partitioning. Durum wheat cultured climate chambers with ambient (398 μmol mol−1 air) or (700 μmol mol−1 adequate (1000 μM) low (75 μM) supply nutrient solution. Biomass production partitioning, tissue concentrations, photosynthetic performance status leaves roots were determined. Low-Mg plants responded to decrease rather than enhancement especially roots. In low-Mg inhibition root partitioning towards shoots enhanced by CO2. increased photosynthesis rate adequate-Mg plants, not plants. Leaf concentration 2 fold 3 CO2, suggesting that decreased transport from source tissues. exacerbated adverse inadequate growth, durum wheat. Adequate important for maintaining efficient carbohydrates thus prevent an early acclimation
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