Potassium (K) is an important plant macronutrient that has various functions throughout the whole plant over its entire life span. Cytokinins (CKs) are known to regulate macronutrient homeostasis by controlling the expression of nitrate, phosphate and sulfate transporters. Although several studies have described how CKs signal deficiencies for some macronutrients, the roles of CKs in K signalin...

Abstract. Phosphorus (P) is an essential macronutrient for plant growth and one of the least available nutrients in soil. P limitation often a major constraint globally. Although addition experiments have been carried out to study long-term effects on yield, data seasonal variation leaf-level photosynthesis are scarce. Arbuscular mycorrhizal fungi (AMF) can be importance nutrient uptake, AMF ma...

Epidemiological evidence indicates that poor early growth is associated with increased susceptibility to visceral obesity, insulin resistance and associated diseases in adulthood. Studies in experimental animals have demonstrated a robust association between nutrient imbalance during foetal life and disease prevalence in their later life specially of those involving macronutrient metabolism. Th...

Forslund, Anders H., Antoine E. El-Khoury, Roger M. Olsson, Anders M. Sjödin, Leif Hambraeus, and Vernon R. Young. Effect of protein intake and physical activity on 24-h pattern and rate of macronutrient utilization. Am. J. Physiol. 276 (Endocrinol. Metab. 39): E964–E976, 1999.— Effects of moderate physical activity (90 min at 45–50% of maximal O2 uptake 2 times daily) and ‘‘high’’ (2.5 g prote...

K(+) is an essential macronutrient for plants. It is acquired by specific uptake systems located in roots. Although the concentrations of K(+) in the soil solution are widely variable, K(+) nutrition is secured by uptake systems that exhibit different affinities for K(+). Two main systems have been described for root K(+) uptake in several species: the high-affinity HAK5-like transporter and th...

Abstract We investigate the "macronutrient-access hypothesis", which states that balance between stoichiometric macronutrient demand and accessible macronutrients controls nutrient assimilation by aquatic heterotrophs. Within this hypothesis, we consider bioavailable dissolved organic carbon (bDOC), reactive nitrogen (N) phosphorus (P) to be heterotrophic assimilation. Here, N P are sums of ino...

We present a geometric model for examining the macronutrient contributions of insects in the diets of pre-agricultural humans, and relate the findings to some contemporary societies that regularly eat insects. The model integrates published data on the macronutrient composition of insects and other foods in the diets of humans, recommended human macronutrient intakes, and estimated macronutrien...

We present a geometric model for examining the macronutrient contributions of insects in the diets of pre-agricultural humans, and relate the findings to some contemporary societies that regularly eat insects. The model integrates published data on the macronutrient composition of insects and other foods in the diets of humans, recommended human macronutrient intakes, and estimated macronutrien...