25 We have a limited understanding of the consequences of variations in microbial biodiversity on ocean ecosystem functioning and global biogeochemical cycles. A core process is macronutrient uptake by microorganisms, as the uptake of nutrients controls ocean CO2 fixation rates in many regions. Here, we ask if variations in ocean phytoplankton biodiversity lead to novel functional relationships...

A widespread perception is that carnivores are limited by the amount of prey that can be captured rather than their nutritional quality, and thus have no need to regulate macronutrient balance. Contrary to this view, recent laboratory studies show macronutrient-specific food selection by both invertebrate and vertebrate predators, and in some cases also associated performance benefits. The ques...

At the West Antarctic Peninsula (WAP), continued atmospheric and oceanic warming is causing significant physical biogeochemical changes to glaciers marine environment. We compare sediment sources drivers of macronutrient distributions at two bays along WAP during austral summer 2020, using radioactive radium stable oxygen isotopes trace sedimentary influences quantify different freshwater input...

High N depositions of past decades brought changes to European forests including impacts on forest soil nutrition status. However, the ecosystem responses declining atmospheric inputs or moderate attracted only less attention so far. Our study investigated macronutrient (N, S, Ca2+, Mg2+, K+) pools and fluxes at conversion sites over 80 years old in Central Germany with beech (so-called “Green ...

Chloride (Cl(-)) is a micronutrient that accumulates to macronutrient levels since it is normally available in nature and actively taken up by higher plants. Besides a role as an unspecific cell osmoticum, no clear biological roles have been explicitly associated with Cl(-) when accumulated to macronutrient concentrations. To address this question, the glycophyte tobacco (Nicotiana tabacum L. v...

Horticultural substrates should promote seed germination and seedling emergence. The value of the SPAD index was significantly influenced by type substrate. had a beneficial effect on plant height in comparison with control Brassica plants grown used experiment compact growth habit, which is desirable trait production. In general, macronutrient uptake differed various substrates. Significant di...

Phosphorus (P) is a major macronutrient for plant health and development. The available form of P is generally low in the rhizosphere even in fertile soils. A major proportion of applied phosphate (Pi) fertilizers in the soil become fixed into insoluble, unavailable forms, which restricts crop production throughout the world. Roots possess two distinct modes of P uptake from the soil, direct an...

A number of root and root hair traits have been proposed as important for nutrient acquisition. However, there is still a need for knowledge on which traits are most important in determining macro- and micronutrient uptake at low soil fertility. This study investigated the variations in root growth vigor and root hair length (RHL) and density (RHD) among spring wheat genotypes and their relatio...