Search results for " Phosphorus"
showing 6 items of 76 documents
Molecular and agronomic responses to soil inoculation with plant-growth promoting rhizobacteria and arbuscular mycorrhizae in Triticum durum
2012
Plant-growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal (AM) fungi contribute to plant nutrient uptake by increasing the availability of nutrients and the root adsorbing surface. However, the molecular mechanisms of plant responses to these associations are still under-investigated. Gene expression analysis could lead to the identification of biomarkers usable to early select genotypes for an increased nutrient uptake efficiency. The main objective of this study was to determine the effects of these associations on plant total biomass and grain yield in durum wheat (cv. Anco Marzio). Secondly, we aimed to analyze the expression pattern of key genes involved in nutrient uptake…
Phosphororganische Verbindungen, 68. Darstellung und Eigenschaften von Tetrakis(diphenylphosphin)‐nickel(0)
1971
Die Titelsubstanz 1 wurde durch Einwirkung von Diphenylphosphin auf Bis-π-allyl-nickel, Tetrakis(triphenylphosphin)-nickel(0) (2), Nickelpulver oder Nickel(II)-bromid dargestellt. Ihre Struktur wurde durch Zerewitinoff-Bestimmung, IR- und NMR-Spektren abgesichert. Eine Alkylierung von metalliertem 1 gelang nicht. Organic Phosphorus Compounds, 68. Preparation and Properties of Tetrakis(diphenylphosphine)nickel(0) The title compound, 1, was prepared by reacting of diphenylphosphine with bis(π-allyl)nickel, tetrakis(triphenylphosphine)nickel(0) (2), nickel-powder, or nickel(II) bromide. The structure of 1 was elucidated by Zerewitinoff method, i. r. and n. m. r. spectra. The alkylation of meta…
Host filtering, not competitive exclusion, may be the main driver of arbuscular mycorrhizal fungal community assembly under high phosphorus
2023
A major goal in ecology is understanding the factors which determine the diversity and distribution of organisms. The outcome of the symbiotic relationship between plants and arbuscular mycorrhizal (AM) fungi is strongly influenced by soil phosphorus (P) availability. Despite this knowledge, there is still much to uncover about how soil P status can shape the taxonomic and phylogenetic assembly of root-colonising AM fungi. Additionally, there is a paucity of understanding about the implications of these changes for the outcome of the AM symbiosis in terms of plant growth, nutrient status and defence traits. We conducted a factorial pot experiment where sorghum (Sorghum bicolor) was grown un…
Carbohydrates and Polyols for Energy Supply of the Surgical Patient
1969
The administration of calorie-rich substances to surgical patients pre-,intra- and postoperatively poses many problems.
Modelling biological nitrogen and phosphorus removal with soluble microbial products (SMP) production-degradation processes
2011
Over the last two decades, Membrane Bioreactors (MBR) are increasingly used for wastewater treatment. Mathematical modelling of MBR systems has played a key role in order to better explain the effect of their peculiarities. Indeed, several MBR models have been presented in literature in order to improve the knowledge on MBR systems: biological models, hybrid models which include soluble microbial product (SMP) modelling, physical models able to describe the membrane fouling and integrated models which couple the hybrid models with the physical ones. However, among the existing MBR models only few integrated models have been developed which take into account the existing relationship between…
KOSMOS 2017 Peru Side Experiment: nutrients, phytoplankton abundances, enzyme rates, photophysiology
2022
This data was collected during an short-term incubation experiment in March 2017 that investigated the response of a surface plankton community to upwelling. This experiment was carried in the framework of the SFB754-funded KOSMOS mesocosm study that took place in La Punta, Callao, Peru between February-April 2017. A total of six different treatments were used to disentangle chemical and biological characteristics of deep water that influence surface plankton blooms: 2 different deep water sources with different nutrient concentrations; 3 treatments to distinguish the effects of inorganic nutrients, organic nutrients and deep water microbial populations. Measured variables include inorganic…