This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"All living things need phosphorus to survive. However, its low availability in soil is often a limiting factor for plant and microbial growth. Microorganisms in the plant root-soil interface (rhizosphere) can convert non-labile phosphorus into bioavailable forms. One way microbes do this is the mineralization of organic phosphorus compounds like phytate. Rising atmospheric CO₂ levels may accelerate mineralization, but the molecular mechanisms are not yet understood. Recent research confirmed that elevated CO₂ (eCO₂) increased the mineralization of phytate in the rhizosphere of wheat. Tracing the carbon flow showed that plants grown under eCO₂ increased the release of bioavailable carbon belowground, which corresponded to increased microbial growth and altered community composition. The bacterial community under eCO₂ favored groups of bacteria capable of degrading aromatic phosphorus compounds and the mycorrhizal fungi benefited from the increased supply of phosphorus and carbon..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
This course is an introduction to chemical oceanography. It describes reservoir models …
This course is an introduction to chemical oceanography. It describes reservoir models and residence time, major ion composition of seawater, inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxygen, and sulfur. Uptake of anthropogenic carbon dioxide by the ocean. Material presented through lectures and student-led presentation and discussion of recent papers.
The structure of the course is designed to have students acquire a …
The structure of the course is designed to have students acquire a broad understanding of the field of Marine Chemistry; to get a feel for experimental methodologies, the results that they have generated and the theoretical insights they have yielded to date.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Phosphorus is essential for life to function. It is a critical component of the energy metabolism molecules, genetic materials, and cell structures of all life. Phosphorus only enters natural ecosystems through the slow weathering of stone. Then microbes help maintain and regulate phosphorus by cycling it between its organic and inorganic forms. Understanding microbial phosphorus cycling is critical to many fields of study, like ecology and agriculture. However, researchers lack a comprehensive understanding of the phosphorus cycling genes microbes use, but the recently developed curated phosphorus cycling database (PCycDB) could help close that gap. PCycDB covers 10 phosphorus metabolic processes and 139 gene families, including several that have been missed elsewhere. Testing PCycDB with simulated datasets revealed high annotation accuracy, positive predictive value, sensitivity, specificity, and negative predictive value..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Life, in all its forms, is a constant balance of energy and matter. A look at any food web reveals how organisms are tightly connected to each other and their environment. On the smallest and most fundamental scale, the process is cyclical. Atoms representing vital minerals flow in a never-ending circuit from one sink to the next. Understanding this flow helps scientists answer questions about how organisms transform food into energy and body mass for growth and survival. But while these strategies tend to vary with species, life stage, and sex, studies often treat members of a population as being, for all intents and purposes, the same. Researchers from Jagiellonian University in Poland are taking a different approach. By tracking the assimilation, excretion, and allocation of the individual minerals found in pollen, they’re beginning to understand how the diet of the red mason bee contributes to its growth and survival and how the nutritional budget differs with life stage and sex..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
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