Sentences with phrase «early microbial life»

Reconstructing the evolution of early microbial life depends mainly on finding organic and mineral remnants of microbial activity preserved in the rock record.

Scientists have been arguing for decades over whether such structures are remnants of early microbial life, but the Australian formations are the best evidence yet.

Not exact matches

If these shallow pools existed at least 700 million years earlier — or when the oceans of Mars began to evaporate — they may have bridged a crucial gap for microbial life on the planet.

It is thought that the initial microbial exposure is important in defining the successional trajectories leading to more complex and stable adult ecosystems (10, 22), and additionally, initial communities may serve as a direct source of protective or pathogenic bacteria very early in life.

Earlier this year, geomicrobiologist Katrina Edwards of the University of Southern California and her colleagues drilled into the crust of the Atlantic Ocean and installed small subsurface observatories to monitor microbial life.

Toward that end he pursued studies of small (meiofaunal) grazing animals living within microbial mats and documented the earliest appearance of animal and trace (so - called Ediacaran) fossils in late Precambrian sediments in NE Norway.

Fossils discovered by UNSW scientists in 3.48 billion year old hot spring deposits in the Pilbara region of Western Australia have pushed back by 580 million years the earliest known existence of microbial life on land.

Mouse studies have shown that stress, particularly early in life, can change microbial communities, and not in a good way.

One reason for favouring this marine model is that fossil evidence of early land - based microbial life has been lacking.

It did, however, temporarily suppress four distinct organisms early in life during the critical window of microbial colonization: Lactobacillus, Allobaculum, Candidatus Arthromitus, and an unnamed member of the Rikenellaceae family, which may have important metabolic and immunological interactions.

Microbial Exposure During Early Life Has Persistent Effects on Natural Killer T Cell Function

Data from the instrument can improve the understanding of the history of Martian climate and if conditions on early Mars may have been conducive for supporting microbial life.

Scientists are still trying to explain how this microbial diversity comes about, but it is likely influenced by factors including diet, environment, host genetics and exposure to microbes early in life.

A few interesting articles in early life human microbiome, plus: A comparison between Staphylococcus epidermidis commensal and pathogenic lineages from the skin of healthy individuals living in North American and India; A new tool to reconstruct microbial genome - scale metabolic models (GSMMs) from their genome sequence; The seasonal changes in Amazon rainforest soil microbiome are associated with changes in the canopy; A specific class of chemicals secreted by birds modulates their feather microbiome; chronic stress alters gut microbiota and triggers a specific immune response in a mouse model of colitis; and evidence that the short chain fatty acids profile in the gut reflects the impact of dietary fibre on the microbiome using the PolyFermS continuous intestinal fermentation model.

Analysis of that sample showed that early Mars offered environmental conditions favorable for microbial life, including the key elemental ingredients for life and a chemical energy source such as used by some microbes on Earth.

Microbial life on early Earth evolved and changed the environment, thereby enabling the evolution of more complex life.

The discovery pushes back the earliest known existence of microbial life on land by at least 580 million years, and raises an intriguing question — where did life first emerge, on land or in the oceans?

The discovery of fossils of microorganisms in 3.48 billion - year - old hot spring deposits pushes back the earliest known existence of microbial life on land by at least 580 million years.