Newly developed chemiluminescent biosensors shed light on how bacteria function and colonize diverse environments. The Science Cyclic di-GMP (Guanine Monophosphate) is found in nearly all types of bacteria and interacts with cell signaling networks that control many basic cellular functions. It plays an important role in regulating microbial cellulose production and biofilm formation, which affects… [Read More]

Sphagnome data would enable researchers’ insights on their potential carbon cycling impact. The Science Enabled by the JGI’s Community Science Program (CSP), researchers are developing a number of resources to build up Sphagnum as a plant model system focused on carbon cycling studies, rather than for food or fuel applications. The Impact Sphagnum’s impact on… [Read More]

Developing and validating an integrated approach to genome recovery from metagenomes. The Science Through the JGI’s Emerging Technologies Opportunity Program (ETOP), researchers have developed and improved upon a tool that combines existing DNA sequence binning algorithms, allowing them to reconstruct more near-complete genomes from soil metagenomes compared to other methods. The Impact Understanding how individual… [Read More]

Novel archaeal lineage found in Yellowstone may have been important in early Earth conditions. The Science Through a combination of sequencing tools and techniques applied to samples collected from acidic iron-oxide microbial mats in Yellowstone National Park over time, researchers have discovered and characterized a novel phylum-level lineage of archaea with at least two major… [Read More]

Retracing how the dry rot Serpula lacrymans adapted to a new ecological habitat. The Science By comparing genetic information from similar organisms, researchers have gained insights on why the dry rot (Serpula lacrymans) is so destructive in houses. A study involving six brown rot fungi reveals the genomic changes Serpula lacrymans has undergone in adapting… [Read More]

A fungus relies on bacteria to regulate key components of its reproductive machinery The Science To better understand how beneficial organisms (symbionts) are transmitted between host generations, researchers investigated the role that bacteria living within a host (endosymbionts) have on fungal host reproduction, and the reproductive genes they regulate. The bacterial endosymbiont, Burkholderia, is recognized… [Read More]

Comparative genomics identifies sequences involved in photosynthesis under reduced water conditions.   The Science In the presence of sufficient water and light, most plants conduct photosynthesis through what is known as the C3 pathway. As plants spread out and adapted to live in a variety of environments, they developed alternate photosynthesis pathways, known as C4 and… [Read More]

Nitrite-oxidizing bacteria have bigger role in marine carbon cycle than previously thought The Science Researchers have identified the most abundant and globally distributed nitrite-oxidizing bacteria (NOB) in the oceans, through single-cell genomics and community meta-omics. They have also calculated the NOB’s contribution toward trapping carbon beneath the sunlit waters and determined that though these bacteria… [Read More]

Establishing a genome-wide map of bacterial genes crucial for colonization of plants by beneficial microbes The Science Working with the plant growth-promoting bacterium Pseudomonas simiae, researchers have identified 115 genes that negatively affect its ability to colonize a plant root system when mutated. The Impact A plant’s health and development is influenced by the complex… [Read More]

Nutrient availability in model wetlands helps regulate microbial metabolism and soil carbon cycling rates The Science Studying microbial communities in San Joaquin Delta rice fields, researchers linked microbial metabolism and nutrient availability to soil carbon cycling rates. The Impact Establishing the inter-relationships among microbial metabolism, nutrient availability and soil carbon cycling rates is critical to… [Read More]