Biosciences News

Found in microbial communities around the world, Aspergillus fungi are pathogens, decomposers, and important sources of biotechnologically-important enzymes. In a study published ahead the week of January 8, 2018 in the Proceedings of the National Academy of Sciences, a team led by researchers at the Technical University of Denmark (DTU), the Joint Genome Institute (JGI), and the DOE’s Joint BioEnergy Institute (JBEI) report the first results of a long-term plan to sequence, annotate and analyze the genomes of 300 Aspergillus fungi. These findings are a proof of concept of novel methods to functionally annotate genomes in order to more quickly identify genes of interest. Read more on the JGI website.

Unlike white rots, brown rots break down only the cellulose and hemicellulose, leaving the lignin behind. The brown rot Serpula lacrymans is typically found in spruce and other conifers in boreal forests. As these trees were harvested for constructing buildings, the dry rot fungus migrated indoors and across borders, adapting to thrive in manmade environments. Reported January 5, 2018 in The ISME Journal, a comparative genomics analysis by a team led by University of Oslo scientists and including JGI researchers lends insights on how the fungus has responded to manmade changes in its ecological habitat, adapting to thrive in built environments. Learn more on the JGI website.

Biological soil crusts, or biocrusts, contain communities of microorganisms—including fungi, bacteria, and archaea—that dwell together within the uppermost millimeters of soil in arid lands. These microbes can exist for extended periods in a desiccated, dormant state, becoming metabolically active when it rains. Understanding how biocrust microbial communities adapt to their harsh environments could help shed light on the roles of soil microbes in the global carbon cycle. Berkeley Lab scientists led by Trent Northen’s group in Environmental Genomics and Systems Biology (EGSB) found that specific compounds are transformed by and strongly associated with specific bacteria in native biological soil crust. The researchers reported their findings in a paper published January 2 in Nature Communications.

For the first time, University of California, Berkeley scientists have used CRISPR-Cas9 gene editing to disable a defective gene that causes amyotrophic lateral sclerosis, or Lou Gehrig’s disease, in mice, extending their lifespan by 25 percent. The team was led by David Schaffer, faculty scientist in Molecular Biophysics and Integrated Bioimaging.

A protein that protects plants from damage caused by too much light energy has been found by a team of researchers led by Kris Niyogi, faculty scientist in the Molecular Biophysics and Integrated Bioimaging Division. Alizée Malnoë, a postdoctoral researcher in Niyogi’s group, is the lead author on the study published in the journal The Plant Cell. Plants with deficient levels of the lipocalin protein are less able to dissipate excess light energy. Scientists will explore how this energy dissipation process is turned on and off, and whether manipulation of light usage could lead to higher crop yields. Read more in the Berkeley Lab News Center.