The fungus Mortierella elongata enjoys a close association with the fast-growing poplar tree (Populus trichocarpa), a potential biofuel feedstock. Scientists routinely spot the fungus near the tree or in between its root cells. To better understand their relationship, a team of scientists has studied the effect of the fungus on the tree’s physical traits and gene expression, finding the fungus induces some notable metabolic changes. Click here to read the science highlight on the JGI website.
JGI Builds Genetic Profile of Aspergillus section Nigri
In Nature Genetics, a team led by scientists at the Technical University of Denmark, the JGI, and JBEI present the first large analysis of an Aspergillus fungal subgroup, section Nigri. The results are part of a long-term project to sequence, annotate and analyze the genomes of more than 300 Aspergillus fungi.
In choosing to focus on section Nigri, the researchers recognized the myriad of industrial applications for the fungi within this subgroup. They serve as production organisms for 49 of 260 industrial enzymes and are also very efficient producers of enzymes and secondary metabolites. JGI Fungal Program head Igor Grigoriev said that one of the aims in sequencing the genomes within the Aspergillus genus is to increase the catalog of carbohydrate active enzymes (CAzymes), which can degrade plant cell walls and thus have applications in the DOE mission to develop industrial processes for producing sustainable alternative fuels using candidate bioenergy feedstock crops. Click to read more on the JGI website.
JGI Develops Single-Cell Pipeline for Fungal Diversity
JGI, JBEI Present First Results of Genus-Wide Aspergillus Project
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.
JGI Helps Analyze Dry Rot’s Adaptation to Built Environments
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.
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