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    Tracing the Evolution of Shiitake Mushrooms
    Understanding Lentinula genomes and their evolution could provide strategies for converting plant waste into sugars for biofuel production. Additionally, these fungi play a role in the global carbon cycle.

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    Soil Virus Offers Insight into Maintaining Microorganisms
    Through a collaborative effort, researchers have identified a protein in soil viruses that may promote soil health.

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    Data yielded from RIViT-seq increased the number of sigma factor-gene pairs confirmed in Streptomyces coelicolor from 209 to 399. Here, grey arrows denote previously known regulation and red arrows are regulation identified by RIViT-seq; orange nodes mark sigma factors while gray nodes mark other genes. (Otani, H., Mouncey, N.J. Nat Commun 13, 3502 (2022). https://doi.org/10.1038/s41467-022-31191-w)
    Streamlining Regulon Identification in Bacteria
    Regulons are a group of genes that can be turned on or off by the same regulatory protein. RIViT-seq technology could speed up associating transcription factors with their target genes.

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    Mapping Switchgrass Traits with Common Gardens
    The combination of field data and genetic information has allowed researchers to associate climate adaptations with switchgrass biology.

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    Artist rendering of genome standards being applied to deciphering the extensive diversity of viruses. (Illustration by Leah Pantea)
    Expanding Metagenomics to Capture Viral Diversity
    Along with highlighting the viruses in a given sample, metagenomics shed light on another key aspect of viruses in the environment — their sheer genetic diversity.

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    Polar Phytoplankton Need Zinc to Cope with the Cold
    As part of a long-term collaboration with the JGI Algal Program, researchers studying function and activity of phytoplankton genes in polar waters have found that these algae rely on dissolved zinc to photosynthesize.

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    Silver Age of GOLD Introduces New Features
    The Genomes OnLine Database makes curated microbiome metadata that follows community standards freely available and enables large-scale comparative genomics analysis initiatives.

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    Graphical overview of the RNA Virus MetaTranscriptomes Project. (Courtesy of Simon Roux)
    A Better Way to Find RNA Virus Needles in the Proverbial Database Haystacks
    Researchers combed through more than 5,000 data sets of RNA sequences generated from diverse environmental samples around the world, resulting in a five-fold increase of RNA virus diversity.

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    HPCwire Editor's Choice Award (logo crop) for Best Use of HPC in the Life Sciences
    JGI Part of Berkeley Lab Team Awarded Best Use of HPC in Life Sciences
    The HPCwire Editors Choice Award for Best Use of HPC in Life Sciences went to the Berkeley Lab team comprised of JGI and ExaBiome Project team, supported by the DOE Exascale Computing Project for MetaHipMer, an end-to-end genome assembler that supports “an unprecedented assembly of environmental microbiomes.”

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    Digital ID card with six headshots reads: Congratulations to our 2022 Function Genomics recipients!
    Final Round of 2022 CSP Functional Genomics Awardees
    Meet the final six researchers whose proposals were selected for the 2022 Community Science Program Functional Genomics call.

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    CSP New Investigators FY23 R1
    JGI Announces First Round of 2023 New Investigator Awardees
    Twice each year we look for novel research projects aligned with DOE missions and from PIs who have not led any previously-accepted proposals through the CSP New Investigator call.

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    Digging into Microbial Ecosystems Deep Underground
    JGI users and microbiome researchers at Colorado State University have many questions about the microbial communities deep underground, including the role viral infection may play in other natural ecosystems.

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    2022 JGI-UC Merced interns (Thor Swift/Berkeley Lab)
    Exploring Possibilities: 2022 JGI-UC Merced Interns
    The 2022 UC Merced intern cohort share how their summer internship experiences have influenced their careers in science.

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    Using Team Science to Build Communities Around Data
    As the data portals grow and evolve, the research communities further expand around them. But with two projects, communities are forming to generate high quality genomes to benefit researchers.

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    Cow Rumen and the Early Days of Metagenomics
    Tracing a cow rumen dataset from the lab to material for a hands-on undergraduate research course at CSU-San Marcos that has since expanded into three other universities.

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Home › Items tagged with: plant pathogen

Content Tagged "plant pathogen"

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January 25, 2013

Lessons learned from comparing Cochliobolus fungi

Cochliobolus fungi are cereal grain pathogens in the Dothideomycetes class, and many species are known to infect crops such as corn, rice, barley, wheat and oats, causing severe losses at harvest time and to biomass feedstocks for biofuels. In a study published January 24, 2013 in Plos Genetics, one in a series of publications concerning… [Read More]

January 11, 2013

A fungal pathogen with a “genetically flexible” genome

In 2012, the damp winter threatened the wheat harvest in the state of Kansas, the nation’s single largest producer of the grain and wheat prices rose by 10 percent as a result. Diseases such as tan spot caused by the fungus Pyrenophoratritici-repentis (Ptr) factored into the reduced wheat harvests. In North Dakota, which ranks second… [Read More]

December 14, 2012

Lifestyles of a fungal plant pathogen family

The fungi that belong to the Dothideomycetes family are found on every continent and can tolerate a wide range of environmental extremes. Additionally, several of the fungi are plant pathogens that infect nearly every major crop used for food, fiber or fuel. In the December 6, 2012 issue of PLoS Pathogens, an international team led… [Read More]

December 7, 2012

Fungal pathogens – the common thread between pine and tomato

The disease that causes leaf mold on a tomato was first reported in the 1800s but hasn’t posed a major economic threat for several decades. Needle blight affects pine species around the world, causing severe economic losses. At first glance, the diseases appear unrelated but they are both caused by related fungal plant pathogens from… [Read More]

November 23, 2011

Mite genome to help protect bioenergy feedstocks

The tiny two-spotted spider mite extracts nutrients from the leaves of 1,100 plant species including bioenergy feedstock crops. The global cost of chemically controlling this pest is estimated to be around $1 billion annually. Given its potential to significantly reduce crop yields and inhibit biofuel production, the spider mite Tetranychusurticaewas selected for the 2007 DOE… [Read More]

August 12, 2011

Toward a Better Understanding of Soil-Microbe Interactions

In the August 2011 issue of the Journal of Bacteriology, a team of researchers led by DOE JGI’s Patrick Chain at Los Alamos National Laboratory focused on a microbe that can help or harm as the case may be. Ochrobactrum anthropi thrives in a variety of habitats including polluted soil, plants and even higher mammals…. [Read More]

July 11, 2011

Mycosphaerella genome project in Capital Press

Septoria typically infects young seedlings that have recently emerged, creating lesions, and spreading to the higher leaves. It can affect yield and quality, Goodwin said. Control methods are typically fungicide sprays, he noted. Igor Grigoriev, of the U.S. Department of Energy’s Joint Genome Institute in Walnut Creek, Calif., has been sequencing the genomes of other… [Read More]

June 15, 2011

Mycosphaerella project in Media Newswire

Enzymes often break down plant cell walls and begin removing nutrients, leading to the plant’s death. M. graminicola, however, enters the plant through stomata, small pores in the surface of leaves that allow for exchange of gases and water.  Goodwin said the fungus seems to lay dormant between plant cells, avoiding detection. It later infects… [Read More]

June 10, 2011

Mycosphaerella genome project in Agricultural Research

The pathogen that causes the disease, Mycosphaerella graminicola, has a long “silent period,” a latent stage during which it takes nutrition from the living plant and evades the host plant’s natural defenses. Scientists previously did not have a good understanding of how the organism infects wheat, or how the wheat plant itself resists the pathogen…. [Read More]

June 10, 2011

Mycosphaerella genome project in Farmers Guardian

SCIENTISTS have cracked the genetic code of septoria tritici – the most important foliar disease of wheat in the UK – and in doing so have gained an insight into how the disease is able to evade wheat’s natural defences. The researchers, who were funded by the BBSRC and others, hope the study, which reveals… [Read More]
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