Monday, November 30, 2015

BacterioFiles 240 - Water Worms Make (carbon) Monoxide Meals

This episode: Marine worms and their microbial symbionts can live on the toxic gas carbon monoxide!

Reminder: this is the last episode for at least a few weeks while I am wrapping up my PhD. See you again when I'm done!


Download Episode (11.1 MB, 12.1 minutes)

Show notes:
Journal Paper

Other interesting stories:
  • Salt-loving extremophiles eat carbon monoxide at Mars-level concentrations (paper)
  • Better biotech processes by microbial cooperation (paper)
  • Different ways to engineer microbes to produce propane
  • Not all organisms share exactly the same genetic code
  • Queen bees have different microbes than other bees (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, November 23, 2015

    BacterioFiles 239 - Familial Pheromones Fight faecalis

    Just to let you know, I'm trying to finish up my dissertation and graduate in the next few months, so after episode 240, I will be putting the show on hold, at least for a few weeks (but not forever). I'll be sure to bring back some good content after I am done feeling so crunched for time though.

    This episode: Gut bacteria kill their drug-resistant pathogenic cousins of the same species via pheromone signaling!


    Download Episode (10.4 MB, 11.4 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Bacterial compound could inhibit biofilms but not their builders
  • Microbial engineering could free us from petroleum products
  • Studying the immune regulation roles of mouse gut microbes (paper)
  • Finding useful cold- and warm-adapted algae by season (paper)
  • Powerful swimming microbe creates crystals of cells

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, November 16, 2015

    BacterioFiles 238 - Forcing Fungal Familiarization

    This episode: Of genes that are similar in yeast and humans, almost half of the yeast versions are functional when replaced with the human version!


    Download Episode (7.9 MB, 8.5 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Turning algae from harmful blooms into useful products
  • Intercropping enriches microbes that help crop yields (paper)
  • Bacteria store energy in magnetic particles that other bacteria later take
  • Certain gut microbes are characteristic of traditional (non-urban) lifestyles (paper)
  • More study into how microbes make tasty foods

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, November 9, 2015

    BacterioFiles 237 - Proving Protist Predation Parentage

    This episode: Vampirovibrio chlorellavorus, a predatory bacterium that feeds on Chlorella algae, is currently lost from science, but its genome has been sequenced and interpreted anyway, to reveal a surprising family history!


    Download Episode (9.4 MB, 10.25 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Appetite-suppressing bacteria could treat obesity
  • Skin bacteria could save frogs from deadly fungus
  • Developing yeast that produce lots of biofuel lipids
  • Vineyard soil microbiome affects vine microbes (and thus, wine)
  • Microbes could make super-sensitive bioelectromechanical sensors

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, November 2, 2015

    BacterioFiles 236 - Film Formation Favors Fossilization

    Brine shrimp
    Credit: Xavier on Flicker
    This episode: Gut microbes' activity in decaying brine shrimp help promote fossilization of their soft parts!


    Download Episode (8.1 MB, 8.8 minutes)

    Show notes:
    Paywalled news item/Journal Paper

    Other interesting stories:
  • Baboon friends have more closely related gut communities
  • Lichens are awesome
  • Plants depend on bacteria when producing defensive chemicals
  • Using bacterial communication signal to modify gut microbe communities
  • Deinococcus could be useful biotech species (review)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, October 26, 2015

    BacterioFiles 235 - Dust DNA Detectives with Dr. Dunn

    Rob Dunn, NC State University
    This episode: I talk with Dr. Rob Dunn about his team's research into determining where a dust sample comes from based on the microbes present in it!


    Download Episode (12.6 MB, 13.7 minutes)

    Show notes:
    News item/Journal Paper
    The Dunn lab
    Books

    Other interesting stories:
  • Certain gut bacteria could help animals feed on new foods (paper)
  • Potential for engineering our own microbiome
  • Bacteria could help clean up radioactivity at Fukushima
  • Bacteria could make better fruit fly traps (paper)
  • Acid-resistant bacterium could help with stomach infections (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, October 19, 2015

    BacterioFiles 234 - Phone, Floor Phylum Forensics

    This episode: Learning things about people's identity and movements from microbial communities on their phones and shoes!


    Download Episode (5.4 MB, 5.8 minutes)

    Show notes:
    News item 1/News item 2/Journal Paper

    Other interesting stories:
  • Bacteria that live in the deepest part of the ocean
  • Gut bacteria, birth conditions, and weight are related (paper)
  • Bee microbiomes stay pretty constant
  • Early gut bacteria associated with food allergy risk
  • Gut bacteria could relate to ability to control blood sugar

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, October 12, 2015

    BacterioFiles 233 - Messy Microbes Maintain Mouse Microbiota

    This episode: Mice in less sanitary conditions have more diverse gut communities and perhaps less allergy!

    Download Episode (8.15 MB, 8.8 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Fertilizer leads to less-helpful soil bacteria
  • Sponge bacteria help corals get phosphorus
  • Another way to use microbial electricity to produce hydrogen
  • Soap has bacteria too
  • Corals are eating plastic; is it harmful?

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, October 5, 2015

    BacterioFiles 232 - Exploring Enzymes' Element Effects

    This episode: Bacteria can convert soluble uranium to an insoluble form, and distinguish between different isotopes!

    Download Episode (8.2 MB, 8.9 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Bacteria could help degrade environmental chemical contaminant (paper)
  • Phage could treat dental infections
  • Bacteria and grass together clean up soil
  • Mutant E. coli keeps getting longer without dividing
  • Algae could produce malaria vaccine

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, September 28, 2015

    BacterioFiles 231 - Creating Cancer-Killing Cultures

    This episode: Engineering Salmonella strains that kill cancer cells but leave healthy ones alone!

    Download Episode (7.9 MB, 8.5 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Rocks floating on a lake house interesting microbes (paper)
  • Aerobiology - how bacteria affect the weather
  • Modified gut bacteria could control populations of insect disease vectors (paper)
  • Gut microbiome's health effects are not so simple
  • Some traits could be inherited via bacteria

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, September 21, 2015

    BacterioFiles 230 - Plant Prokaryotes Promote Protein Production

    This episode: Bacteria in and around plants can help fertilizer them, even in non-legume plants!

    Download Episode (11.1 MB, 12.15 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Figuring out what microbes live (or lived) in NYC's subway
  • Duckweed could be good microbe food for making biofuels (paper)
  • Fungal endophytes help barley grow more sustainably
  • Flower wallpaper made of vaccinated cells
  • Plant-raping bacteria could help genetically modify yeast (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, September 14, 2015

    Monday, September 7, 2015

    BacterioFiles 228 - Bacteria Beat Bat Blight

    Inhibition assay, bacterial colonies
    on fungal lawn. Hoyt et al. 2015
    This episode: Bacteria isolated from bats' skin inhibits the growth of bat-killing fungus!

    Download Episode (7 MB, 7.6 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:

  • Bacteria could produce useful emulsifiers (paper)
  • Fast-growing cyanobacteria could be good for producing things
  • Making yeast produce more useful proteins such as insulin
  • Microalga could be good biofuel oil producer
  • Microbes might've helped create large gold deposits

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, August 31, 2015

    BacterioFiles 227 - Microbe Menaces Meningitis

    This episode: Colonizing ourselves with friendly bacteria could drive out more risky ones, such as those that cause meningitis!

    Download Episode (9.8 MB, 10.6 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Bacterial vapors inhibit deadly plant pathogen (paper)
  • Finding phages to fight tomato disease (paper)
  • Immune system is important for maintaining gut community health
  • Even the same species can have diversity in the gut
  • Using bacterial power to generate clean water and electricity

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, August 24, 2015

    BacterioFiles 226 - Deep Dwellers Diversify

    This episode: Archaea living in the deep ocean (and their viruses) have clever ways to maintain diversity and adaptability!

    Download Episode (10.3 MB, 11.25 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Super-slow-growing bacteria may evolve without reproducing
  • Human gut bacterium is especially able to digest yeast cell walls
  • Soil fungi can convert uranium to more recoverable insoluble form (paper)
  • Viruses may have helped human brain develop through history
  • Accessory genes make each bacterial strain unique

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, August 17, 2015

    BacterioFiles 225 - Implanting Internal Invader Immunity

    This episode: Don't have immunity? Create your own! Scientists engineer cells to destroy their HIV infections using the bacterial immune system!

    Download Episode (14.5 MB, 15.8 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Insect bacteria produce small RNAs to communicate with hosts (paper)
  • Yeast can make lots of useful things
  • Engineering E. coli to better tolerate biofuels it produces (paper)
  • Pathogens can resist phage infection, but often at a cost (paper)
  • Microbes can survive on space vessels and cause problems away from Earth

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, August 10, 2015

    BacterioFiles 224 - Super Small Cells

    Ultramicrobacterium.
    Fig 3 Luef et al 2015
    This episode: Scientists discover what seem to be ultra-small bacteria, possibly smaller than the theoretical minimum size!

    Download Episode (12.3 MB, 13.4 minutes)

    Show notes:
    News item 1/News items 2/Journal Paper

    Other interesting stories:
  • Bacteria could produce good biofuels from renewable resources (paper)
  • Studying quorum sensing by 3D-printing bacterial biofilms (paper)
  • Marine algae could be good source of nutrients alternative to fish oil
  • Caterpillar mind-control virus seems to manipulate response to light
  • 9 cool things about microbes

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, August 3, 2015

    BacterioFiles 223 - Fecal Fusions Forecast Fatness

    This episode: Sampling microbial populations in sewage from cities could reveal differences in the human populations, such as prevalence of obesity!

    Download Episode (9.1 MB, 9.9 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Bacterial communities could be evidence about sexual crimes
  • Bacteria around plants could fight plant diseases (paper)
  • Microbes can greatly affect mouse gut's protective mucus layer
  • Cyanobacteria could survive on Mars and produce breathable oxygen
  • Garbage in Yellowstone permitted hot spring microbial rainbow

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, July 27, 2015

    BacterioFiles 222 - Cells Store Solar Sparks

    The setup. Torella et al. 2015
    This episode: Bacteria engineered to produce liquid fuel can eat carbon dioxide and hydrogen from solar-powered water-splitting!

    Download Episode (11.2 MB, 12.25 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Some bugs need their vitamin-producing microbes, but kill them to harvest the vitamins
  • How specific gut microbes influence immune system (paper)
  • Bacteria used to produce various food ingredients
  • Bacteria could produce polyester beads that bind specific proteins (paper)
  • Rainforest bacteria could help plants grow better in poorer soil (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, July 13, 2015

    BacterioFiles 221 - Co-culture Close Contact, Cats, and Cockerels

    More related than some bacteria
    This episode: More distantly related bacteria can help each other grow (and produce lots of hydrogen) by temporarily fusing with each other!

    Download Episode (12.7 MB, 13.9 minutes)

    Show notes:
    News item/Journal Paper
    Bacterial close contact
    Note: I said C. acetobutylicum was used in WWII to make acetone for bombs, but it was actually World War I, used to make cordite, a replacement for gunpowder.

    Other interesting stories:
  • Gut microbes can affect brain's defensive barrier in mice
  • Getting E. coli to produce higher amounts of nice-smelling biofuel compounds
  • Using fungi to control avocado-damaging pests
  • Bacterial proteins used to modify human cells' immune signaling (paper)
  • Worm gut bacteria could help degrade plastic waste

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, July 6, 2015

    BacterioFiles 220 - Coliforms Cooperate by Conduit

    Tubes!
    Pande el al. 2015
    This episode: Bacteria can connect to each other with tiny tubes to exchange nutrients!
    Download Episode (10 MB, 10.9 minutes)

    Show notes:
    News item/News item 2/Journal Paper

    Other interesting stories:
  • If society collapsed, we could eat microbes
  • Archaea could produce useful antibacterials too
  • Tree-killing diseases can help forests be more diverse
  • Animals have taken the genes bacteria use to poison each other
  • Viruses can sometimes survive frozen for centuries (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

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    This show features music from Mevio's podsafe Music Alley.

    Monday, June 29, 2015

    Monday, June 22, 2015

    BacterioFiles 218 - Parasitoids Pass Protective Prokaryotes

    Such a cute parasitoid
    Arrows indicate Wolbachia
    Ahmed et al. 2015
    This episode: Parasitoid wasps spread helpful bacterial symbionts between their whitefly prey!

    Download Episode (10.9 MB, 11.9 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Making magnetic bacteria do a dance (w/ video)
  • Viruses have influenced evolution and genetics of plants, including wine grapes
  • Deep-sea fungus produces potentially useful chemicals (paper)
  • Effective genetic modification of fungi could lead to useful biotech processes
  • Microbe-shaped (though not microbe-flavored) popsicles

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, June 15, 2015

    BacterioFiles 217 - Fungus Fortifies Fly Food

    This episode: Fruit flies have microbes that help them get more nutrition out of low-quality food!

    Download Episode (8.4 MB, 9.1 minutes)

    Show notes:
    News item/Journal Paper

    Other interesting stories:
  • Strategies for treating infections without antibiotics
  • Increased interest in microbes for agriculture
  • Our genetics seem to affect our gut microbiota
  • Algae farm over highway consumes CO2 from cars
  • Fly bacteria engineered to prevent sleeping sickness tranmission (paper)

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Sunday, June 7, 2015

    BacterioFiles Special - ASM2015

    Here's my summary of ASM2015, an exciting weekend full of science.

    Download Episode (11.5 MB, 12.5 minutes)


    The convention center in NOLA

    Bird in a bayou

    Not solid ground

    Your host

    Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    Thursday, May 28, 2015

    ASM2015 General Meeting Next Week

    No full episode next week; BacterioFiles will be at ASM2015! But I will try to have some conference content to share nevertheless.

    Monday, May 25, 2015

    BacterioFiles 216 - Probiotic Promotes Peanut Permissiveness

    Peanut flower
    This episode: Kate Franz and Matt Woodruff from Audiommunity join me to talk about a clinical trial of peanut immunotherapy with probiotics to treat peanut allergies!

    Download Episode (29 MB, 31.75 minutes)

    Show notes:
    News item/Journal Paper
    Audiommunity - episode about food allergies

    Other interesting stories:
  • Some viruses can survive being frozen for hundreds of years
  • Resistance to certain gut pathogen correlates with certain gut microbes (paper)
  • "Normal" gut microbiome probably as varied as we are ourselves
  • Human gut communities are very different from chimpanzees'
  • Figuring out how to engineer bacteria to tolerate biofuels they produce

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, May 18, 2015

    Monday, May 11, 2015

    BacterioFiles 214 - Cable-Chlorophyte Coop Conducts Current

    Cable bacteria
    Malkin and Meysman, 2015
    This episode: Cable bacteria and algae set up electric grid in sediments!

    Download Episode (6 MB, 6.5 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Daily rhythms are important for gut microbes and their hosts
  • Wild yeasts are very diverse in the smells they produce (paper)
  • Gut microbiome may be involved in alcoholism (paper)
  • Tiny tiny viruses can have very big effect on ocean carbon
  • Mouse lupus correlates with certain gut bacteria

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, May 4, 2015

    Monday, April 27, 2015

    BacterioFiles 212 - Ghosts Get Good Guarding

    Left: Not a ghost
    Right: A ghost
    Hjelm et al. 2015
    This episode: Bacterial ghosts could make good vaccines for different things!

    Download Episode (9.8 MB, 10.7 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • What would happen if all microbes suddenly disappeared?
  • Probiotics help protect children and pregnant women from heavy metal toxicity
  • Using virus-like particles to kill harmful algae (paper)
  • Yeast make nice beer scent to attract fruit flies
  • Algae-powered electric Grand Prix cars

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, April 20, 2015

    Monday, April 13, 2015

    BacterioFiles 210 - Archaea Acquired Alternative Abilities

    This episode: Genes taken from bacteria may have been important for the evolution of distinct groups of archaea!

    Download Episode (7.4 MB, 8 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Bacterial signals could tell cancer cells to stop causing problems
  • (Sulfite-free) wine could have helpful bacteria
  • Probiotic prevents chickens from carrying human pathogen (paper)
  • Plants keep helpful bacteria in their seeds
  • Bacteria are helping break down drugs in waterways

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, April 6, 2015

    BacterioFiles 209 - Myxococcus Menace Motivates Megastructures

    Megastructure
    (Müller et al. 2015)
    This episode: Microbial predators in soil cause microbial prey to build fortifications!

    Download Episode (8.8 MB, 9.5 minutes)

    Show notes:
    Journal Paper

    Other interesting stories:
  • Using bacteria to produce adhesives that shellfish use underwater
  • Maintaining gut community may be important for surviving intensive care
  • Human gut might actually have some useful bacteria for biofuels too
  • Termites use mixture of fungal and bacterial symbionts
  • Bacteria help seeds sprout faster

  • Post questions or comments here or email to bacteriofiles@gmail.com. Thanks for listening!

    Subscribe at iTunes, check out the show at TwitterMicrobeWorld, or Facebook

    This show features music from Mevio's podsafe Music Alley.

    Monday, March 30, 2015