Monday, May 22, 2017

BacterioFiles 294 - Bacteria Benefit Bad Burns

Lactobacillus plantarum colonies
Donald Breakwell et al. 2007. 
This episode: Probiotic bacteria prevent deadly infections in mice with serious burns!

Download Episode (6.3 MB, 6.92 minutes)

Show notes:
Journal Paper:
Argenta A, Satish L, Gallo P, Liu F, Kathju S. 2016. Local Application of Probiotic Bacteria Prophylaxes against Sepsis and Death Resulting from Burn Wound Infection. PLOS ONE 11:e0165294.

Other interesting stories:
  • Bacteria can help cotton plants tolerate salt (paper)
  • Fiber stops microbes from eating protective gut mucus
  • Potential new antibiotics predicted and discovered in human microbes
  • Bacteria communicate to work together against viruses
  • Root bacteria help protect plants against arsenic and infections

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

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    Monday, May 15, 2017

    BacterioFiles 293 - Millet Microbe Makes Meshes

    Finger millet
    This episode: Bacteria in finger millet roots create special killing traps for damaging fungi!

    Download Episode (7.5 MB, 8.25 minutes)

    Show notes:
    News item

    Journal Paper:
    Mousa WK, Shearer C, Limay-Rios V, Ettinger CL, Eisen JA, Raizada MN. 2016. Root-hair endophyte stacking in finger millet creates a physicochemical barrier to trap the fungal pathogen Fusarium graminearum. Nat Microbiol 1:16167.

    Other interesting stories:
  • Animal study of phage cocktail to treat cholera
  • Soil microbes could help clean up arsenic contamination (paper)
  • Bacteria with nucleus-like structure even have nuclear pore-like structures
  • Using bacteria to find best enzymes for degrading lignin (paper)
  • Making microbial fuel cells with paper

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

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    Monday, May 8, 2017

    BacterioFiles 292 - Testing Tardigrade Tolerance Tricks

    Tardigrade
    By Bob Goldstein and Vicky Madden
    CC BY-SA 3.0
    This episode: Tiny super-resistant animals, tardigrades, make proteins that can directly shield DNA from radiation!

    Download Episode (7.3 MB, 8 minutes)

    Show notes:
    News item 1/News item 2

    Journal Paper:
    Hashimoto T, Horikawa DD, Saito Y, Kuwahara H, Kozuka-Hata H, Shin-I T, Minakuchi Y, Ohishi K, Motoyama A, Aizu T, Enomoto A, Kondo K, Tanaka S, Hara Y, Koshikawa S, Sagara H, Miura T, Yokobori S, Miyagawa K, Suzuki Y, Kubo T, Oyama M, Kohara Y, Fujiyama A, Arakawa K, Katayama T, Toyoda A, Kunieda T. 2016. Extremotolerant tardigrade genome and improved radiotolerance of human cultured cells by tardigrade-unique protein. Nat Commun 7:12808.

    Other interesting stories:
  • New sunscreen compounds could come from bacteria
  • Bacterial fingerprints don't last forever (paper)
  • Virus infecting bacteria makes structure like a nucleus (paper)
  • Microbes could produce useful, biological nanowires
  • Finding viruses to control fungal pathogens of plants

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

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    Monday, May 1, 2017

    Monday, April 24, 2017

    BacterioFiles 290 - Lichens' Little Lodgers

    Lichens on rock near Las Vegas, NV
    I'm back! This episode: Lichens, long known to be a partnership between fungi and algae, now discovered to have an important third member!

    Download Episode (8.1 MB, 8.9 minutes)

    Show notes:
    News item

    Journal Paper:
    Spribille T, Tuovinen V, Resl P, Vanderpool D, Wolinski H, Aime MC, Schneider K, Stabentheiner E, Toome-Heller M, Thor G, Mayrhofer H, Johannesson H, McCutcheon JP. 2016. Basidiomycete yeasts in the cortex of ascomycete macrolichens. Science 353:488–492.

    Other interesting stories:
  • Some protists like to eat archaea (paper)
  • Bee bacteria can break down harmful sugars in bee food (paper)
  • Testing how best to use mosquito bacteria to block virus transmission (paper)
  • Studying Inuit gut microbes
  • Temperature affects Wolbachia health in mosquitoes (paper)

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

    Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook.

    Wednesday, March 15, 2017

    Short Break

    I'm putting the show on pause again for a short while, because I'm too busy with other things for the moment. But it'll be back soon with more exciting stories!

    Monday, March 13, 2017

    BacterioFiles Special - Novozymes' Nathan Cude

    This episode: An interview with Dr. Nathan Cude, team leader at Novozymes BioAg Alliance, working on finding and bringing to market soil microbes that can help crops grow!
    Download Episode (14.1 MB, 15.4 minutes)

    Show notes:
    Novozymes
    BioAg Alliance
    Nathan Cude on Twitter and LinkedIn

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

    Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook.

    Monday, March 6, 2017

    BacterioFiles 289 - Prehistoric Paired Prokaryote Partners

    This episode: Great apes' specific gut microbe communities have been with us for millions of years!

    Download Episode (9.1 MB, 10 minutes)

    Show notes:
    News item 1/News item 2

    Journal Paper:
    Moeller AH, Caro-Quintero A, Mjungu D, Georgiev AV, Lonsdorf EV, Muller MN, Pusey AE, Peeters M, Hahn BH, Ochman H. 2016. Cospeciation of gut microbiota with hominids. Science 353:380–382.

    Other interesting stories:
  • Gut bacteria could help treat kidney disease (paper)
  • Virus that infects viruses acts as genomic antiviral defense for host
  • Microbial archaeology studies bacteria resistant to copper in medieval foundry (paper)
  • Bacteria embedded in porous stones make good water filters (paper)
  • Computers can use microbes to estimate time of death

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

    Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook.

    Monday, February 27, 2017

    BacterioFiles 288 - Caulobacter's Copper Coping Capabilities

    Caulobacter crescentus
    This episode: Some bacterial species use multiple strategies within a single population to deal with environmental challenges!

    Download Episode (8.9 MB, 9.7 minutes)

    Show notes:
    Journal Paper:
    Lawarée E, Gillet S, Louis G, Tilquin F, Blastier SL, Cambier P, Matroule J-Y. 2016. Caulobacter crescentus intrinsic dimorphism provides a prompt bimodal response to copper stress. Nat Microbiol 1:16098.

    Other interesting stories:
  • Bacteria help starved, developing rats get more nutrition from the same food (paper)
  • Creating gut microbe communities to resist pathogens (paper)
  • Predatory bacteria can treat infections in zebrafish larvae
  • Nitrogen is an important element for feeding the gut community
  • Bacterial enzymes artificially evolved to make carbon-silicon compounds

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

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    Monday, February 20, 2017

    BacterioFiles 287 - Producing Potent Pathogen Prophylaxes

    Streptococcus pneumoniae
    Credit: CDC/M.S. Mitchell
    This episode: Polymer-coated bacteria make really good vaccines!

    Download Episode (9.2 MB, 10 minutes)

    Show notes:
    News item

    Journal Paper:
    Li Y, Beitelshees M, Fang L, Hill A, Ahmadi MK, Chen M, Davidson BA, Knight P, Smith RJ, Andreadis ST, Hakansson AP, Jones CH, Pfeifer BA. 2016. In situ pneumococcal vaccine production and delivery through a hybrid biological-biomaterial vector. Sci Adv 2:e1600264.

    Other interesting stories:
  • Fiber stops microbes from eating protective gut mucus
  • Potential new antibiotics predicted and discovered in human microbes
  • Bacteria communicate to work together against viruses
  • Root bacteria help protect plants against arsenic and infections
  • Fungus helps plants defend themselves against roundworms

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

    Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook.

    Monday, February 13, 2017

    BacterioFiles 286 - Prokaryote Prevents Pregnancy Pathogen

    This episode: Bacteria in mosquito cells can block transmission of Zika virus!

    Download Episode (8.1 MB, 8.9 minutes)

    Show notes:
    News item

    Journal Paper:
    Aliota MT, Peinado SA, Velez ID, Osorio JE. 2016. The wMel strain of Wolbachia Reduces Transmission of Zika virus by Aedes aegypti. Sci Rep 6:28792.

    Other interesting stories:
  • Modified bacteria change behavior as temperature changes
  • Ants' bacteria produce antifungal compounds (paper)
  • Gut microbes may be related to macular degeneration
  • E. coli could be used to make vaccines (paper)
  • Using bacteria to produce testosterone (paper)

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

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    Monday, February 6, 2017

    BacterioFiles 285 - Sultry Snow Cell Sun Screen

    Red snow
    By Will Beback, CC BY-SA 3.0
    This episode: Algae growing in Arctic snow make red pigments that heat up their surroundings!

    Download Episode (6.8 MB, 7.5 minutes)

    Show notes:
    News item

    Journal Paper:
    Lutz S, Anesio AM, Raiswell R, Edwards A, Newton RJ, Gill F, Benning LG. 2016. The biogeography of red snow microbiomes and their role in melting arctic glaciers. Nat Commun 7:11968.

    Other interesting stories:
  • Bacterial species benefit from losing genes they don't need
  • Soil fungi help plants grow better in salty conditions (paper)
  • Bacterial predators actually help treat infection in rats
  • Some bacteria produce methane while harvesting phosphorus (paper)
  • Probiotics could help treat skin problems (paper)

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

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    Monday, January 30, 2017

    BacterioFiles 284 - Remedies Reduce Recipient Rejection

    This episode: Modifying mice's microbial communities increased mouse survival before a transplantation was rejected by their immune system!
    Download Episode (9.6 MB, 10.5 minutes)

    Show notes:
    News item

    Journal Paper:
    Lei YM, Chen L, Wang Y, Stefka AT, Molinero LL, Theriault B, Aquino-Michaels K, Sivan AS, Nagler CR, Gajewski TF, Chong AS, Bartman C, Alegre M-L. 2016. The composition of the microbiota modulates allograft rejection. J Clin Invest 126:2736–2744.

    Other interesting stories:
  • CRISPR system can be used to record info in cells (paper)
  • The history of beer yeasts
  • Bacteria could help treat citrus tree disease (paper)
  • Some viruses bud off from Archaea like in eukaryotes (paper)
  • Infant microbe communities different with vs. without eczema (paper)

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

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    Monday, January 23, 2017

    BacterioFiles 283 - Phages Furnish Photosynthetic Fortifications

    Nostoc
    By YAMAMAYA, CC BY-SA 3.0
    This episode: Viruses infecting photosynthetic bacteria could transfer immunity to other viruses between their hosts!
    Download Episode (6.8 MB, 7.4 minutes)

    Show notes:
    News item

    Journal Paper:
    Chénard C, Wirth JF, Suttle CA. 2016. Viruses Infecting a Freshwater Filamentous Cyanobacterium (Nostoc sp.) Encode a Functional CRISPR Array and a Proteobacterial DNA Polymerase B. mBio 7:e00667-16.

    Other interesting stories:
  • Salt-loving bacteria could maintain concrete structures in the ocean (paper)
  • Ancient viral infection changed how mammals develop placentas and muscle
  • Bees and flowers trade microbes
  • Fungi have specific genes that help trees with drought
  • Probiotic can affect Candida yeast's virulence (paper)

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

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    Monday, January 16, 2017

    BacterioFiles 282 - Mycobacteria Make Mice Mellow

    Elevated plus-maze
    By Bd008 - Own work
    CC BY-SA 3.0
    This episode: Vaccinating mice with heat-killed soil bacteria reduced their stressed behavior and inflammation!
    Download Episode (9.8 MB, 10.7 minutes)

    Show notes:
    Journal Paper:
    Reber SO, Siebler PH, Donner NC, Morton JT, Smith DG, Kopelman JM, Lowe KR, Wheeler KJ, Fox JH, Hassell JE, Greenwood BN, Jansch C, Lechner A, Schmidt D, Uschold-Schmidt N, Füchsl AM, Langgartner D, Walker FR, Hale MW, Perez GL, Treuren WV, González A, Halweg-Edwards AL, Fleshner M, Raison CL, Rook GA, Peddada SD, Knight R, Lowry CA. 2016. Immunization with a heat-killed preparation of the environmental bacterium Mycobacterium vaccae promotes stress resilience in mice. Proc Natl Acad Sci 113:E3130–E3139.

    Other interesting stories:
  • Art with glowing bacteria
  • Making good bacterial tumor killers (paper)
  • It's worth considering plants' microbes in addition to their genes (review)
  • Virus affects how bees are attracted to plants
  • Finding new biofuels algae in wastewater (paper)

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

    Subscribe at iTunes or Google Play, support the show at Patreon, or check out the show at Twitter, or Facebook

    Monday, January 9, 2017