Monday, January 15, 2018

BacterioFiles 324 - Prokaryote Prefers Poorer Power

Green Dragon Spring, Yellowstone
Credit: National Park Service
This episode: Hot spring archaea prefer to use elements that give them less energy even when more energetic options are available!

Download Episode (8.1 MB, 8.8 minutes)

Show notes:
Microbe of the episode: Vitreoscilla beggiatoides

News item

Journal Paper:
Amenabar MJ, Shock EL, Roden EE, Peters JW, Boyd ES. 2017. Microbial substrate preference dictated by energy demand rather than supply. Nat Geosci 10:577–581.

Other interesting stories:
  • Developing good methods for using skin microbiome for forensics (paper)
  • Microbe discovered that consumes groundwater contaminant dioxane
  • Mucus-eating gut microbes can produce beneficial nutrients and vitamins (paper)
  • Making new beer and wine flavors with different yeast
  • Providing leaf microbiota to help endangered plants survive in wild

  • 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.

    Episode outline:

    Monday, January 8, 2018

    BacterioFiles 323 - Clostridium Capturing Carbon with Walter Sandoval

    Walter Sandoval in lab
    This episode: I talk with Dr. Walter Sandoval-Espinola, a researcher from Paraguay, now a postdoc at Harvard, about his discovery that biofuel-producing bacteria Clostridium beijerinckii can also transform CO2 and carbon monoxide into biofuels!

    Download Episode (37 MB, 40.4 minutes)

    Show notes:
    News item en español

    Find Walter on Twitter or LinkedIn

    Journal Paper:
    Sandoval-Espinola WJ, Chinn MS, Thon MR, Bruno-Bárcena JM. 2017. Evidence of mixotrophic carbon-capture by n-butanol-producer Clostridium beijerinckii. Sci Rep 7:12759.

    Other interesting stories:
  • Even microbes can help mix up lake water
  • Using drones to sample whale microbiome
  • Prebiotics could affect gut even without microbe involvement (paper)
  • Bacteria do better in changing environments when they cooperate
  • Newly discovered bacterial defense against phages (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.

    Monday, January 1, 2018

    BacterioFiles 322 - Parents' Partners Protect Plants

    Cacao tree with fruit pods
    By Luisovalles
    Own work, CC BY 3.0
    Happy New Year! This episode: Fungal endophytes transferred from healthy adult plant leaf litter help baby cacao plants resist disease!

    Thanks to Dr. Natalie Christian for her contribution!

    Download Episode (10.3 MB, 11.25 minutes)

    Show notes:
    Microbe of the episode: Lactobacillus virus Lb338-1

    News item
    Hear a CBC interview with Dr. Christian about this research

    Journal Paper:
    Christian N, Herre EA, Mejia LC, Clay K. 2017. Exposure to the leaf litter microbiome of healthy adults protects seedlings from pathogen damage. Proc R Soc B 284:20170641.

    Other interesting stories:
  • Using bacteria to clean up radioactive strontium from water (paper)
  • Ocean bacteria make themselves slippery instead of sticky to avoid predators (paper)
  • Which plants grow in tropics depends on how fungi interact with their seeds
  • Using an antibiotic-sensing protein to control antibiotic production in bacteria
  • Symbiotic fungi can help plants tolerate stresses better

  • 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.

    Episode outline: