Podcasts about prokaryote

TWiV reviews the appearance of poliovirus in Europe, mystery disease in DRC, global burden of Chikungunya, viruses of parasitic nematodes that induce antibody responses in vertebrate hosts, and picobirnaviruses, do they infect eukaryotes or prokaryotes? Hosts: Vincent Racaniello, Alan Dove, and Jolene Ramsey Subscribe (free): Apple Podcasts, RSS, email Become a patron of TWiV! Links for this episode ASV 2025 Write your senators about RFK Jr Support science education at MicrobeTV Poliovirus in Europe (WHO) DRC mystery disease (Reuters) Global burden of chikungunya (BMJ Global Health) RNA viruses of parasitic nematodes (Nat Micro) Picobirnaviruses encode bacterial lysins (PNAS) Prokaryotic ribosome binding site in picobirnavirus genome (Virology) Letters read on TWiV 1175 Timestamps by Jolene. Thanks! Weekly Picks Alan – Sondehub and radiosonde hunting Jolene – Book “10 to 25: The Science of Motivating Young People” By David Yeager Vincent – Dr. Vinay Prasad “Sabotaging RFK Jr's Confirmation Will Increase Vaccine Hesitancy” & “Doctors Criticizing RFK Jr. Paved the Way for His Ascendancy” Listener Picks Syl – Foldscope Jennifer – minutiae Intro music is by Ronald Jenkees Send your virology questions and comments to twiv@microbe.tv Content in this podcast should not be construed as medical advice.

What do you know about prokaryote structure and the gram stain? Bacteria are members of a unique taxonomic kingdom consisting of prokaryotic unicellular organisms. Prokaryote is a term from ancient Greek meaning “before the kernel.” The kernel in this case is a nucleus, which prokaryotes lack. Prokaryotes also do not have any membrane-bound organelles. In fact, many of the organelles found in eukaryotes—like an endoplasmic reticulum, mitochondria, Golgi apparatus, lysosomes, and peroxisomes—are completely absent in prokaryotes. Bacteria first began to be identified by a “defective method.” Or so its Danish inventor, a recent medical school grad named Hans Christian Gram, deemed it in 1884. Gram was working with lung tissue from cadavers who had died of infections from Streptococcus pneumoniae and Klebsiella pneumoniae when he discovered that those organisms reacted differently to certain substances under the microscope, and—voilà—the Gram stain was born, to identify gram-positive bacteria. The defect he mentioned was overcome by German pathologist Carl Weigert, who added a final step to Gram's procedure and gave us the method to identify gram-negative bacteria. We're still using the same techniques more than 130 years later! After listening to this AudioBrick, you should be able to: Describe the structure of prokaryotic cells. Discuss the physiologic niche of bacteria and their growth characteristics. Describe the staining characteristics and classification and identification of bacteria. To learn more about prokaryote structure and the gram stain, check out the original brick on Gastrointestinal Regulatory Substances from our Gastrointestinal collection, which is available for free. Learn more about Rx Bricks by signing up for a free USMLE-Rx account: www.usmle-rx.com You will get 5 days of full access to our Rx360+ program, including nearly 800 Rx Bricks.  After the 5-day period, you will still be able to access over 150 free bricks, including the entire collections for General Microbiology and Cellular and Molecular Biology. *** If you enjoyed this episode, we'd love for you to leave a review on Apple Podcasts.  It helps with our visibility, and the more med students (or future med students) listen to the podcast, the more we can provide to the future physicians of the world. Follow USMLE-Rx at: Facebook: www.facebook.com/usmlerx Blog: www.firstaidteam.com Twitter: https://twitter.com/firstaidteam Instagram: https://www.instagram.com/firstaidteam/ YouTube: www.youtube.com/USMLERX Learn how you can access over 150 of our bricks for FREE: https://usmlerx.wpengine.com/free-bricks/

Nels and Vincent explain how homology searches of anti-phage systems in eukaryotic genomes can be used to discover proteins of the human immune system. Hosts: Nels Elde and Vincent Racaniello Subscribe (free): Apple Podcasts, RSS, email Become a patron of TWiEVO Links for this episode Join the MicrobeTV Discord server Human antiviral effectors from antiphage systems (Cell Host Micro) Timestamps by Jolene Science Picks Nels – Pathoplexus.org Vincent – Can science cure its addiction to plastic? Music on TWiEVO is performed by Trampled by Turtles Send your evolution questions and comments to twievo@microbe.tv

TWiM presents evidence that over half of human pathogenic diseases are impacted by climate change, and considers how a novel prokaryote discovered next to an underground stream illuminates the pathway to multicellularity. Hosts: Vincent Racaniello, Michael Schmidt, Petra Levin and Mark Martin. Become a patron of TWiM. Links for this episode Climate change and pathogenic diseases (Nat Climate Change) Impacts of climate change on human diseases (MoraLAB) Cave bacteria illuminate pathway to multicellularity (eLife) Commentary on novel cave bacteria (eLife) Karst landscapes (National Park Service) Take the TWiM Listener survey! Music used on TWiM is composed and performed by Ronald Jenkees and used with permission. Send your microbiology questions and comments (email or recorded audio) to twim@microbe.tv

This episode: A bacterial communication signal makes algae stop growing, which helps them survive virus attacks! Download Episode (5.3 MB, 7.7 minutes) Show notes: Microbe of the episode: Veillonella parvula   Takeaways Many interesting interactions between microbes take place in the ocean. As single-celled organisms lacking complex sensory organs, many such interactions and communications are mediated by chemical signals. Some bacteria, for example, each produce small amounts of certain chemicals and release them into the environment. When the concentration of the chemical signal builds up to a certain point, the bacteria change their behavior to take advantage of their high numbers that must be present to produce so much of the signal. This process is called quorum sensing.   Some of these chemical signals can affect the behavior of organisms other than bacteria also. In this study, a common marine algal species was found to stop growing in response to a certain bacterial signal. This chemical inhibits an enzyme required for the algae to produce nucleotides to replicate their genomes. As a result, the algae are able to resist destruction by a virus that would otherwise decimate their populations.   Journal Paper: Pollara SB, Becker JW, Nunn BL, Boiteau R, Repeta D, Mudge MC, Downing G, Chase D, Harvey EL, Whalen KE. 2021. Bacterial Quorum-Sensing Signal Arrests Phytoplankton Cell Division and Impacts Virus-Induced Mortality. mSphere 6:e00009-21. Other interesting stories: Comparing ancient gut microbes from fecal fossils to modern gut communities / also this one   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: Apple Podcasts, Google Podcasts, Android, or RSS. Support the show at Patreon, or check out the show at Twitter or Facebook.

What do you know about prokaryote structure and the gram stain? Bacteria are members of a unique taxonomic kingdom consisting of prokaryotic unicellular organisms. Prokaryote is a term from ancient Greek meaning “before the kernel.” The kernel in this case is a nucleus, which prokaryotes lack. Prokaryotes also do not have any membrane-bound organelles. In fact, many of the organelles found in eukaryotes—like an endoplasmic reticulum, mitochondria, Golgi apparatus, lysosomes, and peroxisomes—are completely absent in prokaryotes. Bacteria first began to be identified by a “defective method.” Or so its Danish inventor, a recent medical school grad named Hans Christian Gram, deemed it in 1884. Gram was working with lung tissue from cadavers who had died of infections from Streptococcus pneumoniae and Klebsiella pneumoniae when he discovered that those organisms reacted differently to certain substances under the microscope, and—voilà—the Gram stain was born, to identify gram-positive bacteria. The defect he mentioned was overcome by German pathologist Carl Weigert, who added a final step to Gram's procedure and gave us the method to identify gram-negative bacteria. We're still using the same techniques more than 130 years later! After listening to this AudioBrick, you should be able to: Describe the structure of prokaryotic cells. Discuss the physiologic niche of bacteria and their growth characteristics. Describe the staining characteristics and classification and identification of bacteria. To learn more about prokaryote structure and the gram stain, check out the original brick on Gastrointestinal Regulatory Substances from our Gastrointestinal collection, which is available for free. Learn more about Rx Bricks by signing up for a free USMLE-Rx account: www.usmle-rx.com You will get 5 days of full access to our Rx360+ program, including nearly 800 Rx Bricks.  After the 5-day period, you will still be able to access over 150 free bricks, including the entire collections for General Microbiology and Cellular and Molecular Biology. *** If you enjoyed this episode, we'd love for you to leave a review on Apple Podcasts.  It helps with our visibility, and the more med students (or future med students) listen to the podcast, the more we can provide to the future physicians of the world. Follow USMLE-Rx at: Facebook: www.facebook.com/usmlerx Blog: www.firstaidteam.com Twitter: https://twitter.com/firstaidteam Instagram: https://www.instagram.com/firstaidteam/ YouTube: www.youtube.com/USMLERX Learn how you can access over 150 of our bricks for FREE: https://usmlerx.wpengine.com/free-bricks/

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تختلف خلية البكتيرية بعض الشيء عن الخلايا المتواجدة في النباتات والحيوانات، فخلايا البكتيريا لا تضم نواة Nucleus كما ترتبط العضيات organelles معا بالغشاء باستثناء الريبوسومات. تمتلك البكتيريا أيضا شعرات Pili وأسواط flagella وكيس خلوي في بعض الأحيان، ما يميزها عن خلايا الحيوانات والنباتات، علماً أن الكائن الحي الذي لا يشمل على نواة يسمى بدائيات النوى Prokaryote. إذا فالخلية البكتيرية تضم: الجسم الأساسي: وهو يعقد قاعدة السوط التي تسمح له بالدوران والاستدارة. الكيس الخلوي: طبقة خارجية لجدار الخلية، علماً أن هذا الكيس لا يتواجد لدى جميع أنواع البكتيريا. جدار الخلية: طبقة رفيعة خارج الغشاء البلازمي، ويقع في حدود الكيس الخلوي إن وجد. الحمض النووي الريبي المنزوع الاكسجين DNA: هو الذي يضم جميع المكونات الجينية المستخدمة في تطور وعمل البكتيريا، وتتواجد في هيولي الخلية Cytoplasm. الهيولي: هو عبارة عن مادة هلامية داخل الغشاء البلازمي، حيث تتواجد المكونات الجينية والريبوسومات في داخله. السوط: وهو الذي تستخدمه البكتيريا في الحركة والدفع، علماً أن بعض أنواع البكتيريا تمتلك أكثر من سوط واحد.  شعرات: هي التي تمكن البكتيريا من الالتصاق على الأسطح وتحويل المركبات الجينية إلى الخلايا الأخرى، كما كشفت دراسة علمية نشرت في مجلة Proceedings of the National Academy of Sciences أن هذه الشعرات مسؤولة عن الإصابة بإسهال السفر. الغشاء البلازمي: يعمل على توليد الطاقة ونقل المواد الكيميائية، فهذه المواد تكون قادرة على العبور من خلال الغشاء. الريبوسومات: هو المكان الذي يتم تصنيع البروتينات فيه، وهي عبارة عن عضيات صغيرة مصنوعة من حمض نووي ريبي غني بالحبيبات. كيف تتغذى البكتيريا وتتكاثر؟ هناك عدة طرق تمكن البكتيريا من تغذية نفسها، وهي تشمل: غيري التغذية Heterotrophs: أي أنها تتغذى على كائنات حية أخرى، بعض أنواع البكتيريا تقتل الكائن الذي تتغذى عليه في حين أن بعضها الآخر يقوم بمساعدتها. ذاتي التغذية Autotrophs: أي أن هذا النوع من البكتيريا يقوم بصنع طعامه بنفسه، ويتم هذا على طريقتين: 1- البناء الضوئي Photosynthesis: حيث يتم استخدام أشعة الشمس وثاني أكسيد الكربون CO2 والماء لصناعة الغذاء للبكتيريا. 2- التمثيل الكيميائي Chemosynthesis: في هذه الطريقة تستخدم البكتيريا ثاني أكسيد الكربون والماء وبعض المواد الكيميائية مثل الأمونيا بهدف صنع غذائها. ولكن كيف تتكاثر هذه البكتيريا؟ هناك عدة طرق تستخدمها البكتيريا للتكاثر، وتشمل: الانقسام الثنائي Binary fission: وهي لا تتطلب وجود ذكر وأنثى، بل تتكاثر من تلقاء نفسها، حيث ينمو جدار الخلية من المركز ليشكل خليتين صغيرتين تنقسما فيما بعد. إعادة تركيب بكتيري Bacterial recombination: تأتي عملية التكاثر هذه لتحل مشكلة عملية الإنقسام الثنائي، إذ أنه في العملية الأولى تكون البكتيريا الجديدة مطابقة جداً للبكتيريا القديمة، بالتالي يكون من السهل القضاء عليها باستخدام المضادات البكتيرية، وتتم عملية التكاثر هذه عن طريق: 1- الاقتران: أي نقل بعض الجينات من خلية بكتيرية إلى أخرى عن الطريق اتصالهما معا 2- التحول: بعض الخلايا البكتيريا قادرة على انتزاع الحمض النووي من البيئة المحيطة. 3- التنبيغ Transduction:  تصاب البكتيريا بنوع من الفيروسات التي تسمى العاثية Bacteriophages التي تقوم بإدخال الجينات الخاصة بها إلى البكتيريا، لتتكاثر هذه الجينات مع جينات البكتيريا في داخلها. ادعموني على منصة patreon من خلال مساهماتكم على الرابط التالي:: www.patreon.com/microinmin تابعوا صفحتي على فيس بوك من خلال الرابط التالي :: www.facebook.com/microinmin #podcast #microbiology_in_aminute

This episode: Bacterial symbionts of amoebas help them survive bacterial infection, and prevent pathogens from spreading to others as much! Download Episode (7.5 MB, 8.1 minutes) Show notes: Microbe of the episode: Eubacterium dolichum News item Takeaways Amoebas are free-living, single-celled organisms, but they have some things in common with some cells of our immune system (macrophages). For example, certain bacterial pathogens can infect both in similar ways. So it can be useful to study the interactions of amoebas and bacteria to learn about our own immune defenses. In this study, the amoeba Acanthamoeba castellanii has another bacterial symbiont that helps it resist killing by the bacterial pathogen Legionella pneumophila. Once the amoebas recovered from the infection, they were more resistant to future challenges. Even better, the symbiont prevented the pathogen from transforming into a more spreadable form like it does when infecting amoebas alone. Journal Paper: König L, Wentrup C, Schulz F, Wascher F, Escola S, Swanson MS, Buchrieser C, Horn M. 2019. Symbiont-Mediated Defense against Legionella pneumophila in Amoebae. mBio 10:e00333-19. Other interesting stories: RNA-cutting CRISPR/Cas system induces bacterial dormancy to prevent phage replication Gut bacteria degrade/modify many different kinds of drugs (paper)   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: Apple Podcasts, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

Brad puts the dreaded “P-word” (Prokaryote) to rest and introduces the Archaea, the 3rd domain of life only recognized as distinct in 1977.

This episode: Purple phototrophic bacteria could use certain kinds of wastewater, along with electric current, to produce valuable products like hydrogen without much waste! Thanks to Dr. Ioanna Vasiliadou for her contribution! Download Episode (12.7 MB, 13.9 minutes) Show notes: Microbe of the episode: Streptomyces tendae News item Takeaways Purple phototrophic bacteria can take light energy and use it to help power their metabolism. They're not dependent on it like plants, but can use light or other energy sources for their versatile metabolism. This versatility makes them very interesting candidates for industrial biotechnology applications. These bacteria can take in various combinations of nutrients and produce a number of different valuable products, including protein-rich feed, bioplastics, and biofuels such as hydrogen gas. Today's study shows they can also take up electrons directly to help make their biofuel production process even more environmentally sustainable. Journal Paper: Vasiliadou IA, Berná A, Manchon C, Melero JA, Martinez F, Esteve-Nuñez A, Puyol D. 2018. Biological and Bioelectrochemical Systems for Hydrogen Production and Carbon Fixation Using Purple Phototrophic Bacteria. Front Energy Res 6:107. Other interesting stories: Looking at which microbes degrade classic paintings, and how Neurotransmitter-consuming gut microbes correlated with fewer signs of depression (paper) Phages don't always transfer the same way in fecal microbe transplants (paper)   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: Apple Podcasts, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

This episode: The bacterial immune system, CRISPR-Cas, can enhance gene transfer via transduction (phages carrying bacteria DNA) despite preventing it via conjugation! Download Episode (14.9 MB, 16.3 minutes) Show notes: Microbe of the episode: Human polyomavirus 8 Journal Paper: Watson BNJ, Staals RHJ, Fineran PC. 2018. CRISPR-Cas-Mediated Phage Resistance Enhances Horizontal Gene Transfer by Transduction. mBio 9:e02406-17. Other interesting stories: Using yeast in packets to measure exposure to radiation Light-controlled swimming bacteria can be shaped into complex patterns Special bacteria could help people lacking an enzyme avoid food toxicity   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: Apple Podcasts, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

This episode: Very small ocean algae consume bacterial prey of a similar size to themselves by engulfing them only partially! Download Episode (8.9 MB, 9.7 minutes) Show notes: Microbe of the episode: Bradyrhizobium japonicum Journal Paper: Kamennaya NA, Kennaway G, Fuchs BM, Zubkov MV. 2018. “Pomacytosis”—Semi-extracellular phagocytosis of cyanobacteria by the smallest marine algae. PLOS Biol 16:e2003502. Other interesting stories: Using nanomagnets to control quorum sensing by pulling bacteria together (paper)   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: Apple Podcasts, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

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   Email questions or comments to bacteriofiles at gmail dot com. Thanks for listening! Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

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 at gmail dot com. Thanks for listening! Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook  

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 at gmail dot com. Thanks for listening! Subscribe: iTunes, RSS, Google Play. Support the show at Patreon, or check out the show at Twitter or Facebook

This episode: Microbes with complementary abilities help each other grow and produce useful stuff from the air! Download Episode (12 MB, 13.2 minutes) Show notes: Journal Paper: Smith MJ, Francis MB. 2016. A designed A. vinelandii-S. elongatus coculture for chemical photoproduction from air, water, phosphate and trace metals. ACS Synth Biol 5:955–961. Other interesting stories: Bypass surgery might fix diabetes by modifying gut community Using bacteria to make wrinkly graphene with different properties Figuring out what controls where microbes live in plants Gut bacteria maybe related to rheumatoid arthritis Gut bacteria maybe related to multiple sclerosis   Post questions or comments here or email to bacteriofiles at gmail dot com. Thanks for listening! Subscribe at iTunes or Google Play, support the show at Patreon, or check out the show at Twitter or Facebook  

I denne spændende podcast fortæller Katrine og Kim om cellen. Cellens opbygning, dens organeller og endelig om udvalgte celletyper i mennesket.

This episode: Bacteria from wastewater treatment sludge can produce lots of biodegradable plastic! Download Episode (7.1 MB, 7.75 minutes)Show notes:Journal Paper Other interesting stories: Soil bacterium spores could treat tumors when injected In mice, antibiotics early in life disrupt metabolism Figuring out what our microbiome does in the body after we die (paper) Microbes affect geological formations in caves Insect gut microbes may be good source of new antibiotics Post questions or comments here or email to bacteriofiles at gmail dot com. Thanks for listening! Subscribe at iTunes, check out the show at Twitter or Facebook   Image: Colonies of B. subtilis. By: Wikipedia user: Debivort

This episode: A protein from gut bacteria has been tentatively linked with a human protein related to eating disorders! Download Episode (11.4 MB, 12.4 minutes)Show notes:News item/Journal Paper Other interesting stories: Plant virus affects parasitism suffered by insect that carries the virus (paper) Bacteria could help make more powerful lasers (paper) Gut microbes can control gene expression of gut cells somewhat Using bacterial immune system to turn off HPV defenses in cervical cancer Gut community composition could be used to detect cancer Post questions or comments here or email to bacteriofiles at gmail dot com. Thanks for listening! Subscribe at iTunes, check out the show at Twitter or Facebook

Vincent, Elio, and Michael discuss a symbiosis between a nitrogen-fixing cyanobacteria and a single-celled eukaryotic alga.   Links for this episode:   Unicellular cyanobacterium and alga symbiosis (Science) Diversity of nitrogen-fixing cyanobacterium and its host (Environ Micro) Talmudic Question #4 (answer) Talmudic Question #2 Coccolithophore (Wikipedia) Visit microbeworld.org/twim to view the complete shownotes and entire back catalog.

This episode: A virus has borrowed a bacterium's defenses to infect better! Download Episode (5 MB, 5.5 minutes)Show notes:News Item 1/News Item 2/Journal Paper Other interesting stories: Signals from neighbors tell bacteria to induce phage resistance Man-made wetland filled with bacteria could clean waste pharmaceuticals from water Bacteria seem to have specific relationships with apple tree flowers Reintroducing healthy gut community clears out drug-resistant pathogens in mice Weaving bacteriophages into packaging to help food safety (paper) Post questions or comments here or email to bacteriofiles at gmail dot com. Thanks for listening! Subscribe at iTunes, check out the show at Twitter or Facebook

Hosts: Vincent Racaniello, Rich Condit, Alan Dove, and Kathy Spindler The TWiV four discuss an mRNA-based influenza vaccine, and a phage tubulin that forms a filamentous array in the host cell that is needed for positioning viral DNA. Links for this episode: mRNA vaccine against influenza (Nat Biotech) Phage tubulin assembles dynamic filaments (Cell) Viral skeleton (The Scientist) Not unorganized bags of enzymes (TWiM 28) Bacterial cytoskeleton (FEMS Micro Rev) Triangulation number (jpg) Letters read on TWiV 211 Weekly Science Picks Rich - Ocean Global Shark TrackerAlan - The Field Book ProjectKathy - How to manipulate an army of zombiesVincent - Science sculpture Listener Pick of the Week Stephen - WEHI.TV Send your virology questions and comments (email or mp3 file) to twiv@twiv.tv

This episode: Scientists match up bacteria to produce extra fuel from plant waste! Download Episode (4 MB, 4.5 minutes)Show notes:News item/Journal Paper Other interesting stories: Using bacteria to reclaim a garbage dump from contaminants Researcher finds mine microbes using radioactivity for energy Fiber seems to be important for health due to bacteria Interesting microbes found around mummies on mountaintop Figuring out how heat-loving microbes break down cellulose Post questions or comments here or email to bacteriofiles at gmail dot com . Thanks for listening! Subscribe at iTunes, check out the show at Twitter or SciencePodcasters.org

This episode: Discovery of a bacterium infected by two distinct organisms at the same time! Download Episode (3.5 MB, 3.75 minutes)Show notes:Journal Paper Other interesting stories: Floating rocks, microbes, and the origin of life Diversity of plants and microbes helps prevent allergies Probiotics help prevent antibiotic-induced diarrhea Wind erosion is problematic both for soil and beneficial microbes Selective nutrition and other strategies could help good bacteria compete with pathogens Post questions or comments here or email to bacteriofiles at gmail dot com . Thanks for listening! Subscribe at iTunes, check out the show at Twitter or SciencePodcasters.org

This podcast revisits the taxonomic system of life and asks the question: "is the word Prokaryote out of date?" In this world of science literature it is ever important that we are all on the same page. Join as we clarify a topic that many amateur and professional scientists struggle with. We also introduce our next podcast topic... the HeLa cells. These cells have played an important role in medical microbiology and continue to be used to this day in universities around the world to examine the effects of various stimulus on this human cell line. But all is not as noble as it seems....

Vincent, Dickson, Alan, and Rich answer listener questions about poliovirus, social media, dengue, influenza, evolution, gel filtration, and much more.

This episode: Bacteria smell predators and cluster together for protection! Download Episode (2.5 MB, 2.75 minutes)Show notes:Journal paper Other interesting stories: Bacteria as part of self-healing concrete Making sunscreen from bacteria How old are viruses? Paper on how probiotics may work Insect-borne plant pathogen may eat its insect carrier Post questions or comments here or email to bacteriofiles at gmail dot com This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Thanks for listening! Subscribe at iTunes, check out the show at Twitter or SciencePodcasters.org

On episode #93 of the podcast This Week in Virology, Vincent, Alan, and Rich answer listener questions about lab procedures, prokaryotes, endogenous retroviruses, the iPad and teaching, prions, mimivirus, splitting water with viruses, and the polio outbreak in Tajikistan. Host links Vincent Racaniello, Alan Dove, and Rich Condit Links for this episode: Biomedical Advanced Research and Development Authority (BARDA) SIGA responds to BARDA request for smallpox antiviral BARDA contract for filovirus vaccine What is a Ph.D? (pdf) HHMI resources for early career scientists Pace article on abandoning prokaryote (Nature) Three domains of life (Forterre article) Mechanoenzymatic cleavage of Von Willebrand's factor (Science) Splitting water with viruses WHO coverage on Tajikstan polio outbreak Wild type polio infection in immunized Indian children (JID) Letters read on TWiV 93 Weekly science picks: Alan - Southern Fried Science Rich - Tree of Life web project Vincent - Dickson Despommier at Big Think