Master 2 internship position (January-June 2020)

Title:

“Physiology of new hydrothermal microorganisms able to disproportionate inorganic sulfur compounds”
« Physiologie de nouveaux microorganismes hydrothermaux capables de réaliser la dismutation du soufre »

Scientific context:
Sulfur disproportionation is a metabolism rather original, rather poorly characterized and which has been recently discovered at high temperature. Microorganisms able to disproportionate inorganic sulfur compounds can use a same molecule as electron donor and acceptor (elemental sulfur, sulfite, thiosulfate) to produce energy. Sulfur disproportionating microorganisms known so far are all bacteria and are present in a wide diversity of environments (Ollivier et al. 2018). Moreover, sulfur disproportionation could be one of the first primitive microbial metabolism on earth according to some hypotheses (Philippot et al. 2007). Hydrothermal ecosystems are particularly rich in sulfur compounds or diverse redox states and could also be related to origin of life, and then make a perfect environment to search for new sulfur disproportionating microorganisms and describe their metabolic routes.

Internship aim:
The main goal of this Master 2 internship will be to discover and to characterize one or two new microorganisms able to disproportionate inorganic sulfur compounds, in order to expand our knowledge about these microorganisms and their energy-producing pathways. To do this, we have a collection of deep marine hydrothermal samples collected from all around the world, from which enrichment cultures are already in progress. As soon as a strain has been isolated, the aim will be to characterize its physiology and analyze its genomic potential, in order to describe the underlying metabolic pathways. Growth range and optimum will be determined for several physical chemical conditions (e.g. temperature, pH, salinity) by growth monitoring. Cell morphology will be determined by TEM and SEM. The sulfur species range and metabolic intermediates will be analyzed by combining analytical approaches (GC, IC) and colorimetric reactions. The phylogenetic position of the novel isolate will be analyzed by 16S rRNA gene sequence and full genome sequencing. The genome will also be annotated to describe the pathway of sulfur disproportionation. If motivated, the intern will also have the chance to test already known and characterized hydrothermal microbial species for their capability to grow via sulfur disproportionation. Culturing will be time and effort consuming and will require a good organization and time managing.

Candidate profile:
Motivated student in microbiology, metabolism and physiology areas.
Experience with anaerobic microbial cultures will be a bonus but not a requirement.
Curiosity and interest for wet lab culture experiments.

Contact:
This project is part of the NEPTUNE project, based on a French-Russian collaboration, which is focused on poorly documented metabolisms related to nitrogen and sulfur cycles in hydrothermal vents. It is also part of the Sino-French associated international laboratory MicrobSea. Internship will be made at the LM2E laboratory, at the IUEM institute, located in Plouzané (29) (https://wwz.ifremer.fr/umr6197/), under the supervision of Dr. Karine ALAIN and the 2nd year PhD student Maxime ALLIOUX.

Please send a motivation letter, a CV and transcripts from the last 3 years to
Maxime ALLIOUX :Maxime.Allioux@univ-brest.fr
And Karine ALAIN : Karine.Alain@univ-brest.fr

If you have any questions, please do not hesitate to contact us

References:
Finster, K. (2008). Microbiological disproportionation of inorganic sulfur compounds. J. Sulfur Chem. 29, 281–292. doi: 10.1080/17415990802105770
Ollivier, B., Zeyen, N., Gales, G., Hickman-Lewis, K., Gaboyer, F., Benzerara, K., & Westall, F. (2018). Importance of Prokaryotes in the Functioning and Evolution of the Present and Past Geosphere and Biosphere BT – Prokaryotes and Evolution (J.-C. Bertrand, P. Normand, B. Ollivier, & T. Sime-Ngando, eds.). https://doi.org/10.1007/978-3-319-99784-1_3
Philippot, P., Zuilen, M. Van, Lepot, K., Thomazo, C., Farquhar, J., & Kranendonk, M. J. Van. (2007). Early Archaean Microorganisms Preferred Elemental Sulfur, Not Sulfate, 317(September), 1534–1538. doi: 10.1126/science.1145861

Partager cet Article
Avez-vous aimé cet article ?
0 0
142 Comments
  1. purchase lipitor sale cost lipitor 40mg buy atorvastatin cheap

    Répondre
  2. proscar 5mg without prescription finasteride pills purchase forcan without prescription

    Répondre
  3. ciprofloxacin us – cipro brand buy augmentin 375mg pills

    Répondre
  4. buy cipro 1000mg online cheap – cheap bactrim 480mg augmentin cost

    Répondre
  5. order flagyl 200mg pills – buy azithromycin 250mg online cheap zithromax 250mg drug

    Répondre
  6. ciprofloxacin 500mg sale – ciplox 500 mg ca buy erythromycin 250mg generic

    Répondre
  7. stromectol otc – ciplox cost tetracycline 500mg for sale

    Répondre
  8. order valacyclovir 1000mg for sale – buy valtrex 500mg for sale acyclovir 800mg drug

    Répondre
  9. ampicillin canada buy acillin generic amoxil over the counter

    Répondre
  10. buy glucophage 1000mg without prescription – bactrim 480mg uk buy lincomycin 500 mg for sale

    Répondre
  11. buy generic clozapine 100mg – frumil without prescription buy famotidine cheap

    Répondre
  12. buy quetiapine 50mg online – cheap eskalith pill purchase eskalith generic

    Répondre
  13. clomipramine cost – order asendin 50mg without prescription buy sinequan 25mg online

    Répondre
  14. amoxiclav oral – linezolid 600mg price order ciprofloxacin 1000mg sale

    Répondre
  15. order generic amoxil – buy erythromycin sale buy ciprofloxacin 500mg generic

    Répondre
  16. buy azithromycin 250mg without prescription – sumycin 500mg brand buy ciplox pills

    Répondre
  17. buy cleocin generic – purchase doxycycline pills buy chloromycetin cheap

    Répondre
  18. Outstanding feature

    Répondre
  19. ivermectin 12mg tablet – aczone over the counter cefaclor pills

    Répondre
  20. albuterol inhalator buy online – order theophylline 400 mg pills order theo-24 Cr 400mg generic

    Répondre
  21. desloratadine cost – where can i buy triamcinolone order albuterol 2mg sale

    Répondre
  22. order micronase 5mg online – buy actos 15mg generic buy generic forxiga over the counter

    Répondre
  23. glucophage 1000mg tablet – metformin 1000mg without prescription buy precose 50mg for sale

    Répondre
  24. repaglinide for sale – buy cheap jardiance cost jardiance 25mg

    Répondre
  25. order terbinafine online cheap – order generic lamisil purchase grifulvin v generic

    Répondre
  26. rybelsus 14mg canada – buy rybelsus online cheap order DDAVP online

    Répondre
  27. famvir 500mg brand – acyclovir 400mg sale valaciclovir where to buy

    Répondre
  28. order lanoxin 250 mg generic – calan cost order lasix 100mg pills

    Répondre
  29. nitroglycerin usa – order generic nitroglycerin valsartan pill

    Répondre
  30. inhalers for asthma kitty – inhalers for asthma type asthma treatment roger

    Répondre
  31. ascorbic acid wheel – ascorbic acid fro ascorbic acid soar

    Répondre
  32. promethazine detail – promethazine credit promethazine along

    Répondre
  33. clarithromycin pills fill – mesalamine pills sir cytotec pills astonish

    Répondre
  34. fludrocortisone pills sock – protonix lone prevacid impress

    Répondre
  35. aciphex 10mg price – order generic metoclopramide purchase domperidone pills

    Répondre
  36. buy bisacodyl generic – buy generic bisacodyl cost liv52 20mg

    Répondre
  37. order zovirax generic – buy generic eukroma duphaston 10mg price

    Répondre
  38. forxiga buy online – order forxiga online order acarbose 50mg generic

    Répondre
  39. monograph 600mg ca – order etodolac 600 mg for sale buy cilostazol no prescription

    Répondre
  40. feldene usa – piroxicam cheap buy rivastigmine cheap

    Répondre
  41. piracetam 800mg over the counter – purchase sustiva online cheap purchase sinemet pills

    Répondre
  42. pin up yukle: pin-up kazino – pin-up 141

    Répondre
  43. hydrea brand – hydroxyurea price buy generic robaxin

    Répondre
  44. https://northern-doctors.org/# mexican mail order pharmacies

    Répondre
  45. buying prescription drugs in mexico online mexican northern doctors mexican border pharmacies shipping to usa

    Répondre
  46. Répondre
  47. https://northern-doctors.org/# buying prescription drugs in mexico online

    Répondre
  48. mexican drugstore online: Mexico pharmacy that ship to usa – mexico drug stores pharmacies

    Répondre
  49. mexico pharmacies prescription drugs mexican pharmacy online mexican drugstore online

    Répondre
  50. http://northern-doctors.org/# mexican online pharmacies prescription drugs

    Répondre
  51. buying from online mexican pharmacy: mexican pharmacy northern doctors – mexican pharmaceuticals online

    Répondre
  52. https://northern-doctors.org/# mexican border pharmacies shipping to usa

    Répondre
  53. https://northern-doctors.org/# pharmacies in mexico that ship to usa

    Répondre
  54. mexican rx online mexican pharmacy medication from mexico pharmacy

    Répondre
  55. https://northern-doctors.org/# mexico drug stores pharmacies

    Répondre
  56. mexico drug stores pharmacies: mexican northern doctors – mexico drug stores pharmacies

    Répondre
  57. http://northern-doctors.org/# п»їbest mexican online pharmacies

    Répondre
  58. mexico drug stores pharmacies п»їbest mexican online pharmacies mexico drug stores pharmacies

    Répondre
  59. https://northern-doctors.org/# mexican mail order pharmacies

    Répondre
  60. buying from online mexican pharmacy medicine in mexico pharmacies pharmacies in mexico that ship to usa

    Répondre
  61. https://northern-doctors.org/# mexico pharmacies prescription drugs

    Répondre
  62. https://northern-doctors.org/# medication from mexico pharmacy

    Répondre
  63. http://northern-doctors.org/# mexican border pharmacies shipping to usa

    Répondre
  64. purple pharmacy mexico price list mexican pharmacy online best online pharmacies in mexico

    Répondre
  65. https://northern-doctors.org/# mexican mail order pharmacies

    Répondre
  66. http://northern-doctors.org/# mexico drug stores pharmacies

    Répondre
  67. medication from mexico pharmacy northern doctors pharmacy mexico pharmacies prescription drugs

    Répondre
  68. https://northern-doctors.org/# buying from online mexican pharmacy

    Répondre
  69. https://northern-doctors.org/# best online pharmacies in mexico

    Répondre
  70. https://northern-doctors.org/# mexican online pharmacies prescription drugs

    Répondre
  71. mexico drug stores pharmacies mexican pharmacy mexico pharmacies prescription drugs

    Répondre
  72. https://northern-doctors.org/# mexico pharmacies prescription drugs

    Répondre
  73. mexican rx online mexican pharmacy online best online pharmacies in mexico

    Répondre
  74. divalproex price – amiodarone 200mg us topiramate 100mg pills

    Répondre
  75. buying from online mexican pharmacy cmqpharma.com reputable mexican pharmacies online

    Répondre
  76. mexican pharmacy mexican pharmacy online mexico pharmacies prescription drugs

    Répondre
  77. best online pharmacies in mexico mexican online pharmacy mexican border pharmacies shipping to usa

    Répondre
  78. п»їbest mexican online pharmacies mexico pharmacies prescription drugs mexico drug stores pharmacies

    Répondre
  79. п»їbest mexican online pharmacies mexico pharmacies prescription drugs purple pharmacy mexico price list

    Répondre
  80. pharmacies in mexico that ship to usa reputable mexican pharmacies online purple pharmacy mexico price list

    Répondre
  81. order disopyramide phosphate online – order lamotrigine pill buy thorazine without prescription

    Répondre
  82. best online pharmacies in mexico online mexican pharmacy pharmacies in mexico that ship to usa

    Répondre
  83. http://cmqpharma.com/# mexican rx online
    mexico drug stores pharmacies

    Répondre
  84. purchase spironolactone generic – dipyridamole without prescription buy generic revia online

    Répondre
  85. cytoxan buy online – stavudine uk buy generic trimetazidine for sale

    Répondre
  86. flexeril where to buy – vasotec 5mg brand vasotec 10mg ca

    Répondre
  87. buy ascorbic acid 500mg pill – purchase ascorbic acid generic order prochlorperazine pills

    Répondre
  88. durex gel order online – order durex gel cheap buy cheap generic zovirax

    Répondre
  89. mexican border pharmacies shipping to usa: cmq mexican pharmacy online – mexican pharmaceuticals online

    Répondre
  90. order rogaine online – rogaine canada order finasteride 5mg generic

    Répondre
  91. order generic leflunomide – risedronate pills cheap cartidin without prescription

    Répondre
  92. calan tablet – purchase tenoretic online cheap purchase tenoretic pill

    Répondre
  93. order atorlip online cheap – purchase vasotec online nebivolol 5mg sale

    Répondre
  94. cheap gasex pills – buy gasex diabecon pills

    Répondre
  95. http://foruspharma.com/# mexican rx online

    Répondre
  96. india pharmacy mail order: cheapest online pharmacy india – Online medicine home delivery

    Répondre
  97. canadian world pharmacy: pharmacy canadian – real canadian pharmacy

    Répondre
  98. indian pharmacies safe: mail order pharmacy india – buy prescription drugs from india

    Répondre
  99. http://canadapharmast.com/# thecanadianpharmacy

    Répondre
  100. top 10 pharmacies in india: cheapest online pharmacy india – indian pharmacies safe

    Répondre
  101. п»їbest mexican online pharmacies mexican mail order pharmacies buying from online mexican pharmacy

    Répondre
  102. mexican mail order pharmacies: best online pharmacies in mexico – mexico pharmacy

    Répondre
  103. top online pharmacy india: buy prescription drugs from india – indian pharmacy

    Répondre
  104. canadian online pharmacy reviews: reliable canadian pharmacy reviews – pharmacy wholesalers canada

    Répondre
  105. top 10 online pharmacy in india: buy medicines online in india – online shopping pharmacy india

    Répondre
  106. http://canadapharmast.com/# legal canadian pharmacy online

    Répondre
  107. safe online pharmacies in canada: canada drug pharmacy – canadian pharmacy 24 com

    Répondre
  108. п»їlegitimate online pharmacies india: indian pharmacy paypal – world pharmacy india

    Répondre
  109. canadian drugs pharmacy: canadian pharmacies comparison – reputable canadian pharmacy

    Répondre
  110. lasuna tablets – lasuna price cheap himcolin online

    Répondre
  111. https://foruspharma.com/# mexican rx online

    Répondre
  112. best canadian pharmacy online: best online canadian pharmacy – best canadian pharmacy online

    Répondre
  113. purple pharmacy mexico price list mexican pharmacy mexico pharmacies prescription drugs

    Répondre
  114. http://canadapharmast.com/# pharmacy canadian superstore

    Répondre
  115. india pharmacy: online shopping pharmacy india – india pharmacy mail order

    Répondre
  116. cheap canadian pharmacy: canadian pharmacy 1 internet online drugstore – northwest canadian pharmacy

    Répondre
  117. online pharmacy india: cheapest online pharmacy india – п»їlegitimate online pharmacies india

    Répondre
  118. mexican pharmacy: mexico drug stores pharmacies – buying prescription drugs in mexico online

    Répondre
  119. doxycycline pharmacy online: doxycycline 200 mg price in india – buy doxycycline online

    Répondre
  120. Répondre
  121. buying clomid tablets: get clomid – can i purchase generic clomid pills

    Répondre
  122. https://doxycyclinedelivery.pro/# cost of doxycycline prescription 100mg

    Répondre
  123. Répondre
  124. where to buy amoxicillin 500mg without prescription: amoxicillin price canada – amoxicillin online canada

    Répondre
  125. buy cipro online canada: buy cipro online usa – cipro ciprofloxacin

    Répondre
  126. Répondre
  127. buy ciprofloxacin over the counter: buy generic ciprofloxacin – ciprofloxacin order online

    Répondre
  128. Répondre
  129. amoxicillin 200 mg tablet: amoxil generic – where to get amoxicillin over the counter

    Répondre
  130. Répondre
  131. https://clomiddelivery.pro/# where can i buy clomid without rx

    Répondre
  132. 2985 doxycycline: buy generic doxycycline – doxycycline capsules

    Répondre
  133. can i order cheap clomid tablets: how can i get clomid no prescription – cost clomid without a prescription

    Répondre
  134. https://ciprodelivery.pro/# cipro 500mg best prices

    Répondre
  135. where can i get cheap clomid: order generic clomid pills – clomid medication

    Répondre
  136. Répondre
  137. buy cipro no rx: cipro pharmacy – buy generic ciprofloxacin

    Répondre
  138. https://amoxildelivery.pro/# where can i buy amoxocillin

    Répondre
  139. https://doxycyclinedelivery.pro/# where can i buy doxycycline without prescription

    Répondre
  140. buy paxlovid online: paxlovid for sale – paxlovid buy

    Répondre
  141. https://amoxildelivery.pro/# buy amoxicillin 500mg capsules uk

    Répondre
  142. doxycycline rx: doxycycline 75 mg cost – doxycycline tetracycline

    Répondre

Laisser une réponse

Votre adresse e-mail ne sera pas publiée. Les champs requis sont marqués *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>