Methanocatella millerae SM9

From Global Methane Hub Wikipedia
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Introduction

Methanocatella millerae SM9 (formerly Methanobrevibacter millerae) was isolated from the rumen of a sheep fed a fresh forage diet[1]. Although initially identified as Methanobrevibacter sp. or M. smithii, SM9 shares 99% 16S rRNA gene sequence identity with the M. millerae type strain ZA-10ᵀ (DSM 16643), supporting its assignment to this species [2]. Its robust growth and high plating efficiency make SM9 a strain of particular interest to the Global Methane Hub.

Global Methane Hub Metadata

Origin: Leibniz Institute DSMZ, Germany
Sequenced by: Plasmidsaurus, ONT sequencing
Assembled by: Nana Shao
Methylome called by: William G. Alexander
Methyltransferases cloned by: Roy Rodriguez Carrero
MIC and Culturing conditions by: Nana Shao
Transformation by:

Genome

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DefenseFinder Results

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Methylome

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Methylating E. coli

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Culturing Conditions

M. millerae SM9 is cultivated in MMSM medium at 37°C and 50 rpm with a 207 kPa of H2/CO2 (80:20, v/v) as an energy substrate for 2-4 days. This methanogen can also be cultivated on MMSM plates using 1.5% agar as a gelling agent with the same H2/CO2 as an energy substrate for 3-7 days.

Antimicrobial MIC Tests

Antibiotics Concentration
Liquid Solid
Puromycin
nourseothricin μM

Protocols

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Transformation Results

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  1. ↑ 1. Joblin KN. (1999) Ruminal acetogens and their potential to lower ruminant methane emissions. Australian Journal of Agricultural Research 50, 1307–1314. https://doi.org/10.1071/AR99004 2. Kelly WJ, Pacheco DM, Li D, Attwood GT, Altermann E, Leahy SC. The complete genome sequence of the rumen methanogen Methanobrevibacter millerae SM9. Stand Genomic Sci. 2016 Aug 17;11:49. doi: 10.1186/s40793-016-0171-9.