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	<id>https://actinobase.org/index.php?action=history&amp;feed=atom&amp;title=R2YE</id>
	<title>R2YE - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://actinobase.org/index.php?action=history&amp;feed=atom&amp;title=R2YE"/>
	<link rel="alternate" type="text/html" href="https://actinobase.org/index.php?title=R2YE&amp;action=history"/>
	<updated>2026-10-17T19:28:50Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.39.3</generator>
	<entry>
		<id>https://actinobase.org/index.php?title=R2YE&amp;diff=1317&amp;oldid=prev</id>
		<title>LisAlgora at 13:27, 4 September 2019</title>
		<link rel="alternate" type="text/html" href="https://actinobase.org/index.php?title=R2YE&amp;diff=1317&amp;oldid=prev"/>
		<updated>2019-09-04T13:27:30Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:27, 4 September 2019&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l20&quot;&gt;Line 20:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 20:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*1.5 ml L-proline (20%)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*1.5 ml L-proline (20%)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*10 ml TES buffer (5.73%, adjusted to pH7.2)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*10 ml TES buffer (5.73%, adjusted to pH7.2)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.2 ml &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;&lt;/del&gt;Trace element solution&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.2 ml &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;Trace element solution&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.5 ml NaOH (1N) (unsterilised is okay)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.5 ml NaOH (1N) (unsterilised is okay)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.75 ml Required growth factors for auxotrophs&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*0.75 ml Required growth factors for auxotrophs&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;sup&gt;1&amp;lt;/sup&gt;Trace element solution(l&amp;lt;sup&gt;-1&amp;lt;/sup&gt;):&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**40 mg ZnCl&amp;lt;sub&gt;2&amp;lt;/sub&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**200 mg FeCl&amp;lt;sub&gt;3&amp;lt;/sub&gt;.6H&amp;lt;sub&gt;2&amp;lt;/sub&gt;O&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**10 mg CuCl&amp;lt;sub&gt;2&amp;lt;/sub&gt;.2H&amp;lt;sub&gt;2&amp;lt;/sub&gt;O&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**10 mg MnCl&amp;lt;sub&gt;2&amp;lt;/sub&gt;.4H&amp;lt;sub&gt;2&amp;lt;/sub&gt;O&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**10 mg Na&amp;lt;sub&gt;2&amp;lt;/sub&gt;B&amp;lt;sub&gt;4&amp;lt;/sub&gt;O&amp;lt;sub&gt;7&amp;lt;/sub&gt;.10H&amp;lt;sub&gt;2&amp;lt;/sub&gt;O&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;**10 mg (NH&amp;lt;sub&gt;4&amp;lt;/sub&gt;)&amp;lt;sub&gt;6&amp;lt;/sub&gt;Mo&amp;lt;sub&gt;7&amp;lt;/sub&gt;O&amp;lt;sub&gt;24&amp;lt;/sub&gt;.4H&amp;lt;sub&gt;2&amp;lt;/sub&gt;O&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>LisAlgora</name></author>
	</entry>
	<entry>
		<id>https://actinobase.org/index.php?title=R2YE&amp;diff=682&amp;oldid=prev</id>
		<title>LisAlgora: Created page with &quot;=R2YE=  R2YE medium is a variation of R2 containing yeast extract.  ==Preparation== Make up the following solution: *103 g Sucrose *0.25 g K&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt; *10.12 g...&quot;</title>
		<link rel="alternate" type="text/html" href="https://actinobase.org/index.php?title=R2YE&amp;diff=682&amp;oldid=prev"/>
		<updated>2019-07-26T17:16:02Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;=R2YE=  R2YE medium is a variation of R2 containing yeast extract.  ==Preparation== Make up the following solution: *103 g Sucrose *0.25 g K&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;SO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; *10.12 g...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;=R2YE=&lt;br /&gt;
&lt;br /&gt;
R2YE medium is a variation of R2 containing yeast extract.&lt;br /&gt;
&lt;br /&gt;
==Preparation==&lt;br /&gt;
Make up the following solution:&lt;br /&gt;
*103 g Sucrose&lt;br /&gt;
*0.25 g K&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;SO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;&lt;br /&gt;
*10.12 g MgCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;.6H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
*10 g Glucose&lt;br /&gt;
*0.1 g Difco Casaminoacids&lt;br /&gt;
*800 ml dH&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
&lt;br /&gt;
Pour 80 ml of the solution into 250 ml Erlenmeyer flasks each containing 2.2 g Difco Bacto agar.&lt;br /&gt;
Sterilise by autoclaving.&lt;br /&gt;
At the time of use, remelt the medium and add to each flask the following autoclaved solutions in the order listed:&lt;br /&gt;
*5 ml Difco yeast extract (10%)&lt;br /&gt;
*1 ml KH&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;PO&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; (0.5%)&lt;br /&gt;
*8 ml CaCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;.2H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O (3.68%)&lt;br /&gt;
*1.5 ml L-proline (20%)&lt;br /&gt;
*10 ml TES buffer (5.73%, adjusted to pH7.2)&lt;br /&gt;
*0.2 ml &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;Trace element solution&lt;br /&gt;
*0.5 ml NaOH (1N) (unsterilised is okay)&lt;br /&gt;
*0.75 ml Required growth factors for auxotrophs&lt;br /&gt;
&lt;br /&gt;
&amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;Trace element solution(l&amp;lt;sup&amp;gt;-1&amp;lt;/sup&amp;gt;):&lt;br /&gt;
**40 mg ZnCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;&lt;br /&gt;
**200 mg FeCl&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;.6H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
**10 mg CuCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;.2H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
**10 mg MnCl&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;.4H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
**10 mg Na&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;B&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;7&amp;lt;/sub&amp;gt;.10H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
**10 mg (NH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;)&amp;lt;sub&amp;gt;6&amp;lt;/sub&amp;gt;Mo&amp;lt;sub&amp;gt;7&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;24&amp;lt;/sub&amp;gt;.4H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Uses==&lt;br /&gt;
*Protoplasts regeneration&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Notes==&lt;br /&gt;
&amp;#039;&amp;#039;[[Streptomyces clavuligerus]]&amp;#039;&amp;#039; does not utilise glucose and it must be substituted by glycerol.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
&lt;br /&gt;
Kieser, T., Bibb, M.J., Buttner, M.J., Chater, K.F. and Hopwood, D.A. (2000) Practical Streptomyces Genetics: John Innes Foundation, Norwich Research Park, Colney, Norwich NR4 7UH, UK&lt;br /&gt;
&lt;br /&gt;
Thompson CJ, Ward JM, Hopwood DA (1980) DNA cloning in &amp;#039;&amp;#039;Streptomyces&amp;#039;&amp;#039;: resistance genes from antibiotic-producing species. &amp;#039;&amp;#039;Nature&amp;#039;&amp;#039;, &amp;#039;&amp;#039;&amp;#039;286&amp;#039;&amp;#039;&amp;#039;, 525-527.&lt;/div&gt;</summary>
		<author><name>LisAlgora</name></author>
	</entry>
</feed>