<description>&lt;p dir="ltr"&gt;PEA agar is often treated as "the gram-positive plate," but that shortcut can lead to real bench-level mistakes.&lt;/p&gt; &lt;p dir="ltr"&gt;In this MicroMinutes episode, we break down what phenylethyl alcohol agar actually does, why growth on PEA does not automatically mean an organism is gram-positive, and how selective media can change colony appearance and behavior.&lt;/p&gt; &lt;p dir="ltr"&gt;You'll hear about:&lt;/p&gt; &lt;ul&gt; &lt;li dir="ltr" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;What PEA inhibits — and what it doesn't&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;Why Pseudomonas aeruginosa can grow quite well on PEA&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;How colony morphology and hemolysis may differ from blood agar&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;Why Lancefield grouping should never be performed directly from PEA&lt;br /&gt; &lt;br /&gt;&lt;/p&gt; &lt;/li&gt; &lt;/ul&gt; &lt;p dir="ltr"&gt;PEA is a powerful recovery tool — but only when you understand its limitations.&lt;br /&gt; Short, focused, and straight from the bench, this is your Micro minutes.&lt;strong&gt;&lt;br /&gt;&lt;/strong&gt;&lt;/p&gt; &lt;p dir="ltr"&gt; &lt;/p&gt; &lt;p dir="ltr"&gt;&lt;strong&gt;Stay connected with Let's Talk Micro:&lt;/strong&gt;&lt;/p&gt; &lt;ul&gt; &lt;li dir="ltr" style="font-weight: bold;" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;&lt;strong&gt;Website: &lt;a href= "https://www.letstalkmicro.com/"&gt;letstalkmicro.com&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" style="font-weight: bold;" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;&lt;strong&gt;Questions or feedback? Email me at &lt;a href= "mailto:letstalkmicro@outlook.com"&gt;letstalkmicro@outlook.com&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" style="font-weight: bold;" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;&lt;strong&gt;Interested in being a guest on Let's Talk Micro? Fill out the form here: &lt;a href= "https://forms.gle/V2fT3asjfyusmqyi8"&gt;https://forms.gle/V2fT3asjfyusmqyi8&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt; &lt;/li&gt; &lt;/ul&gt; &lt;p&gt; &lt;/p&gt; &lt;p dir="ltr"&gt;&lt;strong&gt;Support the podcast:&lt;/strong&gt;&lt;/p&gt; &lt;ul&gt; &lt;li dir="ltr" style="font-weight: bold;" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;&lt;strong&gt;&lt;a href= "https://venmo.com/u/letstalkmicro"&gt;Venmo&lt;br /&gt; &lt;br /&gt;&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt; &lt;/li&gt; &lt;li dir="ltr" style="font-weight: bold;" aria-level="1"&gt; &lt;p dir="ltr" role="presentation"&gt;&lt;strong&gt;&lt;a href= "https://ko-fi.com/letstalkmicro"&gt;Buy me a Ko-fi&lt;/a&gt;&lt;/strong&gt;&lt;/p&gt; &lt;/li&gt; &lt;/ul&gt; &lt;p&gt; &lt;/p&gt;</description>

Let's Talk Micro

Luis Plaza

217: Micro Minutes: Don't Let PEA Fool You

DEC 19, 202512 MIN
Let's Talk Micro

217: Micro Minutes: Don't Let PEA Fool You

DEC 19, 202512 MIN

Description

PEA agar is often treated as "the gram-positive plate," but that shortcut can lead to real bench-level mistakes. In this MicroMinutes episode, we break down what phenylethyl alcohol agar actually does, why growth on PEA does not automatically mean an organism is gram-positive, and how selective media can change colony appearance and behavior. You'll hear about: What PEA inhibits — and what it doesn't Why Pseudomonas aeruginosa can grow quite well on PEA How colony morphology and hemolysis may differ from blood agar Why Lancefield grouping should never be performed directly from PEA PEA is a powerful recovery tool — but only when you understand its limitations. Short, focused, and straight from the bench, this is your Micro minutes. Stay connected with Let's Talk Micro: Website: letstalkmicro.com Questions or feedback? Email me at [email protected] Interested in being a guest on Let's Talk Micro? Fill out the form here: https://forms.gle/V2fT3asjfyusmqyi8 Support the podcast: Venmo Buy me a Ko-fi