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<p class="MsoNormal"><img width="338" height="89" style="width:3.5208in;height:.927in" id="_x0000_i1025" src="cid:image001.png@01D487D7.59860220" alt="Inline image 1"><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Hello Everyone,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Please join us for a talk<b> Today. Nov. 29 </b>by Marjorie Schulz, 12-1pm in Room SE2-302.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><b><span style="font-size:12.0pt;color:black">Talk Title: </span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Looking deep to understand SOM-mineral relationships: Rhizospheres and Biofilms<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><img width="160" height="240" style="width:1.6666in;height:2.5in" id="_x0000_i1030" src="cid:image002.png@01D487D7.59860220" alt="image.png"><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Abstract: </span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal">Soil organic matter (SOM) in deep (>30 cm) soil is microbially processed. Integration of microbial carbon into a long-term carbon pool is not well understood but known to be related to associations with short range ordered (SRO) minerals
and/or soil aggregates. However, there remains a significant knowledge gap; we do not yet understand the processes occurring at the microbe-mineral interface. Soil microbial processes have been studied mostly through bulk measurements such as soil respiration
and enzymatic assays. Where the microbes inhabit and interact with soil minerals is not well established. Scanning electron microscopy (SEM) images demonstrate that SOM mineral interfaces are commonly microbial biofilms and their remnants illustrating the
importance of biofilm production in generating SOM. These images also show that fungi and biofilms weather primary mineral grains, that soil organo-cutans are biofilms, and that biologic precipitation of SRO minerals occurs in biofilms, likely co-precipitating
with organic compounds. This work shows how SEM can be used without extensive sample preparation to image SOM.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">Bio:</span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal">Jorie has a BA in geology from Knox College and an MS in geology from University of Missouri. She has worked at the USGS since 1987, first in the branch of Marine Geology with a project studying Fe-Mn crusts. She transferred to National
Research Program of the Water Division in 1990 to work with Art White on mineral dissolution rates. This project used soil chronosequences to studying long term dissolution rates of primary minerals. The work in soil chronosequences has continued to the present
giving Jorie an appreciation of the effect of time. She is currently a lead scientist on a project titled, Biogeochemistry of soils: carbon/water/rock interaction in the critical zone.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">When: Nov. 29, Thursday, 12pm – 1pm<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Where: SE2-302<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Coffee will be provided, please bring your own mugs.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">We look forward to seeing you,<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Nate & Jing<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Organizers for Fall 2018: Nate Bogie and Jing Yan<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.5pt;font-family:"Arial",sans-serif">Faculty coordinator: Asmeret Asefaw Berhe<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">Jing Yan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">ES-LES-QSB Postdoctoral Fellow, Soil & Environmental Physics Lab<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">Life and Environmental Sciences<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">School of Natural Sciences<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">University of California, Merced<o:p></o:p></span></p>
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