<html><body><div style="font-family: verdana,helvetica,sans-serif; font-size: 9pt; color: #000000"><div><br></div><div>REMINDER</div><div><br data-mce-bogus="1"></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>Van: </b>"Delphine Verspeel" <delphine.verspeel@psb.vib-ugent.be><br><b>Aan: </b>"meetings" <meetings@psb.vib-ugent.be><br><b>Verzonden: </b>Vrijdag 8 april 2022 16:30:24<br><b>Onderwerp: </b>You are invited to attend “Vein Patterning by Coordinated Polar Cell-Behavior” ON April 28, 2022<br></div><div><br><style><!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;
mso-font-charset:0;
mso-generic-font-family:roman;
mso-font-pitch:variable;
mso-font-signature:-536869121 1107305727 33554432 0 415 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:-469750017 -1073732485 9 0 511 0;}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-unhide:no;
mso-style-qformat:yes;
mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
p.MsoHeader, li.MsoHeader, div.MsoHeader
{mso-style-priority:99;
mso-style-link:"Header Char";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
tab-stops:center 8.0cm right 16.0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
p.MsoFooter, li.MsoFooter, div.MsoFooter
{mso-style-priority:99;
mso-style-link:"Footer Char";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
tab-stops:center 8.0cm right 16.0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
span.HeaderChar
{mso-style-name:"Header Char";
mso-style-priority:99;
mso-style-unhide:no;
mso-style-locked:yes;
mso-style-link:Header;
mso-ansi-font-size:12.0pt;
mso-bidi-font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";
mso-ansi-language:EN-US;}
span.FooterChar
{mso-style-name:"Footer Char";
mso-style-priority:99;
mso-style-unhide:no;
mso-style-locked:yes;
mso-style-link:Footer;
mso-ansi-font-size:12.0pt;
mso-bidi-font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";
mso-ansi-language:EN-US;}
.zimbra31
{mso-style-type:export-only;
mso-default-props:yes;
font-family:"Calibri",sans-serif;
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:Calibri;
mso-fareast-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;
mso-fareast-language:EN-US;}
.zimbra32
{mso-style-type:export-only;
line-height:115%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;
mso-header-margin:19.85pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.WordSection1
{page:WordSection1;}
--></style></div><div data-marker="__QUOTED_TEXT__"><div><div style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);"><style><!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;
mso-font-charset:0;
mso-generic-font-family:roman;
mso-font-pitch:variable;
mso-font-signature:3 0 0 0 1 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:-469750017 -1073732485 9 0 511 0;}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-unhide:no;
mso-style-qformat:yes;
mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
.zimbra29
{mso-style-type:export-only;
mso-default-props:yes;
font-family:"Calibri",sans-serif;
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:Calibri;
mso-fareast-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;
mso-fareast-language:EN-US;}
.zimbra30
{mso-style-type:export-only;
line-height:115%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;
mso-header-margin:35.4pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.WordSection1
{page:WordSection1;}
--></style><br><div><div><div style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);"><div style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);"><div style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);"><div style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);"><div id="zimbraEditorContainer" style="font-family: verdana, helvetica, sans-serif; font-size: 9pt; color: rgb(0, 0, 0);" class="32"><center>You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at <a href="https://maillist.psb.ugent.be/mailman/listinfo/seminars" rel="nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer" target="_blank">https://maillist.psb.ugent.be/mailman/listinfo/seminars</a>.<br><br> <img data-mce-src="cid:d2469bfe296ccedfabb1afb9cf140b5868607e7c@zimbra" pnsrc="cid:d2469bfe296ccedfabb1afb9cf140b5868607e7c@zimbra" src="cid:d2469bfe296ccedfabb1afb9cf140b5868607e7c@zimbra"><h1 style="color: rgb(0, 0, 0); font-family: "segoe ui", "lucida sans", sans-serif; font-style: normal; letter-spacing: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br></h1><h1 style="color: rgb(0, 0, 0); font-family: "segoe ui", "lucida sans", sans-serif; font-style: normal; letter-spacing: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; background-color: rgb(255, 253, 251);"><span style="font-family: verdana, helvetica, sans-serif; font-size: 18pt;"><i><span lang="EN-US">''<span style="font-family: verdana, helvetica, sans-serif; font-size: 18pt;"><i style="mso-bidi-font-style: normal;"><span lang="EN-US">Vein Patterning by Coordinated Polar Cell-Behavior</span></i></span>''</span></i></span></h1><h1 style="color: rgb(0, 0, 0); font-family: "segoe ui", "lucida sans", sans-serif; font-style: normal; letter-spacing: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; background-color: rgb(255, 253, 251);"><span style="background-color: rgb(255, 255, 255); font-family: verdana, helvetica, sans-serif; font-size: 9pt;"> </span><br></h1><br><h2>Prof Enrico Scarpella</h2><h2 class="MsoNormal" style="margin: 0px;"><br></h2><h2 class="MsoNormal" style="margin: 0px;"><span lang="EN-US" style="font-size: 9pt; font-family: calibri, sans-serif;"></span>Department of Biological Sciences</h2><h2 class="MsoNormal" style="margin: 0px;">University of Alberta<br>CANADA</h2><br><br><h2>Thursday, April 28, 2022<br>11:00</h2><p class="MsoNormal" align="center" style="text-align: center; margin: 0px;"><span lang="EN-US" style="font-size: 16pt; font-family: calibri, sans-serif;"><br></span></p><p class="MsoNormal" align="center" style="text-align: center; margin: 0px;"><span lang="EN-US" style="font-size: 16pt; font-family: calibri, sans-serif;"><br></span></p><p class="MsoNormal" align="center" style="text-align: center; margin: 0px;"><span><span lang="EN-US" style="font-size: 16pt; font-family: calibri, sans-serif;"><strong> </strong></span></span><br></p><p class="MsoNormal" style="text-align: justify; margin: 0px;"><br></p> <p class="MsoNormal" style="text-align: justify; margin: 0px;"><span lang="EN-US" style="font-size: 11pt; font-family: calibri, sans-serif; color: black;">To form tissue networks, animal cells migrate along specific directions and interact through proteins protruding from specific segments of their plasma membranes. Plant cells can do neither, yet plants form vein networks. How plants do so is unclear, but the prevailing hypothesis proposes that GNOM — a regulator of membrane trafficking — positions PIN-FORMED auxin transporters to specific segments of the plasma membrane; the resulting cell-to-cell, polar transport of auxin would induce vein formation. Contrary to predictions of the hypothesis, we find that vein formation occurs in the absence of PIN-FORMED auxin transporters; that the residual auxin-transport-independent vein-patterning activity relies on auxin signaling; and that a <i>GNOM</i>-dependent signal acts upstream of both auxin transport and auxin signaling to induce vein formation. Nevertheless, plants inhibited in both auxin transport and auxin signaling still form veins. Patterning of vascular cells into veins is instead prevented in the absence of <i>GNOM</i> function, suggesting the existence of at least one more <i>GNOM</i>-dependent vein-patterning pathway. Our fundings suggest that such a pathway depends on the movement of an auxin-dependent signal through the plasmodesmata (PDs) intercellular channels. PD permeability is high where veins are forming, lowers between veins and nonvascular tissues, but remains high between vein cells. Impaired ability to regulate PD aperture leads to defects in auxin transport and signaling, ultimately leading to vein patterning defects that are enhanced by inhibition of auxin transport or signaling. <i>GNOM</i> controls PD aperture regulation, and simultaneous inhibition of auxin signaling, auxin transport, and regulated PD aperture phenocopies loss of <i>GNOM</i> function. Therefore, veins are patterned by the coordinated action of three <i>GNOM</i>-dependent pathways: auxin signaling, polar auxin transport, and movement of an auxin-dependent signal through PDs. Such control is an unprecedented mechanism of tissue network formation in multicellular organisms.</span><span lang="EN" style="font-size: 10pt; font-family: calibri, sans-serif;"></span></p> <br><p class="MsoNormal" style="text-align: justify; margin: 0px;"><br></p><br><h3><br></h3><h3>Jozef Schell seminar room<br>Technologiepark 71 - 9052 </h3><br><br><br><br>Invited by Prof Dirk Inzé and Prof Bert De Rybel<br><br>If you do not wish to receive this information anymore, please unsubscribe from future mailings at <a href="https://maillist.psb.ugent.be/mailman/listinfo/seminars" rel="nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer" target="_blank">https://maillist.psb.ugent.be/mailman/listinfo/seminars</a><br><p style="color: rgb(0, 32, 96); font-family: sans-serif; font-size: 13.3333px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; background-color: rgb(255, 253, 251); margin: 0px;"><span style="color: rgb(65, 183, 185);"><b></b></span><br></p><p style="color: rgb(0, 32, 96); font-family: sans-serif; font-size: 13.3333px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; background-color: rgb(255, 253, 251); margin: 0px;"><span style="color: rgb(65, 183, 185);"><b></b></span><br></p><p style="color: rgb(0, 32, 96); font-family: sans-serif; font-size: 13.3333px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; background-color: rgb(255, 253, 251); margin: 0px;"><span style="color: rgb(65, 183, 185);"><b>Genome editing, cutting-edge technology for a sustainable agriculture</b></span></p><br><img alt="banner mail" width="498" height="81" data-mce-src="https://psbzim02.psb.ugent.be/home/signature@psb.ugent.be/Briefcase/PUBLIC/footer.png" src="https://psbzim02.psb.ugent.be/home/signature@psb.ugent.be/Briefcase/PUBLIC/footer.png" saveddisplaymode="" style=""><br>VIB-UGent Center for Plant Systems Biology</center><center>Ghent University<br>Technologiepark-Zwijnaarde 71<br>9052 Ghent-Belgium<br>Phone: +32(0)9 331 38 00<br><a href="http://www.psb.vib-ugent.be" rel="nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer" target="_blank">https://www.psb.ugent.be/</a></center></div></div></div></div></div></div><br></div><style><!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;
mso-font-charset:0;
mso-generic-font-family:roman;
mso-font-pitch:variable;
mso-font-signature:3 0 0 0 1 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:-469750017 -1073732485 9 0 511 0;}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-unhide:no;
mso-style-qformat:yes;
mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
p.MsoHeader, li.MsoHeader, div.MsoHeader
{mso-style-priority:99;
mso-style-link:"Header Char";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
tab-stops:center 8.0cm right 16.0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
p.MsoFooter, li.MsoFooter, div.MsoFooter
{mso-style-priority:99;
mso-style-link:"Footer Char";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
tab-stops:center 8.0cm right 16.0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
span.HeaderChar
{mso-style-name:"Header Char";
mso-style-priority:99;
mso-style-unhide:no;
mso-style-locked:yes;
mso-style-link:Header;
mso-ansi-font-size:12.0pt;
mso-bidi-font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";
mso-ansi-language:EN-US;}
span.FooterChar
{mso-style-name:"Footer Char";
mso-style-priority:99;
mso-style-unhide:no;
mso-style-locked:yes;
mso-style-link:Footer;
mso-ansi-font-size:12.0pt;
mso-bidi-font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-ascii-font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";
mso-bidi-font-family:"Times New Roman";
mso-ansi-language:EN-US;}
.zimbra27
{mso-style-type:export-only;
mso-default-props:yes;
font-family:"Calibri",sans-serif;
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:Calibri;
mso-fareast-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;
mso-fareast-language:EN-US;}
.zimbra28
{mso-style-type:export-only;
line-height:115%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;
mso-header-margin:19.85pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.WordSection1
{page:WordSection1;}
--></style><style><!--
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;
mso-font-charset:0;
mso-generic-font-family:roman;
mso-font-pitch:variable;
mso-font-signature:3 0 0 0 1 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:-469750017 -1073732485 9 0 511 0;}
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-unhide:no;
mso-style-qformat:yes;
mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman",serif;
mso-fareast-font-family:"Times New Roman";
mso-ansi-language:EN-US;
mso-fareast-language:EN-US;}
.zimbra25
{mso-style-type:export-only;
mso-default-props:yes;
font-family:"Calibri",sans-serif;
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:Calibri;
mso-fareast-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;
mso-fareast-language:EN-US;}
.zimbra26
{mso-style-type:export-only;
line-height:115%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;
mso-header-margin:35.4pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.WordSection1
{page:WordSection1;}
--></style></div></div><br></div></div></body></html>