{"id":8329,"date":"2019-08-30T16:53:40","date_gmt":"2019-08-30T20:53:40","guid":{"rendered":"http:\/\/132.236.156.160\/cuccap\/?p=8329"},"modified":"2022-03-31T16:50:02","modified_gmt":"2022-03-31T20:50:02","slug":"winter-squash-fruit-exocarp-structure-associated-with-age-related-resistance-to-phytophthora-capsici","status":"publish","type":"post","link":"http:\/\/132.236.156.160\/cuccap\/2019\/08\/30\/winter-squash-fruit-exocarp-structure-associated-with-age-related-resistance-to-phytophthora-capsici\/","title":{"rendered":"Hausbeck lab publishes article on Age-Related Resistance to Phytophthora capsici in Squash"},"content":{"rendered":"<div class=\"citation\">\n<blockquote>\n<p class=\"citation__title\"><i style=\"font-size: 16px\">Phytophthora capsici<\/i><span style=\"font-size: 16px\"> is a destructive pathogen of cucurbits causing root, crown, and fruit rot. Winter squash (<\/span><i style=\"font-size: 16px\">Cucurbita<\/i><span style=\"font-size: 16px\"> sp.) production is limited by this pathogen in Michigan and other U.S. growing regions. Age-related resistance (ARR) to <\/span><i style=\"font-size: 16px\">P. capsici<\/i><span style=\"font-size: 16px\"> occurs in <\/span><i style=\"font-size: 16px\">Cucurbita moschata<\/i><span style=\"font-size: 16px\"> fruit but is negated by wounding. The objective of this research was to determine if structural barriers to infection exist in the intact exocarp of maturing fruit exhibiting ARR. Five <\/span><i style=\"font-size: 16px\">C. moschata<\/i><span style=\"font-size: 16px\"> cultivars were evaluated for resistance to <\/span><i style=\"font-size: 16px\">P. capsici<\/i><span style=\"font-size: 16px\"> 10, 14, 16, 18, and 21 days post pollination (dpp). Scanning electron microscopy (SEM) imaging of \u2018Chieftain\u2019 butternut fruit exocarp at susceptible 7 dpp and resistant 14 dpp and 21 dpp revealed significant increases in the cuticle and epidermal thicknesses as fruit age. <\/span><i style=\"font-size: 16px\">P. capsici<\/i><span style=\"font-size: 16px\"> hyphae penetrated susceptible fruit 7 dpp directly from the surface or through wounds before 6-hour post inoculation (hpi) and completely degraded the fruit cell wall within 48 hpi. Resistant fruit, 14 dpp, and 21 dpp remained unaffected. The high correlation between the formation of a thickened cuticle and epidermis in maturing winter squash fruit and resistance to <\/span><i style=\"font-size: 16px\">P. capsici<\/i><span style=\"font-size: 16px\"> indicates the presence of a structural barrier to <\/span><i style=\"font-size: 16px\">P. capsici<\/i><span style=\"font-size: 16px\"> as the fruit matures.<\/span><\/p>\n<\/blockquote>\n<\/div>\n<div>\n<hr \/>\n<p>Read the article:<\/p>\n<ul>\n<li class=\"citation__title\">Changes in Winter Squash Fruit Exocarp Structure Associated with Age-Related Resistance to <i>Phytophthora capsici<br \/>\n<\/i>by Safa A. Alzohairy,\u00a0Ray Hammerschmidt,<span class=\"spacer\">\u00a0and\u00a0<\/span>Mary K. Hausbeck<br \/>\n<span class=\"epub-section__item\"><span class=\"epub-section__state\">Published Online:<\/span><span class=\"epub-section__date\">27 Aug 2019<br \/>\n<\/span><\/span>DOI: <a href=\"https:\/\/doi.org\/10.1094\/PHYTO-04-19-0128-R\" target=\"_blank\" rel=\"noopener noreferrer\">10.1094\/PHYTO-04-19-0128-R<\/a><\/li>\n<\/ul>\n<div>This article was published by Phytopathology with links available at <strong><a href=\"https:\/\/apsjournals.apsnet.org\/doi\/abs\/10.1094\/PHYTO-04-19-0128-R\" target=\"_blank\" rel=\"noopener noreferrer\">APS Publications<\/a><\/strong>, <strong><a href=\"https:\/\/europepmc.org\/abstract\/med\/31454304\" target=\"_blank\" rel=\"noopener noreferrer\">Europe PMC<\/a><\/strong>, and <strong><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/31454304\" target=\"_blank\" rel=\"noopener noreferrer\">NCBI<\/a><\/strong>.<\/div>\n<\/div>\n<div><\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Changes in Winter Squash Fruit Exocarp Structure Associated with Age-Related Resistance to Phytophthora capsici<br \/>\nby Safa A. Alzohairy,\u00a0Ray Hammerschmidt,\u00a0and\u00a0Mary K. Hausbeck<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"quote","meta":{"footnotes":""},"categories":[266],"tags":[472,116],"_links":{"self":[{"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/posts\/8329"}],"collection":[{"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/comments?post=8329"}],"version-history":[{"count":11,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/posts\/8329\/revisions"}],"predecessor-version":[{"id":11381,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/posts\/8329\/revisions\/11381"}],"wp:attachment":[{"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/media?parent=8329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/categories?post=8329"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/132.236.156.160\/cuccap\/wp-json\/wp\/v2\/tags?post=8329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}