{"id":13493,"date":"2026-10-07T15:26:33","date_gmt":"2026-10-07T19:26:33","guid":{"rendered":"https:\/\/cog.ca\/?post_type=content_library&#038;p=13493"},"modified":"2026-10-07T15:26:34","modified_gmt":"2026-10-07T19:26:34","slug":"higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant","status":"publish","type":"content_library","link":"https:\/\/cog.ca\/fr\/content_library\/higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant\/","title":{"rendered":"Higher plant diversity promotes higher diversity of fungal pathogens, while it decreases pathogen infection per plant"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u00ab\u00a0Fungal plant pathogens are common in natural communities where they affect plant physiology, plant survival, and biomass production. Conversely, pathogen transmission and infection may be regulated by plant community characteristics such as plant species diversity and functional composition that favor pathogen diversity through increases in host diversity while simultaneously reducing pathogen infection via increased variability in host density and spatial heterogeneity. Therefore, a comprehensive understanding of multi-host\u2013multi-pathogen interactions is of high significance in the context of biodiversity\u2013ecosystem functioning. We investigated the relationship between plant diversity and aboveground obligate parasitic fungal pathogen (\u201cpathogens\u201d hereafter) diversity and infection in grasslands of a long-term, large-scale, biodiversity experiment with varying plant species (1\u201360 species) and plant functional group diversity (1\u20134 groups). To estimate pathogen infection of the plant communities, we visually assessed pathogen-group presence (i.e., rusts, powdery mildews, downy mildews, smuts, and leaf-spot diseases) and overall infection levels (combining incidence and severity of each pathogen group) in 82 experimental plots on all aboveground organs of all plant species per plot during four surveys in 2006.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00ab\u00a0We investigated the relationship between plant diversity and aboveground obligate parasitic fungal pathogen (\u201cpathogens\u201d hereafter) diversity and infection in grasslands of a long-term, large-scale, biodiversity experiment with varying plant species (1\u201360 species) and plant functional group diversity (1\u20134 groups).\u00a0\u00bb<\/p>\n","protected":false},"featured_media":0,"menu_order":0,"template":"","library_category":[91,173,100],"library_language":[85],"library_tag":[86],"library_type":[90],"sample_type":[],"test_location":[],"test_type":[],"class_list":["post-13493","content_library","type-content_library","status-publish","hentry","library_category-biodiversity-community-dynamics-diversity","library_category-pest-management","library_category-regenerative-mindset","library_language-english","library_tag-resource-library","library_type-journal-article"],"better_featured_image":null,"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Higher plant diversity promotes higher diversity of fungal pathogens, while it decreases pathogen infection per plant - Cultivons Biologique Canada<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cog.ca\/content_library\/higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Higher plant diversity promotes higher diversity of fungal pathogens, while it decreases pathogen infection per plant - Cultivons Biologique Canada\" \/>\n<meta property=\"og:description\" content=\"&quot;We investigated the relationship between plant diversity and aboveground obligate parasitic fungal pathogen (\u201cpathogens\u201d hereafter) diversity and infection in grasslands of a long-term, large-scale, biodiversity experiment with varying plant species (1\u201360 species) and plant functional group diversity (1\u20134 groups).&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cog.ca\/content_library\/higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant\/\" \/>\n<meta property=\"og:site_name\" content=\"Cultivons Biologique Canada\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-07T19:26:34+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/cog.ca\/content_library\/higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant\/\",\"url\":\"https:\/\/cog.ca\/content_library\/higher-plant-diversity-promotes-higher-diversity-of-fungal-pathogens-while-it-decreases-pathogen-infection-per-plant\/\",\"name\":\"Higher plant diversity promotes higher diversity of fungal pathogens, while it decreases pathogen infection per plant - 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