{"id":597,"date":"2022-07-10T18:15:44","date_gmt":"2022-07-10T18:15:44","guid":{"rendered":"https:\/\/bsmrau.edu.bd\/plp\/?p=597"},"modified":"2022-07-10T18:16:06","modified_gmt":"2022-07-10T18:16:06","slug":"597","status":"publish","type":"post","link":"https:\/\/gau.edu.bd\/plp\/2022\/07\/10\/597\/","title":{"rendered":"Cosmos white rot: First characterization, physiology, host range, disease resistance, and chemical control"},"content":{"rendered":"<h3 class=\"article-section__header main abstractlang_en main\">Abstract<\/h3>\n<div class=\"article-section__content en main\">\n<p>A new disease of\u00a0<i>Cosmos sulphureus<\/i>\u00a0Cav. causing external and internal stem discoloration, premature death, and wilting was observed in 27.8% of plants with an average disease severity rating of 4.4 in Gazipur, Bangladesh. Morphological, pathological, and molecular analyses identified the isolated fungus as\u00a0<i>Sclerotinia sclerotiorum<\/i>\u00a0(Lib) de Bary, the causative agent of white rot disease. The optimum growth and sclerotium formation of\u00a0<i>S. sclerotiorum<\/i>\u00a0occurred at 20\u00b0C and pH 5.0, while glucose, peptone, yeast extract, casein, and ascorbic acid were the appropriate nutrient sources. Furthermore, mycelial growth and sclerotial development were favored in media containing potassium, magnesium, calcium, and sodium. As many as 20 plant species of 10 families;\u00a0<i>Calendula officinalisi, Chrysanthemum indicum, Catharanthus roseus, Solanum tuberosum, S. lycopersicum, S. melongena, Capsicum annum, Lablab purpureus, Phaseolus vulgari, Lens culinaris, Vigna radiata, Vigna mungo, Daucus carota, Raphanus sativus, Brassica juncea, Punica granatum, Spinacia oleracea, Ipomoea batatas, Ipomoea aquatica<\/i>, and\u00a0<i>Elaeocarpus serratus<\/i>\u00a0were identified as the new hosts of the pathogen in Bangladesh. None of the\u00a0<i>C. sulphureus<\/i>\u00a0and\u00a0<i>Cosmos bipinnatus<\/i>\u00a0germplasms screened were genetically resistant to the pathogen. Among the tested fungicides, Autostin 50 WDG (carbendazim) and Rovral (Dicarboxamide) were most inhibitory to the fungus, while Autostin 50 WDG provided an efficient control of the pathogen in vivo up to 15\u2009days after spray. The acquired results on characterization, physiology, host range, resistance, and fungicidal control of the pathogen could be valuable for effectively managing cosmos white rot in the field.<\/p>\n<p><a href=\"https:\/\/doi.org\/10.1002\/jobm.202200098\">https:\/\/doi.org\/10.1002\/jobm.202200098<\/a><\/p>\n<\/div>\n<div id=\"abs0010\">\n<p id=\"sp0045\">\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Abstract A new disease of\u00a0Cosmos sulphureus\u00a0Cav. causing external and internal stem discoloration, premature death, and wilting was observed in 27.8% of plants with an average disease severity rating of 4.4 in Gazipur, Bangladesh. Morphological, pathological, and molecular analyses identified the isolated fungus as\u00a0Sclerotinia sclerotiorum\u00a0(Lib) de Bary, the causative agent of white rot disease. The optimum [&hellip;]<\/p>\n","protected":false},"author":251,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-597","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/users\/251"}],"replies":[{"embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/comments?post=597"}],"version-history":[{"count":3,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/597\/revisions"}],"predecessor-version":[{"id":600,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/597\/revisions\/600"}],"wp:attachment":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/media?parent=597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/categories?post=597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/tags?post=597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}