{"id":542,"date":"2021-10-16T02:06:34","date_gmt":"2021-10-16T02:06:34","guid":{"rendered":"https:\/\/bsmrau.edu.bd\/plp\/?p=542"},"modified":"2021-10-16T02:08:39","modified_gmt":"2021-10-16T02:08:39","slug":"characterization-of-pestalotiopsis-sp-causing-gray-leaf-spot-in-coconut-cocos-nucifera-l-in-bangladesh","status":"publish","type":"post","link":"https:\/\/gau.edu.bd\/plp\/2021\/10\/16\/characterization-of-pestalotiopsis-sp-causing-gray-leaf-spot-in-coconut-cocos-nucifera-l-in-bangladesh\/","title":{"rendered":"Characterization of Pestalotiopsis sp. causing gray leaf spot in coconut (Cocos nucifera L.) in Bangladesh"},"content":{"rendered":"<p><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Md. Abdullahil Baki Bhuiyan<i class=\"icon-mail_outline\" aria-hidden=\"true\"><\/i><span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Nasrin Sultana<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Nur U. Mahmud<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Md. Abdul Kader<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Oliul Hassan<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Taehyun Chang<span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Tofazzal Islam<i class=\"icon-mail_outline\" aria-hidden=\"true\"><\/i><span class=\"comma-separator\">, <\/span><\/span><span class=\"accordion-tabbed__tab-mobile accordion__closed\">Abdul M. Akanda<span class=\"comma-separator\">,<\/span><\/span><\/p>\n<h3 class=\"article-section__header main abstractlang_en main\">Abstract<\/h3>\n<div class=\"article-section__content en main\">\n<p>Coconut (<i>Cocos nucifera<\/i>\u00a0L.) is one of the most important fruit trees in Bangladesh. This tree is susceptible to various pathogens. Among them, a fungus was consistently isolated from gray leaf spot symptom in coconut. This study aimed to isolate, characterize, and find the management strategies of the causal fungus of gray leaf spot disease in coconut. Both morphological and molecular characters identified the pathogen as\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. for the first time in Bangladesh. Artificial inoculation of this fungus showed symptoms similar to those previously observed in the field. Cross-inoculation test suggests that\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. has a wide host range. The infection process of\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. started at 2\u2009h after inoculation (hai) with the formation of germ tube followed by the formation of infection hyphae, which penetrated directly into the host at 6\u2009hai. Gray leaf spot symptom was developed at 120\u2009hai. Numerous conidia developed from the acervuli at 168\u2009hai. These conidia acted as the source of inocula for secondary infection. The optimum temperature for the growth of\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. was 25\u00b0C, however, the growth of\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. ceased at 15\u00b0C and 35\u00b0C. This pathogen was completely inhibited by Autostin 50 WDG (carbendazim) at 100\u2009ppm.\u00a0<i>Trichoderma viride<\/i>\u00a0(Pb-7) was found as the potential biocontrol agent against\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. These findings could contribute to describing the disease cycle and epidemiology of\u00a0<i>Pestalotiopsis<\/i>\u00a0sp. that would ultimately require to undertake effective control measures against this pathogen.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Md. Abdullahil Baki Bhuiyan, Nasrin Sultana, Nur U. Mahmud, Md. Abdul Kader, Oliul Hassan, Taehyun Chang, Tofazzal Islam, Abdul M. Akanda, Abstract Coconut (Cocos nucifera\u00a0L.) is one of the most important fruit trees in Bangladesh. This tree is susceptible to various pathogens. Among them, a fungus was consistently isolated from gray leaf spot symptom in [&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-542","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\/542","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=542"}],"version-history":[{"count":4,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/542\/revisions"}],"predecessor-version":[{"id":544,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/542\/revisions\/544"}],"wp:attachment":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/media?parent=542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/categories?post=542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/tags?post=542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}