{"id":796,"date":"2025-10-15T05:42:00","date_gmt":"2025-10-15T05:42:00","guid":{"rendered":"https:\/\/gau.edu.bd\/plp\/?p=796"},"modified":"2025-10-15T06:06:22","modified_gmt":"2025-10-15T06:06:22","slug":"eco-friendly-biosynthesis-of-silver-nanoparticles-from-banana-flower-extract-for-protective-role-against-the-rice-blast-pathogen-pyricularia-oryzae","status":"publish","type":"post","link":"https:\/\/gau.edu.bd\/plp\/2025\/10\/15\/eco-friendly-biosynthesis-of-silver-nanoparticles-from-banana-flower-extract-for-protective-role-against-the-rice-blast-pathogen-pyricularia-oryzae\/","title":{"rendered":"Eco-friendly biosynthesis of silver nanoparticles from banana flower extract for protective role against the rice blast pathogen Pyricularia oryzae"},"content":{"rendered":"<p><span class=\"nowrap\">Chaiti Saha<\/span>,\u00a0<span class=\"nowrap\">Shova Pandit<\/span>,\u00a0<span class=\"nowrap\">Md Motaher Hossain<\/span>,\u00a0<span class=\"nowrap\">Md Manjurul Haque<\/span>,\u00a0<span class=\"nowrap\">Rayhanur Jannat<\/span>,\u00a0<span class=\"nowrap\">Md Tanbir Rubayet<\/span>\u00a0and\u00a0<span class=\"nowrap\">Md Mahidul Islam Masum<sup>\u2217<\/sup><\/span><\/p>\n<h2 id=\"artAbst\" class=\"collapse-blocked\">Abstract<\/h2>\n<div class=\"article-text wd-jnl-art-abstract cf\">\n<p>Rice blast caused by\u00a0<i>Pyricularia oryzae<\/i>\u00a0(syn.\u00a0<i>Magnaporthe oryzae<\/i>) is one of the most devastating diseases in rice, resulting in substantial yield loss. Currently, the control of rice blast relies significantly on chemical fungicides, which raise numerous environmental concerns. However, silver nanoparticles (AgNPs) are emerging as innovative, non-resistant substitutes for conventional fungicides. This study aimed to synthesize AgNPs from banana flowers via a green approach and assess their antifungal activity against\u00a0<i>Pyricularia oryzae<\/i>\u00a0strain SP2\u00a0<i>in vitro<\/i>. The pathogen\u00a0<i>Pyricularia oryzae<\/i>\u00a0strain SP2 was identified by morphological features and study of the internal transcribed spacer (ITS) sequence. The AgNPs were characterized via UV\u2013Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive x-ray analysis (EDX). The optimal reaction conditions for the green synthesis of the AgNPs resulted in a rapid color change from light yellow to dark brown when the floral extract (15 ml) was added. A surface plasmon resonance peak was observed in the UV-visible spectrum at approximately 433 cm<sup>\u22121<\/sup>, which was correlated with the synthesis of the AgNPs. The biogenic AgNPs had a spherical form with an average particle size of 47.63 nm, according to TEM and SEM examination. The greatest mycelial growth inhibition of\u00a0<i>P. oryzae<\/i>\u00a0(87.25%) was observed when it was exposed to biofabricated AgNPs at 40 \u03bcg ml<sup>\u22121<\/sup>. The AgNPs successfully suppressed spore germination and germ tube development of\u00a0<i>P. oryzae<\/i>, with increased doses demonstrating enhanced antifungal efficacy. Additionally, the appressorium formation rates decreased from 78.34% in the control to 41.67%, 16.45%, and 4% at increasing concentrations (20, 30, 40 \u03bcg ml<sup>\u22121<\/sup>). Overall, this study demonstrated that bioinspired AgNPs have antifungal activity against the rice blast pathogen\u00a0<i>P. oryzae<\/i>\u00a0and can be used to control blast diseases in rice.<\/p>\n<ul>\n<li>Doi: <a href=\"https:\/\/doi.org\/10.1088\/2053-1591\/ae05f4\">10.1088\/2053-1591\/ae05f4<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Chaiti Saha,\u00a0Shova Pandit,\u00a0Md Motaher Hossain,\u00a0Md Manjurul Haque,\u00a0Rayhanur Jannat,\u00a0Md Tanbir Rubayet\u00a0and\u00a0Md Mahidul Islam Masum\u2217 Abstract Rice blast caused by\u00a0Pyricularia oryzae\u00a0(syn.\u00a0Magnaporthe oryzae) is one of the most devastating diseases in rice, resulting in substantial yield loss. Currently, the control of rice blast relies significantly on chemical fungicides, which raise numerous environmental concerns. However, silver nanoparticles (AgNPs) are [&hellip;]<\/p>\n","protected":false},"author":786024,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-796","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\/796","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\/786024"}],"replies":[{"embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/comments?post=796"}],"version-history":[{"count":3,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/796\/revisions"}],"predecessor-version":[{"id":805,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/posts\/796\/revisions\/805"}],"wp:attachment":[{"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/media?parent=796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/categories?post=796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gau.edu.bd\/plp\/wp-json\/wp\/v2\/tags?post=796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}