{"id":6390,"date":"2021-10-06T15:02:38","date_gmt":"2021-10-06T06:02:38","guid":{"rendered":"https:\/\/www.emukk.com\/WP\/?p=6390"},"modified":"2021-10-06T15:04:43","modified_gmt":"2021-10-06T06:04:43","slug":"effects-of-bacillus-amyloliquefaciens-qsb-6-strain-on-apple-tree-roots-and-disease","status":"publish","type":"post","link":"https:\/\/www.emukk.com\/WP\/en\/effects-of-bacillus-amyloliquefaciens-qsb-6-strain-on-apple-tree-roots-and-disease\/","title":{"rendered":"Effects of Bacillus amyloliquefaciens QSB-6 strain on apple tree roots and disease"},"content":{"rendered":"<p>A group from National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Shandong, China has reported on Bacillus amyloliquefaciens QSB-6 strain isolated from apple orchard soils and its effect on apple tree roots and disease.<br \/>\n<a href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmicb.2021.746799\/full\">https:\/\/www.frontiersin.org\/articles\/10.3389\/fmicb.2021.746799\/full<\/a><\/p>\n<p>Authors compared effects of 4 types of soils on apple tree roots.<\/p>\n<ul>\n<li>untreated soil from a 31-year-old orchard (CK1)<\/li>\n<li>the same soil fumigated with methyl bromide (CK2)<\/li>\n<li>the same soil treated with the manure carrier only (T1)<\/li>\n<li>the same soil <strong>treated with Bacillus amyloliquefaciens strain QSB-6 manure treatment<\/strong> (T2)<\/li>\n<\/ul>\n<p>Interestingly, the CK2, T2, and T1 treatments significantly promoted the growth of apple tree roots, and the relative treatment effects were ranked from high to low: CK2 > T2 > T1 > CK1.<\/p>\n<p>The number of rhizobacteria increased significantly after T2 treatment by 9.64 times higher in T2 than in CK1, and soil fungal numbers were reduced significantly by 85.58% (in CK2) and 81.74% (in T2) compared with CK1.<br \/>\nExtracellular metabolites from strain QSB-6 showed a strong inhibitory effect on Fusarium hyphal growth and spore germination as shown below.<\/p>\n<p><a href=\"https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition-300x75.png\" alt=\"\" width=\"300\" height=\"75\" class=\"alignnone size-medium wp-image-6371\" srcset=\"https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition-300x75.png 300w, https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition-600x150.png 600w, https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition-1024x256.png 1024w, https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition-768x192.png 768w, https:\/\/www.emukk.com\/WP\/wp-content\/uploads\/2021\/10\/bacillus_fusarium-inhibition.png 1249w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> (A) Fusarium proliferatum, (B) Fusarium solani, (C) Fusarium verticillioides, (D) Fusarium oxysporum<\/p>\n<p>In summary, B. amyloliquefaciens QSB-6 has a good inhibitory effect on Fusarium in the soil and can significantly promote apple tree root growth. It has great potential as a biological control agent against apple disease.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A group from National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandon<\/p><\/div>\n<div class=\"blog-btn\"><a href=\"https:\/\/www.emukk.com\/WP\/en\/effects-of-bacillus-amyloliquefaciens-qsb-6-strain-on-apple-tree-roots-and-disease\/\" class=\"home-blog-btn\">\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70,7],"tags":[],"class_list":["post-6390","post","type-post","status-publish","format-standard","hentry","category-nature-en","category-technology-en"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/posts\/6390","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/comments?post=6390"}],"version-history":[{"count":2,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/posts\/6390\/revisions"}],"predecessor-version":[{"id":6392,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/posts\/6390\/revisions\/6392"}],"wp:attachment":[{"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/media?parent=6390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/categories?post=6390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emukk.com\/WP\/wp-json\/wp\/v2\/tags?post=6390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}