{"id":3478,"date":"2020-05-14T09:07:05","date_gmt":"2020-05-14T09:07:05","guid":{"rendered":"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators\/"},"modified":"2025-01-15T06:30:10","modified_gmt":"2025-01-15T06:30:10","slug":"how-a-molecular-alarm-system-in-plants-protects-them-from-predators","status":"publish","type":"post","link":"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators","title":{"rendered":"How a molecular &#8220;alarm&#8221; system in plants protects them from predators"},"content":{"rendered":"<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">In nature, every species must be equipped with a strategy to be able to survive in response to danger. Plants, too, have innate systems that are triggered in response to a particular threat, such as insects feeding on them. For example, some plants sense \u201cherbivore-derived danger signals\u201d (HDS), which are specific chemicals in oral secretions of insects. This activates a cascade of events in the plant\u2019s defense machinery, which leads to the plant developing \u201cresistance\u201d to (or \u201cimmunity\u201d against) the predator. But despite decades of research, exactly how plants recognize these signals has remained a bit of a mystery. <\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">In a new study published in\u00a0<a href=\"https:\/\/doi.org\/10.1038\/s42003-020-0959-4\" style=\"color:blue; text-decoration:underline\"><i>Communications Biology<\/i><\/a>, a research team from Tokyo University of Science, Ehime University, Okayama University, The University of Tokyo, and Iwate Biotechnology Research Center, led by Prof Gen-ichiro Arimura, attempts to shed light on exactly how plant HDS systems work. They chose to study membrane proteins called \u201creceptor-like kinases\u201d (RLKs), which are found in soybean leaves. They based their study on previous evidence from plants like Arabidopsis, tobacco, and cowpea, in which RLKs play a major role in HDS systems. Prof Arimura says,\u00a0\u201cScientists have been trying to understand the molecular mechanism of plant resistance for years, but the \u2018sensors\u2019 involved in plant recognition of insect pests are still not known. Thus, we wanted to get a detailed understanding of these mechanisms.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">To begin with, the scientists focused on soybean RLK genes that were structurally and functionally similar to a RLK gene, which is known to trigger a danger response by recognizing \u201coligosaccharides\u201d (small carbohydrate molecules) during pathogen attack. They speculated that owing to these similarities, soybean genes might also show a mechanism similar to that seen in pathogen resistance. They found 15 such genes through genetic analysis. Next, the scientists generated 15 types of Arabidopsis plants, each plant uniquely expressing only one of the 15 individual soy genes. When they tested these plants using oral secretions from the pest, they uncovered genes for two novel RLKs that showed a defense response specific to the oral secretions, called GmHAK1 and GmHAK2. These findings were unprecedented: the role of these RLKs in soybean HDS systems had never been revealed before. <\/span><span style=\"font-family:&quot;Calibri&quot;,sans-serif\"><span style=\"color:black\">Moreover, when the scientists dug deeper into the mechanism of these regulatory factors in Arabidopsis, they found two proteins, a HAK homolog and PBL27 (which play a role in intracellular signaling), to be involved in this pathway.<\/span><\/span><span style=\"font-family:&quot;Calibri&quot;,sans-serif\"> Accordingly, this confirmed what the scientists had initially expected\u2014soybean and Arabidopsis possess similar mechanisms for \u201cdanger response.\u201d<\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">In agriculture, it is crucial to develop strategies for pest control in crop plants to avoid incurring losses. This study takes a massive step in this direction by uncovering an important cellular mechanism that triggers defense response in plants. Manipulating this innate cellular system may even help scientists to fuel the development of new agricultural products, potentially making life easier for farmers. Prof Arimura concludes,\u00a0\u201cIt has been challenging to find new pest control methods that are effective and do not harm the ecosystem in any way. Our study offers a potential solution to this problem by uncovering the details of how certain plants develop resistance.\u201d<\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><b><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Reference<\/span><\/b><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><b>Title of original paper: <\/b>Soy and Arabidopsis receptor-like kinases respond to polysaccharide signals from Spodoptera species and mediate herbivore resistance<\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><strong>Journal<\/strong>: <i>Communications Biology<\/i><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><strong>DOI<\/strong>: <span class=\"MsoHyperlink\" style=\"color:blue\"><span style=\"text-decoration:underline\"><a href=\"https:\/\/doi.org\/10.1038\/s42003-020-0959-4\" style=\"color:blue; text-decoration:underline\">10.1038\/s42003-020-0959-4<\/a><\/span><\/span><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><b>About The Tokyo University of Science<\/b><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\"><a href=\"https:\/\/www.tus.ac.jp\/en\/mediarelations\/\">Tokyo University of Science<\/a> (TUS) is a well-known and respected university, and the largest science-specialized private research university in Japan, with four campuses in central Tokyo and its suburbs and in Hokkaido. Established in 1881, the university has continually contributed to Japan&#8217;s development in science through inculcating the love for science in researchers, technicians, and educators. <\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\">\u00a0<\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">With a mission of \u201cCreating science and technology for the harmonious development of nature, human beings, and society&#8221;, TUS has undertaken a wide range of research from basic to applied science. TUS has embraced a multidisciplinary approach to research and undertaken intensive study in some of today&#8217;s most vital fields. TUS is a meritocracy where the best in science is recognized and nurtured. It is the only private university in Japan that has produced a Nobel Prize winner and the only private university in Asia to produce Nobel Prize winners within the natural sciences field. <\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><b>About Professor Gen-ichiro Arimura from Tokyo University of Science (TUS)<\/b><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\">Dr Gen-ichiro Arimura is a Professor in the Faculty of Industrial Science and Technology, Department of Biological Science and Technology at TUS, Japan. He completed his graduation at the Hiroshima University\u00a0Graduate School, after which he worked in the field of plant biology for several years before moving to TUS in 2013. A senior and well-respected researcher, he has more than 110 publications to his credit. His key research interests include plant biotechnology, ecology, and biochemistry. <\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><b><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Funding<\/span><\/b><span style=\"font-family:&quot;Calibri&quot;,sans-serif\"> <b>information<\/b><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\">This work was financially supported by the MEXT Grants-in-Aid for Scientific Research on Innovative Areas (18H04786 and 20H04786) and JSPS KAKENHI (20K15878, 20K06058, and 20H02951). <\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><b><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Media contact <\/span><\/b><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Tsutomu Shimizu <\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Email: <a href=\"mailto:mediaoffice@admin.tus.ac.jp\">mediaoffice@admin.tus.ac.jp<\/a><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In nature, every species must be equipped with a strategy to be able to survive in response to danger. Plants, too, have innate systems that are triggered in response to a particular threat, such as insects feeding on them. For example, some plants sense \u201cherbivore-derived danger signals\u201d (HDS), which are specific chemicals in oral secretions [&hellip;]<\/p>\n","protected":false},"author":1152,"featured_media":33313,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2435],"tags":[2482],"new_categories":[],"new_tags":[],"series":[],"class_list":["post-3478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trending-research","tag-science-update"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How a molecular \u201calarm\u201d system in plants protects them from predators | Editage Insights<\/title>\n<meta name=\"description\" content=\"Molecular \u201calarm\u201d system in plants protects them from predators as discovered by researchers at Tokyo University of Science\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How a molecular \u201calarm\u201d system in plants protects them from predators | Editage Insights\" \/>\n<meta property=\"og:description\" content=\"Molecular \u201calarm\u201d system in plants protects them from predators as discovered by researchers at Tokyo University of Science\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators\" \/>\n<meta property=\"og:site_name\" content=\"Editage Insights\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Editage\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-14T09:07:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-15T06:30:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.editage.com\/insights\/wp-content\/uploads\/2020\/05\/TUSCE_52_6_small_Thumbnail.JPG\" \/>\n\t<meta property=\"og:image:width\" content=\"656\" \/>\n\t<meta property=\"og:image:height\" content=\"432\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Impact Science\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Editage\" \/>\n<meta name=\"twitter:site\" content=\"@Editage\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Impact Science\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.editage.com\/insights\/how-a-molecular-alarm-system-in-plants-protects-them-from-predators\"},\"author\":{\"name\":\"Impact Science\",\"@id\":\"https:\/\/www.editage.com\/insights\/#\/schema\/person\/cbcaf87b3854025dbc992cc0df30714d\"},\"headline\":\"How a molecular &#8220;alarm&#8221; 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