1.0Institute of Plant Science and Resourceshttps://www.rib.okayama-u.ac.jp/englishkatohttps://www.rib.okayama-u.ac.jp/english/author/kato/rich600338<blockquote class="wp-embedded-content" data-secret="X714WTmZKm"><a href="https://www.rib.okayama-u.ac.jp/english/research/prr/">Plant resilience research group</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.rib.okayama-u.ac.jp/english/research/prr/embed/#?secret=X714WTmZKm" width="600" height="338" title="“Plant resilience research group” — Institute of Plant Science and Resources" data-secret="X714WTmZKm" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.rib.okayama-u.ac.jp/english/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Link to group homepage Faculty staff   Prof. Dr. Takatoshi KIBA E-mail： kibaATokayama-u.ac.jp (please change AT to @ before sending) Summary of main research topics Nitrogen is one of the most important nutrients determining plant growth and productivity. Although modern agriculture has heavily relied on nitrogen fertilization, typically less than half of the applied nitrogen is taken up by crops, with the remainder lost to the environment and causing serious environmental issues. Therefore, there is an urgent need to develop plant science-based knowledge to enable the reduction of nitrogen fertilizer inputs. In natural environments, nitrogen availability is generally low and subject to substantial temporal and spatial fluctuations. Moreover, multiple environmental […]https://www.rib.okayama-u.ac.jp/wp-content/uploads/2025/04/5f19f8038b959234c30f03075d8068f4.jpeg