单词	avirulent
释义	avirulent /eɪˈvɪrjʊl(ə)nt / /aˈvɪrjʊl(ə)nt/ adjective (Of a microorganism) not virulent.Concerning biotic stress, plants exposed to virulent and avirulent pathogens respond with a range of defence- and damage-limiting mechanisms.... The main common defence reaction is the hypersensitive response, characterized by the induction of rapid cell death at the site of the attempted attack by either an avirulent strain of a pathogen or a non-pathogen. In Arabidopsis plants infiltrated with avirulent bacteria, specific calcium ‘waves’ were found to occur concurrent with the oxidative burst, leading to the HR.
随便看	ante-post anterior anteriority anteriorly antero- anterograde anterogradely anterolateral anteroom anteroposterior anteverted ant farm ant guest ant heap anthelion anthelmintic anthem anthemic anthemion Anthemius anther antheridial antheridium antherozoid anthesis

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。