D53 represses rice blast resistance by directly targeting phenylalanine ammonia lyases

Phytohormones play important roles in orchestrating plantimmune responses to pathogen attacks.Strigolactones(SLs),a group of carotenoid-derived phytohormones,modulate diverse biological processes in plants,including shoot branching,plant height,root architecture,leaf senescence,seed germination of parasitic plants,and symbiosis of arbuscular mycorrhizal fungi(Burger and Chory,2020).Recently,increasing evidence has indicated potential roles for SLs in regulating responses against biotic stresses,including defense responses against certain pathogenic fungi and bacteria in roots and leaves(Yi et al.,2023).

利用低温水浴鉴定水稻苗期耐寒性

高效准确鉴定苗期耐寒性是水稻(Oryza sativa)耐寒研究的前提。基于流动水浴温度均一这一特性,建立了一种恒温水浴鉴定水稻幼苗耐寒性方法。该方法中环境温度设定为20°C,水浴温度设定为4°C。根据对2个水稻亚种不同材料的处理结果,总结出几种常见品种的低温处理时间与存活率参考值,并对操作过程中的一些注意事项进行了说明。