期刊论文

中文

植物学报

1674-3466

2022

57

3

288-298

10.11983/CBB21194

No.31760301:国家自然科学基金 No.GJJ190872:江西省教育厅科技项目

本校为第一机构

程序性细胞死亡(PCD)对于植物生长发育和防御反应均极为重要。拟南芥(Arabidopsis thaliana)酪氨酸降解途径延胡索酰乙酰乙酸水解酶(FAH)缺失突变体sscd1 (short-day sensitive cell death 1)在短日照下(8小时光照/16小时黑暗)发生PCD。前期研究发现, sscd1突变体的PCD与茉莉素(JAs)信号转导有关,而与水杨酸(SA)信号转导无关。PAD4 (Phytoalexin deficient 4)参与SA和JAs信号转导之间的相互拮抗。该研究发现sscd1突变体PCD伴随着PAD4表达上调;而PAD4突变导致sscd1突变体PCD加速,同时上调JAs信号转导途径下游响应基因vegetative storage protein 2、thionin2.1和defensin1.2的表达; sscd1/pad4/c...

Programmed cell death(PCD)is extremely important for plant growth and defense.Fumarylacetoacetate hydrolase(FAH)deficient mutant short-day sensitive cell death 1(sscd1)displayed PCD under short day condition(8 h light/16 h darkness).Our previous study found PCD in sscd1 was related to jasmonates(JAs)signal transduction but not to salicylic acid(SA).Phytoalexin deficient 4(PAD4)is involved in mutual antagonism between SA and JAs signaling.In this study,PCD was accompanied by up-regulation of PAD4;while mutation of PAD4 accelerated the sscd1 PCD ...