Brassinosteroid signals cooperate with katanin‐mediated microtubule severing to control stamen filament elongation
Brassinosteroid signals cooperate with katanin‐mediated microtubule severing to control stamen filament elongation
复制标题
油菜素类固醇信号与剑素介导的微管切断配合控制雄蕊丝伸长
DOI：
10.15252/embj.2022111883
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发表时间：
2022-12
期刊：
影响因子：
--
通讯作者：
Zhaosheng Kong
中科院分区：
文献类型：
--
作者：
Jie Wang;Guangda Wang;Weiwei Liu;Huanhuan Yang;Chaofeng Wang;Weiyue Chen;Xiaxia Zhang;Juan Tian;Yanjun Yu;Jia Li;Yongbiao Xue;Zhaosheng Kong
雄蕊花丝的适当伸长对植物的授粉和繁殖是必不可少的。植物激素广泛参与雄蕊发育的各个阶段，然而，植物激素信号与微管动力学耦合来控制花丝伸长的细胞机制仍不清楚。在这里，我们筛选了一系列的拟南芥突变体显示不同的微管缺陷，并显示，只有那些无法切断微管，KT 1和KTN 80.1234，显示差异花器官伸长与较少延长雄蕊丝。在缺乏五个BZR 1家族转录因子（BFTFs）的qui-2中，由于短雄蕊丝和KTN 1和KTN 80表达的严重减少，我们研究了微管切割和油菜素类固醇（BR）信号传导之间的串扰。BFTF转录激活katanin编码基因，并且微管切断频率在qui-2中严重降低。总之，我们的研究结果揭示了BRs如何调节细胞骨架动力学以协调生殖器官的正常发育。
Proper stamen filament elongation is essential for pollination and plant reproduction. Plant hormones are extensively involved in every stage of stamen development; however, the cellular mechanisms by which phytohormone signals couple with microtubule dynamics to control filament elongation remain unclear. Here, we screened a series of Arabidopsis thaliana mutants showing different microtubule defects and revealed that only those unable to sever microtubules, lue1 and ktn80.1234, displayed differential floral organ elongation with less elongated stamen filaments. Prompted by short stamen filaments and severe decrease in KTN1 and KTN80s expression in qui‐2 lacking five BZR1‐family transcription factors (BFTFs), we investigated the crosstalk between microtubule severing and brassinosteroid (BR) signaling. The BFTFs transcriptionally activate katanin‐encoding genes, and the microtubule‐severing frequency was severely reduced in qui‐2. Taken together, our findings reveal how BRs can regulate cytoskeletal dynamics to coordinate the proper development of reproductive organs.
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影响因子：
9.2
作者：
Lin, Deshu;Cao, Lingyan;Fu, Ying
通讯作者：
Fu, Ying
影响因子：
11.6
作者：
Burk, DH;Liu, B;Ye, ZH
通讯作者：
Ye, ZH
DOI：
10.1083/jcb.200405094
发表时间：
2005-01-03
期刊：
The Journal of cell biology
影响因子：
--
作者：
Mimori-Kiyosue Y;Grigoriev I;Lansbergen G;Sasaki H;Matsui C;Severin F;Galjart N;Grosveld F;Vorobjev I;Tsukita S;Akhmanova A
通讯作者：
Akhmanova A
DOI：
10.1073/pnas.1912240116
发表时间：
2019-12
期刊：
Proceedings of the National Academy of Sciences
影响因子：
--
作者：
Huiying Miao;Rongfang Guo;Junlin Chen;Qiao-mei Wang;Y. Lee;Bo Liu
通讯作者：
Huiying Miao;Rongfang Guo;Junlin Chen;Qiao-mei Wang;Y. Lee;Bo Liu
影响因子：
9.2
作者：
A. Peaucelle;R. Wightman;H. Höfte
通讯作者：
A. Peaucelle;R. Wightman;H. Höfte