Loss of function of an Arabidopsis homologue of JMJD6 suppresses the dwarf phenotype of acl5, a mutant defective in thermospermine biosynthesis

Loss of function of an Arabidopsis homologue of JMJD6 suppresses the dwarf phenotype of acl5, a mutant defective in thermospermine biosynthesis
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JMJD6 拟南芥同源物的功能丧失会抑制 acl5 的矮化表型,acl5 是一种热精胺生物合成缺陷的突变体

DOI:
10.1002/1873-3468.14470
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发表时间:
2022
期刊:
影响因子:
3.5
通讯作者:
Takahashi Taku
Takahashi Taku
中科院分区:
生物学3区
文献类型:
--
作者:
Matsuo Hirotoshi;Fukushima Hiroko;Kurokawa Shinpei;Kawano Eri;Okamoto Takashi;Motose Hiroyasu;Takahashi Taku

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InArabidopsis thaliana, theACL5gene encodes thermospermine synthase and its mutant,acl5, exhibits a dwarf phenotype with excessive xylem formation. Studies of suppressor mutants ofacl5reveal the involvement of thermospermine in enhancing mRNA translation of theSAC51gene family. We show here that a mutant,sac59, which partially suppresses theacl5phenotype, has a point mutation inJMJ22encoding a D6‐class Jumonji C protein (JMJD6). A T‐DNA insertion allele,jmj22‐2, also partially suppressed theacl5phenotype while mutants of its closest two homologsJMJ21andJMJ20had no such effects, suggesting a unique role for JMJ22 in plant development. We found that mRNAs of theSAC51family are more stabilized inacl5 jmj22‐2than inacl5.
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