Lotus japonicus Nuclear Factor YA1, a nodule emergence stage-specific regulator of auxin signalling

被引：29

作者：

Shrestha, Arina ^{[1
,2
]}

Zhong, Sihui ^{[1
]}

Therrien, Jasmine ^{[1
,2
]}

Huebert, Terry ^{[1
]}

Sato, Shusei ^{[3
]}

Mun, Terry ^{[4
]}

Andersen, Stig U. ^{[4
]}

Stougaard, Jens ^{[4
]}

Lepage, Agnes ^{[5
]}

Niebel, Andreas ^{[5
]}

Ross, Loretta ^{[1
]}

Szczyglowski, Krzysztof ^{[1
,2
]}

机构：

[1] Agr & Agri Food Canada, London Res & Dev Ctr, London, ON N5V 4T3, Canada

[2] Univ Western Ontario, Dept Biol, London, ON N6A 5BF, Canada

[3] Tohoku Univ, Grad Sch Life Sci, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[4] Aarhus Univ, Dept Mol Biol & Genet, DK-8000 Aarhus, Denmark

[5] Univ Toulouse, Inst Natl Rech Agr Alimentat Environm INRAE, Lab Interact Plantes Microorganismes LIPM, CNRS, F-31326 Castanet Tolosan, France

来源：

NEW PHYTOLOGIST | 2021年 / 229卷 / 03期

基金：

加拿大自然科学与工程研究理事会; 新加坡国家研究基金会;

关键词：

auxin; legume; Lotus; Medicago; NF‐ YA1; root nodule; symbiosis; BINDING TRANSCRIPTION FACTORS; LATERAL ROOT DEVELOPMENT; LOTUS-JAPONICUS; RHIZOBIAL INFECTION; FAMILY GENES; KINASE GENE; PLANT; ARABIDOPSIS; ORGANOGENESIS; BIOSYNTHESIS;

D O I：

10.1111/nph.16950

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Organogenesis of legume root nodules begins with the nodulation factor-dependent stimulation of compatible root cells to initiate divisions, signifying an early nodule primordium formation event. This is followed by cellular differentiation, including cell expansion and vascular bundle formation, and we previously showed that Lotus japonicus NF-YA1 is essential for this process, presumably by regulating three members of the SHORT INTERNODES/STYLISH (STY) transcription factor gene family. In this study, we used combined genetics, genomics and cell biology approaches to characterize the role of STY genes during root nodule formation and to test a hypothesis that they mediate nodule development by stimulating auxin signalling. We show here that L. japonicus STYs are required for nodule emergence. This is attributed to the NF-YA1-dependent regulatory cascade, comprising STY genes and their downstream targets, YUCCA1 and YUCCA11, involved in a local auxin biosynthesis at the post-initial cell division stage. An analogous NF-YA1/STY regulatory module seems to operate in Medicago truncatula in association with the indeterminate nodule patterning. Our data define L. japonicus and M. truncatula NF-YA1 genes as important nodule emergence stage-specific regulators of auxin signalling while indicating that the inductive stage and subsequent formation of early nodule primordia are mediated through an independent mechanism(s).

引用

页码：1535 / 1552

页数：18