Regulation of Shoot Meristem Shape by Photoperiodic Signaling and Phytohormones During Floral Induction of Arabidopsis

Overview

Journal Elife

Specialty Biology

Date 2020 Dec 14

PMID 33315012

Citations 19

Authors

Atsuko Kinoshita

Alice Vayssieres

Rene Richter

Qing Sang

Adrian Roggen

Annabel D van Driel

Richard S Smith

George Coupland

Affiliations

Soon will be listed here.

Abstract

Floral transition, the onset of plant reproduction, involves changes in shape and identity of the shoot apical meristem (SAM). The change in shape, termed doming, occurs early during floral transition when it is induced by environmental cues such as changes in day-length, but how it is regulated at the cellular level is unknown. We defined the morphological and cellular features of the SAM during floral transition of . Both cell number and size increased during doming, and these changes were partially controlled by the gene regulatory network (GRN) that triggers flowering. Furthermore, dynamic modulation of expression of gibberellin (GA) biosynthesis and catabolism enzymes at the SAM contributed to doming. Expression of these enzymes was regulated by two MADS-domain transcription factors implicated in flowering. We provide a temporal and spatial framework for integrating the flowering GRN with cellular changes at the SAM and highlight the role of local regulation of GA.

Citing Articles

A population genomics approach to unlock the genetic potential of lablab (Lablab purpureus (L.) Sweet), an underutilized tropical forage crop.

Teshome A, Habte E, Cheema J, Mekasha A, Lire H, Muktar M BMC Genomics. 2024; 25(1):1241.

PMID: 39719589 PMC: 11668113. DOI: 10.1186/s12864-024-11104-5.

SPL13 controls a root apical meristem phase change by triggering oriented cell divisions.

Yang B, Sun Y, Minne M, Ge Y, Yue Q, Goossens V Science. 2024; 386(6723):eado4298.

PMID: 39541454 PMC: 7616863. DOI: 10.1126/science.ado4298.

CLAVATA3 Signaling Buffers Arabidopsis Shoot Apical Meristem Activity in Response to Photoperiod.

Fletcher J Int J Mol Sci. 2024; 25(17).

PMID: 39273306 PMC: 11394970. DOI: 10.3390/ijms25179357.

Coordination of shoot apical meristem shape and identity by APETALA2 during floral transition in Arabidopsis.

Bertran Garcia de Olalla E, Cerise M, Rodriguez-Maroto G, Casanova-Ferrer P, Vayssieres A, Severing E Nat Commun. 2024; 15(1):6930.

PMID: 39138172 PMC: 11322546. DOI: 10.1038/s41467-024-51341-6.

An Overview on MADS Box Members in Plants: A Meta-Review.

Adhikari P, Kasahara R Int J Mol Sci. 2024; 25(15).

PMID: 39125803 PMC: 11311456. DOI: 10.3390/ijms25158233.

References

Bowman J, Eshed Y . Formation and maintenance of the shoot apical meristem. Trends Plant Sci. 2000; 5(3):110-5. DOI: 10.1016/s1360-1385(00)01569-7. View

Liu C, Xi W, Shen L, Tan C, Yu H . Regulation of floral patterning by flowering time genes. Dev Cell. 2009; 16(5):711-22. DOI: 10.1016/j.devcel.2009.03.011. View

Lee H, Suh S, Park E, Cho E, Ahn J, Kim S . The AGAMOUS-LIKE 20 MADS domain protein integrates floral inductive pathways in Arabidopsis. Genes Dev. 2000; 14(18):2366-76. PMC: 316936. DOI: 10.1101/gad.813600. View

Abe M, Kobayashi Y, Yamamoto S, Daimon Y, Yamaguchi A, Ikeda Y . FD, a bZIP protein mediating signals from the floral pathway integrator FT at the shoot apex. Science. 2005; 309(5737):1052-6. DOI: 10.1126/science.1115983. View

Wilson R, Heckman J, Somerville C . Gibberellin Is Required for Flowering in Arabidopsis thaliana under Short Days. Plant Physiol. 1992; 100(1):403-8. PMC: 1075565. DOI: 10.1104/pp.100.1.403. View

Peng J, Carol P, RICHARDS D, King K, Cowling R, Murphy G . The Arabidopsis GAI gene defines a signaling pathway that negatively regulates gibberellin responses. Genes Dev. 1998; 11(23):3194-205. PMC: 316750. DOI: 10.1101/gad.11.23.3194. View

Mateos J, Madrigal P, Tsuda K, Rawat V, Richter R, Romera-Branchat M . Combinatorial activities of SHORT VEGETATIVE PHASE and FLOWERING LOCUS C define distinct modes of flowering regulation in Arabidopsis. Genome Biol. 2015; 16:31. PMC: 4378019. DOI: 10.1186/s13059-015-0597-1. View

Porri A, Torti S, Romera-Branchat M, Coupland G . Spatially distinct regulatory roles for gibberellins in the promotion of flowering of Arabidopsis under long photoperiods. Development. 2012; 139(12):2198-209. DOI: 10.1242/dev.077164. View

Kardailsky I, Shukla V, Ahn J, Dagenais N, Christensen S, Nguyen J . Activation tagging of the floral inducer FT. Science. 1999; 286(5446):1962-5. DOI: 10.1126/science.286.5446.1962. View

10.

Schmid M, Uhlenhaut N, Godard F, Demar M, Bressan R, Weigel D . Dissection of floral induction pathways using global expression analysis. Development. 2003; 130(24):6001-12. DOI: 10.1242/dev.00842. View

11.

Willige B, Ghosh S, Nill C, Zourelidou M, Dohmann E, Maier A . The DELLA domain of GA INSENSITIVE mediates the interaction with the GA INSENSITIVE DWARF1A gibberellin receptor of Arabidopsis. Plant Cell. 2007; 19(4):1209-20. PMC: 1913748. DOI: 10.1105/tpc.107.051441. View

12.

Tamaki S, Matsuo S, Wong H, Yokoi S, Shimamoto K . Hd3a protein is a mobile flowering signal in rice. Science. 2007; 316(5827):1033-6. DOI: 10.1126/science.1141753. View

13.

Torti S, Fornara F, Vincent C, Andres F, Nordstrom K, Gobel U . Analysis of the Arabidopsis shoot meristem transcriptome during floral transition identifies distinct regulatory patterns and a leucine-rich repeat protein that promotes flowering. Plant Cell. 2012; 24(2):444-62. PMC: 3315226. DOI: 10.1105/tpc.111.092791. View

14.

Andres F, Coupland G . The genetic basis of flowering responses to seasonal cues. Nat Rev Genet. 2012; 13(9):627-39. DOI: 10.1038/nrg3291. View

15.

Gregis V, Andres F, Sessa A, Guerra R, Simonini S, Mateos J . Identification of pathways directly regulated by SHORT VEGETATIVE PHASE during vegetative and reproductive development in Arabidopsis. Genome Biol. 2013; 14(6):R56. PMC: 3706845. DOI: 10.1186/gb-2013-14-6-r56. View

16.

Ma Y, Miotk A, Sutikovic Z, Ermakova O, Wenzl C, Medzihradszky A . WUSCHEL acts as an auxin response rheostat to maintain apical stem cells in Arabidopsis. Nat Commun. 2019; 10(1):5093. PMC: 6841675. DOI: 10.1038/s41467-019-13074-9. View

17.

Clough S, Bent A . Floral dip: a simplified method for Agrobacterium-mediated transformation of Arabidopsis thaliana. Plant J. 1999; 16(6):735-43. DOI: 10.1046/j.1365-313x.1998.00343.x. View

18.

Taoka K, Ohki I, Tsuji H, Furuita K, Hayashi K, Yanase T . 14-3-3 proteins act as intracellular receptors for rice Hd3a florigen. Nature. 2011; 476(7360):332-5. DOI: 10.1038/nature10272. View

19.

Ariizumi T, Lawrence P, Steber C . The role of two f-box proteins, SLEEPY1 and SNEEZY, in Arabidopsis gibberellin signaling. Plant Physiol. 2010; 155(2):765-75. PMC: 3032465. DOI: 10.1104/pp.110.166272. View

20.

Magome H, Yamaguchi S, Hanada A, Kamiya Y, Oda K . The DDF1 transcriptional activator upregulates expression of a gibberellin-deactivating gene, GA2ox7, under high-salinity stress in Arabidopsis. Plant J. 2008; 56(4):613-26. DOI: 10.1111/j.1365-313X.2008.03627.x. View