The establishment of the species-specific floral organ body plan involves many coordinated spatiotemporal processes, which include the perception of positional information that spec-ifies floral meristem and floral organ founder cells, coordinated organ outgrowth coupled with the generation and maintenance of inter-organ and inter-whorl boundaries, and the termination of meristem activity. Auxin is integrated within the gene regulatory networks that control these processes and plays instructive roles at the level of tissue-specific biosynthesis and polar transport to generate local maxima, perception, and signaling. Key features of auxin function in several floral contexts include cell nonautonomy, interaction with cytokinin gradients, and the central role of MONOPTEROS and ETTIN to regulate canonical and noncanonical auxin response pathways, respectively. Arabidopsis flowers are not represen-tative of the enormous angiosperm floral diversity; therefore, comparative studies are required to understand how auxin underlies these developmental differences. It will be of great interest to compare the conservation of auxin pathways among flowering plants and to discuss the evolutionary role of auxin in floral development.

Auxin and flower development: A blossoming field / M. Cucinotta, A. Cavalleri, J.W. Chandler, L. Colombo. - In: COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY. - ISSN 1943-0264. - 13:2(2021), pp. 1-19. [10.1101/cshperspect.a039974]

Auxin and flower development: A blossoming field

M. Cucinotta
Primo
;
A. Cavalleri
Secondo
;
L. Colombo
Ultimo
2021

Abstract

The establishment of the species-specific floral organ body plan involves many coordinated spatiotemporal processes, which include the perception of positional information that spec-ifies floral meristem and floral organ founder cells, coordinated organ outgrowth coupled with the generation and maintenance of inter-organ and inter-whorl boundaries, and the termination of meristem activity. Auxin is integrated within the gene regulatory networks that control these processes and plays instructive roles at the level of tissue-specific biosynthesis and polar transport to generate local maxima, perception, and signaling. Key features of auxin function in several floral contexts include cell nonautonomy, interaction with cytokinin gradients, and the central role of MONOPTEROS and ETTIN to regulate canonical and noncanonical auxin response pathways, respectively. Arabidopsis flowers are not represen-tative of the enormous angiosperm floral diversity; therefore, comparative studies are required to understand how auxin underlies these developmental differences. It will be of great interest to compare the conservation of auxin pathways among flowering plants and to discuss the evolutionary role of auxin in floral development.
Settore BIO/01 - Botanica Generale
Settore BIO/11 - Biologia Molecolare
2021
dic-2020
Article (author)
File in questo prodotto:
File Dimensione Formato  
Cold Spring Harb Perspect Biol-2020-Cucinotta-cshperspect.a039974.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 1.47 MB
Formato Adobe PDF
1.47 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/878517
Citazioni
  • ???jsp.display-item.citation.pmc??? 15
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 37
social impact