J 2023

Abscisic acid biosynthesis is necessary for full auxin effects on hypocotyl elongation

EMENECKER, Ryan J, Joseph CAMMARATA, Irene YUAN, Caroline HOWARD, Shekoufeh EBRAHIMI NAGHANI et. al.

Basic information

Original name

Abscisic acid biosynthesis is necessary for full auxin effects on hypocotyl elongation

Authors

EMENECKER, Ryan J, Joseph CAMMARATA, Irene YUAN, Caroline HOWARD, Shekoufeh EBRAHIMI NAGHANI (364 Islamic Republic of Iran, belonging to the institution), Helene ROBERT BOISIVON (250 France, belonging to the institution), Eiji NAMBARA and Lucia C STRADER (guarantor)

Edition

Development, Company of Biologists Ltd, 2023, 0950-1991

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.600 in 2022

RIV identification code

RIV/00216224:14740/23:00131904

Organization unit

Central European Institute of Technology

UT WoS

001149725900005

Keywords in English

Auxin; abscisic acid; phytohormone; plant development; phytohormone interactions

Tags

Tags

International impact, Reviewed
Změněno: 18/3/2024 09:40, Mgr. Eva Dubská

Abstract

V originále

In concert with other phytohormones, auxin regulates plant growth and development. However, how auxin and other phytohormones coordinately regulate distinct processes is not fully understood. In this work, we uncover an auxin - abscisic acid (ABA) interaction module that is specific to coordinating activities of these hormones in the hypocotyl. From our forward genetics screen, we determine that ABA biosynthesis is required for the full effects of auxin on hypocotyl elongation. Our data also suggest that ABA biosynthesis is not required for the inhibitory effects of auxin treatment on root elongation. Our transcriptome analysis identified distinct auxin-responsive genes in root and shoot tissues, consistent with differential regulation of the growth in these tissues. Further, our data suggests that many gene targets repressed upon auxin treatment require an intact ABA pathway for full repression. Our results support a model in which auxin stimulates ABA biosynthesis to fully regulate hypocotyl elongation.

Links

EF16_026/0008446, research and development project
Name: Integrace signálu a epigenetické reprogramování pro produktivitu rostlin