Killing two birds with one stone: transcriptional regulators coordinate development and stress responses in plants.

Plant Signaling & Behavior
Hongchang Cui

Abstract

Plants, being immobile, must adjust development in response to various stresses, external and internal. Although much has been learned about the mechanisms that regulate development and sugar signaling and response, how the two processes are coordinated is poorly understood. GRAS-family transcriptional regulators SHORT-ROOT (SHR) and SCARECROW (SCR) are crucial to radial patterning and stem-cell renewal in the Arabidopsis root. We found that they directly control genes involved not only in development but also in stress responses and that SCR is pivotal in modulating sugar homeostasis and response. Our data suggest that SHR and SCR promote root growth by suppressing the deleterious effects of stress and that ABI4 has a dual role in sugar response and root growth. Other transcriptional regulators have also been reported to play dual roles in plant growth and stress responses. I therefore propose that regulation of both development and stress responses by single transcriptional regulators is a general and efficient mechanism of adaptive response in plants.

References

Apr 29, 1999·Proceedings of the National Academy of Sciences of the United States of America·R P BhaleraoC Koncz
Mar 31, 2007·Science·Shai KoussevitzkyJoanne Chory
Feb 19, 2008·Plant Molecular Biology·Bas J W DekkersSjef C M Smeekens
Oct 22, 2011·Developmental Cell·Anjali S Iyer-PascuzziPhilip N Benfey
Jan 17, 2012·Current Biology : CB·Karolina M Pajerowska-MukhtarXinnian Dong
Jan 1, 2008·The Arabidopsis Book·Matthew RamonJen Sheen
Feb 9, 2012·Plant Physiology·Hongchang CuiDanyu Kong

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.