Sugar and phytohormone response pathways: Navigating a signalling network

Research output: Contribution to journalArticle

215 Citations (Scopus)

Abstract

Many plant developmental, physiological and metabolic processes are regulated, at least in part, by nutrient availability. In particular, alterations in the availability of soluble sugars, such as glucose and sucrose, help regulate a diverse array of processes. Multiple lines of evidence indicate that many of these processes are also regulated in response to other signalling molecules, such as phytohormones. This review draws examples from a variety of plant systems, including bean, Arabidopsis, potato, and cereals. Five of the most interesting and best developed examples of processes regulated via 'interactions' or 'crosstalk' between sugars and phytohormones are described, including embryogenesis, seed germination, early seedling development, tuberization, and the regulation of α-amylase activity. The types of mechanisms by which different response pathways are known or postulated to interact are also described. These mechanisms include regulation of the metabolism and/or transport of a signalling molecule by a different response pathway. For example, sugars have been postulated to help regulate the synthesis, conjugation and/or transport of phytohormones, such as gibberellins and abscisic acid. Conversely, phytohormones, such as abscisic acid, gibberellins and cytokinins have been shown to help regulate sugar metabolism and/or transport. Similarly, sugars have been shown to regulate the expression of components of phytohormone-response pathways and phytohormones regulate the expression of some genes encoding possible components of sugar-response pathways. Examples of proteins and second messengers that appear to act in multiple response pathways are also described.

Original languageEnglish (US)
Pages (from-to)253-264
Number of pages12
JournalJournal of experimental botany
Volume55
Issue number395
DOIs
StatePublished - Jan 1 2004

Fingerprint

Plant Growth Regulators
plant hormones
sugars
Gibberellins
Abscisic Acid
gibberellins
abscisic acid
Plant Physiological Phenomena
Cytokinins
metabolism
second messengers
Second Messenger Systems
Amylases
Solanum tuberosum
Germination
Seedlings
Arabidopsis
amylases
nutrient availability
cytokinins

Keywords

  • Abscisic acid
  • Amylase
  • Embryogenesis
  • Germination
  • Gibberellin
  • Glucose
  • Review
  • Sucrose
  • Sugar
  • Tuberization

Cite this

Sugar and phytohormone response pathways : Navigating a signalling network. / Gibson, Sue.

In: Journal of experimental botany, Vol. 55, No. 395, 01.01.2004, p. 253-264.

Research output: Contribution to journalArticle

@article{80ec03707b9e44e9bdbedd93b57b0612,
title = "Sugar and phytohormone response pathways: Navigating a signalling network",
abstract = "Many plant developmental, physiological and metabolic processes are regulated, at least in part, by nutrient availability. In particular, alterations in the availability of soluble sugars, such as glucose and sucrose, help regulate a diverse array of processes. Multiple lines of evidence indicate that many of these processes are also regulated in response to other signalling molecules, such as phytohormones. This review draws examples from a variety of plant systems, including bean, Arabidopsis, potato, and cereals. Five of the most interesting and best developed examples of processes regulated via 'interactions' or 'crosstalk' between sugars and phytohormones are described, including embryogenesis, seed germination, early seedling development, tuberization, and the regulation of α-amylase activity. The types of mechanisms by which different response pathways are known or postulated to interact are also described. These mechanisms include regulation of the metabolism and/or transport of a signalling molecule by a different response pathway. For example, sugars have been postulated to help regulate the synthesis, conjugation and/or transport of phytohormones, such as gibberellins and abscisic acid. Conversely, phytohormones, such as abscisic acid, gibberellins and cytokinins have been shown to help regulate sugar metabolism and/or transport. Similarly, sugars have been shown to regulate the expression of components of phytohormone-response pathways and phytohormones regulate the expression of some genes encoding possible components of sugar-response pathways. Examples of proteins and second messengers that appear to act in multiple response pathways are also described.",
keywords = "Abscisic acid, Amylase, Embryogenesis, Germination, Gibberellin, Glucose, Review, Sucrose, Sugar, Tuberization",
author = "Sue Gibson",
year = "2004",
month = "1",
day = "1",
doi = "10.1093/jxb/erh048",
language = "English (US)",
volume = "55",
pages = "253--264",
journal = "Journal of Experimental Botany",
issn = "0022-0957",
publisher = "Oxford University Press",
number = "395",

}

TY - JOUR

T1 - Sugar and phytohormone response pathways

T2 - Navigating a signalling network

AU - Gibson, Sue

PY - 2004/1/1

Y1 - 2004/1/1

N2 - Many plant developmental, physiological and metabolic processes are regulated, at least in part, by nutrient availability. In particular, alterations in the availability of soluble sugars, such as glucose and sucrose, help regulate a diverse array of processes. Multiple lines of evidence indicate that many of these processes are also regulated in response to other signalling molecules, such as phytohormones. This review draws examples from a variety of plant systems, including bean, Arabidopsis, potato, and cereals. Five of the most interesting and best developed examples of processes regulated via 'interactions' or 'crosstalk' between sugars and phytohormones are described, including embryogenesis, seed germination, early seedling development, tuberization, and the regulation of α-amylase activity. The types of mechanisms by which different response pathways are known or postulated to interact are also described. These mechanisms include regulation of the metabolism and/or transport of a signalling molecule by a different response pathway. For example, sugars have been postulated to help regulate the synthesis, conjugation and/or transport of phytohormones, such as gibberellins and abscisic acid. Conversely, phytohormones, such as abscisic acid, gibberellins and cytokinins have been shown to help regulate sugar metabolism and/or transport. Similarly, sugars have been shown to regulate the expression of components of phytohormone-response pathways and phytohormones regulate the expression of some genes encoding possible components of sugar-response pathways. Examples of proteins and second messengers that appear to act in multiple response pathways are also described.

AB - Many plant developmental, physiological and metabolic processes are regulated, at least in part, by nutrient availability. In particular, alterations in the availability of soluble sugars, such as glucose and sucrose, help regulate a diverse array of processes. Multiple lines of evidence indicate that many of these processes are also regulated in response to other signalling molecules, such as phytohormones. This review draws examples from a variety of plant systems, including bean, Arabidopsis, potato, and cereals. Five of the most interesting and best developed examples of processes regulated via 'interactions' or 'crosstalk' between sugars and phytohormones are described, including embryogenesis, seed germination, early seedling development, tuberization, and the regulation of α-amylase activity. The types of mechanisms by which different response pathways are known or postulated to interact are also described. These mechanisms include regulation of the metabolism and/or transport of a signalling molecule by a different response pathway. For example, sugars have been postulated to help regulate the synthesis, conjugation and/or transport of phytohormones, such as gibberellins and abscisic acid. Conversely, phytohormones, such as abscisic acid, gibberellins and cytokinins have been shown to help regulate sugar metabolism and/or transport. Similarly, sugars have been shown to regulate the expression of components of phytohormone-response pathways and phytohormones regulate the expression of some genes encoding possible components of sugar-response pathways. Examples of proteins and second messengers that appear to act in multiple response pathways are also described.

KW - Abscisic acid

KW - Amylase

KW - Embryogenesis

KW - Germination

KW - Gibberellin

KW - Glucose

KW - Review

KW - Sucrose

KW - Sugar

KW - Tuberization

UR - http://www.scopus.com/inward/record.url?scp=1642564011&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642564011&partnerID=8YFLogxK

U2 - 10.1093/jxb/erh048

DO - 10.1093/jxb/erh048

M3 - Article

C2 - 14673024

AN - SCOPUS:1642564011

VL - 55

SP - 253

EP - 264

JO - Journal of Experimental Botany

JF - Journal of Experimental Botany

SN - 0022-0957

IS - 395

ER -