An abietane diterpenoid is a potent activator of systemic acquired resistance

Xuemin Wang

doi:10.1111/j.1365-313X.2012.04981.x

An abietane diterpenoid is a potent activator of systemic acquired resistance

Xuemin Wang

University of Missouri-St. Louis

Research output: Contribution to journal › Article › peer-review

Abstract

<div class="line" id="line-15"> Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non&hyphen;colonized, organs of a plant that has experienced a local foliar infection. DA was purified as a SAR&hyphen;activating factor from vascular sap of  Arabidopsis thaliana  leaves treated with a SAR&hyphen;inducing microbe. Locally applied DA is translocated through the plant and systemically induces the accumulation of salicylic acid (SA), an important activator of defense, thus leading to enhanced resistance against subsequent infections. The  NPR1  ( NON&hyphen;EXPRESSOR OF PR GENES1  ),  FMO1  ( FLAVIN&hyphen;DEPENDENT MONOOXYGENASE1  ) and  DIR1  ( DEFECTIVE IN INDUCED RESISTANCE1  ) genes, which are critical for biologically induced SAR, are also required for the DA&hyphen;induced SAR, which is further enhanced by azelaic acid, a defense priming molecule. In response to the biological induction of SAR, DA in vascular sap is redistributed into a SAR&hyphen;inducing ‘signaling DA’ pool that is associated with a trypsin&hyphen;sensitive high molecular weight fraction, a finding that suggests that DA&hyphen;orchestrated SAR involves a vascular sap protein(s). </div>

Original language	American English
Journal	The Plant Journal
Volume	71
DOIs	https://doi.org/10.1111/j.1365-313X.2012.04981.x
State	Published - 2012

Keywords

Arabidopsis thaliana
dehydroabietinal
immunity booster
long‐distance communication
plant stress response
systemic immunity

Disciplines

Botany

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10.1111/j.1365-313X.2012.04981.xLicense: Unspecified

Cite this

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title = "An abietane diterpenoid is a potent activator of systemic acquired resistance",

abstract = " Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non&hyphen;colonized, organs of a plant that has experienced a local foliar infection. DA was purified as a SAR&hyphen;activating factor from vascular sap of  Arabidopsis thaliana  leaves treated with a SAR&hyphen;inducing microbe. Locally applied DA is translocated through the plant and systemically induces the accumulation of salicylic acid (SA), an important activator of defense, thus leading to enhanced resistance against subsequent infections. The  NPR1  ( NON&hyphen;EXPRESSOR OF PR GENES1  ),  FMO1  ( FLAVIN&hyphen;DEPENDENT MONOOXYGENASE1  ) and  DIR1  ( DEFECTIVE IN INDUCED RESISTANCE1  ) genes, which are critical for biologically induced SAR, are also required for the DA&hyphen;induced SAR, which is further enhanced by azelaic acid, a defense priming molecule. In response to the biological induction of SAR, DA in vascular sap is redistributed into a SAR&hyphen;inducing ‘signaling DA’ pool that is associated with a trypsin&hyphen;sensitive high molecular weight fraction, a finding that suggests that DA&hyphen;orchestrated SAR involves a vascular sap protein(s). ",

keywords = "Arabidopsis thaliana, dehydroabietinal, immunity booster, long‐distance communication, plant stress response, systemic immunity",

author = "Xuemin Wang",

note = "Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non‐colonized, organs of a plant that has experienced a local foliar infection.",

year = "2012",

doi = "10.1111/j.1365-313X.2012.04981.x",

language = "American English",

volume = "71",

journal = "The Plant Journal",

}

TY - JOUR

T1 - An abietane diterpenoid is a potent activator of systemic acquired resistance

AU - Wang, Xuemin

N1 - Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non‐colonized, organs of a plant that has experienced a local foliar infection.

PY - 2012

Y1 - 2012

N2 - Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non&hyphen;colonized, organs of a plant that has experienced a local foliar infection. DA was purified as a SAR&hyphen;activating factor from vascular sap of  Arabidopsis thaliana  leaves treated with a SAR&hyphen;inducing microbe. Locally applied DA is translocated through the plant and systemically induces the accumulation of salicylic acid (SA), an important activator of defense, thus leading to enhanced resistance against subsequent infections. The  NPR1  ( NON&hyphen;EXPRESSOR OF PR GENES1  ),  FMO1  ( FLAVIN&hyphen;DEPENDENT MONOOXYGENASE1  ) and  DIR1  ( DEFECTIVE IN INDUCED RESISTANCE1  ) genes, which are critical for biologically induced SAR, are also required for the DA&hyphen;induced SAR, which is further enhanced by azelaic acid, a defense priming molecule. In response to the biological induction of SAR, DA in vascular sap is redistributed into a SAR&hyphen;inducing ‘signaling DA’ pool that is associated with a trypsin&hyphen;sensitive high molecular weight fraction, a finding that suggests that DA&hyphen;orchestrated SAR involves a vascular sap protein(s).

AB - Abietane diterpenoids are major constituents of conifer resins that have important industrial and medicinal applications. However, their function in plants is poorly understood. Here we show that dehydroabietinal (DA), an abietane diterpenoid, is an activator of systemic acquired resistance (SAR), which is an inducible defense mechanism that is activated in the distal, non&hyphen;colonized, organs of a plant that has experienced a local foliar infection. DA was purified as a SAR&hyphen;activating factor from vascular sap of  Arabidopsis thaliana  leaves treated with a SAR&hyphen;inducing microbe. Locally applied DA is translocated through the plant and systemically induces the accumulation of salicylic acid (SA), an important activator of defense, thus leading to enhanced resistance against subsequent infections. The  NPR1  ( NON&hyphen;EXPRESSOR OF PR GENES1  ),  FMO1  ( FLAVIN&hyphen;DEPENDENT MONOOXYGENASE1  ) and  DIR1  ( DEFECTIVE IN INDUCED RESISTANCE1  ) genes, which are critical for biologically induced SAR, are also required for the DA&hyphen;induced SAR, which is further enhanced by azelaic acid, a defense priming molecule. In response to the biological induction of SAR, DA in vascular sap is redistributed into a SAR&hyphen;inducing ‘signaling DA’ pool that is associated with a trypsin&hyphen;sensitive high molecular weight fraction, a finding that suggests that DA&hyphen;orchestrated SAR involves a vascular sap protein(s).

KW - Arabidopsis thaliana

KW - dehydroabietinal

KW - immunity booster

KW - long‐distance communication

KW - plant stress response

KW - systemic immunity

UR - https://doi.org/10.1111/j.1365-313X.2012.04981.x

U2 - 10.1111/j.1365-313X.2012.04981.x

DO - 10.1111/j.1365-313X.2012.04981.x

M3 - Article

VL - 71

JO - The Plant Journal

JF - The Plant Journal

ER -

An abietane diterpenoid is a potent activator of systemic acquired resistance

Abstract

Keywords

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