The formation of reactive oxygen species by fungal and bacterial phytotoxins

Ingrid Heiser; Wolfgang Oßwald; Erich F. Elstner

doi:10.1016/S0981-9428(98)80020-X

The formation of reactive oxygen species by fungal and bacterial phytotoxins

Ingrid Heiser, Wolfgang Oßwald, Erich F. Elstner

Life Sciences

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

53 Scopus citations

Abstract

Several microbial phytotoxins are known to induce the formation of reactive oxygen species (ROS). This review points out the different mechanisms by which oxygen activation takes place: photodynamic formation of singlet oxygen as well as reductive activation of oxygen via photosynthetic electron transport, diaphorases, cytochrome P₄₅₀ and dithiols. Particular emphasis is put on the naphthazarin toxins from Fusarium solani which were shown to reductively activate oxygen via several mechanisms. The significance of oxygen activation by phytotoxins for symptom development is discussed.

Original language	English
Pages (from-to)	703-713
Number of pages	11
Journal	Plant Physiology and Biochemistry
Volume	36
Issue number	10
DOIs	https://doi.org/10.1016/S0981-9428(98)80020-X
State	Published - Oct 1998

Keywords

Naphthazarin toxins
Photodynamic reactions
Phytotoxin
Plant-pathogen interactions
Singlet oxygen
Superoxide

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10.1016/S0981-9428(98)80020-X

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abstract = "Several microbial phytotoxins are known to induce the formation of reactive oxygen species (ROS). This review points out the different mechanisms by which oxygen activation takes place: photodynamic formation of singlet oxygen as well as reductive activation of oxygen via photosynthetic electron transport, diaphorases, cytochrome P450 and dithiols. Particular emphasis is put on the naphthazarin toxins from Fusarium solani which were shown to reductively activate oxygen via several mechanisms. The significance of oxygen activation by phytotoxins for symptom development is discussed.",

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AU - Oßwald, Wolfgang

AU - Elstner, Erich F.

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AB - Several microbial phytotoxins are known to induce the formation of reactive oxygen species (ROS). This review points out the different mechanisms by which oxygen activation takes place: photodynamic formation of singlet oxygen as well as reductive activation of oxygen via photosynthetic electron transport, diaphorases, cytochrome P450 and dithiols. Particular emphasis is put on the naphthazarin toxins from Fusarium solani which were shown to reductively activate oxygen via several mechanisms. The significance of oxygen activation by phytotoxins for symptom development is discussed.

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KW - Photodynamic reactions

KW - Phytotoxin

KW - Plant-pathogen interactions

KW - Singlet oxygen

KW - Superoxide

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ER -

The formation of reactive oxygen species by fungal and bacterial phytotoxins

Abstract

Keywords

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