Fusarium avenaceum as a novel pathogen of spotted knapweed and its phytotoxins, acetamido-butenolide and enniatin B

Joseph Hershenhorn; Sang Ho Park; Andrea Stierle; Gary A. Strobel

doi:10.1016/0168-9452(92)90161-E

Fusarium avenaceum as a novel pathogen of spotted knapweed and its phytotoxins, acetamido-butenolide and enniatin B

Joseph Hershenhorn
, Sang Ho Park
, Andrea Stierle
, Gary A. Strobel

Montana State University

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

41 Scopus citations

Abstract

Fusarium avenaceum is described as a novel fungal pathogen of spotted knapweed (Centurea maculosa L.), a noxious range, park and pasture land pest of the Pacific Northwest, USA. Pathogenicity of this fungus was established via Koch's postulates. Two phytotoxins were isolated and characterized from the culture filtrate of this fungus, i.e., acetamido-butenolide and enniatin B. These compounds are not host selective, but do act in a synergistic manner to cause necrotic lesions on detached knapweed leaves. Both phytotoxins, acetamido-butenolide and enniatin B are active at 3.5 × 10^-3M and are produced in culture in a ratio of 1:10.

Original language	English
Pages (from-to)	155-160
Number of pages	6
Journal	Plant Science
Volume	86
Issue number	2
DOIs	https://doi.org/10.1016/0168-9452(92)90161-E
State	Published - 1992

Funding

The authors acknowledge the help of Dr. Joe Sears, MSU Chemistry Department, in acquiring mass spectra data. Financial help for this project was provided by NSF, the Montana Weed Trust Fund, and the Montana Ag. Res. Exp. Station.

Keywords

biological control
pathogen
phytotoxins
plant disease
synergism

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10.1016/0168-9452(92)90161-E

Cite this

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title = "Fusarium avenaceum as a novel pathogen of spotted knapweed and its phytotoxins, acetamido-butenolide and enniatin B",

abstract = "Fusarium avenaceum is described as a novel fungal pathogen of spotted knapweed (Centurea maculosa L.), a noxious range, park and pasture land pest of the Pacific Northwest, USA. Pathogenicity of this fungus was established via Koch's postulates. Two phytotoxins were isolated and characterized from the culture filtrate of this fungus, i.e., acetamido-butenolide and enniatin B. These compounds are not host selective, but do act in a synergistic manner to cause necrotic lesions on detached knapweed leaves. Both phytotoxins, acetamido-butenolide and enniatin B are active at 3.5 × 10-3M and are produced in culture in a ratio of 1:10.",

keywords = "biological control, pathogen, phytotoxins, plant disease, synergism",

author = "Joseph Hershenhorn and Park, \{Sang Ho\} and Andrea Stierle and Strobel, \{Gary A.\}",

note = "Funding Information: The authors acknowledge the help of Dr. Joe Sears, MSU Chemistry Department, in acquiring mass spectra data. Financial help for this project was provided by NSF, the Montana Weed Trust Fund, and the Montana Ag. Res. Exp. Station.",

year = "1992",

doi = "10.1016/0168-9452(92)90161-E",

language = "English",

volume = "86",

pages = "155--160",

journal = "Plant Science",

issn = "0168-9452",

publisher = "Elsevier Ireland Ltd",

number = "2",

}

TY - JOUR

T1 - Fusarium avenaceum as a novel pathogen of spotted knapweed and its phytotoxins, acetamido-butenolide and enniatin B

AU - Hershenhorn, Joseph

AU - Park, Sang Ho

AU - Stierle, Andrea

AU - Strobel, Gary A.

N1 - Funding Information: The authors acknowledge the help of Dr. Joe Sears, MSU Chemistry Department, in acquiring mass spectra data. Financial help for this project was provided by NSF, the Montana Weed Trust Fund, and the Montana Ag. Res. Exp. Station.

PY - 1992

Y1 - 1992

N2 - Fusarium avenaceum is described as a novel fungal pathogen of spotted knapweed (Centurea maculosa L.), a noxious range, park and pasture land pest of the Pacific Northwest, USA. Pathogenicity of this fungus was established via Koch's postulates. Two phytotoxins were isolated and characterized from the culture filtrate of this fungus, i.e., acetamido-butenolide and enniatin B. These compounds are not host selective, but do act in a synergistic manner to cause necrotic lesions on detached knapweed leaves. Both phytotoxins, acetamido-butenolide and enniatin B are active at 3.5 × 10-3M and are produced in culture in a ratio of 1:10.

AB - Fusarium avenaceum is described as a novel fungal pathogen of spotted knapweed (Centurea maculosa L.), a noxious range, park and pasture land pest of the Pacific Northwest, USA. Pathogenicity of this fungus was established via Koch's postulates. Two phytotoxins were isolated and characterized from the culture filtrate of this fungus, i.e., acetamido-butenolide and enniatin B. These compounds are not host selective, but do act in a synergistic manner to cause necrotic lesions on detached knapweed leaves. Both phytotoxins, acetamido-butenolide and enniatin B are active at 3.5 × 10-3M and are produced in culture in a ratio of 1:10.

KW - biological control

KW - pathogen

KW - phytotoxins

KW - plant disease

KW - synergism

UR - https://www.scopus.com/pages/publications/38249015375

U2 - 10.1016/0168-9452(92)90161-E

DO - 10.1016/0168-9452(92)90161-E

M3 - Article

AN - SCOPUS:38249015375

SN - 0168-9452

VL - 86

SP - 155

EP - 160

JO - Plant Science

JF - Plant Science

IS - 2

ER -

Fusarium avenaceum as a novel pathogen of spotted knapweed and its phytotoxins, acetamido-butenolide and enniatin B

Abstract

Funding

Keywords

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