Septoria cirsii, a potential biocontrol agent of Canada thistle and its phytotoxin-ß-nitropropionic acid

Joseph Hershenhorn; Maurizio Vurro; Maria Chiara Zonno; Andrea Stierle; Gary Strobel

doi:10.1016/0168-9452(93)90023-S

Septoria cirsii, a potential biocontrol agent of Canada thistle and its phytotoxin-ß-nitropropionic acid

Joseph Hershenhorn, Maurizio Vurro, Maria Chiara Zonno, Andrea Stierle, Gary Strobel

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

31 Scopus citations

Abstract

Septoria cirsii causes leaf spot of Canada thistle (Cirsium arvense L.) and no other plat tested was susceptible to this pathogen. Because this pathogen possesses host specificity, and because it is so devastating to Canada thistle plants in the field, it is proposed for consideration as a biological control agenet. In culture, S. cirsii produced copious amounts of a known phytotoxin which was identified as ß-nitropropionic acid. The toxin is inhibitory to seed germination, root elongation and causes the typical symptoms of chlorosis and necrosis on the leaves of Canada thistle which is one of the most toxin-sensitive plants of all of those tested.

Original language	English
Pages (from-to)	227-234
Number of pages	8
Journal	Plant Science
Volume	94
Issue number	1-2
DOIs	https://doi.org/10.1016/0168-9452(93)90023-S
State	Published - 1993

Keywords

Biological control
Phytotoxin
Plant pathogen
Weeds

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10.1016/0168-9452(93)90023-S

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title = "Septoria cirsii, a potential biocontrol agent of Canada thistle and its phytotoxin-{\ss}-nitropropionic acid",

abstract = "Septoria cirsii causes leaf spot of Canada thistle (Cirsium arvense L.) and no other plat tested was susceptible to this pathogen. Because this pathogen possesses host specificity, and because it is so devastating to Canada thistle plants in the field, it is proposed for consideration as a biological control agenet. In culture, S. cirsii produced copious amounts of a known phytotoxin which was identified as {\ss}-nitropropionic acid. The toxin is inhibitory to seed germination, root elongation and causes the typical symptoms of chlorosis and necrosis on the leaves of Canada thistle which is one of the most toxin-sensitive plants of all of those tested.",

keywords = "Biological control, Phytotoxin, Plant pathogen, Weeds",

author = "Joseph Hershenhorn and Maurizio Vurro and Zonno, {Maria Chiara} and Andrea Stierle and Gary Strobel",

note = "Funding Information: Trust Fund and the Montana Agricultural Experiment Station for financial support. Suzan Strobel kindly provided the drawings of healthy and diseased Canada thistle plants.",

year = "1993",

doi = "10.1016/0168-9452(93)90023-S",

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T1 - Septoria cirsii, a potential biocontrol agent of Canada thistle and its phytotoxin-ß-nitropropionic acid

AU - Hershenhorn, Joseph

AU - Vurro, Maurizio

AU - Zonno, Maria Chiara

AU - Stierle, Andrea

AU - Strobel, Gary

N1 - Funding Information: Trust Fund and the Montana Agricultural Experiment Station for financial support. Suzan Strobel kindly provided the drawings of healthy and diseased Canada thistle plants.

PY - 1993

Y1 - 1993

N2 - Septoria cirsii causes leaf spot of Canada thistle (Cirsium arvense L.) and no other plat tested was susceptible to this pathogen. Because this pathogen possesses host specificity, and because it is so devastating to Canada thistle plants in the field, it is proposed for consideration as a biological control agenet. In culture, S. cirsii produced copious amounts of a known phytotoxin which was identified as ß-nitropropionic acid. The toxin is inhibitory to seed germination, root elongation and causes the typical symptoms of chlorosis and necrosis on the leaves of Canada thistle which is one of the most toxin-sensitive plants of all of those tested.

AB - Septoria cirsii causes leaf spot of Canada thistle (Cirsium arvense L.) and no other plat tested was susceptible to this pathogen. Because this pathogen possesses host specificity, and because it is so devastating to Canada thistle plants in the field, it is proposed for consideration as a biological control agenet. In culture, S. cirsii produced copious amounts of a known phytotoxin which was identified as ß-nitropropionic acid. The toxin is inhibitory to seed germination, root elongation and causes the typical symptoms of chlorosis and necrosis on the leaves of Canada thistle which is one of the most toxin-sensitive plants of all of those tested.

KW - Biological control

KW - Phytotoxin

KW - Plant pathogen

KW - Weeds

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ER -

Septoria cirsii, a potential biocontrol agent of Canada thistle and its phytotoxin-ß-nitropropionic acid

Abstract

Keywords

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