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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
The phytotoxins of Mycosphaerella fijiensis, the causative agent of Black Sigatoka disease of bananas and plantains
Year:
1991
Source of publication :
Experientia
Authors :
הרשנהורן, יוסף
;
.
Volume :
47
Co-Authors:

Stierle, A.A., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Upadhyay, R., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Strobel, G.A., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Molina, G., Fundacion Hondurena de Investigacion Agricola APDO, Postal 2067, San Pedro Sula, Honduras

Facilitators :
From page:
853
To page:
859
(
Total pages:
7
)
Abstract:
Black Sigatoka is the most costly to control disease of bananas and plantains in the world. Currently, a worldwide search is underway either to find or to produce cultivars that are disease-resistant or-tolerant. Phytotoxins isolated from the pathogen might facilitate the discovery of such cultivars. Several aromatic compounds from liquid cultures of Mycosphaerella fijiensis, the causal agent of Black Sigatoka disease of bananas and plantains, have been isolated. The most abundant and phytotoxic of these compounds is 2,4,8-trihydroxytetralone, which induces necrotic lesions at 5 μg/5 μl in less than 12 h on sensitive cultivars of bananas. This compound exhibits host-selectivity that mimics that of the pathogen. Other phytotoxins isolated from this fungus, in lesser amounts, were juglone, the novel compound 2-carboxy-3-hydroxycinnamic acid, isoochracinic acid and 4-hydroxyscytalone. Some of the phytotoxins isolated are melanin shunt pathway metabolites, which makes this fungus unique among plant pathogens. © 1991 Birkhäuser Verlag.
Note:
Related Files :
2,4,8-trihydroxytetralone
epidemic
juglone
melanin shunt pathway
Plant pathogen
Sigatoka
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF01922472
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20818
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:39
Scientific Publication
The phytotoxins of Mycosphaerella fijiensis, the causative agent of Black Sigatoka disease of bananas and plantains
47

Stierle, A.A., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Upadhyay, R., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Strobel, G.A., Department of Plant Pathology, Montana State University, Bozeman, 59717, Montana, United States
Molina, G., Fundacion Hondurena de Investigacion Agricola APDO, Postal 2067, San Pedro Sula, Honduras

The phytotoxins of Mycosphaerella fijiensis, the causative agent of Black Sigatoka disease of bananas and plantains
Black Sigatoka is the most costly to control disease of bananas and plantains in the world. Currently, a worldwide search is underway either to find or to produce cultivars that are disease-resistant or-tolerant. Phytotoxins isolated from the pathogen might facilitate the discovery of such cultivars. Several aromatic compounds from liquid cultures of Mycosphaerella fijiensis, the causal agent of Black Sigatoka disease of bananas and plantains, have been isolated. The most abundant and phytotoxic of these compounds is 2,4,8-trihydroxytetralone, which induces necrotic lesions at 5 μg/5 μl in less than 12 h on sensitive cultivars of bananas. This compound exhibits host-selectivity that mimics that of the pathogen. Other phytotoxins isolated from this fungus, in lesser amounts, were juglone, the novel compound 2-carboxy-3-hydroxycinnamic acid, isoochracinic acid and 4-hydroxyscytalone. Some of the phytotoxins isolated are melanin shunt pathway metabolites, which makes this fungus unique among plant pathogens. © 1991 Birkhäuser Verlag.
Scientific Publication
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