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HEATHER RAY | Rochfort Gene Consulting

HEATHER RAY | Rochfort Gene Consulting

Plant Genetics and Genomics Consultant

T (306) 292.5562
Email: info@rochfortgeneconsulting.com

Rochfort Gene Consulting
134 107th Street West. Saskatoon. SK S7N1P1 Canada

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May 30, 2023

Fusarium Sambucinum

Fusarium Sambucinum

by Rochfort Gene Consulting / Saturday, 01 August 1998 / Published in Publication, Research

Responses of potato tuber to infection by Fusarium sambucinum

Abstract
Fusarium sambucinumcauses dry rot in tubers ofSolanum tuberosum. Since relatively little is known about the nature of dry rot disease development, infection ofF. sambucinumon tissue discs prepared from tubers of potato varieties that are susceptible or moderately resistant to this disease was studied. Increases in lignin content, and polyphenol oxidase and peroxidase activities were detected after infection. Peroxidase increased most strongly in tuber tissue that was just ahead of the advancing hyphae. Constitutive polyphenol oxidase activity was highest in the more resistant as compared to susceptible varieties. Polyphenol oxidase and peroxidase activities as well as content of chorogenic acid and the sesquiterpenes rishitin, lubimin, phytuberin and phytuberol increased as a result of infection. These increases correlated with the amount of tissue infected rather than the resistance of the tuber tissue to infection.

Article Contributors:

Heather Ray at Rochfort Gene Consulting
Ray Hammerschmidt at Michigan State University

Responses of potato tuber to infection by Fusarium sambucinum | Request PDF. Available from: https://www.researchgate.net/publication/240441358_Responses_of_potato_tuber_to_infection_by_Fusarium_sambucinum

Tagged under: Physiological and Molecular Plant Pathology

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