Back to Search Start Over

Fusarium Wilt of Coriander: Root Cause Analysis and Varietal Tolerance Development

Authors :
David Chaimovitsh
Tali Kahane-Achinoam
Ohad Nuriel
Yael Meller Harel
David Silverman
Nadav Nitzan
Omer Frenkel
Itay Gonda
Source :
Plants, Vol 13, Iss 15, p 2135 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Since 2012, growers of coriander, Coriandrum sativum L., in Israel have been suffering from summer wilting that can result in entire fields collapsing. The current study aimed to determine the cause of the phenomenon and find a genetic solution to the problem. The disease was reproduced in a growth chamber using naturally-infested soil from a commercial field. Wilt became apparent within two weeks, and after ten weeks, all plants died compared to plants in sterilized soil from the same source. Fusarium oxysporum was isolated from infected plants, and Koch’s postulates were completed. Sequence analysis of the Elongation Factor (EF1α) encoding gene of the pathogen had a 99.54% match to F. oxysporum f. sp. coriandrii. Several coriander varieties were screened for resistance or tolerance to the disease. In four independent experiments, only the cultivar ‘Smadi’ showed high tolerance, while other genotypes were susceptible. In a trial in a naturally infested field, the cultivar ‘Smadi’ outperformed the commercial cultivar ‘Blair’. ‘Smadi’ provides a cropping solution to many Israeli farmers, yet this winter cultivar bolts early in the summer. There is a further need to characterize the tolerance mechanism and inheritance for informed breeding of late-bolting Fusarium-resistant coriander.

Details

Language :
English
ISSN :
22237747
Volume :
13
Issue :
15
Database :
Directory of Open Access Journals
Journal :
Plants
Publication Type :
Academic Journal
Accession number :
edsdoj.f2c0caa027c94d4098189ccf5d5ebe26
Document Type :
article
Full Text :
https://doi.org/10.3390/plants13152135