Peeling the Onion: Towards a Better Understanding of Botrytis Diseases of Onion
Onion is cultivated worldwide for its bulbs, but production is threatened by pathogens and pests. Three distinct diseases of onion are caused by species that belong to the fungal genus Leaf blight is a well-known foliar disease caused by that can cause serious yield losses. Neck rot is a postharvest...
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Veröffentlicht in: | Phytopathology 2021-03, Vol.111 (3), p.464-473 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Onion is cultivated worldwide for its bulbs, but production is threatened by pathogens and pests. Three distinct diseases of onion are caused by species that belong to the fungal genus
Leaf blight is a well-known foliar disease caused by
that can cause serious yield losses. Neck rot is a postharvest disease that manifests in bulbs after storage and is associated with three species:
,
, and
. The symptomless infection of onion plants in the field makes it difficult to predict the incidence of neck rot in storage, although progress on the detection of latent infection has been made. In onion cultivation for seed production, blighting of the inflorescence is caused by all four onion-specific
species plus the broad host range pathogen
. Flower blight can reduce seed yield and contaminate seed. In this review, the long history of
diseases of onion is discussed, as well as recent and future approaches to acquire a better understanding of the biology and ecology of
spp. pathogenic on onion. New fundamental insights in the genetic, biochemical, and physiological aspects of
-onion interactions are essential to improve the breeding of
-resistant onion cultivars.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license. |
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ISSN: | 0031-949X 1943-7684 |
DOI: | 10.1094/PHYTO-06-20-0258-IA |