Interaction of root-lesion nematode (Pratylenchus thornei) and crown rot fungus (Fusarium culmorum) associated with spring wheat resistance under simulated field conditions
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The root-lesion nematode, Pratylenchus thornei, and the crown rot fungus, Fusarium culmorum, cause tremendous damage to a wide range of grain crops, resulting in significant economic losses in the global yield production. The presence of both pathogens simultaneously in cereal fields puts more pressure on breeding programs, restricting new resistant cultivars to express their potential. This study investigated 150 spring wheat lines of the 18KASIB-CORE nursery for their host suitability to P. thornei and F. culmorum, inoculated singly or in combination. Forty-eight lines were resistant to P. thornei, while 16 lines were moderately resistant to F. culmorum. Among these, nine lines maintained their resistance reaction against the complex disease involving both pathogens, while only four lines provided resistance against individual and combined infestations. Infestation scenarios of both pathogens were monitored for each resistant variety and predicted using both reproduction factor and disease index. Pratylenchus thornei downgraded all resistant lines to F. culmorum, facilitating infestation and making their severity more pronounced (169% cumulative damage) with a negative impact on yield performance. These findings are useful for improving nematode x fungus resistance in wheat and selecting promising germplasm for breeding purposes against both diseases.
Açıklama
The authors would like to thank the Plant Protection Department at Bolu Abant Izzet Baysal University and CIMMYT's Soil Borne Pathogen Program (SBP) for funding this research. Special thanks also go to the Turkish Ministry of Food Agriculture and Livestock (TMFAL) for their support. The first author was supported by the VLIR-UOS scholarship in accomplishing this research. The CIMMYT-Turkey program is acknowledged for providing spring wheat germplasm. This study is part of an M.Sc. dissertation by SalahEddine Laasli.
Anahtar Kelimeler
Spring Wheat, Crown Rot, Host Suitability, Plant-Parasitic Nematodes, Cereal Cyst Nematodes, Heterodera-Avenae
Kaynak
Phytoparasitica
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
50
Sayı
4
Künye
Laasli, S. E., Imren, M., Özer, G., Mokrini, F., Lahlali, R., Bert, W., ... & Dababat, A. A. (2022). Interaction of root-lesion nematode (Pratylenchus thornei) and crown rot fungus (Fusarium culmorum) associated with spring wheat resistance under simulated field conditions. Phytoparasitica, 50(4), 789-809.
