Susceptibility of non-cereal crops to Fusarium graminearum complex and their role within cereal crop rotation as a source of inoculum for Fusarium head blight

Spanish Journal of Agricultural Research

Neringa Rasiukeviciute¹  Jurgita Kelpsiene²  Skaidre Suproniene³ 

[1] Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, LT-58344, Akademija, Kėdainiai distr.;Latvian Plant Protection Research Centre, Struktoru 14a, Riga, LV-1039;Nature Research Centre, Akademijos str. 2, LT-08412, Vilnius

关键词: Beta vulgaris var. saccharifera;    Brassica napus;    pathogenicity;    Pisum sativum;    Solanum tuberosum;    Viola arvensis;   

DOI  :  10.5424/sjar/2018164-13952

学科分类：农业科学（综合）

来源: I N I A

【 摘 要 】

Fusarium graminearum , the cause of Fusarium head blight (FHB), is an important cereal pathogen. Moreover, some non-graminaceous crops are also known to be susceptible toF. graminearuminfection. This study assessed the presence ofF. graminearumspecies complex on non-cereal plants, grown in a cereal crop rotation and evaluated its pathogenicity to non-cereal plantsin vitroand to spring wheat under field conditions. The relative density ofFusariumspecies isolated from oilseed rape, pea, potato and sugar beet plants was assessed in 2015 and 2016 .A total of 403 isolates ofFusariumspp. were obtained from non-cereal plants and only 5% of the isolates were identified asF. graminearum . The pathogenicity test revealed that isolates ofF. graminearumfrom spring wheat and non-cereal plants caused discolourations on leaves of faba bean, fodder beet, oilseed rape, pea, potato and sugar beet. The pea was the crop most susceptible toF. graminearumisolated from spring wheat. The pathogenicity ofF. graminearumfrom sugar beet, oilseed rape, pea and potato to the same hosts differed depending on isolate and inoculated plant. Under field conditions,F. graminearumisolates from pea, potato, oilseed rape and wild viola were able to cause typical FHB symptoms in spring wheat. Based on the information generated in this study, we conclude that under congenial conditions, growing faba bean, pea, sugar beet, fodder beet, oilseed rape and potato plants in a cereal crop rotation may serve as alternative or reservoir hosts forF. graminearumpathogens.

【 授权许可】

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