Aggressiveness Assessment of Two Fusarium spp. on Durum Wheat Grain Coleoptiles under Controlled Conditions  

作　　者：Salah Hadjout Mohamed Zouidi Houcine Bougrine Abdeldjalil Belkendil Amer Zeghmar Walid Ouaret Walid Soufan Fathi Abdellatif Belhouadjeb 

机构地区：[1]Centre de Recherche en Amenagement du Territoire(CRAT),Campus Zouaghi Slimane,Route de Ain el Bey,Constantine,25000,Algerie [2]Ecole Nationale Superieure Agronomique(ENSA),Alger,16200,Algerie [3]Department of Geographical Sciences,University of Maryland,College Park,MD 20742,USA [4]Plant Production Department,College of Food and Agriculture Sciences,King Saud University,Riyadh,11451,Saudi Arabia [5]Centre de Recherche en Agropastoralisme(CRAPast),Djelfa,17000,Algerie

出　　处：《Phyton-International Journal of Experimental Botany》2024年第11期2983-2992,共10页国际实验植物学杂志（英文）

基　　金：This Research was funded by la Direction Générale de la Recherche Scientifique et du Développement Technologique(DGRSDT),Algeria,and the Researchers Supporting Project number(RSP2024R390),King Saud University,Riyadh,Saudi Arabia.

摘　　要：Fusarium head blight(FHB)is a disease caused by several Fusarium species,notably,F.culmorum and F.grami-nearum.These pathogens adversely affect the technological and sanitary qualities of cereal grains,particularly durum wheat.Under favorable environmental conditions and in susceptible varieties,these Fusarium species can significantly reduce both the quantity and quality of crops.This study evaluated the pathogenicity of the two Fusarium species(FC2006 and FG2008)in the growth of durum wheat coleoptiles.The plant material included four commercially grown parental varieties(G9,G10,G11,G12)and eight breeding lines(G1,G2,G3,G4,G5,G6,G7,G8).In vitro tests revealed that both Fusarium species significantly reduced the coleoptile growth across the studied varieties and lines(p≤0.001).The control test had an average coleoptile length of 37.87 mm.In contrast,seeds inoculated with FC2006 had an average length of 0.62 mm,and those inoculated with FG2008 had only 0.064 mm.Although there was a slight difference in aggressiveness between the two spe-cies,it was not statistically significant(p>0.05).Some variability was also noted in the responses of the durum wheat varieties and lines.The G8 genotype showed remarkable behavior in both isolates,with an average length of 1.83 mm for FC2006 and 0.4 mm for FG2008.The other genotypes showed total inhibition of coleoptile growth(0 mm).Thesefindings highlight the importance of conducting further research on the defense mechanisms of durum wheat against Fusarium and assessing the local varieties’pathogenicity to better explore the interactions between these pathogens and durum wheat genotypes under in vitro conditions.

关 键 词：Fusarium species AGGRESSIVENESS coleoptile growth durum wheat in vitro test 

分 类 号：S512.1[农业科学—作物学]