Correlation of fungal penetration, CWDE activities and defense-related genes with resistance of durum wheat cultivars to Zymoseptoria tritici

被引：12
|
作者：
Somai-Jemmali, L. [1 ]
Siah, A. [2 ]
Harbaoui, K. [3 ]
Fergaoui, S. [3 ]
Randoux, B. [4 ]
Magnin-Robert, M. [4 ]
Halama, P. [2 ]
Reignault, P. [4 ]
Hamada, W. [1 ]
机构：
[1] Inst Natl Agron Tunisie, Lab Genet & Ameliorat Plantes, 43 Ave Charles Nicolle, Tunis 1082, Tunisia
[2] Inst Super Agr, Inst Charles Viollette, EA 7394, 48 Blvd Vauban, F-59046 Lille, France
[3] Reg Field Crops Res Ctr CRRGC Beja Tunisia, BP 350, Beja 9000, Tunisia
[4] Univ Littoral Cote dOpale, Unite Chim Environm & Interact Vivant, EA 4492, CS 80699, F-62228 Calais, France
来源：
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY | 2017年 / 100卷
关键词：
Triticum durum; Zymoseptoria tritici; Defense; Genes; Expression; REAL-TIME PCR; PATHOGEN MYCOSPHAERELLA-GRAMINICOLA; SEPTORIA-TRITICI; HYDROGEN-PEROXIDE; LEAF BLOTCH; INFECTION; TUNISIA; PROTEIN; ASSOCIATION; ARABIDOPSIS;
D O I：
10.1016/j.pmpp.2017.08.003
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
We investigated here for the first time the infectious process and CWDE activities of Zymoseptoria tritici on durum wheat (DW), by using three Tunisian cultivars with different susceptibility levels to the pathogen: Karim (susceptible), Nasr (moderately resistant) and Salim (resistant). High DW resistance level was associated with decreased direct leaf penetration at early stage of infection and with reduced sporulation and production of CWDE (endo-beta-1,4-xylanase and endo-beta-1,3-glucanase) and protease activities during the necrotrophic phase. Furthermore, the expression pattern of six wheat defense-related genes, including GLUC, Chi 4, POX, Msr and Bsi1, exhibited significant differences between resistant and susceptible DW cultivars. Altogether, these results provide new insight into the nonspecific resistance mechanisms in durum wheat against Z. tritici. (C) 2017 Elsevier Ltd. All rights reserved.
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收藏
页码：117 / 125
页数：9
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