Backes Aurélie, Guerriero Gea, Ait Barka Essaid, Jacquard Cédric
Unité de Recherche Résistance Induite et Bioprotection des Plantes, Université de Reims Champagne-Ardenne, Reims, France.
Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), Hautcharage, Luxembourg.
Front Plant Sci. 2021 Apr 6;12:614951. doi: 10.3389/fpls.2021.614951. eCollection 2021.
Net blotch, induced by the ascomycete , has become among the most important disease of barley ( L.). Easily recognizable by brown reticulated stripes on the sensitive barley leaves, net blotch reduces the yield by up to 40% and decreases seed quality. The life cycle, the mode of dispersion and the development of the pathogen, allow a quick contamination of the host. Crop residues, seeds, and wild grass species are the inoculum sources to spread the disease. The interaction between the barley plant and the fungus is complex and involves physiological changes with the emergence of symptoms on barley and genetic changes including the modulation of different genes involved in the defense pathways. The genes of net blotch resistance have been identified and their localizations are distributed on seven barley chromosomes. Considering the importance of this disease, several management approaches have been performed to control net blotch. One of them is the use of beneficial bacteria colonizing the rhizosphere, collectively referred to as Plant Growth Promoting Rhizobacteria. Several studies have reported the protective role of these bacteria and their metabolites against potential pathogens. Based on the available data, we expose a comprehensive review of including its morphology, interaction with the host plant and means of control.
由子囊菌引起的网斑病已成为大麦最重要的病害之一。在敏感的大麦叶片上，褐色的网状条纹很容易识别出网斑病，它会使产量降低多达40%，并降低种子质量。病原菌的生命周期、传播方式和发育过程，使得宿主能够迅速被感染。作物残茬、种子和野生草本植物是传播该病的接种源。大麦植株与真菌之间的相互作用很复杂，涉及到随着大麦症状出现的生理变化以及包括参与防御途径的不同基因调控在内的基因变化。已鉴定出抗网斑病的基因，其定位分布在七条大麦染色体上。鉴于这种病害的重要性，已经采取了几种管理方法来控制网斑病。其中之一是利用定殖于根际的有益细菌，统称为植物促生根际细菌。几项研究报道了这些细菌及其代谢产物对潜在病原体的保护作用。基于现有数据，我们对其进行了全面综述，包括其形态、与宿主植物的相互作用以及防治方法。
