title: Process of Bipolaris sorghicola invasion of host cells.
abstract: Target leaf spot is a sorghum leaf disease caused by Bipolaris sorghicola, a species of fungus with a global distribution. In this study, we investigated the process by which B. sorghicola invades cells of barley, onion, Arabidopsis thaliana species, and sorghum. The results showed that within 8 h of coming into contact with host cells, the hyphal ends of B. sorghicola expand and form a uniform infective penetration pegbolt-like structure; a primary infection mycelium can be formed inside host cells within 24 h after contact, which can infect closed cells after 48 h. A mycelium can grow within the gap between cells and form infective hyphae. The pathogen infection process was the same in different host cells. B. sorghicola can affect root cells through soil infection, indicating that it may also have characteristics of soil-borne pathogens.
authors.affiliation: State Key Laboratory for the Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.|Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: C
authors.initials: C
authors.lastname: Peng
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: T T
authors.initials: TT
authors.lastname: Ge
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: X L
authors.initials: XL
authors.lastname: He
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: Y H
authors.initials: YH
authors.lastname: Huang
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: Z L
authors.initials: ZL
authors.lastname: Xu
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: D Y
authors.initials: DY
authors.lastname: Zhang
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: H B
authors.initials: HB
authors.lastname: Shao
authors.affiliation: Provincial Key Laboratory of Agrobiology/Institute of Agrobiotechnology, Nanjing, Jiangsu, China.
authors.forename: S W
authors.initials: SW
authors.lastname: Guo
mesh_terms: D017360:Arabidopsis / Q000382:microbiology; D001203:Ascomycota / Q000502:physiology*; D001467:Hordeum / Q000382:microbiology; D054884:Host-Pathogen Interactions; D019697:Onions / Q000382:microbiology; D018517:Plant Roots / Q000382:microbiology*; D012988:Soil Microbiology; D045868:Sorghum / Q000382:microbiology