title: The Magnaporthe grisea species complex and plant pathogenesis.
abstract: Kingdom Fungi; Phylum Ascomycota; Class Sordariomycetes; Order Magnaporthales; Family Pyriculariaceae (anamorph)/Magnaporthaceae (teleomorph); Genus Pyricularia (anamorph)/Magnaporthe (teleomorph); Species P. grisea (anamorph)/M. grisea (teleomorph).
  
  
  
  Very broad at the species level, including rice, wheat, barley, millet and other species of the Poaceae (Gramineae).
  
  
  
  Can be found on all parts of the plant, including leaves, leaf collars, necks, panicles, pedicels, seeds and even the roots. Initial symptoms are white to grey-green lesions or spots with darker borders, whereas older lesions are elliptical or spindle-shaped and whitish to grey with necrotic borders. Lesions may enlarge and coalesce to eventually destroy the entire leaf.
  
  
  
  Includes cultural strategies, genetic resistance and the application of chemical fungicides.
  
  
  
  Widespread throughout the rice-growing regions of the globe and has been reported in more than 85 countries.
  
  
  
  Different isolates possess similar genomic sizes and overall genomic structures. For the laboratory strain 70-15: assembly size, 40.98 Mb; number of chromosomes, seven; number of predicted genes, 13 032; G + C composition, 51.6%; average gene contains 451.6 amino acids; mitochondrion genome size, 34.87 kb.
  
  
  
  http://www.broadinstitute.org/annotation/genome/magnaporthe_comparative/MultiHome.html.
authors.affiliation: Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China.
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China.
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Zheng
authors.affiliation: Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China.
authors.forename: Zhengguang
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D001483:Base Sequence; D054884:Host-Pathogen Interactions; D020082:Magnaporthe / Q000145:classification / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D010802:Phylogeny; D010935:Plant Diseases / Q000382:microbiology*; D009626:Terminology as Topic
keywords: Magnaporthe grisea species; genome; pathogenesis; phylogenetic relationship