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Citation for Study 23719

Citation title: "Powdery mildew caused by Golovinomyces spadiceus on wild sunflower.".

Study name: "Powdery mildew caused by Golovinomyces spadiceus on wild sunflower.".

This study is part of submission 23719 (Status: Published).

Citation

F?lix-gast?lum R., Olivas-peraza D., Quiroz-figueroa F.R., Leyva-madrigal K.Y., Pe?uelas-rubio O., Espinosa-mat?as S., & Maldonado-mendoza I.E. 2018. Powdery mildew caused by Golovinomyces spadiceus on wild sunflower. Canadian Journal of Plant Pathology, .

Authors

• F?lix-gast?lum R.
• Olivas-peraza D.
• Quiroz-figueroa F.R. +521 687 110 2902
• Leyva-madrigal K.Y.
• Pe?uelas-rubio O.
• Espinosa-mat?as S.
• Maldonado-mendoza I.E. (submitter) 001526878729626

Abstract

Wild sunflower is a common weed that grows among agricultural crops in many parts of the world, where it is both highly invasive and competitive and can act as a reservoir for certain plant pathogens. Recently, signs of powdery mildew (PM) were observed in wild sunflower in Sinaloa, Mexico. The aim of this study was to identify the causal agent of PM in wild sunflower based on morphology and molecular techniques, and to determine its pathogenicity in a commercial sunflower hybrid. Morphometric analyses, particularly conidia diameter and germ tube length, confirmed the identity of the fungus in wild sunflowers as G. spadiceus. Phylogenetic analysis of the ITS regions grouped the obtained sequences within lineage III of the genus Golovinomyces, which comprises pathogenic species of the plant tribe Heliantheae. However, it was not possible to differentiate between G. ambrosiae and G. spadiceus due to their close phylogenetic relationship. Inoculation tests under greenhouse conditions confirmed the pathogenicity of G. spadiceus in wild sunflower and in the commercial sunflower hybrid SYN3950HO. The signs displayed by the two types of sunflower were similar to those observed under field conditions and in two independent inoculation tests. The commercial hybrid and wild sunflower showed susceptibility to the pathogen in two independent pathogenicity tests. Our results confirm that wild sunflower is a potential source of G. spadiceus inoculum for commercial sunflower during the fall-winter growing season.

Keywords

inoculum source, sunflower powdery mildew, anamorph, morphology, Golovinomyces spadiceus.

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S23719
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref29121,
  	 author = {Rub?n  F?lix-Gast?lum and Daniela  Olivas-Peraza and Francisco Roberto Quiroz-Figueroa and Karla Yeriana Leyva-Madrigal and Ofelda  Pe?uelas-Rubio and Silvia  Espinosa-Mat?as and Ignacio  Eduardo Maldonado-Mendoza},
  	 title = {Powdery mildew caused by Golovinomyces spadiceus on wild sunflower.},
  	 year = {2018},
  	 keywords = {inoculum source, sunflower powdery mildew, anamorph, morphology, Golovinomyces spadiceus.},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Canadian Journal of Plant Pathology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Wild sunflower is a common weed that grows among agricultural crops in many parts of the world, where it is both highly invasive and competitive and can act as a reservoir for certain plant pathogens. Recently, signs of powdery mildew (PM) were observed in wild sunflower in Sinaloa, Mexico. The aim of this study was to identify the causal agent of PM in wild sunflower based on morphology and molecular techniques, and to determine its pathogenicity in a commercial sunflower hybrid. Morphometric analyses, particularly conidia diameter and germ tube length, confirmed the identity of the fungus in wild sunflowers as G. spadiceus. Phylogenetic analysis of the ITS regions grouped the obtained sequences within lineage III of the genus Golovinomyces, which comprises pathogenic species of the plant tribe Heliantheae. However, it was not possible to differentiate between G. ambrosiae and G. spadiceus due to their close phylogenetic relationship. Inoculation tests under greenhouse conditions confirmed the pathogenicity of G. spadiceus in wild sunflower and in the commercial sunflower hybrid SYN3950HO. The signs displayed by the two types of sunflower were similar to those observed under field conditions and in two independent inoculation tests. The commercial hybrid and wild sunflower showed susceptibility to the pathogen in two independent pathogenicity tests. Our results confirm that wild sunflower is a potential source of G. spadiceus inoculum for commercial sunflower during the fall-winter growing season. }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 29121
  AU  - F?lix-Gast?lum,Rub?n 
  AU  - Olivas-Peraza,Daniela 
  AU  - Quiroz-Figueroa,Francisco Roberto
  AU  - Leyva-Madrigal,Karla Yeriana
  AU  - Pe?uelas-Rubio,Ofelda 
  AU  - Espinosa-Mat?as,Silvia 
  AU  - Maldonado-Mendoza,Ignacio  Eduardo
  T1  - Powdery mildew caused by Golovinomyces spadiceus on wild sunflower.
  PY  - 2018
  KW  - inoculum source
  KW  - sunflower powdery mildew
  KW  - anamorph
  KW  - morphology
  KW  - Golovinomyces spadiceus.
  UR  - http://dx.doi.org/
  N2  - Wild sunflower is a common weed that grows among agricultural crops in many parts of the world, where it is both highly invasive and competitive and can act as a reservoir for certain plant pathogens. Recently, signs of powdery mildew (PM) were observed in wild sunflower in Sinaloa, Mexico. The aim of this study was to identify the causal agent of PM in wild sunflower based on morphology and molecular techniques, and to determine its pathogenicity in a commercial sunflower hybrid. Morphometric analyses, particularly conidia diameter and germ tube length, confirmed the identity of the fungus in wild sunflowers as G. spadiceus. Phylogenetic analysis of the ITS regions grouped the obtained sequences within lineage III of the genus Golovinomyces, which comprises pathogenic species of the plant tribe Heliantheae. However, it was not possible to differentiate between G. ambrosiae and G. spadiceus due to their close phylogenetic relationship. Inoculation tests under greenhouse conditions confirmed the pathogenicity of G. spadiceus in wild sunflower and in the commercial sunflower hybrid SYN3950HO. The signs displayed by the two types of sunflower were similar to those observed under field conditions and in two independent inoculation tests. The commercial hybrid and wild sunflower showed susceptibility to the pathogen in two independent pathogenicity tests. Our results confirm that wild sunflower is a potential source of G. spadiceus inoculum for commercial sunflower during the fall-winter growing season. 
  L3  - 
  JF  - Canadian Journal of Plant Pathology
  VL  - 
  IS  - 
  ER  -