Response of wheat fungal diseases to elevated atmospheric CO2 level

S. Bencze, G. Vida, K. Balla, E. Varga-László, O. Veisz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Infection with fungal pathogens on wheat varieties with different levels of resistance was tested at ambient (NC, 390 ppm) and elevated (EC, 750 ppm) atmospheric CO2 levels in the phytotron. EC was found to affect many aspects of the plant-pathogen interaction. Infection with most fungal diseases was usually found to be promoted by elevated CO2 level in susceptible varieties. Powdery mildew, leaf rust and stem rust produced more severe symptoms on plants of susceptible varieties, while resistant varieties were not infected even at EC. The penetration of Fusarium head blight (FHB) into the spike was delayed by EC in Mv Mambo, while it was unaffected in Mv Regiment and stimulated in Mv Emma. EC increased the propagation of FHB in Mv Mambo and Mv Emma. Enhanced resistance to the spread of Fusarium within the plant was only found in Mv Regiment, which has good resistance to penetration but poor resistance to the spread of FHB at NC. FHB infection was more severe at EC in two varieties, while the plants of Mv Regiment, which has the best field resistance at NC, did not exhibit a higher infection level at EC.The above results suggest that breeding for new resistant varieties will remain a useful means of preventing more severe infection in a future with higher atmospheric CO2 levels.

Original languageEnglish
Pages (from-to)409-419
Number of pages11
JournalCereal Research Communications
Volume41
Issue number3
DOIs
Publication statusPublished - Sep 1 2013

Fingerprint

Mycoses
Fusarium
Triticum
Fusarium head blight
wheat
Infection
infection
stem rust
resistance to penetration
leaf rust
Breeding
powdery mildew
plant pathogens
signs and symptoms (plants)
inflorescences
pathogens
breeding

Keywords

  • elevated CO
  • Fusarium culmorum
  • leaf rust
  • powdery mildew
  • stem rust
  • Triticum aestivum

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Physiology

Cite this

Response of wheat fungal diseases to elevated atmospheric CO2 level. / Bencze, S.; Vida, G.; Balla, K.; Varga-László, E.; Veisz, O.

In: Cereal Research Communications, Vol. 41, No. 3, 01.09.2013, p. 409-419.

Research output: Contribution to journalArticle

Bencze, S. ; Vida, G. ; Balla, K. ; Varga-László, E. ; Veisz, O. / Response of wheat fungal diseases to elevated atmospheric CO2 level. In: Cereal Research Communications. 2013 ; Vol. 41, No. 3. pp. 409-419.
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