Effect of S-methylmethionine on the photosynthesis in maize at different chilling temperatures

Eszter Kósa, Dóra Szego, E. Horváth, Ilona Rácz, Z. Szigeti, Demeter Lásztity, E. Páldi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The effect of the natural compound S-methylmethionine (SMM) on the functioning of the photosynthetic apparatus, the efficiency of photosynthesis and the synthesis of stress-induced phenoloids and anthocyanins involved in defence was investigated in young maize plants exposed to moderate and severe chilling stress. Damage to PSII was observduction in Fv/Fm was more pronounced. Changes in the value of net photosynthesis exhibited a similar tendency. SMM has a moderating effect on this reduction and its protective effect was more pronounced under long-lasting chilling stress and at the lowest temperatures. Monitoring of fluorescence intensities and ratios correlated with the levels of stress defence compounds. The fluorescence intensities were found to increase over the course of chilling stress in response to SMM, with the highest values being recorded in plants exposed to the longest period of stress. A similar tendency was observed for the quantity of anthocyanins. The results confirm the complex role of SMM, which is manifested both in preserving the ability of the photosynthetic apparatus to function and in stimulating the synthesis of metabolites involved in stress defence.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalCentral European Journal of Biology
Volume6
Issue number1
DOIs
Publication statusPublished - 2011

Fingerprint

Vitamin U
Chilling
Photosynthesis
Zea mays
photosynthesis
Temperature
corn
Anthocyanins
anthocyanins
fluorescence
temperature
synthesis
Fluorescence
protective effect
stress response
metabolites
monitoring
Metabolites
cold treatment
Monitoring

Keywords

  • Anthocyanin content
  • Chilling stress
  • Chlorophyll-a fluorescence parameters
  • Net photosynthesis
  • S-methylmethionine
  • Zea mays

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Neuroscience(all)

Cite this

Effect of S-methylmethionine on the photosynthesis in maize at different chilling temperatures. / Kósa, Eszter; Szego, Dóra; Horváth, E.; Rácz, Ilona; Szigeti, Z.; Lásztity, Demeter; Páldi, E.

In: Central European Journal of Biology, Vol. 6, No. 1, 2011, p. 75-83.

Research output: Contribution to journalArticle

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AU - Lásztity, Demeter

AU - Páldi, E.

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