Chlorophyllase activity and chlorophyll content in wild type and eti 5 mutant of Arabidopsis thaliana subjected to low and high temperatures

E. N. Karanov, Michael Hall, Aileen R. Smith, D. T. Todorov

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55 Citations (SciVal)

Abstract

Chlorophyll a (Chl a) content and chlorophyllase (Chlase) activity from leaves of wild type (WT) and the ethylene-insensitive mutant (eti 5) of Arabidopsis thaliana (L.) Heynh during temperature stress and plant recovery have been studied. The plants were subjected to temperatures of 4 °C (LT) and 38 °C (HT) for 24 h. Chl a gradually decreased somewhat during stress and in the first day of recovery, especially in HT-treated plants. At the end of the experimental period (1 d stress and 10 d recovery) Chl a content was lower in eti 5 plants than in WT ones. The Chlase in WT was more affected than in eti 5 plants during the temperature treatment and the recovery period.
Original languageEnglish
Pages (from-to)633-636
Number of pages4
JournalBiologia Plantarum
Volume46
Issue number4
DOIs
Publication statusPublished - May 2003

Keywords

  • chilling stress
  • ethylene-insensitive mutant
  • heat stress

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