Role of light in the development of post-chilling symptoms in maize

Research output: Contribution to journalArticle

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Abstract

The effect of light (250 μmol m-2 s-1) on the appearance of post- chilling symptoms was investigated in cold-treated maize (Zea mays L. hybrid Furio) seedlings using electrolyte leakage and chlorophyll flouorescence induction measurements as indicators. The longer the cold protreatment (0.5°C) in complete darkness, the more rapid the decrease in F(v)/F(m) and the increase in electrolyte leakage during cold treatment in the light. The most important difference in the changes in these two parameters is that the changes in F(v)/F(m) occur much earlier if the cold treatment is carried out in the light. These findings suggest that chilling stress in cold sensitive maize plants led to an increased susceptibility to photoinhibition at low temper attires. F(v)/F(m) and electrolyte leakage changed not only at low temperatures but also after a certain cold pretreatment period at normal temperature. When the seedlings were returned to 25°C after various chilling periods in the dark both parameters showed that post-chilling symptoms appeared much more rapidly in the light than in the dark. By contrast to the change in F(v)/F(m), where plants chilled for only two days exhibited differences in post-chilling changes in the light and clark, a substantial increase in electrolyte leakage was only observed after four days of cold pretreatment. Those results suggest that photoinhibition has a role not only during the chilling period, but also in the appearance of post-chilling symptoms.

Original languageEnglish
Pages (from-to)378-383
Number of pages6
JournalJournal of Plant Physiology
Volume148
Issue number3-4
Publication statusPublished - 1996

Fingerprint

signs and symptoms (plants)
Zea mays
Light
corn
Electrolytes
electrolytes
Seedlings
photoinhibition
Temperature
pretreatment
Darkness
Chlorophyll
cold treatment
seedlings
scotophase
cold stress
temperature
chlorophyll

Keywords

  • chilling
  • ion leakage
  • photoinhibition
  • post-chilling symptoms
  • Zea mays L.

ASJC Scopus subject areas

  • Plant Science

Cite this

Role of light in the development of post-chilling symptoms in maize. / Szalai, G.; Janda, T.; Páldi, E.; Szigeti, Z.

In: Journal of Plant Physiology, Vol. 148, No. 3-4, 1996, p. 378-383.

Research output: Contribution to journalArticle

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