Early morning photosynthesis of the moss Tortula ruralis following summer dew fall in a Hungarian temperate dry sandy grassland

Zsolt Csintalan, Zoltán Takács, Michael C.F. Proctor, Zoltán Nagy, Zoltán Tuba

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Air temperature and humidity, moss surface temperature, moss water content, and photosynthetically active radiation were measured through a clear dry night and early morning in July 1998; CO2 gas exchange of the moss was measured by infra-red gas analysis. The measurements showed progressive absorption of water by the moss through much of the night. The moss reached sufficient water content for about 1.5 h of positive net CO2 uptake immediately after dawn. The cumulative net carbon balance on this occasion was negative, but mornings with heavier dew could give a positive daily carbon balance, and short, early morning periods of photosynthesis during prolonged dry weather may mitigate long-term desiccation damage and allow for regular molecular repair.

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalPlant Ecology
Volume151
Issue number1
DOIs
Publication statusPublished - Dec 1 2000

Keywords

  • Carbon balance
  • Desiccation tolerance
  • Rehydration

ASJC Scopus subject areas

  • Ecology
  • Plant Science

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