Growth, photosynthesis and respiration in Plantago coronopus as affected by salinity

Tjeerd Blacquière, Hans Lambers

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Plantago coronopus was grown in a non‐saline culture solution and in a culture solution containing 50 mM NaCl. The rates of dry matter accumulation in both roots and shoots were not affected by 50 mM NaCl. Photosynthesis, expressed per shoot, was also the same in both environments. Neither the rate of shoot respiration nor that of root respiration was affected by salinity. In both environments the alternative respiratory pathway contributed to the same extent in root respiration. The activity of the alternative pathway decreased with increasing age. Since the respiratory activities were the same in plants grown under both saline and non‐saline conditions and since the alternative respiratory pathway was also equally active in roots under both environmental conditions, it is concluded that respiratory costs involved in growth in 50 mM NaCl are negligible in terms of the plant's total energy costings.

Original languageEnglish
Pages (from-to)265-268
Number of pages4
JournalPhysiologia Plantarum
Volume51
Issue number3
DOIs
Publication statusPublished - 1 Jan 1981
Externally publishedYes

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