The effect of lead on photosynthesis and respiration in detached leaves and in mesophyll protoplasts of Pisum sativum

Parys, E.; Romanowska, E.; Siedlecka, M.; Poskuta, J.W.

Acta Physiologiae Plantarum 20(3): 313-322

1998


ISSN/ISBN: 0137-5881
DOI: 10.1007/s11738-998-0064-7
Accession: 003301994

Download citation:  
Text
  |  
BibTeX
  |  
RIS

Article/Abstract emailed within 0-6 h
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

Abstract
Photosynthesis and transpiration rate of detached leaves of pea (Pisum sativum L. cv. Ilowiecki) exposed to solution of Pb(NO3)2 at 1 or 5 mmolcntdotdm-3 concentrations were inhibited. The higher concentration of this toxicant decreased photosynthesis and transpiration rates 2 and 3 times respectively, and increased respiration by about 20%, as measured after 24 hours of treatment. Similarly to Pb(NO3)2, glyceraldehyde solution, an inhibitor of phosphoribulokinase, at 50 mmolcntdotdm-3 concentration decreased the rates of photosynthesis and transpiration during introduction into pea leaves. The rate of dark respiration, however, remained unchanged during 2 hours of experiment.

The effect of lead on photosynthesis and respiration in detached leaves and in mesophyll protoplasts of Pisum sativum