Photosynthetica

, Volume 50, Issue 3, pp 477–480 | Cite as

Is the rate of photosynthesis under blue light altered in the 7B-1 tomato mutant?

  • E. Ježilová
  • M. Fellner
  • V. Bergougnoux
  • M. Špundová
Brief Communication

Abstract

Changes of photosynthesis under blue light were examined in the ABA-overproducing 7B-1 mutant in tomato. Net photosynthetic rate (PN), stomatal conductance (gs), intrinsic water-use efficiency (WUEi) and chlorophyll (a+b) [Chl (a+b)] content in leaves of different insertion (1st, 4th and 9th ones) were measured in 5-, 7- and 9-week-old plants. PN, gs, and Chl (a+b) content were mostly similar in young leaves of 7B-1 and wild type (WT) plants. With the aging of leaves, a blue-light-induced increase in PN and gs to steady-state was delayed and steady-state values of PN and gs were lower in 7B-1 plants compared with WT. Steady-state values of WUEi were increased in 4th and 9th leaves of 7B-1 plants compared with WT. The results can be explained by the higher endogenous level of ABA in 7B-1 plants and their lower sensitivity to ABA in earlier growth stage.

Additional key words

ABA-overproducer chlorophyll content net photosynthetic rate Solanum lycopersicum stomatal conductance tomato mutant 

Abbreviations

ABA

abscisic acid

Chl

chlorophyl

gs

stomatal conductance

PN

net photosynthetic rate

WT

wild type

WUEi

intrinsic water-use efficiency

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References

  1. Assmann, S.M., Shimazaki, K.-I.: The multisensory guard cell. Stomatal responses to blue light and abscisic acid. — Plant Physiol. 119: 809–815, 1999.PubMedCrossRefGoogle Scholar
  2. Fellner, M., Sawhney, V.K.: The 7B-1 mutant in tomato shows blue-light-specific resistance to osmotic stress and abscisic acid. — Planta 214: 675–682, 2002.PubMedCrossRefGoogle Scholar
  3. Fellner, M., Zhang, R., Pharis, R.P., Sawhney, V.K.: Reduced de-etiolation of hypocotyl growth in a tomato mutant is associated with hypersensitivity to, and high endogenous level of, abscisic acid. — J. Exp. Bot. 52: 725–738, 2001.PubMedGoogle Scholar
  4. Košvancová-Zitová, M., Urban, O., Navrátil, M., Špunda, V., Robson, T.M., Marek, M.V.: Blue radiation stimulates photosynthetic induction in Fagus sylvatica L. — Photosynthetica 47: 388–398, 2009.CrossRefGoogle Scholar
  5. Lichtenthaler, H.K.: Chlorophyll and carotenoids: Pigments of photosynthetic biomembranes. — Meth. Enzymol. 148: 350–382, 1987.CrossRefGoogle Scholar
  6. Majer, P., Hideg, E.: Developmental stage is an important factor that determines the antioxidant responses of young and old grapevine leaves under UV irradiation in a green-house. — Plant Physiol. Biochem. 50: 15–23, 2012.PubMedCrossRefGoogle Scholar
  7. Ögren, E., Sundin, U.: Photosynthetic responses to variable light: a comparison of species from contrasting habitats. — Oecologia 106: 18–27, 1996.Google Scholar
  8. Thompson, A.J., Andrews, J., Mulholland, B.J. et al.: Overproduction of abscisic acid in tomato increases transpiration efficiency and root hydraulic conductivity and influences leaf expansion. — Plant Physiol. 143: 1905–1917, 2007.PubMedCrossRefGoogle Scholar
  9. Xu, H.-L., Gauthier, L., Desjardins, Y., Gosselin, A.: Photosynthesis in leaves, fruits, stem and petioles of greenhouse-grown tomato plants. — Photosynthetica 33: 113–123, 1997.CrossRefGoogle Scholar
  10. Zhang, X., Zang, R., Li, C.: Population differences in physiological and morphological adaptations of Populus davidiana seedlings in response to progressive drought stress. — Plant Sci. 166: 791–797, 2004.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • E. Ježilová
    • 1
  • M. Fellner
    • 2
  • V. Bergougnoux
    • 2
    • 3
  • M. Špundová
    • 1
  1. 1.Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Biophysics, Faculty of SciencePalacký UniversityOlomoucCzech Republic
  2. 2.Group of Molecular Physiology, Laboratory of Growth RegulatorsPalacký University & Institute of Experimental Botany ASCROlomoucCzech Republic
  3. 3.Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Molecular Biology, Faculty of SciencePalacký UniversityOlomoucCzech Republic

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