Senescence Retarding Effect of Ca and Al Metal Ions: Induced Alterations In Pigment, Protein Content and Photochemical Activities In Rice (Oryza Sativa) Leaves

Effects of Ca and Al metal ions on senescence and photosynthesis in rice leaves

Authors

  • S. Sreedhar Author
  • T. Prabhakar Author
  • B. Praveen Kumar Author
  • S. D. S. Murthy Author

Keywords:

senescence, Ca, Al, metal ions, pigment, protein content, photochemical activities, rice, Oryza sativa, chlorophyll, carotenoids, thylakoid membranes, Photosystem II, Photosystem I, wholechain electron transport activities

Abstract

Al3+ significantly delayedthe loss of chlorophyll (Chl), protein and carotenoids when compared to Ca2+during dark-induced senescence of detached primary leaves of Rice (Oryza sativa). Thylakoid membranes isolated from Al3+ treated leavesshowed a better retention of Photosystem (PS II), Photosystem (PS I) and wholechain electron (WCE) transport activities than thyalokoid of Ca2+ treatedleaves.

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Published

2011-02-01

Issue

Vol. 1 No. 1 (2011): Journal of Advances in Science and Technology (JAST)

Section

Articles