Rubisco activity and gene expression of tropical tree species under light stress

  • Keum-Ah Lee
  • Seong Han Lee
  • Su Young Woo

Abstract

Tropical rain forests contain an ecologically and physiologically diverse range of vegetation and habitats. Sun-acclimated plants can be divided into two groups, shade-tolerant and shade-intolerant, according to the plant’s physiological and genetic responses. Some tropical species have potential capacity for light damage in a shaded environment as well as shade-tolerance to compensate for the impaired light harvesting complex. In particular, ribulose‐1,5‐bisphosphate carboxylase/oxygenase (Rubisco) is regulated by the Calvin cycle, which participated in protein synthesis. Rubisco plays a role in CO2 fixation, which helps supply the energy to regulate Rubisco for ribulose 1,5-bisphosphate (RuBP) reduction. Light intensity is associated with the photosynthetic rate and genetic response to moderate growth environments.

Keywords: Gene expression, growth, light intensity, Rubisco activity

African Journal of Biotechnology Vol. 12(20), pp. 2764-2769

Author Biographies

Keum-Ah Lee
Department of Ecology, Lincoln University, PO BOX 85084, Lincoln, Cantebury, 7647, New Zealand
Seong Han Lee
Department of Environmental Horticulture, University of Seoul, Seoul, 130-743, Republic of Korea
Su Young Woo
Department of Environmental Horticulture, University of Seoul, Seoul, 130-743, Republic of Korea
Published
2016-02-16
Section
Articles

Journal Identifiers


eISSN: 1684-5315