RELATIONSHIP BETWEEN RUBISCO AND PHOTOSYNTHETIC EFFICIENCY OF TISSUE CULTURED PLANTLETS

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KARAMZADEH S.

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Paper Information

Journal: Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research Year:2002 | Volume:- | Issue:10 Page(s): 1-13

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Title

RELATIONSHIP BETWEEN RUBISCO AND PHOTOSYNTHETIC EFFICIENCY OF TISSUE CULTURED PLANTLETS

Author(s)

KARAMZADEH S. | Issue Writer Certificate

Keywords

PHOTOSYNTHESISQ2

RUBISCOQ4

TISSUE CULTUREQ4

LIGHTQ4

WILD CHERRYQ4

Abstract

In vitro plants show an abnormality in growth and photosynthetic performance. In order to understand the role of the main photosynthetic enzyme (RuBisCO) in photosynthetic efficiency (Pm), and the factors affecting activity of this enzyme, an experiment was carried out. The plantlets of WILD CHERRY were examined for some physiological parameters, under three growth conditions (in vitro, and ex vitro after 2 and 4 weeks).The observations showed that under in vitro conditions Pm is too low compared to ex vitro conditions. Changes in Pm of different treatments were consistent with changes in RUBISCO activity. No significant difference was observed between leaf RUBISCO content in vitro and ex vitro. No changes in RUBISCO activity were observed under different growth irradiances (50 and 200 mmol photon m-2s-1) in in vitro condition, while under ex vitro conditions higher RUBISCO activity was observed under higher growth irradiance. Therefore, Pm of in vitro plantlets was affected by low activity of RUBISCO. As previously reported and the results of this study also support it, the low activity of this enzyme could be attributed to presence of sucrose in culture medium and to the low concentration of magnesium ions in leaf of in vitro plantlets.

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APA: Copy

KARAMZADEH, S.. (2002). RELATIONSHIP BETWEEN RUBISCO AND PHOTOSYNTHETIC EFFICIENCY OF TISSUE CULTURED PLANTLETS. IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH, -(10), 1-13. SID. https://sid.ir/paper/104546/en

Vancouver: Copy

KARAMZADEH S.. RELATIONSHIP BETWEEN RUBISCO AND PHOTOSYNTHETIC EFFICIENCY OF TISSUE CULTURED PLANTLETS. IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH[Internet]. 2002;-(10):1-13. Available from: https://sid.ir/paper/104546/en

IEEE: Copy

S. KARAMZADEH, “RELATIONSHIP BETWEEN RUBISCO AND PHOTOSYNTHETIC EFFICIENCY OF TISSUE CULTURED PLANTLETS,” IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH, vol. -, no. 10, pp. 1–13, 2002, [Online]. Available: https://sid.ir/paper/104546/en

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