Journal of Stress Physiology & Biochemistry, Vol. 11 No. 4 2015, pp. 58-67 ISSN 1997-0838
Original Text Copyright (cc) 2015 by  Garnik, Deeva, Belkov, Tarasenko and Konstantinov



ORIGINAL ARTICLE
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Effects of Light Intensity on Development and Chlorophyll Content in the Arabidopsis Mutant Plants with Defects in Photosynthesis

E.Yu. Garnik1*, D.V. Deeva2, V.I. Belkov1, V.I. Tarasenko1, Yu.M. Konstantinov1,2

 1 Siberian Institute of Plant Physiology and Biochemistry, SB RAS, Irkutsk, Russia
2  Irkutsk State University, Irkutsk, Russia

*E-Mail: elga74@yandex.ru

Received November 25, 2015

The developmental stages and adaptability to different light intensity (150 µmol*m-2*s-1 and 100 µmol*m-2*s-1) in Arabidopsis mutant lines with defects of photosynthetic apparatus were analyzed. Plant development in the mutant lines depended on the light intensity to varying degrees. Lines ch1-1 (lack of the chlorophyllide a oxygenase) and rtn16 (decreased chlorophyll a and b amounts) were the most susceptible to the light decrease. No one of the investigated lines demonstrated chlorophyll a/b rate alteration under the different light conditions. The depleted chlorophyll content has had the major effect on the mutant plants development under the different light conditions. The different chlorophyll a/b rate correlated with the different adaptability of mutant plants to low light.

Key words:    Arabidopsis thaliana, chlorophyll а, chlorophyll b, plant development, flowering index

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