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https://doi.org/10.2478/v10184-012-0001-0

Changes of photosynthesis and carbon metabolism in Typha angustifolia L grown in conditions of nitrate nitrogen overload

Vladimir I Chikov ; Kazan Institute of Biochemistry and Biophysics, Russian Academy of Sciences, Lobachevskii st. 2/31, 420111 Kazan, Russia
Elvira V Isaeva ; Kazan Institute of Biochemistry and Biophysics, Russian Academy of Sciences, Lobachevskii st. 2/31, 420111 Kazan, Russia
Anna A Ratushnyak ; State Budgetary Establishment Research Institute for Problems of Ecology and Mineral Wealth Use, Tatarstan Academy of Sciences, Daurskaya 28, 420089 Kazan, Russia
Oleg Yu Tarasov ; State Budgetary Establishment Research Institute for Problems of Ecology and Mineral Wealth Use, Tatarstan Academy of Sciences, Daurskaya 28, 420089 Kazan, Russia
Maxim V Trushin ; Kazan (Volga Region) Federal University, Faculty of Biology and Soil Sciences, Kremlyovskaya 18, 420008 Kazan, Russia

Sažetak

Nitrates may induce alterations in NO-signaling system and change photosynthesisin plants. Significant reduction of 14CO2 fixation was noted at concentration of 3.96mM NaNO3 in an aquatic macrophyte (Typha angustifolia L.). Assimilation of 14CO2 seven days after the introduction of nitrates did not differ between control and experimental samples. There were changes in distribution of 14C among products of 4CO2 fixation 4 h after NaNO3 addition, resulting in increased sugar radioactivity in experimental plants. It was suggested that the observed changes may have regulatory importance.

Ključne riječi

aquatic macrophyte; carbon metabolism; nitrate; photosynthesis

Hrčak ID:

87480

URI

https://hrcak.srce.hr/87480

Datum izdavanja:

1.10.2012.

Posjeta: 1.408 *