Physiological and molecular alterations in plants exposed to high [CO2] under phosphorus stress.

Biotechnology Advances
Renu PandeyIvan A Janssens

Abstract

Atmospheric [CO2] has increased substantially in recent decades and will continue to do so, whereas the availability of phosphorus (P) is limited and unlikely to increase in the future. P is a non-renewable resource, and it is essential to every form of life. P is a key plant nutrient controlling the responsiveness of photosynthesis to [CO2]. Increases in [CO2] typically results in increased biomass through stimulation of net photosynthesis, and hence enhance the demand for P uptake. However, most soils contain low concentrations of available P. Therefore, low P is one of the major growth-limiting factors for plants in many agricultural and natural ecosystems. The adaptive responses of plants to [CO2] and P availability encompass alterations at morphological, physiological, biochemical and molecular levels. In general low P reduces growth, whereas high [CO2] enhances it particularly in C3 plants. Photosynthetic capacity is often enhanced under high [CO2] with sufficient P supply through modulation of enzyme activities involved in carbon fixation such as ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). However, high [CO2] with low P availability results in enhanced dry matter partitioning towards roots. Alterations in ...Continue Reading

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Citations

Aug 1, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ismail HamadSamy Selim
May 21, 2016·Frontiers in Plant Science·Hamada AbdElgawadHan Asard
Sep 23, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Di WangZisheng Luo
Dec 29, 2020·Plant, Cell & Environment·Fran LauriksKathy Steppe
Oct 30, 2020·Frontiers in Plant Science·Raphael TizianiStefano Cesco
Nov 23, 2018·The Science of the Total Environment·Jian JinCaixian Tang
Jun 10, 2017·Ecotoxicology and Environmental Safety·Seham M HamedHamada AbdElgawad

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