Using greenhouses to simulate climate change scenarios and applications in studies of photosynthesis and water relations

Libro: Current research in plant physiology. FV2015 Book of abstracts. Toledo, June 14-17, 2015
Autores: Morales, F.; Pascual Elizalde, Inmaculada; Sánchez Díaz, Manuel; Aguirreolea Morales, Jone; Irigoyen Iparrea, Juan José; Goicoechea Preboste, María Nieves; Antolín Bellver, María del Carmen; Oyarzun, M.; Urdiain, A.
Editorial: Academia
Localidad: Toledo
ISBN: 978-84-606-8883-9
Página inicial-final: 210 - 211
Fecha de publicación: 2015
Resumen: Human activities are increasing atmospheric CO2 concentration and temperature. Related to this global warming, periods of low water availability are also expected to increase. Thus, CO2 concentration, temperature and water availability are three of the main factors related to climate change that potentially may influence crops and ecosystems. In this communication, we describe the use of growth chamber greenhouses (GCG) (a new concept of greenhouse for plant research) and temperature gradient greenhouses (TGG) (an improved version of the temperature gradient tunnel) to simulate climate change scenarios and to investigate possible plant responses (Morales et al., 2014). In the GCG, CO2 concentration, temperature and water availability are set to act simultaneously, enabling comparison of a current situation with a future one. Other characteristics of the GCG are a relative large space of work, fine control of the relative humidity, plant fertirrigation and the possibility of light supplementation, within the photosynthetic active radiation (PAR) region and/or with ultraviolet-B (UV-B) light. In the TGG, the three above-mentioned factors can act independently or in interaction, enabling more mechanistic studies aimed to elucidate the limiting factor(s) responsible for a given plant esponse. Examples of experiments, including some aimed to study photosynthetic acclimation, a phenomenon that leads to decreased photosynthetic capacity under long-term exposures to elevated CO2