RT Journal Article
T1 Molecular response to water stress in two contrasting Mediterranean pines (Pinus pinaster and Pinus pinea)
A1 Perdiguero Jiménez, Pedro
A1 Barbero, María del Carmen
A1 Cervera, María Teresa
A1 Collada, Carmen
A1 Soto, Álvaro
AB Adaptation to water stress has determined the evolution and diversification of vascular plants. Water stress is forecasted to increase drastically in the next decades in certain regions, such as in the Mediterranean basin. Consequently, a proper knowledge of the response and adaptations to drought stress is essential for the correct management of plant genetic resources. However, most of the advances in the understanding of the molecular response to water stress have been attained in angiosperms, and are not always applicable to gymnosperms. In this work we analyse the transcriptional response of two emblematic Mediterranean pines, Pinus pinaster and Pinus pinea, which show noticeable differences in their performance under water stress. Using microarray analysis, up to 113 genes have been detected as significantly induced by drought in both species. Reliability of expression patterns has been confirmed by RT-PCR. While induced genes with similar profiles in both species can be considered as general candidate genes for the study of drought response in conifers, genes with diverging expression patterns can underpin the differences displayed by these species under water stress. Most promising candidate genes for drought stress response include genes related to carbohydrate metabolism, such as glycosyltransferases or galactosidases, sugar transporters, dehydrins and transcription factors. Additionally, differences in the molecular response to drought and polyethylene-glycol-induced water stress are also discussed.
PB Elsevier
SN 0981-9428
YR 2013
FD 2013
LK https://hdl.handle.net/20.500.14352/96756
UL https://hdl.handle.net/20.500.14352/96756
LA eng
NO Perdiguero, Pedro, et al. «Molecular Response to Water Stress in Two Contrasting Mediterranean Pines (Pinus Pinaster and Pinus Pinea)». Plant Physiology and Biochemistry, vol. 67, junio de 2013, pp. 199-208. https://doi.org/10.1016/j.plaphy.2013.03.008.
NO AcknowledgementsThe authors would like to thank Dr. Gloria García-Casado for her valuable help with microarray analysis, as well as Dr. Luis Gil and Dr. Santiago Gonzalez-Martinez for technical support. This work has been funded through the projects AGL2006-03242/FOR (Spanish Ministry of Education and Science), CCG07-UPM/AMB-1932 and CCG10-UPM/AMB-5038 (Madrid Regional Government – UPM). P.P. has a pre-doctoral fellowship from the Spanish Ministry of Education and Science.
NO Ministerio de Educación y Ciencia (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 18 abr 2025