Comparative field study of Quercus ilex and Phillyrea latifolia: photosynthetic response to experimental drought conditions

2003 ◽  
Vol 50 (2) ◽  
pp. 137-148 ◽  
Author(s):  
Romà Ogaya ◽  
Josep Peñuelas
Keyword(s):  
Field Study ◽  
Quercus Ilex ◽  
Photosynthetic Response ◽  
Phillyrea Latifolia ◽  
Drought Conditions

Changes in terpene content and emission in potted Mediterranean woody plants under severe drought

1998 ◽  
Vol 76 (8) ◽  
pp. 1366-1373 ◽  
Author(s):  
J Llusià ◽  
J Peñuelas
Keyword(s):  
Woody Plants ◽  
Pinus Halepensis ◽  
Woody Species ◽  
Severe Drought ◽  
Pistacia Lentiscus ◽  
Emission Rates ◽  
Phillyrea Latifolia ◽  
Drought Conditions ◽  
Terpene Emission Rates ◽  
Phillyrea Angustifolia

Terpene concentration and emission were studied in potted plants of some of the most common Mediterranean woody species (Pinus halepensis L., Pistacia lentiscus L., Cistus albidus L., Cistus monspeliensis L., Quercus ilex L., Quercus coccifera L., Phillyrea latifolia L., Phillyrea angustifolia L., and Arbutus unedo L.) under irrigation and under severe drought conditions that dropped relative water content to a range between 40% in Q. ilex and 85% in Phillyrea latifolia after withholding watering for one dry summer week. Terpene concentrations were detected in Pinus halepensis, Pistacia lentiscus, C. albidus, and C. monspeliensis, and they increased after withholding watering except in C. albidus. Terpene emission was detected in all species except Phillyrea angustifolia and A. unedo. Pinus halepensis showed the highest diurnal terpene emission rates of 86 µg·g-1 dry wt.·h-1 followed by C. albidus, Pistacia lentiscus, Q. ilex, Q. coccifera, Phillyrea latifolia, and C. monspeliensis (4 µg·g-1 dry wt.·h-1). Emitted terpenes represented from 0.33% of C fixed in C. monspeliensis to 10% in C. albidus. All species severely decreased their terpene emission rates under severe drought conditions. Emission by terpene-storing species (e.g., Pinus halepensis) was more related to temperature than in nonstoring species (e.g., Q. ilex), which showed emission relationships with photosynthetic rates. The monoterpenes alpha-pinene, beta-pinene, beta-phellandrene, and limonene and the sesquiterpene caryophyllene were the most abundant terpenes stored and emitted by these Mediterranean plant species.Key words: drought, Mediterranean conditions, terpene concentration, terpene emission, woody plants.

scholarly journals Production and turnover of mycorrhizal soil mycelium relate to variation in drought conditions in Mediterranean Pinus pinaster , Pinus sylvestris and Quercus ilex forests

2020 ◽  
Author(s):  
Andreas Hagenbo ◽  
Yasmine Piñuela ◽  
Carles Castaño ◽  
Juan Martínez de Aragón ◽  
Sergio de‐Miguel ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Pinus Pinaster ◽  
Quercus Ilex ◽  
Drought Conditions ◽  
Soil Mycelium

scholarly journals Proteomics Data Analysis for the Identification of Proteins and Derived Proteotypic Peptides of Potential Use as Putative Drought Tolerance Markers for Quercus ilex

2021 ◽  
Vol 22 (6) ◽  
pp. 3191
Author(s):  
Bonoso San-Eufrasio ◽  
Ezequiel Darío Bigatton ◽  
Victor M. Guerrero-Sánchez ◽  
Palak Chaturvedi ◽  
Jesús V. Jorrín-Novo ◽  
...  
Keyword(s):  
Data Analysis ◽  
Drought Tolerance ◽  
Quercus Ilex ◽  
Holm Oak ◽  
Proteomics Data ◽  
Redox Stress ◽  
Climate Conditions ◽  
Primary And Secondary Metabolism ◽  
Drought Conditions ◽  
Causes Of Mortality

Drought is one of the main causes of mortality in holm oak (Quercus ilex) seedlings used in reforestation programs. Although this species shows high adaptability to the extreme climate conditions prevailing in Southern Spain, its intrinsic genetic variability may play a role in the differential response of some populations and individuals. The aim of this work was to identify proteins and derived proteotypic peptides potentially useful as putative markers for drought tolerance in holm oak by using a targeted post-acquisition proteomics approach. For this purpose, we used a set of proteins identified by shotgun (LC-MSMS) analysis in a drought experiment on Q. ilex seedlings from four different provenances (viz. the Andalusian provinces Granada, Huelva, Cadiz and Seville). A double strategy involving the quantification of proteins and target peptides by shotgun analysis and post-acquisition data analysis based on proteotypic peptides was used. To this end, an initial list of proteotypic peptides from proteins highly represented under drought conditions was compiled that was used in combination with the raw files from the shotgun experiment to quantify the relative abundance of the fragment’s ion peaks with the software Skyline. The most abundant peptides under drought conditions in at least two populations were selected as putative markers of drought tolerance. A total of 30 proteins and 46 derived peptides belonging to the redox, stress-related, synthesis,-folding and degradation, and primary and secondary metabolism functional groups were thus identified. Two proteins (viz., subtilisin and chaperone GrpE protein) were found at increased levels in three populations, which make them especially interesting for validation drought tolerance markers in subsequent experiments.

Effect of drought on diameter increment of Quercus ilex, Phillyrea latifolia, and Arbutus unedo in a holm oak forest of NE Spain

2003 ◽  
Vol 180 (1-3) ◽  
pp. 175-184 ◽  
Author(s):  
Romà Ogaya ◽  
Josep Peñuelas ◽  
Jordi Martı́nez-Vilalta ◽  
Marta Mangirón
Keyword(s):  
Quercus Ilex ◽  
Holm Oak ◽  
Oak Forest ◽  
Arbutus Unedo ◽  
Diameter Increment ◽  
Phillyrea Latifolia ◽  
Ne Spain
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