Ozone and water deficit reduced growth of Aleppo pine seedlings

Thiec, Didier Le; Manninen, Sirkku

doi:10.1016/s0981-9428(02)00009-8

Cited by 34 publications

(22 citation statements)

References 33 publications

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“…Similar biomass reductions have been observed previously in Aleppo pine (Pelloux et al 2001;Le Thiec and Manninen 2003;Karlsson et al 2004) when exposed to similar or higher AOT40 values of 60,000 ppb·h for 6 months. The effects of ozone on plant growth have been associated with decreased carbon assimilation and the increased metabolic costs that affect the amount of carbon available for allocation.…”

Section: Discussionsupporting

confidence: 88%

“…The alteration of the internal translocation of mineral nutrients in trees by ozone has been associated elsewhere with the repair or compensation processes imposed by premature senescence (Chappelka and Chevone 1992) and has been found to vary in accordance with environmental conditions and species. Ozone exposure studies have shown negative, positive, and no change in foliar, stem, and shoot macronutrient contents (Baker et al 1994;Elvira et al 1995;Samuelson and Kelly 1996;Utriainen andHolopainen 2001, Kytöviita et al 2001;Le Thiec and Manninen 2003;Ribas et al 2005).…”

Section: Introductionmentioning

confidence: 99%

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Carbon Isotope Composition, Macronutrient Concentrations, and Carboxylating Enzymes in Relation to the Growth of Pinus halepensis Mill. When Subject to Ozone Stress

Inclán¹,

Gimeno²,

Peñuelas³

et al. 2010

Water Air Soil Pollut

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Carbon Isotope Composition, Macronutrient Concentrations, and Carboxylating Enzymes in Relation to the Growth of Pinus halepensis Mill. When Subject to Ozone Stress

Inclán¹,

Gimeno²,

Peñuelas³

et al. 2010

Water Air Soil Pollut

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show abstract

“…Changes in plant productivity due to changes in gas exchange, especially net photosynthetic rate (P N ), have received much attention (Thiec and Manninen 2003). Although many studies proved that gas exchange decreased under drought stress (Li 2000, Zhang et al 2004, daily or longer time gas exchange rate measurements provide a better estimate of photosynthetic productivity than a single instantaneous measurement (Christy andPorter 1982, Peterson andZelitch 1982) because they account for changes in photosynthetic production occurring as a result of genotypic and environmental factors (Wells et al 1986, Nogués et al 2001.…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic responses of Populus przewalski subjected to drought stress

2006

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Cuttings of P. przewalski were exposed to two different watering regimes which were watered to 100 and 25 % of field capacity (WW and WS, respectively). Drought stress not only significantly decreased net photosynthetic rate (P N ), transpiration rate (E), stomatal conductance (g s ), efficiency of photosystem 2 (PS2) (F v /F m and yield), and increased intrinsic water use efficiency (WUE i ) under controlled optimal conditions, but also altered the diurnal changes of gas exchange, chlorophyll fluorescence, and WUE i . On the other hand, WS also affected the P N -photosynthetically active radiation (PAR) response curve. Under drought stress, P N peak appeared earlier (at about 10:30 of local time) than under WW condition (at about 12:30). At midday, there was a depression in P N for WS plants, but not for WW plants, and it could be caused by the whole microclimate, especially high temperature, low relative humidity, and high PAR. There were stomatal and non-stomatal limitations to photosynthesis. Stomatal limitation dominated in the morning, and low P N at midday was caused by both stomatal and non-stomatal limitations, whereas non-stomatal limitation dominated in the afternoon. In addition, drought stress also increased compensation irradiance and dark respiration rate, and decreased saturation irradiance and maximum net photosynthetic rate. Thus drought stress decreased plant assimilation and increased dissimilation through affected gas exchange, the diurnal pattern of gas exchange, and photosynthesis-PAR response curve, thereby reducing plant growth and productivity.

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“…This woody and perennial pine tree, cultivated in the Mediterranean area is useful for reforestation (Le Thiec and Manninen, 2003). Pinus halepensis species belonging to the Pinaceae family and is the most widely distributed pine in this region.…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition and Lipid Fraction Characteristics of Aleppo Pine (Pinus halepensis Mill.) Seeds Cultivated in Tunisia

Cheikh-Rouhou

Hentati

Besbes

et al. 2006

Food sci. technol. int.

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The proximale composition of Aleppo pine (Pinus halepensis Mill.) seeds cultivated in Bizerta (Tunisia) were investigated for their fatty acid composition, and their thermal and physical properties of lipid fraction. The proximate analysis of pine seeds showed the following composition (on a dry-weight basis): protein 22.7%, oil 43.3%. ash 8.3% and total carbohydrate 25.7%. Potassium. magnesium and calcium were the predominant mineraI elements present in the seeds and reached, together, about 1%. Oleic and linoleic acids were the major unsaturated fatty acids (27.3 and 48.8%, respectively), while the main saturated one was palmitic acid (8.75%). Myristic. rnyristoleic. palmitoleic, margaric, margaroleic, stearic, linolenic, arachidic, eicosenoic, eicosadienoic eicosatrienoic behenic and lignoceric acids were also detected. Thermal profile of Pinus halepensis Mill. seed oil, determined by its DSC melting curve, showed that the en tire liquefaction of the Aleppo pine seed oil occurs at -8°C. CieLab colour parameters (L", a*. b*). oxidative stability by Rancimat test and viscosity were also determined. Physicochernical properties of the oil include: saponification nurnber J 90, peroxide value 3.18. iodine index 1J 7, and a low acidity of 0.61 %. Results suggested that the production of oil from Pinus halepensis seeds could provide a potential use in food, pharmaceutical, cosmetics and other non-food industries.

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Ozone and water deficit reduced growth of Aleppo pine seedlings

Cited by 34 publications

References 33 publications

Carbon Isotope Composition, Macronutrient Concentrations, and Carboxylating Enzymes in Relation to the Growth of Pinus halepensis Mill. When Subject to Ozone Stress

Carbon Isotope Composition, Macronutrient Concentrations, and Carboxylating Enzymes in Relation to the Growth of Pinus halepensis Mill. When Subject to Ozone Stress

Photosynthetic responses of Populus przewalski subjected to drought stress

Chemical Composition and Lipid Fraction Characteristics of Aleppo Pine (Pinus halepensis Mill.) Seeds Cultivated in Tunisia

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