Influence of marine salts on the localization and accumulation of surfactant in the needles of Pinus halepensis Mill

Richard, Béatrice; Grieu, Ph.; Badot, Pierre‐Marie; Garrec, Jean-Pierre

doi:10.1051/forest:19960501

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…More recently, much lower values have been recorded (0.96-1.30 mg l À1 ; Nicolotti et al, 2001), due to the higher biodegradability of detergents and the lower consumption of poorly biodegradable organic ingredients (PBO), whose use was reduced in Italy by about 39% by 1996(EC Commission, 2004. Surfactants cause the deterioration of epistomatal wax structure (Bussotti et al, 1997) and reduce the surface tension of water, so favouring the needle uptake of NaCl (Richard et al, 1996;Nicolotti et al, 2005). On the Tyrrhenian coast, sea spray-exposed P. pinea needles showed 3-12 times higher chloride ion content compared to the opposite part of the crown, as well as more negative midday water potentials (Nicolotti et al, 2001, with higher water stress at increasing doses of surfactant concentrations in sprayed water .…”

Section: Discussionmentioning

confidence: 95%

The impact of sea erosion on coastal Pinus pinea stands: A diachronic analysis combining tree-rings and ecological markers

Raddi

Cherubini²,

Lauteri³

et al. 2009

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 95%

The impact of sea erosion on coastal Pinus pinea stands: A diachronic analysis combining tree-rings and ecological markers

Raddi

Cherubini²,

Lauteri³

et al. 2009

Forest Ecology and Management

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“…Conductivity over 20,000 μscm -1 has been observed in the rain water in some areas of the interior of the island [19]. Negative effects of sea spray on vegetation have been extensively analyzed [20][21][22][23]. Meteorological conditions are particular to this specific area of the island, with much lower rainfall than other south-facing areas of the island at the same altitude [11].…”

Section: Discussionmentioning

confidence: 99%

Treatments on the Survival of Pinus canariensis Chr. Sm. Ex DC in Buch Planted Seedlings in Arid Zones (Herbivore Protectors-Fertilizers-Mulch-Hydrogels)

Arévalo¹

2009

TOFSCIJ

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Long periods of deforestation in the southern part of Tenerife Island have led to a point-of-no-return for recovery of vegetation, which requires human intervention. Good plantation techniques could help regenerate woody plants. A study was designed to provide information about the best plantation techniques for Pinus canariensis in the southern part of Tenerife, at the old pine forest location (precipitation <250mm and 12ºC mean annual temperature). Two study sites were selected (Fasnia and Arico); in each site two plots of 5 ha were established. In total, 4 plots were located and in each plot, 32 subplots of 16 x 16 m were marked out. In each subplot, 16 Pinus canariensis seedlings (1 year old) were planted and subjected to different combinations of fertilizers, chemical herbivore preventers, mechanical herbivore preventers (using stone castle, hay protectors and plastic protectors), hydrogels and mulch, giving a total of 32 subplot combinations. I monitored the rate of pine seedling survival over three years. The results indicated that fertilization had a negative effect on survivorship of the pine seedlings. Stone castle protectors and hydrogels were also negatively associated with seedling survival. By contrast, plastic protectors showed the highest efficiency in aiding seedling survivorship, and they also represent the quickest option in terms of how long it takes to employ the device. Given the soil and weather conditions of the study area, I would not recommend fertilization or hydrogels. Plastic protectors are recommended as herbivore protection, because they are easy to set up and offer better results.

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“…De nombreux auteurs ont décrit une modification de la structure des cires cuticulaires sous l'action des tensioactifs de type LAS chez les végétaux ligneux [21,22,27]. De même une dégradation par des LAS marqués [ 35 S] des cires épicuticulaires sur les aiguilles de Pinus halepensis a été trouvée 2 fois supérieure en solution d'eau de mer comparativement à celle obtenue en solution d'eau distillée [16,32]. D'autres résultats ont montré l'agrégation des microtubules de cires de la chambre épistomatique [2,7,23], et indiqué que les tensioactifs seuls provoquent une remarquable exfoliation de la couche cireuse épicuticulaire [19] avec alors l'apparition sur des aiguilles de Pinus pinaster traitées avec NaCl et des tensioactifs, de lésions semblables à celles de plantes naturellement exposées à l'aérosol marin pollué.…”

Section: Discussion Et Conclusionunclassified

Effets des embruns marins pollu�s sur les feuilles d?Acacia cyanophylla Lindl. et d?Eucalyptus gomphocephala Dc. du littoral tunisien

et al. 2004

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Résumé -Un dépérissement de la végétation côtière du Cap Bon en Tunisie est observable depuis ces deux dernières décennies. En de nombreux points de la côte, les peuplements d'Acacia cyanophylla Lindl. et d'Eucalyptus gomphocephala Dc. sont touchés. Les feuilles des arbres dépérissants présentent une réduction marquée de leur teneur relative en eau par rapport à celle des feuilles saines, avec des altérations de leur surface au niveau des cires épicuticulaires. Ces dépérissements sont liés à la présence récente dans les embruns marins de plusieurs polluants comme des tensioactifs anioniques. Les résultats d'expériences en laboratoire confirment l'hypothèse que lorsque les embruns marins contiennent des tensioactifs et des hydrocarbures, ils ont alors un impact très important sur les feuilles avec en particulier une altération de la cuticule. En effet les ions Na + ,Cl -et les polluants présents dans les embruns peuvent alors franchir largement la barrière cuticulaire et exercer leurs effets néfastes sur les tissus foliaires. dépérissement forestier / embruns marins pollués / alkylebenzène sulfonates linéaire / cire cuticulaire Abstract -Effects of polluted sea-spray on leaves of Acacia cyanophylla Lindl. and Eucalyptus gomphocephala Dc. in Tunisian coast. A deterioration of the coastal vegetation of the Cape Bon in Tunisia has been observable for these two last decades. In many points of the coast, the peuplement of Acacia cyanophylla Lindl. and Eucalyptus gomphocephala Dc. are touched. The sheets of the damaged trees present a marked reduction of their relative content water compared to that of the healthy sheets, with deterioration of their surface on the epicuticular waxes. These deterioration are related to the recent presence in the marine spray of several pollutants like anionic surfactants. The experiences results in laboratory confirm hypothesis that when the sea-spray contains the surfactant and hydrocarbons, they then have a very significant impact on the sheets with in particular a deterioration of the cuticle. Indeed Na + and Cl -ions and the pollutants present in the spray can then largely cross the cuticular barrier and exert their deleterious effects on leaf tissues. forest decline / polluted sea-spray / linear alkylbenzene sulfonates / cuticular wax

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Influence of marine salts on the localization and accumulation of surfactant in the needles of Pinus halepensis Mill

Abstract: Summary -To simulate the conditions of polluted sea sprays during storms, trees were exposed to a short pollution episode. Two-year-old pines (Pinus halepensis Mill) were

Cited by 6 publications

References 21 publications

The impact of sea erosion on coastal Pinus pinea stands: A diachronic analysis combining tree-rings and ecological markers

The impact of sea erosion on coastal Pinus pinea stands: A diachronic analysis combining tree-rings and ecological markers

Treatments on the Survival of Pinus canariensis Chr. Sm. Ex DC in Buch Planted Seedlings in Arid Zones (Herbivore Protectors-Fertilizers-Mulch-Hydrogels)

Effets des embruns marins pollu�s sur les feuilles d?Acacia cyanophylla Lindl. et d?Eucalyptus gomphocephala Dc. du littoral tunisien

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