2009
DOI: 10.1007/s00468-009-0355-7
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Contribution of diffusional and non-diffusional limitations to midday depression of photosynthesis in Arbutus unedo L.

Abstract: It is still unknown whether the midday depression of photosynthesis under severe water stress, frequently observed in plants growing in a Mediterranean-type climate, is primarily a consequence of diffusional or non-diffusional limitations. We carried out combined measurements of gas exchanges and chlorophyll fluorescence in field-grown Arbutus unedo L. trees during late spring and mid summer, and a quantitative limitation analysis was performed to distinguish between the different limitations to photosynthesis… Show more

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Cited by 27 publications
(38 citation statements)
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References 74 publications
(109 reference statements)
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“…6C). This seasonal variation of GP, TER and NEE is similar to that observed in other Mediterranean ecosystems (Xu & Baldocchi 2004, Allard et al 2008 where productivity rates are higher in spring followed by a strong summer reduction connected both to the stomatal and non-stomatal limitation to the photosynthesis (Galmés et al 2007, Grassi et al 2009) and to the drought semi-deciduous habitus of Cistus species (Werner et al 1999, De Dato et al 2013.…”
Section: Co 2 Flux Measurements In a Mediterranean Garriguesupporting
confidence: 85%
“…6C). This seasonal variation of GP, TER and NEE is similar to that observed in other Mediterranean ecosystems (Xu & Baldocchi 2004, Allard et al 2008 where productivity rates are higher in spring followed by a strong summer reduction connected both to the stomatal and non-stomatal limitation to the photosynthesis (Galmés et al 2007, Grassi et al 2009) and to the drought semi-deciduous habitus of Cistus species (Werner et al 1999, De Dato et al 2013.…”
Section: Co 2 Flux Measurements In a Mediterranean Garriguesupporting
confidence: 85%
“…or maximum rate of electronic transport, J max ) might differ between well-watered and water-stressed plants (Flexas et al, 2006;Grassi et al, 2009). For an accurate estimation of V cmax and J max , we need to account for the mesophyll conductance of CO 2 .…”
Section: Aranda Et Al / Forest Systems (2012) 21(3) 405-417 406mentioning
confidence: 99%
“…Taking into account the absolute limitations to photosynthesis, it is clear that the main reduction was due to diffusional resistances, mainly through the stomata, accounting for over 50% of the photosynthetic decrease. Under moderate water stress, stomatal limitation of photosynthesis is thought to be the main restriction on carbon uptake (Lawlor andCornic, 2002, Medrano et al, 2002;Grassi and Magnani, 2005;Díaz-Espejo et al, 2007;Grassi et al, 2009). …”
Section: Diffusional Limitations To Photosynthesis Under Moderate Watmentioning
confidence: 99%
“…However, a high hydrophobicity at the underside of leaves may play a significant role in sustaining photosynthesis during the rainy season, which coincides with the flowering and fruiting period of these species, keeping the gas exchange of the hypostomatic leaves unimpeded (Lange, Tenhunen, and Beyschlag 1985;Harley, Tenhunen, and Lange 1986;Raschke and Resemann 1986;Vitale and Manes 2005;Holder 2007b;Grassi et al 2009); also, a hydrophobic adaxial leaf surface minimizes cuticular transpiration during the dry season.…”
Section: Discussionmentioning
confidence: 99%