NDLI: Adaptive photosynthetic strategies of the Mediterranean maquis species according to their origin

Content Provider	Springer Nature Link
Author	Gratani, L. Varone, L.
Copyright Year	2004
Abstract	In consideration of their origin the adaptive strategies of the evergreen species of the Mediterranean maquis were analysed. Rosmarinus officinalis L., Erica arborea L., and Erica multiflora L. had the lowest net photosynthetic rate (P$_{N}$) in the favourable period [7.8±0.6 μmol(CO$_{2}$) m$^{−2}$s$^{−1}$, mean value], the highest P$_{N}$ decrease (on an average 86 % of the maximum) but the highest recovery capacity (>70 % of the maximum) at the first rainfall in September. Cistus incanus L. and Arbutus unedo L. had the highest P$_{N}$ during the favourable period [15.5±5.2 μmol(CO$_{2}$) m$^{−2}$s$^{−1}$, mean value], 79 % decrease during drought, and a lower recovery capacity (on an average 54 %). Quercus ilex L., Phillyrea latifolia L., and Pistacia lentiscus L. had an intermediate P$_{N}$ in the favourable period [9.2±1.3 μmol(CO2) m$^{−2}$s$^{−1}$, mean value], a lower reduction during drought (on an average 63 %), and a range from 62 % (Q. ilex and P. latifolia) to 39 % (P. lentiscus) of recovery capacity. The Mediterranean species had higher decrease in P$_{N}$ and stomatal conductance during drought and a higher recovery capacity than the pre-Mediterranean species. Among the pre-Mediterranean species, P. latifoliahad the best adaptation to long drought periods also by its higher leaf mass per area (LMA) which lowered leaf temperature thus decreasing transpiration rate during drought. Moreover, its leaf longevity determined a more stable leaf biomass during the year. Among the Mediteranean species, R. officinalis was the best adapted species to short drought periods by its ability to rapidly recover. Nevertheless, R. officinalis had the lowest tolerance to high temperatures by its P$_{N}$ dropping below half its maximum value when leaf temperature was over 33.6°C. R. officinalismay be used as a bioindicator species of global change.
Starting Page	551
Ending Page	558
Page Count	8
File Format	PDF
ISSN	03003604
Journal	Photosynthetica
Volume Number	42
Issue Number	2
e-ISSN	15739058
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science

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