Photosynthetica

, Volume 44, Issue 2, pp 161–168

Long-time variations in leaf mass and area of Mediterranean evergreen broad-leaf and narrow-leaf maquis species

  • L. Gratani
  • L. Varone
Article

DOI: 10.1007/s11099-006-0001-1

Cite this article as:
Gratani, L. & Varone, L. Photosynthetica (2006) 44: 161. doi:10.1007/s11099-006-0001-1

Abstract

Morphological (dry mass, DM; surface area, LA; leaf mass per area, LMA), anatomical (leaf thickness, L), phenological (leaf life span, LL), and physiological (net photosynthetic rate, PN) leaf traits of the evergreen species co-occurring in the Mediterranean maquis developing at Castelporziano (Rome) were tested. The correlation analysis indicated that LMA variation was tightly associated with LL variations: Cistus incanus and Arbutus unedo had a short LL (4±1, summer leaves, and 11±1 months, respectively) and low LMA (153±19 g m−2) values, Quercus ilex, Phillyrea latifolia, and Pistacia lentiscus high LMA (204±7 g m−2) and long LL (22±3 months), Erica arborea, Erica multiflora, and Rosmarinus officinalis a short LL (9±2 months) and an either high (213±29 g m−2, R. officinalis and E. multiflora) or low (115±17 g m−2, E. arborea) LMA. LMA values were significantly (p≤0.05) correlated with PN (r≥0.68). In the tested species, LMA increased in response to the decrease of the total rainfall during the leaf expansion period. LMA variation was due to the unequal variation of DM and LA in the considered species. LMA is thus a good indicator of evergreen maquis species capability to respond to climate change, in particular to total rainfall decrease in the Mediterranean basin.

Additional key words

dry mass Erica leaf life span leaf mass per area Phillyrea Pistacia Quercus rainfall Rosmarinus 

Abbreviations

DM

leaf dry mass

L

leaf thickness

LA

leaf area

LL

leaf life span

LMA

leaf mass per area

PN

net photosynthetic rate

PAR

photosynthetically active radiation

RLE

total rainfall during the leaf expansion period

Rtot

total yearly rainfall

Tmax

mean maximum air temperature during the period of leaf expansion

Tmin

mean minimum air temperature during the period of leaf expansion

Copyright information

© Institute of Experimental Botany, ASCR 2006

Authors and Affiliations

  • L. Gratani
    • 1
  • L. Varone
    • 1
  1. 1.Department of Plant BiologyUniversity “La Sapienza”RomeItaly

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