The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA BIOLOGIA - Issue no. 1 / 2022  
         
  Article:   LEAF HETEROBLASTY AND MORPHOTYPES OF ACER MONSPESSULANUM (DJURDJURA, ALGERIA) AS REVEALED BY TRADITIONAL AND GEOMETRIC MORPHOMETRICS.

Authors:  ZAKIA CHIKHAOUI, SAMIR AIT SAID, BARTOLOMEO SCHIRONE, AREZKI DERRIDJ, FAZIA KROUCHI.
 
       
         
  Abstract:  
DOI: 10.24193/subbbiol.2022.1.08

Article history: Received: 31 March 2022; Revised: 27 April 2022;
Accepted: 9 June 2022; Available online: 30 June 2022.
©2022 Studia UBB Biologia. Published by Babeş-Bolyai University.
pp. 143-163

VIEW PDF

FULL PDF

The genus Acer which is largely distributed in the Northern hemisphere is represented in Algeria by four species of which Acer monspessulanum is the most common. These four species and their putative hybrids are coexisting in many parts of their Algerian distribution range but their leaf morphology has not been the subject of quantitative analyses despite the interest of such kind of data in taxon delineation particularly in the case of interspecific hybridization. The present work is the first step towards a quantitative analysis of leaf morphology in Acer species in Algeria. We presently relied on traditional and geometric morphometrics methods in the study of Acer monspessulanum subsp. monspessulanum leaf morphology in two sites of the Djurdjura Mountain with consideration of tree and within-shoot effects. The results showed congruence between the two methods which both highlighted the presence of a marked heteroblasty. Basal leaves are twice as large as apical ones for all measured leaf features. The petiole is longer than the blade in basal leaves and inversely in apical ones. The median leaves have intermediate values. The results revealed also the coexistence of two contrasted leaf morphotypes on distinct trees of both sites.

Keywords: Acer monspessulanum, Djurdjura, heteroblasty, leaf, morphotypes.
 
         
     
         
         
      Back to previous page