Anatomical changes and evolutionary trends in the foliar epidermis of extant and fossil Euro-Mediterranean oaks (Fagaceae)

Uzunova, Katya; Palamarev, Emanuel; Ehrendorfer, Friedrich

doi:10.1007/bf00989202

Cited by 30 publications

(31 citation statements)

References 17 publications

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“…Cuticle characteristics were identified using keys and descriptions (Wilkinson, 1979;Penas et al, 1994;Westerkamp and Demmelmeyer, 1997;Uzunova et al, 1997). The leaf samples were then identified at the species level according to their cuticle and morphological characteristics (Castroviejo et al, 1986(Castroviejo et al, -2004, and by comparing them with present-day material.…”

Section: Methodsmentioning

confidence: 99%

Taxonomic composition of the Holocene forests of the northern coast of Spain, as determined from their macroremains

et al. 2008

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Eight sites distributed over a distance of some 400 km of the Cantabrian coast (northern Spain) provided 153 wood, 50 fruit and over 350 leaf remains belonging to the area's Holocene forests. The high taxonomic precision with which these macroremains were identified (in many cases at the species level), plus the accurate information available regarding the original growth locations of these plants, provide new geobotanical insights into the history of northern Spain's Atlantic forests. Radiocarbon dating of the wood samples showed the collected material to have lived between 8550 and 800 cal. BP. Analysis of the macroremains showed the deciduous mixed forests of the Holocene to contain a majority of Quercus robur and Corylus avellana, accompanied by Acer pseudoplatanus, Ulmus minor, Castanea sp., and hygro-fhermophilous taxa (Arbutus, Laurus and Vitis vinifera). The remains of hygrophilous communities, dominated by Salix atrocinerea, Alnus glutinosa and Fraxinus sp., show these to have expanded during the Holocene. The absence of conifer macroremains is interpreted as reflecting the disappearance of Wurmian conifer populations at the beginning of the Holocene. The different taxa (eg, Ilex spp. and V. vinifera) that survived the last glaciation in the refugia offered by Spain's northern coast persisted in the same areas during the Holocene. A leaf sample of Ulmus minor dating to 3950 ± 120 cal. BP reveals for the first time the natural occurrence of this species on the northern coast of Spain.

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Section: Methodsmentioning

confidence: 99%

Taxonomic composition of the Holocene forests of the northern coast of Spain, as determined from their macroremains

et al. 2008

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“…These works established a terminology of leaf epidermal features of Fagaceae. Subsequently, the leaf epidermal features of a large number of oaks from Europe and Asia have been reported, especially from the Mediterranean region (Llamas et al, 1995;Zhou, Wilkinson & Wu, 1995;Bussotti & Grossoni, 1997;Uzunova, Palamarev & Ehrendorfer, 1997;Luo & Zhou, 2001;Karioti et al, 2011;Panahi et al, 2012), Tschan & Denk, 2012). All these studies form a solid foundation for comparative analysis of the leaf epidermal features of this large genus.…”

Section: Introductionmentioning

confidence: 99%

The taxonomic implication of leaf micromorphological characteristics in the genus Aruncus (Rosaceae)

Oak¹,

Song²,

Hong³

2018

Korean J. Pl. Taxon

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Leaf epidermal features are important taxonomic features in Quercus. We studied leaf epidermal features of 91 species and one forma of Quercus subgenus Cyclobalanopsis using light and scanning electron microscopy. Trichome terminology in oaks was assessed and clarified, aiming to score the epidermal features accurately for genus-wide comparison. Nine trichome types, anomocytic and cyclocytic stomatal apparatus, smooth layer and platelet epicuticular wax flakes, and two trichome base types were found in subgenus Cyclobalanopsis. The epidermal features revealed three main groups in subgenus Cyclobalanopsis. The epidermal features of Quercus s.l. were uniform, supporting recognition of Cyclobalanopsis as a subgenus of Quercus rather than as a separate genus. Most leaf epidermal features show a mosaic pattern, although their numerous variations offered valuable resources for species identification. The leaf epidermal features that can be used for identification of Quercus leaves are also discussed and summarized.

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“…The analysis of epidermal structures has proved to be of some help in taxonomy of oaks and provided a valuable set of analytical characters for species delimitation (THAMSON and MOHLENBROCK 1979, BA^I] 1981, SAFOU and SAINT-MARTIN 1989, MANOS 1993, PÉNAS MERINO et al 1994, LLAMAS et al 1995, UZUNOVA et al 1997, FORTINI et al 2009). …”

Section: Introductionmentioning

confidence: 99%

“…Different characteristics of stomata such as density, dimension, location, subsidiary cell, guard cells and rim have been used for delimitation of oak species by some investigators (UZUNOVA and PALAMAREV 1993, BUSSOTTI and GROSSONI 1997, UZUNOVA et al 1997, LOU and ZHOU 2001.…”

Section: Introductionmentioning

confidence: 99%

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Foliar epidermis morphology in Quercus (subgenus Quercus, section Quercus) in Iran

Panahi

Jamzad

Pourmajidian

et al. 2012

Acta Botanica Croatica

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-The foliar morphology of trichomes, epicuticular waxes and stomata in Quercus cedrorum, Q. infectoria subsp. boissieri, Q. komarovii, Q. longipes, Q. macranthera, Q. petraea subsp. iberica and Q. robur subsp. pedunculiflora were studied by scanning electron microscopy. The trichomes are mainly present on abaxial leaf surface in most species, but rarely they appear on adaxial surface. Five trichome types are identified as simple uniseriate, bulbous, solitary, fasciculate and stellate. The stomata of all studied species are of the anomocytic type, raised on the epidermis. The stomata rim may or may not be covered with epicuticular. The epicuticular waxes are mostly of the crystalloid type but smooth layer wax is observed in Q. robur subsp. pedunculiflora. Statistical analysis revealed foliar micromorphological features as been diagnostic characters in Quercus.

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Anatomical changes and evolutionary trends in the foliar epidermis of extant and fossil Euro-Mediterranean oaks (Fagaceae)

Cited by 30 publications

References 17 publications

Taxonomic composition of the Holocene forests of the northern coast of Spain, as determined from their macroremains

Taxonomic composition of the Holocene forests of the northern coast of Spain, as determined from their macroremains

The taxonomic implication of leaf micromorphological characteristics in the genus Aruncus (Rosaceae)

Foliar epidermis morphology in Quercus (subgenus Quercus, section Quercus) in Iran

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