Nutlet and leaf micromorphology in some Turkish species of Teucrium L. (Lamiaceae)

Ecevit-Genç, Gülay; Özcan, Taner; Dırmencı, Tuncay

doi:10.11646/phytotaxa.312.1.5

Cited by 10 publications

(10 citation statements)

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“…Heywood (1971) proposed the significance and efficiency of SEM in answering taxonomic difficulties. Many researchers have reported that nutlet microstructures are useful characters in discriminating the taxa within the family Lamiaceae (Jamzad et al, 2000;Moon and Hong, 2006;Kaya and Dirmenci, 2008;Salmaki et al, 2008;Kahraman et al, 2011;Eshratifar et al, 2011;Satıl et al, 2012;Ecevit-Genç et al, 2017;Khosroshahi and Salmaki, 2018). In this study, nutlet surface micromorphological patterns displayed a wide range of variation and had diagnostic value for species recognition.…”

Section: Discussionmentioning

confidence: 99%

Nutlet structures of subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and their systematic applications

Karaismailoğlu¹,

Güner²

2019

Turk J Bot

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This paper includes the morphological and anatomical characters of the nutlets of 7 endemic species of the subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and the systematic significance of these characteristics, using one-way analysis of variance and cluster and principal component analyses. Morphological characters such as the dimensions, shapes, colors, and surfaces of the nutlets were studied using light and scanning electron microscopes. The structures and thicknesses of the pericarp and endosperm layers, as well as the sizes of the cotyledon in the nutlets, were anatomically studied. The outcomes revealed that the taxa vary from each other in terms of nutlet shape and color. The nutlet dimensions range from 1.31 mm to 3.49 mm in length and from 0.84 mm to 1.95 mm in width. While Stachys longiflora and S. pseudopinardii have the largest nutlets, S. chasmosericea has the smallest. The nutlet surface ornamentation was recorded as 5 types: reticulate, scalariform, reticulate-foveate, ruminate, and rugose. The most common type is reticulate; however, the other ornamentation types are specific for the studied taxa. Anatomically, the structure and thickness of the pericarp parts and the endosperm and the size of the cotyledon are very important characteristics that disclose interspecific relations within the studied taxa. A key is presented for the identification of the examined taxa based on the nutlet properties.

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Section: Discussionmentioning

confidence: 99%

Nutlet structures of subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and their systematic applications

Karaismailoğlu¹,

Güner²

2019

Turk J Bot

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“…Nutlet morphology in Lamiaceae has emerged as a vital source of systematics information in taxonomy (Moon et al 2009a, Ryding 2010a, Satil et al 2012, Krawczyk and Głowacka 2015, Ecevit-Genç et al 2017, Amirmohammadi et al 2019). Because surface sculpturing of the nutlets tends to be less affected by environmental pressures than other morphological characteristics, such as leaf micromorphology (Moon et al 2009b), floral micromorphology (Jang et al 2014) and crystal types in calyces (Ryding 2010b), nutlet micromorphological characters enable taxa to be distinguished or affinities discovered (Moon et al 2009a, Krawczyk and Głowacka 2015, Ecevit-Genç et al 2017. A number of Lamiaceae species have been studied extensively in terms of nutlet surface sculpturing, and in combination with phylogeny at the tribe level (Budantsev andLobova 1997, Moon et al 2009a).…”

Section: Yun-chang Jeon Tae-soo Jang and Suk-pyo Hongmentioning

confidence: 99%

Nutlet morphology in the tribe Elsholtzieae (Lamiaceae)

Jeon

Jang

Hong

2020

Nordic Journal of Botany

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A comprehensive study on nutlet morphology on 46 taxa from the tribe Elsholtzieae was conducted using stereomicroscopy, light microscopy and scanning electron microscopy. The objectives were to evaluate the nutlet characteristics in a systematics context and to provide additional evidence for taxon delimitation. The nutlet shape varied from elliptical, widely elliptical, spheroidal and ovate to pyriform. The size ranged from 0.50 to 2.70 mm in length and 0.34 to 2.65 mm in width. The three types of trichomes included simple non‐glandular trichomes (Collinsonia punctata), clavate non‐glandular trichomes (Elsholtzia cephalantha) and peltate glandular trichomes (Mosla grosseserrata and M. chinensis). We also report the presence of a mucilaginous reaction in nine species of the genus Elsholtzia in Elsholtzieae for the first time. Four types (undulate, papillae‐like projection, thorn‐like pattern and reticulate) and three subtypes (reticulate, reticulate‐cellular and supra‐reticulate) of nutlet surface patterns in the mid‐ventral region were recognized in Elsholtzieae based on the differences in cell outline, outer periclinal walls and dentations of the anticlinal walls. These nutlet micromorphological results may serve as a reference for future hypotheses on the classification of the tribe Elsholtzieae.

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“…Teucrium ’s cosmopolitan distribution is mainly concentrated in Europe, North Africa and in the temperate parts of Asia (Ecevit-Genç et al 2015, 2017). Teucrium is a large and polymorphic genus which is represented by 49 taxa (36 species) in Turkey.…”

Section: Introductionmentioning

confidence: 99%

“…Especially, leaf anatomy is important for the classification of the genus (Dinç et al 2009). Also, absence or presence of trichomes and their types on the nutlets and vegetative parts are very important for classifying the species (Dinç et al 2011a, Ecevit-Genç et al 2015, 2017). …”

Section: Introductionmentioning

confidence: 99%

“…However, the anatomy of T. pestalozzae , T. brevifolium and T. alyssifolium has not been investigated. In our previous studies, we investigated the nutlet and leaf micromorphology of some species belonging to the sect. Teucrium in Turkey (Ecevit-Genç et al 2015, 2017). In the present study, we report on the anatomical features of the leaves and stems of T. alyssifolium , T. brevifolium and T. pestalozzae .…”

Section: Introductionmentioning

confidence: 99%

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Comparative anatomical studies of some Teucrium sect. Teucrium species: Teucrium alyssifolium Stapf, Teucrium brevifolium Schreb. and Teucrium pestalozzae Boiss. (Lamiaceae)

Ecevit-Genç¹,

Büyükkılıç-Altınbaşak²,

Özcan³

et al. 2018

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Teucrium alyssifolium Stapf (endemic), Teucrium pestalozzae Boiss. (endemic) and Teucrium brevifolium Schreb. are three closely related taxa in Teucrium sect. Teucrium. The obtained data from the anatomical studies revealed that these three taxa represent the general anatomical characteristics of the Lamiaceae family. Leaves, anatomical features such as thick cuticle, abundant trichomes, rich palisade parenchyma layer in the mesophyll provide evidence that these three species are xeromorphic structures. Leaf and stem anatomy showed that the taxa have generally similar anatomical features. However, cuticle layers, epidermis cells size, indumentum density, mesophyll types, palisade parenchyma occupied in the mesophyll, presence of spherocrystals in leaves and parenchyma, collenchyma and sclerenchyma layers in stems show differences amongst the taxa. Anatomical characters of leaf and stem of these taxa are examined for the first time in this study.

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Nutlet and leaf micromorphology in some Turkish species of Teucrium L. (Lamiaceae)

Cited by 10 publications

References 1 publication

Nutlet structures of subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and their systematic applications

Nutlet structures of subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and their systematic applications

Nutlet morphology in the tribe Elsholtzieae (Lamiaceae)

Comparative anatomical studies of some Teucrium sect. Teucrium species: Teucrium alyssifolium Stapf, Teucrium brevifolium Schreb. and Teucrium pestalozzae Boiss. (Lamiaceae)

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