Comparative Anatomical Characteristics of the Subgenus Cyanus (Mill.) Hayek (Asteraceae) In Turkey

The identification of species based on anatomical characters is valuable to investigate their taxonomic status, phylogeny and understand their autoecology. The current study analysed the stem and leaf properties of 20 species of the subgenus Cyanus (Mill.) Hayek in Turkey. The Cyanus species exhibited xeromorphic anatomical features, such as tight palisade parenchyma and induced spongy parenchyma, which indicated adaptations to the arid soil and a forest ecosystem in which they occurred, as well as to high light intensity and precipitation. Anatomical features such as the midrib shape and number of vascularization patterns differed among the species. Similar anatomical characters were analysed for the investigated species. These properties can provide an important database for future studies including the phylogeny within the subgenus Cyanus. Bangladesh J. Plant Taxon. 28(2): 295-309, 2021 (December)

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Anatomical and micromorphological studies on Teucrium sect. Isotriodon (Lamiaceae) in Turkey with a taxonomic note

Biologia ◽

10.2478/s11756-012-0049-2 ◽

2012 ◽

Vol 67 (4) ◽

Cited By ~ 7

Author(s):

Muhittin Dinç ◽

Süleyman Doğu

Keyword(s):

The Other ◽

Isolated Population ◽

Leaf Epidermis ◽

Palisade Parenchyma ◽

Vegetative Organs ◽

Anatomical Studies ◽

Anatomical Features ◽

Anomocytic Stomata ◽

Anatomical Characters ◽

Trichome Types

AbstractIn this study, the anatomical features of the leaf and stem, besides the nutlet characteristics of some Teucrium sect. Isotriodon (Lamiaceae) taxa in Turkey, T. montbretii Betham subsp. montbretii, T. montbretii subsp. pamphylicum P. H. Davis, T. odontites Boiss. & Bal., T. cavernarum P. H. Davis, T. antitauricum T. Ekim, along with an isolated population of T. montbretii (T. montbretii subsp.) were investigated. The anatomical studies revealed that the taxa share generally similar anatomical characters, such as thicker upper leaf cuticles and larger upper leaf epidermal cells compared to lower ones and diacytic to anomocytic stomata on the leaves. However, the portion of the mesophyll occupied by palisade parenchyma and the occurrence of mucilage cells in leaf epidermis shows difference among the taxa. Furthermore, the studied taxa have general stem characteristics of the Lamiaceae family, except for having poorly developed collenchyma at the corners. With the amphistomatic leaves and developed sclerenchymatic tissue in the leaf median vein, T. cavernarum is seperated from the other taxa. Trichome types on the vegetative organs and nutlet shape and sculpturing are generally the same or similar in the studied taxa, but trichomes on the nutlets are different among them. Based on nutlet characteristics and some morphological ones, it was revealed that the isolated population of T. montbretii represent a new subspecies, T. monbretii subsp. yildirimlii M.Dinç & S.Doğu subsp. nov.

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Micromorphological and anatomical features of four species of Elytrigia Desv. (Poaceae)

Bangladesh Journal of Plant Taxonomy ◽

10.3329/bjpt.v20i2.17388 ◽

2013 ◽

Vol 20 (2) ◽

pp. 135-144 ◽

Cited By ~ 1

Author(s):

Lin Meng ◽

Peichun Mao

Keyword(s):

Transverse Section ◽

Interspecific Variation ◽

Vascular Bundles ◽

Anatomical Features ◽

Bulliform Cells ◽

Plant Taxon ◽

Anatomical Characters ◽

Subsidiary Cells ◽

Micromorphological Characters ◽

Scanning Electron

The micromorphological and anatomical characters of Elytrigia caespitosa (K.Koch) Nevski , E. intermedia (Host) Nevski × E. elongata (Host) Nevski, E. intermedia(Host) Nevski and E. repens (L.) Desv. ex Nevski have been studied using Scanning Electron Microscope (SEM) to determine interspecific variation. The results show that the root transverse section consists of epidermis, cortex and stele. Two rings of vascular bundles and a central pith cavity appear in stem morphology. The leaves of E. caespitosa have either single or twin, horse shoe-shaped short cells born along the costal zone of the upper epidermis, which lack prickle hairs and contain spherical or oblique-shaped papillae. In E. intermedia, the parallel subsidiary cells are distributed on the upper epidermis, and there are no short cells in the leaves. Dome-shaped subsidiary cells appear on the upper epidermis of E. intermedia × E. elongata and E. repens, but E. intermedia × E. elongata showes spot-shaped papillae, and its bulliform cells sank into the hinge cells. E. repens has no papillae, and its bulliform cells are not sunken into the mesophyll. Therefore, the differences in micromorphological characters on the upper epidermis of the leaf could be useful in classifying and determining phylogenetic relationships among the species.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17388Bangladesh J. Plant Taxon. 20(2): 135-144, 2013

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Indicadores Anatômicos Foliares Como Estratégias de Defesa Contra Elevada Incidência Luminosa (Anatomical Leaves Indicators as Defense Strategies Against High Luminosity)

Revista Brasileira de Geografia Física ◽

10.26848/rbgf.v4i2.232733 ◽

2012 ◽

Vol 4 (2) ◽

pp. 349 ◽

Cited By ~ 1

Author(s):

Vanessa Bastos Simões da Costa ◽

Gabriela Macêdo Aretakis de Almeida ◽

Maria das Graças Santos das Chagas ◽

Rejane Magalhães de Mendonça Pimentel

Keyword(s):

Solar Radiation ◽

Light Intensity ◽

High Light Intensity ◽

High Light ◽

Defense Strategies ◽

Anatomical Features ◽

High Solar Radiation ◽

Caatinga Vegetation ◽

High Incidence ◽

Anatomía Foliar

Em ambientes sob elevada incidência de radiação solar, como a caatinga e a restinga, os vegetais buscam minimizar os efeitos danosos de condições estressantes, como a elevada intensidade luminosa, através de ajustes morfoanatômicos nas folhas. Este estudo busca compreender os caracteres morfoanatômicos que podem constituir estratégias de defesa ao excesso de luz incidente na superfície foliar de espécies estabelecidas em locais com elevada intensidade luminosa. Foram selecionadas duas áreas, uma com vegetação de caatinga e uma com vegetação de restinga, no Estado de Pernambuco. Em cada bioma, foram selecionadas quatro espécies entre as dominantes, sendo coletadas folhas para confecção de lâminas histológicas semipermanentes seguindo metodologia usual em anatomia vegetal. Na lâmina foliar foram analisadas a área foliar total, a espessura, o comprimento e a largura foliar. Foi obtida a medida da espessura da cutícula, epiderme, definido o grau de sinuosidade das paredes anticlinais, o tipo, a densidade e o índice de estômatos e tricomas. Também foi mensurada a espessura dos parênquimas paliçádico e esponjoso no mesofilo. Espécies de caatinga e restinga apresentam grupos de caracteres morfoanatômicos de adaptação às condições de elevadas incidência luminosa e conseqüente elevada temperatura. Isto permite a permanência dessas plantas em ambientes sob estas condições. A identificação de similaridade de caracteres funcionais em folhas de espécies estabelecidas na caatinga e na restinga sugere o desenvolvimento de caracteres em resposta às condições ambientais.Palavras - chave: Radiação solar, Anatomia foliar, Restinga, Caatinga. Anatomical Leaves Indicators as Defense Strategies Against High Light Incidence ABSTRACTIn environments under high solar radiation, such as caatinga and restinga, the plant minimize the harmful effects of stressful conditions, such as high light intensity, through morphological and anatomical adjustments in the leaves. This study aims to understand the morphological and anatomical features that may constitute defense strategies to excess light incident on the leaf surface species established in sites with high light intensity. We selected two areas, one with caatinga vegetation and restinga in the Pernambuco State. We selected four dominant species in each biome and collected leaves for preparation of histological slides semipermanent following the usual methodology in plant anatomy. In the leaf lamina were analyzed the total leaf area, thickness, length and leaf width. The thickness of the cuticle, epidermis, the degree of sinuosity of anticlinal walls, the type, density and stomatal index and trichomes were defined. The thickness of the palisade and spongy mesophyll were measured. Species of caatinga and restinga show groups of morphological and anatomical features of adaptation to high incidence of light and consequent elevated temperature. This allows the maintenance of these plants in environments under these conditions. The identification of functional similarity of characters in leaves established in the caatinga and restinga suggests the development of characters in response to environmental conditions. Keywords: Solar radiation, Leaf anatomy, Caatinga, Restinga

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

PhytoKeys ◽

10.3897/phytokeys.96.24498 ◽

2018 ◽

Vol 96 ◽

pp. 63-77 ◽

Cited By ~ 1

Author(s):

Gülay Ecevit Genç ◽

Betül Büyükkılıç Altınbaşak ◽

Taner Özcan ◽

Tuncay Dirmenci

Keyword(s):

Palisade Parenchyma ◽

Stem Anatomy ◽

Anatomical Studies ◽

Anatomical Features ◽

Anatomical Characteristics ◽

Anatomical Characters ◽

First Time

Teucriumalyssifolium Stapf (endemic), Teucriumpestalozzae Boiss. (endemic) and Teucriumbrevifolium Schreb. are three closely related taxa in Teucriumsect.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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Leaf anatomy of the genus Passerina (Thymelaeaceae): taxonomic and ecological significance

Bothalia ◽

10.4102/abc.v31i1.507 ◽

2001 ◽

Vol 31 (1) ◽

pp. 53-70 ◽

Cited By ~ 5

Author(s):

C. L. Bredenkamp ◽

A. E. Van Wyk

Keyword(s):

Species Recognition ◽

Anatomical Variation ◽

Anatomical Study ◽

Cape Floristic Region ◽

Vascular Bundles ◽

Palisade Parenchyma ◽

Cuticular Membrane ◽

Anatomical Features ◽

Structural Types ◽

Anatomical Characters

A comparative anatomical study was made of the genus Passerina comprising 20 species and four subspecies, most of which are endemic to southern Africa. It showed that anatomical variation is useful in species recognition and classification. Anatomical characters typical of Thymelaeaceae and displayed in Passerina include isobilateral leaves, a papillate cuticular membrane, mucilaginous epidermal cell walls, a parenchymatous bundle sheath and extraxylary sclerenchyma fibres. Vascular bundles of the leaf lack intraxylary phloem. Characters common to Passerina are inverse-dorsiventral and epis- tomatic leaves, inverted palisade parenchyma and an abaxial hvpodermal sclerenchymatous sheath. Orientation of the main vascular bundle in relation to the epidermis and mesophyll allows the recognition of four leaf structural types and ten states, according to which all species can be characterized and grouped. Functionally many anatomical features of the leaf in Passerina are interpreted as adaptations to the Mediterranean climate of the Cape Floristic Region, where most species occur.

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Morphoanatomy of three Indigofera species (Leguminosae-Papilionoideae) in Java, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d211162 ◽

2020 ◽

Vol 21 (11) ◽

Author(s):

Henta Fugarasti ◽

Muzzazinah MUZZAZINAH ◽

Murni Ramli

Keyword(s):

Secondary Xylem ◽

Optical Microscope ◽

Vascular Bundles ◽

Secondary Phloem ◽

Palisade Parenchyma ◽

Anatomical Studies ◽

Anatomical Features ◽

Cambium Activity ◽

Xylem Elements ◽

Anatomical Characters

Abstract. Fugarasti H, Muzzazinah, Ramli M. 2020. Morphoanatomy of three Indigofera species (Leguminosae-Papilionoideae) in Java Indonesia. Biodiversitas 21: 5531-5538. This study aimed to explore the morphological and detailed anatomical features of the stems, leaves, and roots from three Indonesian Indigofera species. Morphological-anatomical studies of three Indonesian Indigofera species were carried out using embedded microscopic preparations. The anatomical characters of the specimens were observed using a compound optical microscope with magnification 40x, 100x, and 400x. The observation showed the anatomical cross-section of I. tinctoria stem was rectangular, I. suffruticosa was hexagonal, and I. arrecta was rounded. The tissue structures of Indigofera species, from the outside layer, were the epidermis, thin cortex, secondary phloem (narrow or wide), thick secondary xylem, and conspicuous pith in the middle. Whilst, the corner of I. suffruticosa stem contained thick collenchyma. The vascular bundles were the open collateral. The leaves of Indigofera species are made up of the upper epidermis, mesophyll (palisade parenchyma, spongy parenchyma), and the lower epidermis. The vascular bundles were located in the middle, with five or six segments of the xylem elements and small groups of phloem elements, all in the parallel lines. The primary stele type of the roots is actinostele, cambium activity pushed him aside. The vascular bundle of the roots consisted of a dense and tight secondary xylem composed of thick-walled circular vessels (mostly tightly arranged). Data about the morphoanatomy structure of three Indonesian Indigofera species could complement the novelty of the morpho-anatomy information records obtained by previous researchers.

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