scholarly journals The Classification of Bambusa spp. from Celebes Based on the Micromorphological Characters of Leaf Epidermis

2017 ◽  
Vol 7 (3) ◽  
pp. 197-207 ◽  
Author(s):  
Alin Liana ◽  
Purnomo Purnomo ◽  
Issirep Sumardi ◽  
Budi Daryono
Keyword(s):  
Leaf Epidermis ◽  
Micromorphological Characters

Comparative leaf micromorphology of Drypetes and Putranjiva (Putranjivaceae) and its taxonomic significance

2020 ◽  
Author(s):  
Akeem B Kadiri ◽  
Alexandra N Muellner-Riehl
Keyword(s):  
Molecular Data ◽  
Leaf Epidermis ◽  
Infrageneric Classification ◽  
Leaf Micromorphology ◽  
Stomatal Complexes ◽  
Branching Patterns ◽  
Doubtful Species ◽  
Epidermal Features ◽  
Micromorphological Characters

Abstract Putranjivaceae are a pantropically distributed but poorly known glucosinulate-producing family of three genera (Drypetes, Putranjiva and Sibangea), previously included in Euphorbiaceae subfamily Phyllanthoideae. Characters of the leaf epidermis were previously suggested as being of infrafamilial taxonomic relevance, but epidermal features of the three genera have not so far been compared in the light of the phylogenetic relationships recovered by molecular data. Therefore, we compared the leaf micromorphology of 44 (out of c. 200) Drypetes spp. and two (out of three) Putranjiva spp. using light microscopy. Our findings revealed that there are more stomata types than previously reported in both genera. We also present a new record of stomatal complexes and epidermal cell characteristics. The cell wall ornamentation character on both surfaces of the epidermis is useful for distinguishing D. aframensis subsp. aframensis. Based on a combination of the studied characters, doubtful species of Drypetes and Putranjiva are recognizable as belonging to the two genera, and this will require taxonomic and nomenclatural adjustments. Other taxonomically useful characters are trichome distribution and types and leaf areole shape and tertiary veins branching patterns that appear to be relatively constant across the two genera. Oil droplets located within the cell lumen in Putranjiva differentiates it from Drypetes, where they inwardly streak the epidermal walls among other features. Thus, our study provides evidence that the investigated leaf micromorphological characters are useful for distinguishing the species of the two genera, and they corroborate the existing infrageneric classification of Drypetes that was based on exomorphology.

Taxonomic re-evaluation of some Gelidocalamus (Poaceae: Bambusoideae) taxa from Southeast China

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 111
Author(s):  
YUGUANG LIU ◽  
WEIJIAN LI ◽  
MING TANG ◽  
GUANGYAO YANG ◽  
WENGEN ZHANG
Keyword(s):  
Leaf Epidermis ◽  
Distribution Map ◽  
Sem Images ◽  
Southeast China ◽  
Taxonomic Treatment ◽  
Taxonomic Analysis ◽  
Woody Bamboos ◽  
Micromorphological Characters

In the present study, we employed a classical taxonomic analysis of micromorphological characters of the leaf epidermis to reassess the taxonomy of four Gelidocalamus taxa, a genus of woody bamboos endemic to China. We propose that G. subsolidus is distinct from G. tessellatus, and G. albopubescens should be placed in synonymy under G. subsolidus. A formal taxonomic treatment is presented, including description, comments, illustrations, a distribution map, and SEM images of the abaxial leaf epidermis.

scholarly journals Cell Pattern and Ultrasculpture of Bulb Tunics of Selected Allium Species (Amaryllidaceae) and their Diagnostic Value

2014 ◽  
Vol 56 (1) ◽  
pp. 28-41
Author(s):  
Kaja Rola
Keyword(s):  
Diagnostic Value ◽  
Specific Pattern ◽  
Species Determination ◽  
Allium Species ◽  
Cell Pattern ◽  
Cell Patterns ◽  
Micromorphological Characters ◽  
Species Descriptions ◽  
Potential Use

Abstract Cell pattern and ultrasculpture were examined by light and scanning electron microscopy in bulb tunics of 46 Allium species to determine the diagnostic value of micromorphological characters. The study examined the diversity of these characters, evaluated their usefulness at different taxonomic levels (species, section, subgenus), and considered the results in relation to the recent intrageneric classification of the genus. Detailed characteristics are provided for the investigated species, and taxa showing the presence of calcium oxalate crystals in bulb tunic cells are indicated. The results suggest that several bulb tunic characters are of taxonomic significance in Allium as their variation between specimens of the same species was negligible; they can be useful elements of species descriptions and determination keys. Allium subgenus Allium shows considerable variation of bulb tunic ultrasculpture and hexagonal or elongated cell patterns. Differences in ultrasculpture are sufficient to distinguish species within the Amerallium subgenus. Three subgenera (Anguinum, Butomissa, Reticulatobulbosa) are characterized by fibrous tunics with reticulate ultrasculpture. Rectangular to elliptic cells with thick walls, giving the bulb tunic an almost perforated structure, are characteristic for Allium subgenus Cepa. No specific pattern was found for Allium subgenus Melanocrommyum and Polyprason. The only representative of subgenus Microscordum (Allium monanthum) showed distinct herringbone ultrasculpture. The bulbs of Allium subgenus Rhizirideum representatives can be distinguished by their linear ultrasculpture following the long axis of the elongated cells. Allium bulb tunic ultrasculpture and cell pattern show some degree of variability. These characters are of potential use in taxonomic delimitation, species determination and further study of the relationships between species, particularly in members of subgenus Amerallium.

scholarly journals Prunus laurocerasus L. Türü Bazı Yaprak Mikromorfolojik Karakterlerinin Yetişme Ortamına Göre Değişimi

2018 ◽  
Vol 6 (11) ◽  
pp. 1517 ◽  
Author(s):  
Nurcan Yiğit ◽  
Mehmet Çetin ◽  
Hakan Şevik
Keyword(s):  
Confidence Level ◽  
Variance Analysis ◽  
Leaf Epidermis ◽  
Pore Width ◽  
Pore Length ◽  
Micromorphological Characters ◽  
Prunus Laurocerasus

In this study, it was aimed to identify the change in some micromorphological characters in Prunus laurocerasus L. leaves obtained from 6 different provinces located in the areas where different climate types are dominant, depending on their habitat. In this regard, the leaf samples were collected from Prunus laurocerasus L. individuals in the provinces of Rize, Samsun located in the areas including the European-Siberian, Irano-Turanian and Mediterranean phytogeographical regions. The leaf epidermis images were obtained with the help of SEM on the collected leaf samples, and the required measurement procedures were performed on these images with the help of “Image J” measurement program. By measurements performed on the leaf epidermis surface, Stoma Length (µm), Stoma Width (µm), Pore length (µm), Pore width (µm) and Stoma Density (in an area of 1 mm2) measured such as micromorphological characters. The data obtained were subjected to the Variance analysis and Duncan’s test, and the change in these characters depending on their habitat was statistically evaluated. At the end of the study, it was determined that there were statistically significant differences at the confidence level of minimum 95% among the conditions of the habitat in terms of all characters except for the stomatal width.

Classification of leaf epidermis microphotographs using texture features

2009 ◽  
Vol 4 (3) ◽  
pp. 177-181 ◽  
Author(s):  
Elio Ramos ◽  
Denny S. Fernández
Keyword(s):  
Texture Features ◽  
Leaf Epidermis

scholarly journals Leaf epidermal micromorphology in Aspidistra (Asparagaceae): diversity and taxonomic significance

PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 65-86
Author(s):  
Nikolay A. Vislobokov ◽  
Long-Fei Fu ◽  
Yi-Gang Wei ◽  
Maxim S. Nuraliev
Keyword(s):  
Electron Microscopy ◽  
Morphological Traits ◽  
Species Level ◽  
Leaf Epidermis ◽  
Taxonomic Significance ◽  
Abaxial Epidermis ◽  
Infraspecific Variation ◽  
Vegetative Characters ◽  
Micromorphological Characters ◽  
Scanning Electron

Micromorphological characters of leaf epidermis were investigated in 69 species of Aspidistra using scanning electron microscopy. Sculpture of epidermis varies from smooth to verrucose and rugose in the genus. The abaxial epidermis of some species bears papillae, whereas the adaxial surface uniformly lacks the papillae. Sculpture type of epidermis and density of papillae are generally found to be stable characters at a species level. The infraspecific variation of epidermis sculpture, where present, ranges from smooth to verrucose or from verrucose to rugose. Micromorphological characters of leaf epidermis are shown to have potential taxonomic significance in Aspidistra; in combination with the type of shoot structure, they allow to subdivide the species into 13 groups. The groups are largely incongruent with floral morphological traits. An identification key to the studied species of Aspidistra based on vegetative characters (gross leaf and shoot morphology and characters of leaf epidermis) is presented.

scholarly journals PHARMACOGNOSTIC STUDIES ON TALINUM PORTULACIFOLIUM (FORSSK.) ASCH. EX SCHWEINF.

2018 ◽  
Vol 11 (10) ◽  
pp. 470
Author(s):  
Hemalatha K ◽  
Abirami P
Keyword(s):  
Calcium Oxalate ◽  
Leaf Epidermis ◽  
Calcium Oxalate Crystals ◽  
Diagnostic Characters ◽  
Plant Parts ◽  
The Family ◽  
Parenchyma Cells ◽  
Micromorphological Characters ◽  
Powder Analysis ◽  
Standard Techniques

Objective: The present study was undertaken to establish the micromorphological characters of Talinum portulacifolium (Forssk.) Asch. ex Schweinf. belonging to the family Portulacaceae.Methods: The fresh plant parts were selected for micromorphological studies, and the air-dried plant powder was used for powder analysis as per the standard techniques [1-3].Results: Results revealed the presence of diagnostic characters like calcium oxalate crystals in the parenchyma cells of the leaf, which are druses with spiny surface that occurs in ordinary parenchyma cells. Stomata are paracytic which are present in both adaxial and abaxial surfaces of the leaf. The powder contains fragments of leaf epidermis, densely distributed stomata in laminar portions of the leaf.Conclusion: The present study provides the valuable information and also acts as pharmacognostical standards to standardize the study plant scientifically.

Seed Structure Characteristics of Orobanche cumana Populations

Helia ◽  
2015 ◽  
Vol 38 (62) ◽  
pp. 1-14 ◽  
Author(s):  
Anna Krupp ◽  
Erika Rücker ◽  
Annerose Heller ◽  
Otmar Spring
Keyword(s):  
Crop Production ◽  
Seed Structure ◽  
Seed Shape ◽  
Morphometric Measurements ◽  
Orobanche Cumana ◽  
Sunflower Broomrape ◽  
Width Measurements ◽  
Micromorphological Characters ◽  
Fast Adaptation

AbstractSunflower broomrape Orobanche cumana Wallr. is a rapidly growing threat to the oil crop production in many countries. Fast adaptation to new environments and increasing host resistance suggests that phenotypically distinctive populations of the weed may have evolved. The classification of the species and the differentiation of such populations on the base of seed micromorphological characters were attempted. Morphometric measurements allowed the distinction of O. cumana from several other Orobanche and Phelipanche species. An irregularly thickened cell wall of the anticlinal testa cells differentiated O. cumana and O. cernua from O. caryophyllacea, O. crenata, O. minor, P. aegyptiaca, P. arenaria and P. ramosa. However, populations of sunflower broomrape from five European countries and China could not be separated from each other on the base of micromorphological seed characters. In contrast, length to width measurements indicated that the Asian samples had a slightly different seed shape which was less elongated than the European samples. However, this seemingly geographic effect may as well be a consequence of sampling which comprised a higher rate of the so-called modern races E-H in the European samples.

scholarly journals Phylogeny of Ten Kenyan Plectranthus Species in the Coleus Clade Inferred from Leaf Micromorphology, Rbcl and MatK Genes

2017 ◽  
Vol 2017 ◽  
pp. 1-16
Author(s):  
Fredrick M. Musila ◽  
Catherine W. Lukhoba ◽  
Joseph M. Nguta ◽  
Saifuddin F. Dossaji
Keyword(s):  
Cluster Analysis ◽  
Molecular Data ◽  
Gene Sequences ◽  
Plant Identification ◽  
Clear Cut ◽  
Species Phylogeny ◽  
Phylogenetic Studies ◽  
Leaf Micromorphology ◽  
Micromorphological Characters

Plectranthus species are difficult to taxonomically delimit due to lack of clear-cut morphological synapomorphies. This study is aimed at bringing insights into classification of ten Plectranthus species in the Coleus clade by using leaf micromorphology and molecular data. Stomatal counts and observation of microtome leaf sections generated leaf micromorphology data, while molecular data was obtained from sequencing MatK and Rbcl genes from each species. Phylogeny based on the MatK and Rbcl gene sequences clustered four species P. caninus, P. otostegioides, P. barbatus, and P. lanuginosus together (Clusters A and D, respectively), while P. pseudomarrubioides, P. ornatus, and P. aegyptiacus were grouped together into Clusters B and E, respectively, and P. montanus and P. amboinicus were grouped together (Cluster C). A dendrogram was generated through a cluster analysis of the leaf micromorphological characters grouped together, P. caninus, P. ornatus, P. otostegioides, P. montanus, and P. pseudomarrubioides (Cluster F). The dendrogram also grouped together P. aegyptiacus, P. amboinicus, P. edulis, P. barbatus, and P. lanuginosus (Cluster G). The present study has grouped the ten studied Plectranthus species using molecular and leaf micromorphology characters into phylogenies, which are supported by previous studies, and proved that these characters can aid in plant identification and phylogenetic studies.

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