HAIR TYPES, POLLEN, AND SEED SURFACES OF SOLANUM MACROCARPON COMPLEX AND SOLANUM LINNAEANUM (SOLANACEAE)

1994 ◽  
Vol 42 (1) ◽  
pp. 41-50
Author(s):  
Z.R. Bukenya ◽  
J.F. Carasco
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Prolate Spheroidal ◽  
Seed Surface ◽  
Pollen Characters ◽  
Surface Patterns ◽  
Scanning Electron

Hair types, pollen, and seed surfaces of Solanum macrocarpon L. complex and Solanum linnaeanum Hepper ex Jaeger were studied using a light and scanning electron microscope. The different hair types occurring in the S. macrocarpon complex and S. linnaeanum can be used to differentiate the various groups in S. macrocarpon complex, and S. macrocarpon from S. linnaeanum. Pollen of S. macrocarpon complex was tricolporate, prolate spheroidal, and the surface ornamented. Pollen characters could not be used to differentiate groups belonging to S. macrocarpon complex. Seed surface patterns were found to be similar in S. macrocarpon complex and S. linnaeanum, and hence of little taxonomic value.

Pattern of the Seed Surface of Goodenia and Related Genera

1980 ◽  
Vol 28 (1) ◽  
pp. 123 ◽  
Author(s):  
RC Carolin
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Evolutionary Trends ◽  
Seed Surface ◽  
Taxonomic Description ◽  
Surface Patterns ◽  
Scanning Electron

The surface patterns of seeds of 88 species of Goodenia and related genera were examined under scanning electron microscope and light microscope. With use of sections as well, the patterns were resolved into six attributes of which each was present in one of at least two states. Certain combinations of states of attributes are used to define terms which are used for purposes of taxonomic description. Six such terms are defined in this way. The results indicate that previous taxonomic arrangements are unsatisfactory. A brief commentary on possible evolutionary trends is provided and the relationships of the various satellite genera to Goodenia are discussed.

scholarly journals Morphology, anatomy, palynology and achene micromorphology of Bellis L. (Asteraceae) species from Turkey

2020 ◽  
Vol 79 (1) ◽  
pp. 59-67
Author(s):  
Faruk Karahan
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Leaf Morphology ◽  
Morphological Characters ◽  
Medium Size ◽  
Prolate Spheroidal ◽  
Palynological Analysis ◽  
Oblate Spheroidal ◽  
Pollen Characters ◽  
Scanning Electron

In the present study, the morphological characters, root, stem and leaf anatomy, pollen and achene micromorphology of Bellis L. species (Bellis annua L., B. perennis L. and B. sylvestris Cirillo) distributed in Turkey have been investigated on light and scanning electron microscope. Palynological analysis showed that pollen characters were found as small to medium size, isopolar, radially symmetrical, oblate spheroidal and prolate spheroidal, tricolporate and echinate-perforate ornamentation in the three species. Achene characters were found dark brown to yellow in colour, often cylindrical, compressed, with thickened margin, obovate orobovoid shaped, pappus absent and the coat ornamentations are rectangular with short hairs on the surface. As a result of this study, leaf morphology and some pollen characteristics such as pollen size, shape, perforation and distance between spines were demonstrated to be different among the Bellis species.

scholarly journals Características palinológicas de las araliáceas de México

2017 ◽  
pp. 117 ◽  
Author(s):  
Victoria Sosa
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Pollen Grains ◽  
Point Of View ◽  
Generic Level ◽  
Dichotomous Key ◽  
Pollen Characters ◽  
Scanning Electron

This work studies 17 species of mexican Araliaceae from the palynological point of view belonging to the genera Aralia, Dendropanax, Didymopanax, Redera, Oreopanax y Sciadodendron . All the pollen descriptions are presented at the generic level. The grains were studied based in scanning electron microscope and light microscope. It includes a dichotomous key for the genera grains. The results showed few differences between the pollen grains of the genera although some exine characters are important. Redera and Didymopanax presented an exine semi-tectate and the rest of the genera had tectate-perforate grains. This paper compared also some pollen characters with morphological ones, finding pollen characters considered primitive correlated with characters of primitive Araliaceae groups .

scholarly journals Contribution to the systematic knowledge of endemic Aubrieta pinardii Boiss. (Brassicaceae) from Turkey

2020 ◽  
Vol 27 (1) ◽  
pp. 27-35
Author(s):  
Emrah Şirin ◽  
Mehmet Cengiz Karaismailoğlu
Keyword(s):  
Electron Microscope ◽  
Chromosome Number ◽  
Scanning Electron Microscope ◽  
Geographical Distribution ◽  
Anatomical Structures ◽  
Seed Surface ◽  
Cytological Data ◽  
Surface Ornamentation ◽  
Systematic Knowledge ◽  
Scanning Electron

The aim of this study was to document the taxonomical, morphological, anatomical, palynological and cytological characters, and geographical distribution of endemic Aubrieta pinardii Boiss. (Brassicaceae) from Turkey. The description of the taxon was revised as a consequence of comprehensive assessments of many specimens. The surface pictures belonging to seed and pollen of the taxon were obtained by Scanning Electron Microscope. The seed surface ornamentation was rugose. The pollen was radially and isopolar and prolate in forms, with polar axes of 19.52 ± 0.29 μm and equatorial axes of 13.04 ± 0.22 μm, with oval outlines in the equatorial axes, and elliptical in the polar axes. They were three–colpate and colpus sizes varied between 12.98 μm and 13.29 μm in length, and between 1.33 and 2.09 μm in width. Also, the anatomical structures of the root, stem and leaf of species were studied. In cytological studies, the chromosome number of species was found as 2n = 16 (x =8). This was the first work including taxonomical, morphological (macro and micro), anatomical and cytological data of endemic Aubrieta pinardii. Bangladesh J.Plant Taxon. 27(1): 27-35, 2020 (June)

Taxonomic studies in the genus Haplanthodes (Acanthaceae)

Phytotaxa ◽  
2021 ◽  
Vol 516 (3) ◽  
Author(s):  
PRADIP VIKRAM DESHMUKH ◽  
SIDDHARTHAN SURVESWARAN ◽  
RAMCHANDRA DNYANOBA GORE ◽  
MANOJ MADHWANAND LEKHAK
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Pollen Grains ◽  
Prolate Spheroidal ◽  
New Variety ◽  
Exine Ornamentation ◽  
Taxonomic Studies ◽  
First Time ◽  
Scanning Electron

The endemic Indian genus Haplanthodes (Acanthaceae) is revised. Four species, viz. H. neilgherryensis, H. plumosa, H. tentaculata and H. verticillata and a new variety, H. neilgherryensis var. toranganensis are recognized. Lectotype is designated for Haplanthodes, Haplanthus plumosus and H. verticillaris. The nomenclature of the Linnaean name Ruellia tentaculata is also discussed. Micromorphology of seed using light microscope (LM) and scanning electron microscope (SEM) is observed for the first time, and two types, reticulate and micro papillate, have been recognized based on surface sculpturing pattern. The genus differs from the related genera Andrographis and Haplanthus by distinctly two grooved seeds with hygroscopic hairs. Pollen grains of the genus are oblate or prolate spheroidal, distinctly triangular, trizonocolporate with reticulate exine ornamentation.

Circumscription of the genus Medicago (Leguminosae) by seed characters

1990 ◽  
Vol 68 (3) ◽  
pp. 613-629 ◽  
Author(s):  
Ernest Small ◽  
Brenda Brookes ◽  
Per Lassen
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
The Other ◽  
Wide Sense ◽  
Seed Surface ◽  
Light Line ◽  
Seed Characters ◽  
Close Relatives ◽  
Scanning Electron

Delimitation of Medicago from its close relatives in tribe Trifolieae subtribe Trigonellinae remains controversial. Scanning electron microscope studies of the seed surface of Medicago, Trigonella, and Melilotus showed consistent differences between Medicago and the other two genera. Smooth and rough seeds occur in all three genera, the rough seeds proving taxonomically useful. The roughness of Medicago seeds is due to rugose surface bumps (usually wrinkled, always with rounded sides), except in the monotypic section Orbiculares. The roughness of seeds of Trigonella, Melilotus, and Medicago section Orbiculares is due to tuberculate surface bumps. The structure of the Malpighian layer shows completely parallel taxonomic differences. The Malpighian cells are traversed by the light line, and the length of the portion of the cell above the light line (a) and that below the light line (b) distinguishes smooth, rugose, and tuberculate seeds. In smooth seeds (of Medicago, Melilotus, and Trigonella), a and b are constant. In rugose seeds (in Medicago only), a is constant while b is greater under the testa bumps, varying with the height of the portion of the bump occupied. In tuberculate seeds (in Medicago section Orbiculares, and in Trigonella and Melilotus), b is constant while a is greater under the testa bumps. These studies confirm the appropriateness of circumscribing Medicago in a wide sense, except for the inclusion of Medicago section Orbiculares.

scholarly journals Pollen morphology of Plantago species native to Poland and their taxonomic implications

2011 ◽  
Vol 73 (4) ◽  
pp. 315-325 ◽  
Author(s):  
Małgorzata Klimko ◽  
Krystyna Idzikowska ◽  
Mariola Truchan ◽  
Anna Kreft
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Pollen Morphology ◽  
Pore Diameter ◽  
Pollen Grains ◽  
Pollen Grain ◽  
Prolate Spheroidal ◽  
Taxonomic Implications ◽  
Scanning Electron

Pollen grains of 9 species of the genus <em>Plantago</em> (Plantaginaceae), including 8 taxa native to Poland, were observed under a light microscope and a scanning electron microscope. Descriptions of grain sculpture are illustrated only SEM micrographs. The studied pollen grains were medium-sized or small, spherical or prolate spheroidal. Their sculpture was always verrucate with granulation. In the studied taxa, internal apertures had the form of pores. Their number ranged from (4)5-9(14). The pores were scattered on the surface of pollen grains. Identification features of individual taxa include: presence or absence of an annulus around each pore, annulus structure, ornamentation of the pollen grain and operculum, type of aperture membrane, number of internal pores, and pore diameter. We suggest that two new pollen grain types, characteristic of <em>P. intermedia</em> and <em>P. arenaria</em>, should be distinguished, and that <em>P. alpina</em> should be assigned to the <em>P. coronopus</em> type.

scholarly journals Pollen morphological ultrastructure of Melastoma L. (Melastomataceae)

2020 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Lilis Suryani ◽  
Fitria Ramona
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Prolate Spheroidal ◽  
Oblate Spheroidal ◽  
Pollen Sample ◽  
Scanning Electron

Melastoma L. is a type genus of Melastomataceae. Melastoma malabthricum is the type with the widest area of spread compared with other species in the genus Melastoma. This research aim to study pollen morphological ultrastructure of Melastoma. Research carried out with collecting species which include to Melastoma with survey methode. Pollen morphological ultrastructure observation used Scanning Electron Microscope Type JSM-IT-200. Pollen sample obtained from the flowers collection where not yet anthesis. In Laboratory  polen was fixation, dehidration and coating then observed with electrone microscope to taken pollen photo and identification. Two species are prolate spheroidal that are M. malabathricum dan M. tebauchina. Four species are oblate spheroidal that are M. setigerum, M. baccarianum, M.minahasae dan M. malabathricum var. malabathricum. The results scanning electron microscope from six species Melastoma seen only have aperture like a gap called colpus with amount variation. Pollen ornamentation on six species Melastoma looks like striate type.

SEM and stereoscope microscope observations on the seeds of some Ornithogalum (Hyacinthaceae) species

Biologia ◽  
2008 ◽  
Vol 63 (5) ◽  
Author(s):  
Leszek Bednorz ◽  
Aneta Czarna
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Morphological Characters ◽  
Seed Morphology ◽  
Similar Species ◽  
Specific Level ◽  
Seed Surface ◽  
Taxonomic Criterion ◽  
Micromorphological Characters ◽  
Scanning Electron

AbstractThe paper presents the results of the study on seed morphology of four following Ornithogalum species: O. boucheanum Asch., O. nutans L., O. pyrenaicum L., and O. umbellatum L. Several macro-and micro-morphological characters were observed using stereoscope and scanning electron microscope. Differences were found especially in micromorphological characters of the seed surface, the shape of raphe and micropylar pole. These characters can be used as an additional taxonomic criterion at specific level for this genus. Only the seeds of O. boucheanum and O. nutans — two closely related and morphologically very similar species are practically undistinguished.

A palynological survey of the genus Iberis (Brassicaceae), known as candytufts, in Turkey

Phytotaxa ◽  
2019 ◽  
Vol 397 (3) ◽  
pp. 213 ◽  
Author(s):  
BURCU YILMAZ ÇITAK
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Light Microscope ◽  
Pollen Grains ◽  
Polar View ◽  
Prolate Spheroidal ◽  
Exine Ornamentation ◽  
First Time ◽  
Scanning Electron

The present study reports for the first time detailed palynological traits of the Turkish species Iberis. Both light microscope (LM) and scanning electron microscope (SEM) were used for the characterisation of the species. Radially symmetrical, isopolar, and tricolpate pollen grains were observed as common characters in all of the examined taxa. The pollen grains were prolate-spheroidal with polar axes ranging from 21.97 to 29.25 µm and equatorial axes ranging from 20.34 to 26.09 µm. Their polar shapes were subcircular to subtriangular. Two types of exine ornamentation were observed using a SEM. A numerical UPGMA analysis showed that the dimensions of polar axes, equatorial axes and outline in polar view (amb) were the most valuable variables for separating the Iberis species.

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