scholarly journals Pollen morphology and variability of species from the genus Rubus L. (Rosaceae) alien and invasive in Poland

Webbia ◽  
2021 ◽  
Vol 76 (1) ◽  
pp. 109-121
Author(s):  
Kacper Lechowicz ◽  
Jan Bocianowski ◽  
Dorota Wrońska-Pilarek
Keyword(s):  
Alien Species ◽  
Pollen Morphology ◽  
Pollen Viability ◽  
Intraspecific Variability ◽  
Pollen Grains ◽  
Polar Axis ◽  
Exine Ornamentation ◽  
The Family ◽  
Rubus Species

Rubus L. is one of the most species-rich and most taxonomically challenging genera in the family Rosaceae. The aim of this study was to investigate pollen morphology and the ranges of inter- and intraspecific variability of the studied Rubus alien species, as well as verify the taxonomic usefulness of these traits in distinguishing studied taxa from this genus. We analysed six quantitative pollen characteristics and the following qualitative ones: exine ornamentation, pollen outline and shape. The study was conducted on 24 samples of six alien Rubus species found in Poland. 720 pollen grains were measured in total. The most important pollen features included exine ornamentation and length of the polar axis (P). In the conducted studies there were no features of pollen indicating “invasiveness”. The results of our research fill the gap in knowledge on pollen structure in Rubus species alien to Poland and Europe. They may constitute a foundation for further research on the reproduction of these species (e.g. pollen viability and fertility), thus facilitating identification of features determining their expansive character.

scholarly journals Pollen characters as taxonomic evidence in some species of Dipsacaceae from Iran

2017 ◽  
Vol 24 (2) ◽  
pp. 129-136 ◽  
Author(s):  
Ebadi-Nahari Mostafa ◽  
Nikzat-Siahkolaee Sedigheh ◽  
Eftekharian Rosa
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Pollen Grain ◽  
Pollen Type ◽  
Upgma Tree ◽  
Pollen Characters ◽  
Exine Ornamentation ◽  
The Family ◽  
The World ◽  
Plant Taxon

Pollen morphology of nine species representing four genera: Cephalaria Schrad, Dipsacus L., Pterocephalus Vaill. and Scabiosa L. of the family Dipsacaceae in Iran has been investigated by means of scanning electron microscopy (SEM). The results showed that pollen grains were triporate and tricolpate. The pollen type of Scabiosa rotata Bieb. (tri- and tetraporate) is the first report in the world. The sizes of pollen grains fall into the classification group magna (pollen grain diameter 50–100 μm). Pollen shapes vary from preoblate to prolate and their polar views were triangulate and lobate. The exine ornamentation varies from gemmate in S. rotata to spinulate in the rest studied species. Species of Scabiosa have been dispersed in UPGMA tree that this confirmed the previous studies about taxonomic problems and species complexity in this genus. These results show the transfer of the some Scabisoa species to Lomelosia Raf. based on palynological characters. Pollen morphology of the family is helpful at the generic and specific level.Bangladesh J. Plant Taxon. 24(2): 129–136, 2017 (December)

scholarly journals Pollen Morphology and Variability of Abies alba Mill. Genotypes from South-Western Poland

Forests ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1125
Author(s):  
Dorota Wrońska-Pilarek ◽  
Monika Dering ◽  
Jan Bocianowski ◽  
Kacper Lechowicz ◽  
Wojciech Kowalkowski ◽  
...  
Keyword(s):  
Pollen Morphology ◽  
Geographical Location ◽  
Abies Alba ◽  
Intraspecific Variability ◽  
Pollen Grains ◽  
Polar Axis ◽  
Seed Orchard ◽  
Diagnostic Features ◽  
Pollen Shape ◽  
First Time

The objective of this study was to investigate pollen morphology and ranges of intraspecific variability of Abies alba Mill. Pollen grains were collected from nine clonal seed orchards of A. alba in the Sudety Mountains, (South-Western Poland). At each seed orchard, 4–6 grafts were selected. Each individual (graft) was represented by 30 pollen grains and 1440 pollen grains were measured totally. Eight quantitative and four qualitative features of pollen grains were analysed. The diagnostic features of pollen grains for the studied species were: Exine surface of pollen corpus (cappa and leptoma) and sacci, the length of the polar axis (P), pollen shape (P/E ratio), and a new trait—saccus shape (A/B ratio — saccus width (A) to his length (B)). Pollen features made possible to differentiate seven individual genotypes (samples). To our knowledge, this is the first time that the intraspecific and interindividual variability of pollen grains of A. alba were investigated. The most different were the pollen grains from samples—genotypes 13 (Bystrzyca Kłodzka) and 18 (Jugów), and also (although to a lesser extent) genotypes—11 (Kamienna Góra), 30, 31 (Jugów), and 44 (Szklarska Poręba). No significant relationships were observed between the pollen grain traits and the geographical location of the collection sites.

Pollen morphology of selected species of Anacardiaceae and its taxonomic significance

Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Alano César Rocha de Assis ◽  
Eduardo Custódio Gasparino ◽  
Marileide Dias Saba
Keyword(s):  
Phylogenetic Relationships ◽  
Quantitative Data ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Taxonomic Significance ◽  
Electron Microscopies ◽  
Oblate Spheroidal ◽  
Exine Ornamentation ◽  
The Family ◽  
Scanning Electron

Abstract In the present work, the pollen morphology of 22 species of Anacardiaceae was analysed, occurring in the state of Bahia, Brazil. The palynological material was obtained from specimens deposited in herbaria. The pollen grains were acetolysed, measured, illustrated and described under light and scanning electron microscopies. The quantitative data were statistically analysed according to sample size. The analysed species presented pollen grains in monads, small to medium sized, isopolar, amb circular to subtriangular, with shapes varying from oblate-spheroidal to prolate, 3-colporate, with fastigium in some species. The exine ornamentation was characterized as psilate, striate, microreticulate-striate, striato-perforate, suprastriato-infra(micro)reticulate. The pollen morphology variation confirms the eurypalynous character of the family. The attributes of the apertures and exine may collaborate in the taxonomic circumscription and provide a clarification of the phylogenetic relationships of the group.

scholarly journals Pollen morphology and variability of Polish native species from genus Salix L.

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0243993
Author(s):  
Irmina Maciejewska-Rutkowska ◽  
Jan Bocianowski ◽  
Dorota Wrońska-Pilarek
Keyword(s):  
Native Species ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar Axis ◽  
High Variability ◽  
Interspecific Variability ◽  
Equatorial Diameter ◽  
Exine Ornamentation ◽  
Lower Variability ◽  
Biometric Features

The pollen morphology was studied of 24 Salix species native to Poland, which represented two subgenera, 17 sections and five subsections occurring in Poland. The aim of this study was to discover the taxonomical usefulness of the pollen features under analysis, and to investigate the ranges of their interspecific variability. In total, 720 pollen grains were studied. They were analysed with respect to seven quantitative features (length of the polar axis ˗ P, equatorial diameter ˗ E, length of the ectoaperture ˗ Le, exine thickness ˗ Ex, and P/E, Ex/P and Le/P ratios) and the following qualitative ones: pollen outline and exine ornamentation. The most important features were exine ornamentation (muri, lumina and margo) characters. The pollen features should be treated as auxiliary because they allowed to distinguish eight individual Salix species, and five groups of species. Statistical analysis of the studied traits indicated a high variability among the tested species. The most variable biometric features were P, E and Le, while lower variability occurred in P/E, Le/P and d/E.

scholarly journals Pollen morphology of the Polish species of the family Caprifoliaceae. Part 1

2014 ◽  
Vol 66 (2) ◽  
pp. 133-142 ◽  
Author(s):  
Irmina Maciejewska
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar Axis ◽  
The Family

This paper contains results of studies on pollen morphology of 5 Polish species of the family <em>Caprifoliaceae</em> (genera <em>Sambucus</em> and <em>Viburnum</em>). The pollen has been examined with LM and SEM. Besides detailed descriptions, series of microphotographs are presented. All examined species have small to medium-sized grains, with prolate polar axis, reticulate ornamentation (at least in mesocolpia), relatively long ectoapertures and with often visible equatorial bridges. Extent of fusion of capita in muri allows to divide observed pollen grains into 2 subtypes: one for examined Sambucus species and for<em> V. opulus</em>, the second for <em>V. lantana</em>.

scholarly journals Pollen Morphology of Some Turkish Salvia L. (Lamiaceae: Mentheae) Species

2020 ◽  
Vol 38 ◽  
Author(s):  
K. AKTA ◽  
C. ÖZDEMIR ◽  
M. ÖZKAN ◽  
P. BARAN
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar Axis ◽  
Radial Symmetry ◽  
Exine Ornamentation ◽  
Pollen Shape ◽  
Axis Length ◽  
Different Characteristics ◽  
Scanning Electron

ABSTRACT: In this presented work, the pollen morphologies of twenty-one taxa, nine of them endemic from Turkey, belonging to the genus Salvia (Lamiaceae: sub-family Nepetoideae: tribe Mentheae: sub-tribe Salviinae), S. aethiopis L., S. argentea L., S. aytachii Vural & Adigüzel, S. blepharochlaena Hedge & Hub.-Mor., S. cadmica Boiss., S. ceratophylla L., S. cryptantha Montbret & Aucher, S. frigida Boiss., S. fructicosa Miller, S. halophile Hedge, S. napifolia Jacq., S. microstegia Boiss. & Bal., S. recognita Fisch. & Mey. S. sclarea L., S. smyrnaea Boiss. S. suffruticosa Montbret & Aucher, S. tchihatcheffii (Fisch. & Mey.) Boiss., S. tometosa Bertol, S. verbenaca L., S. viridis L., and S. wiedemanni Boiss. and collected throughout the Turkey, have been intensively studied by using light (LM) and a scanning electron (SEM) microscopy. The objectives of this study are to investigate the pollen morphologies of twenty-one taxa of Turkish Salvia (nine of which are endemic) and to present similar and different characteristics of the taxa. The investigated whole pollen grains had a structure of both isopolar and radial symmetry. Overall, types of aperture were mostly hexacolpate, but it was also determined that the aperture type of S. viridis was both hexacolpate and octacolpate. The pollen grains had characteristic shapes of spheroidal, suboblate, prolate and subprolate. The exine ornamentation was bireticulate and reticulate-perforate. It was determined by the results of palynological studies that pollen morphology changed amongst these studied taxa. As a conclusion, the results of the present study show that palynological characters such as pollen shape, polar axis length (P), equatorial axis length (E), aperture numbers and types and exine ornamentation, exhibit remarkable differences amongst the studied taxa.

scholarly journals Pollen morphology of Polish species from the genus Rubus L. (Rosaceae) and its systematic importance

2019 ◽  
Author(s):  
Kacper Lechowicz ◽  
Dorota Wrońska-Pilarek ◽  
Jan Bocianowski ◽  
Tomasz Maliński
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar Axis ◽  
The Other ◽  
Individual Species ◽  
Bridge Structure ◽  
Interspecific Variability ◽  
Exine Ornamentation ◽  
First Time ◽  
Systematic Importance

AbstractThe genus Rubus L. (Rosaceae) has as yet not been investigated satisfactorily in terms of palynology. This genus is taxonomically very difficult due to the large number of species and problems with their delimitation, as well as very different distribution areas of particular species. The aim of this study was to investigate pollen morphology and for the first time the ranges of intrageneric and interspecific variability of Rubus species, as well as verify the taxonomic usefulness of these traits in distinguishing studied taxa from this genus. They were analysed for 11 quantitative pollen characteristics and the following qualitative ones: exine ornamentation, pollen outline and shape, as well as bridge structure. Analyses were conducted on a total of 1740 pollen grains, which represent 58 blackberry species belonging to a majority of subgenera and all the sections and series found in Poland. The diagnostic characters included exine ornamentation (exine ornamentation type, width and direction of grooves and striae, number and diameter of perforations) and length of the polar axis (P). The arrangement of the examined species on the dendrogram does not corroborate division of the genus Rubus into subgenera, sections and series currently adopted in taxonomy. The lack of dependence may result from apomixis observed in Rubus, which could reduce natural variability. Pollen features should be treated in taxonomy as auxiliary, because they fail to differentiate several (10) individual species, while the other ones create groups with similar pollen traits.

scholarly journals Palynological study of some Iranian species of Scabiosa L. (Caprifoliaceae)

2016 ◽  
Vol 23 (2) ◽  
pp. 215-222 ◽  
Author(s):  
Ebadi-Nahari Mostafa ◽  
Nikzat Siahkola
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar View ◽  
Polar Axis ◽  
Morphological Classification ◽  
Aperture Diameter ◽  
Exine Ornamentation ◽  
Plant Taxon ◽  
Pollen Shape ◽  
Palynological Study

The pollen morphology of six species of Scabiosa L. (Caprifoliaceae) from Iran has been examined by scanning electron microscopy (SEM). Pollen grains were tricolpate in S. columbaria and triporate in the rest studied species. Two types of exine ornamentation were revealed: spinulate and gemmate. The pollen shape in polar view varied from triangular to circular among investigated taxa. Statistical analysis showed that some quantitative morphological features such as polar axis (P), equatorial axis (E) and aperture diameter were main characters in identification of the taxa studied. These taxa were separated from each other using cluster analysis and placed within two clusters. Our result based on UPGMA analysis is in agreement with morphological classification and recent findings on taxonomic position of the Scabiosa.Bangladesh J. Plant Taxon. 23(2): 215-222, 2016 (December)

Comparative morphological, anatomical, micromorphological, and palynological studies on the genera Opopanax and Crenosciadium (Apiaceae)

Phytotaxa ◽  
2018 ◽  
Vol 372 (1) ◽  
pp. 35 ◽  
Author(s):  
ÖZLEM ÇETIN ◽  
MUSTAFA ÇELIK
Keyword(s):  
Cross Sections ◽  
Mediterranean Region ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Molecular Data ◽  
Monotypic Genus ◽  
Western Asia ◽  
The Family ◽  
Surface Ornamentation ◽  
Fruit Surface

In the present study, morphological, micromorphological, palynological and anatomical characteristics of the genera Opopanax and Crenosciadium are reviewed and compared. The genus Opopanax is distributed in southern Europe, the Mediterranean region and Western Asia, and it is represented by three species in Turkey. Crenosciadium is a poorly known monotypic genus from Turkey, recently treated as synonym in Opopanax. Expanded descriptions, phenology, geographic distributions, and images of habitus of Opopanax and Crenosciadium are given. The differences between the two genera are discussed. The pollen morphology of Opopanax and Crenosciadium is studied by SEM and LM. The palynological results confirmed the stenopalynous characteristic of the family Apiaceae, and revealed that the pollen grains of both genera are perprolate in shape. Also fruit surface ornamentation of both genera is typically striate, and epidermal cells are polygonal or elongated in one direction. Cross-sections of mature fruits are examined and a detailed anatomical description is presented. Mericarp shape and width are very useful characters for discrimination between Opopanax and Crenosciadium; mericarp ribs are also very significant characteristics to discriminate both genera. Our findings, together with previous molecular data, clearly indicate that Crenosciadium differs considerably from Opopanax, and therefore it should be accepted at genus rank.

scholarly journals Pollen morphology of Iranian Dracocephalum L. (Lamiaceae) and its taxonomic significance

2015 ◽  
Vol 22 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Maryam Naderifar ◽  
Ali Sonboli ◽  
Abbas Gholipour
Keyword(s):  
Electron Microscopy ◽  
Pollen Morphology ◽  
Pollen Grains ◽  
Polar View ◽  
Taxonomic Significance ◽  
Infrageneric Classification ◽  
Exine Ornamentation ◽  
Plant Taxon ◽  
Scanning Electron

Pollen morphology of 11 Iranian Dracocephalum L. species was investigated using light and scanning electron microscopy to evaluate their taxonomic significance for the infrageneric classification of the genus. Pollen grains of all examined taxa were isopolar, hexacolpate, circular in polar view and spheroidal to prolate in equatorial view (P/E = 1.0?2.0). The smallest pollen grains were observed in D. aucheri (P = 29.7 ?m, E = 22.6 ?m), while the largest pollen was found in D. lindbergii (P = 45.1 ?m, E = 33.7 ?m). The highest and lowest apocolpium index (AI) were measured in D. aucheri (AI = 0.27) and D. surmandinum (AI = 0.08), respectively. Colpus membrane was egranulate in all examined species except for D. multicaule and D. ghahremanii. The main exine ornamentation type was characterized as bireticulate including five different subtypes. The results revealed that the exine ornamentation is a diagnostic character useful for the classification of Dracocephalum.Bangladesh J. Plant Taxon. 22(2): 99-110, 2015 (December)

Sign in / Sign up

Export Citation Format

Share Document