Pollen morphology of some species belonging to Codonoprasum and Allium sections of Allium (Liliaceae-Alliaceae) genus

Güler, Ümmügülsüm; Pehlivan, Sevil

doi:10.2478/s11756-006-0075-z

Cited by 18 publications

(32 citation statements)

References 7 publications

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“…Due to the high number of species in the genus, no comprehensive work can consider all species therein; rather, only local palynological studies including a manageable number of species can be conducted on the genus. Among the published work, the most detailed papers on the palynology of Allium (Kuprianova and Aliev 1979, Güler and Pehlivan 2006) underline the possible use of pollen morphology as an aid when answering taxonomic questions in the genus, especially for separating A. sect. Codonoprasum from sect.…”

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confidence: 99%

Pollen morphology of selected species of Allium (Alliaceae) distributed in Iran

Namin¹,

Mehrvarz²,

Zarré³

et al. 2009

Nordic Journal of Botany

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Pollen morphology of 19 species of Allium representing six subgenera and 12 sections, were studied. The following characters were recognized as important for separating taxa at different taxonomic ranks: the sulcus, presence or absence of perforations on the pollen surface, density of perforations, size of perforations and size of the pollen grains. Rugulate, rugulate–striate, and simple–perforate exine ornamentation were distinguished. The type of sulcus is very characteristic in A. subgen. Allium sect. Allium. The extended sulcus was not observed in any species the other sections of subgen. Allium studied here, such as sect. Caerulea (A.capitellatum), sect. Codonprasum (A.lenkoranicum and A.stamineum) and sect. Avulsea (A.rubellum and A.umblicatum). Imperforated pollen grains were observed in representatives of A. subgen. Reticulatobulbosa and subgen. Polyprason.

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mentioning

confidence: 99%

Pollen morphology of selected species of Allium (Alliaceae) distributed in Iran

Namin¹,

Mehrvarz²,

Zarré³

et al. 2009

Nordic Journal of Botany

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“…Die stuifmeelmorfologie van die Alliaceae is deur verskeie outeurs beskryf (Schulze 1980;Güler & Pehlivan 2006;Namin et al 2009). Schulze (1980) het die stuifmeelmorfologie van agt Alliaceae-genera (Allium, Gilliesia Lindl., Ipheion Raf., Miersia Lindl., Nothoscordum, Solaria Phil., Tristagma Poepp.…”

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“…en Tulbaghia) beskryf as sulkaat met lengtes van 30 µm -45 µm en 'n geretikuleerde wandstruktuur. Die stuifmeelmorfologie van Allium-spesies word beskryf as monosulkaat, prolaat, subprolaat of prolaatsferies en die eksienskulptuur as gerimpel, gerimpel-gestreep of perforaat (Güler & Pehlivan 2006;Namin et al 2009). …”

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“…Die beskrywings van hierdie spesies se stuifmeelkorrels stem ooreen met die beskrywings vir die Allium-spesies wat deur Güler & Pehlivan (2006) en Namin et al (2009) gedoen is, asook die beskrywings van die agt spesies wat deur Schulze (1980) ondersoek is. Die stuifmeelkorrels in hierdie studie is egter langer (42 µm -65 µm) as die korrels wat deur Schulze (1980) vir Allium (30 µm -45 µm) beskryf is.…”

Section: Besprekingunclassified

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Pollen morphology of <i>Prototulbaghia Vosa</i>: A comparative palynological study of the Southern African Alliaceae.

Andriessen

Struwig

Siebert

2013

Suid-Afrikaanse Tydskr Natuurwetenskap Tegnol

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The Southern African Alliaceae Borkh. is represented by four genera (Allium L., Nothoscordum Kunth, Tulbaghia L. and Prototulbaghia Vosa) and 28 species. The pollen morphology of the endangered monotypic genus Prototulbaghia has not been described before. A comparative study of the pollen morphology of Prototulbaghia siebertii Vosa, Nothoscordum borbonicum Kunth, Tulbaghia simmleri P.Beauv. and T. violaceae Harv. is presented in this article. Scanning electron microscopy, as well as light microscopy, were used to examine the pollen. The pollen morphology of the species can be described as perprolate and monosulcate, and the surface sculpture as reticulate and heterobrochate. However, the pollen of Prototulbaghia siebertii displays a unique characteristic as the grains are folded in their breadth with the tips touching, hence causing the grain to display a triangular and disulcate appearance. It might be possible to ascribe this fold to the process of harmomegathy or a still unknown event that occurs during the development of the pollen grain. This phenomenon should be further investigated to determine the cause of folding and whether it is a unique taxonomic characteristic of this genus, and if it could be of evolutionary significance for the Alliaceae.

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“…Many other characters are diagnostically important and commonly used in species descriptions. Scanning electron microscopy (SEM) has greatly improved the taxonomy of the genus, facilitating studies of the ultrasculpture and ornamentation of the seed coat (Pastor, 1981;Kruse, 1984Kruse, , 1992Èešmedžiev and Terzijski, 1997;Fritsch et al, 2006;Neshati and Fritsch, 2009;Celep et al, 2012;Choi et al, 2012), pollen grains (Güler and Pehlivan, 2006;Namin et al, 2009), bulb coats (De Wilde-Duyfjes, 1976McNeal, 1982McNeal, , 1992Choi and Oh, 2011), floral structures and leaf epidermal cells (Garbari et al, 1979;Krahulec, 1980;Choi et al, 2004;Choi and Oh, 2011).…”

Section: Introductionmentioning

confidence: 99%

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

Rola¹

2014

Acta Biologica Cracoviensia S. Botanica

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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.K Ke ey y w wo or rd ds s: : Allium, bulb tunic, calcium oxalate crystals, micromorphology, SEM, taxonomy, ultrasculpture.

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Pollen morphology of some species belonging to Codonoprasum and Allium sections of Allium (Liliaceae-Alliaceae) genus

Cited by 18 publications

References 7 publications

Pollen morphology of selected species of Allium (Alliaceae) distributed in Iran

Pollen morphology of selected species of Allium (Alliaceae) distributed in Iran

Pollen morphology of <i>Prototulbaghia Vosa</i>: A comparative palynological study of the Southern African Alliaceae.

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

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