Pollen morphology of the coastal species of Turkish Limonium (Plumbaginaceae)

Doğan, Cahit; Baysal, Edibe Özmen

doi:10.11646/phytotaxa.388.3.1

Cited by 5 publications

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“…Therefore, these are good taxonomic characteristics for separating the two species. These results were consistent with the study of Doḡan;Baysal (2019).…”

Section: Discussionsupporting

confidence: 94%

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STUDY SOME TAXONOMIC ASPECTS OF THE TWO SPECIES Limonium meyeri (Boiss.) Kuntze AND Limonium thouinii (Viv.) Kuntze, IN IRAQ

AL-Amery,

Al-Qaraawi,

Abu-Serag

et al. 2024

NAT

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The research aims to separate two species of the genus Limonium (Limonium meyeri and Limonium tuinii) using some Morphological and anatomical characters as taxonomic evidence. The current research included the study of the micro-characteristics of pollen grains and some anatomical characteristics of the stem and leaf using the light and Scanning electron microscope for separation of the species. The attributes of pollen grains (the size of the pollen, the germinating aperture width, and the surface ornamentation). The average length of the polar axis in the polar view reached 45 µm in L. meyeri and 35 µm in L. thouinii. In addition to the variation in the width of the germination aperture width, which was 17.5 µm in L. meyeri and 7.5 µm in L. thouinii. as well as the variations in the characteristics of the epidermal cells and the cross-section of the stems, are of good taxonomic importance to separate the two species. The research confirmed that the micro-characteristics of pollen grains and the anatomical characteristics are of complementary taxonomic importance to the morphological traits in separating genera and species. Keywords: Plumbaginaceae; pollen grains; anatomy of the stem. Aspectos taxonômicos das espécies vegetais Limonium meyeri (Boiss.) Kuntze e Limonium tuinii (Viv.) Kuntze, no Iraque RESUMO: Esta pesquisa objetivou separar duas espécies do gênero Limonium (Limonium meyeri e Limonium tuinii) utilizando alguns caracteres morfológicos e anatômicos como evidência taxonômica. A presente pesquisa incluiu o estudo das micro características dos grãos de pólen e algumas características anatômicas do caule e da folha utilizando o microscópio óptico e eletrônico de varredura para separação das espécies. Os atributos dos grãos de pólen (tamanho do pólen, largura da abertura de germinação e ornamentação da superfície). O comprimento médio do eixo polar na visão polar atingiu 45 µm em L. meyeri e 35 µm em L. tuinii. Além da variação na largura da abertura de germinação, que foi de 17,5 µm em L. meyeri e 7,5 µm em L. tuinii. As variações nas características das células epidérmicas e na secção transversal dos caules, foram importantes caracteres taxonômicos para separar as duas espécies. A pesquisa confirmou que as micro características dos grãos de pólen e as características anatômicas são de importância taxonômica complementar às características morfológicas na separação de gêneros e espécies. Palavras-chave: Plumbaginaceae; grãos de pólen; anatomia do caule.

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“…Therefore, these are good taxonomic characteristics for separating the two species. These results were consistent with the study of Doḡan;Baysal (2019).…”

Section: Discussionsupporting

confidence: 94%

“…In two species, pollen grains were 3-zonocolporate and medium in size. These results were consistent with the study of Doḡan;Baysal (2019). As Walker;Doyle (1975) showed, the Tricolpate is the main and basic type found in eudicots.…”

Section: Discussionsupporting

confidence: 91%

STUDY SOME TAXONOMIC ASPECTS OF THE TWO SPECIES Limonium meyeri (Boiss.) Kuntze AND Limonium thouinii (Viv.) Kuntze, IN IRAQ

AL-Amery,

Al-Qaraawi,

Abu-Serag

et al. 2024

NAT

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“…(dimensions) and qualitative (ornamentation, colour) data of pollen have significant value in botanical (Smitha et al, 2018) and taxonomic classification, due to preserved palynological features in many plants (Dogan and Baysal, 2019).…”

Section: Quantitativementioning

confidence: 99%

Study of Phenotypes Variability of Pollen Grains Malus domestica Borkh. by Scanning Electron Microscopy

Sedláčková¹

2021

Agrobiodivers Improv Nutr health life Qual

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The studying of Malus domestica Borkh. pollen allows us to determine the details of morphological characteristics and describe the most important parameters and pollen sculpture that can be used to identify representatives of species. We analysed pollen morphology of seven Malus domestica genotypes from old and local varieties from the territory of Slovakia via a scanning electron microscope. We used principal components analysis to explore variability in pollen grain size (polar and equatorial diameter), shape, aperture type, and exine ornamentation. The complexity of these morphological characteristics and ultrastructure allows determining the differences or similarities between the same and various species and genotypes, which may be a useful tool for systematics with significant diagnostic value. Findings confirmed small differences among the genotypes in measured traits with polar and equatorial diameters in the range from 31.85 to 42.85 μm and from 21.23 to 23.93 μm, respectively. Shape index (P/E ratio) depending on elongation or roundness of pollen grains varied from 1.44 to 1.87. Hierarchical cluster analysis and principal component analysis of morphological data helped to compare evaluated morphometric parameters and identified five closely related groups. It was noted that diversity of surface sculpturing of pollen grains in combination with shape and size enables to use of a complex of thin morphologic signs for M. domestica pollen identifications. Pollen data combined with other morphological evidence (e.g., floral characters) have more recently become an important indicator of which genotypes may be the best representatives of species.

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Pollen and Leaf Micromorphological Characteristics of Spiny Almonds (Prunus subgenus Amygdalus) in Iran

Bayat,

Attar,

Sotoodeh

2024

Microscopy Res & Technique

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This study investigates the micromorphological characteristics of pollen grains and leaf epidermal cells from 20 accessions across four species of spiny almonds using scanning electron microscopy. Thirteen quantitative traits of pollen grains, including exine sculpturing, were analyzed alongside qualitative features such as shape, exine sculpture type, and aperture type. Additionally, four quantitative and five qualitative features of the leaf epidermis were examined, focusing on cuticular ornamentation patterns, types of epicuticular wax, and stomatal measurements. The pollen grains were found to be isopolar monads, radially symmetric, medium‐sized, varying from prolate spheroidal to prolate, and exhibiting 3‐colporate to 3‐colpate structures. The exine sculpturing was generally striate with short and long ridges, with or without perforations, and could be classified into three types. Notably, in the Isfahan population of Prunus lycioides and the North Khorasan population of Prunus spinosissima, the exine sculpture types were distinctly different, being rugulate and reticulate, respectively. Multivariate statistical analysis identified equatorial diameter, colpus length and width, and ridge width as key diagnostic markers for species identification within spiny almonds. Principal component analysis and hierarchical clustering further highlighted the significance of stomatal length, cuticular ornamentation patterns, and epicuticular wax types in differentiating among taxa. We conclude that groupings recognized in recent classifications of the subgenus Amygdalus (spiny almonds) remain challenging to delineate solely based on palynological data, as diverse pollen types are present across different clades and subclades. Furthermore, micromorphological leaf traits proved valuable in distinguishing certain spiny almond taxa, and the traits of epidermal cells may reflect the ecological adaptations of spiny almond species.

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Pollen morphology of the coastal species of Turkish Limonium (Plumbaginaceae)

Cited by 5 publications

References 0 publications

STUDY SOME TAXONOMIC ASPECTS OF THE TWO SPECIES Limonium meyeri (Boiss.) Kuntze AND Limonium thouinii (Viv.) Kuntze, IN IRAQ

STUDY SOME TAXONOMIC ASPECTS OF THE TWO SPECIES Limonium meyeri (Boiss.) Kuntze AND Limonium thouinii (Viv.) Kuntze, IN IRAQ

Study of Phenotypes Variability of Pollen Grains Malus domestica Borkh. by Scanning Electron Microscopy

Pollen and Leaf Micromorphological Characteristics of Spiny Almonds (Prunus subgenus Amygdalus) in Iran

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