CAPSULE, LEAF AND CYATHIAL GLAND MORPHOLOGY OF TURKISH PERENNIAL TAXA OF Euphorbia L. SECTION Pithyusa (Raf.) Lázaro

Genç, İlker; Kültür, Şükran; Ecevit-Genç, Gülay

doi:10.23902/trkjnat.342096

Cited by 2 publications

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“…Rchb., Chamaesyce Raf., Esula Pers. and Euphorbia, according to early studies based on geographical distribution, habit, several morphological characters such as stipules and leaves characters, number and morphology of involucral glands, and branching of inflorescences (Genc ¸et al 2018;Fayed et al 2020). In addition, the genus is represented by two subgenera Chamaesyce Raf.…”

Section: Introductionmentioning

confidence: 99%

Pollen morphology of some Euphorbia taxa and its systematic significance

Kürşat

2023

Palynology

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The current study's objective is to infer the specific pollen morphologies of 27 different Euphorbia L. Turkish taxa were cultivated using LM and SEM. Additionally, principal component analysis (PCA) is developed and cluster analysis is used to examine similarity grouping in this study. The results of the current study showed that tricolporate pollen grains are present in 24 different taxa of Euphorbia, whereas three other taxa E. denticulate, E. esula subsp. tommassiniana, and E. orientalis have tricolpate and tricolporate pollen grains. The results of this study also revealed that pollen grains frequently have a perforated pattern. The use of ornamentations with reticulate-and rugulate-perforate surfaces has also been discovered. The current study revealed that six taxa of Euphorbia have prolatespheroidal pollen shapes, while 20 of the 27 Euphorbia under study have oblate-spheroidal pollen shapes. But only the pollen of E. grisophylla, 1 of the 27 tested Euphorbia taxa, has a subprolate shape. On the other hand, the PCA results explained 92.16% of the variation, and the unweighted pair group method with arithmetic mean (UPGMA) dendrogram identified four taxonomic groupings, as follows: types 1-4.

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Section: Introductionmentioning

confidence: 99%

Pollen morphology of some Euphorbia taxa and its systematic significance

Kürşat

2023

Palynology

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“…Pithyusa (Raf.) Lázaro was studied by Genç and Kültür (2018) and Genç et al (2018). Can and Küçüker (2015) reported the seed morphology and surface microstructure of some Euphorbia taxa distributed in the European region of Turkey.…”

Section: Introductionmentioning

confidence: 99%

Palynological investigation of some Euphorbia L. (Euphorbiaceae) taxa from Turkey using light and scanning electron microscopy

Şafak Odabaşı

2023

Microscopy Res & Technique

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Euphorbia L., one of the largest genera of angiosperms, is represented by the subgenera Esula Pers. and Chamaesyce Raf. in Turkey. Subg. Esula is confined mainly to Eurasia, especially in the Mediterranean region, and has not yet been studied in detail palynologically. In the present study, the pollen morphology of 14 taxa belonging to the sections Helioscopia Dumort., Myrsiniteae (Boiss.) Lojac., Pithyusa (Raf.) Lázaro, Patellares (Prokh.) Frajman, Exiguae (Geltman) Riina & Molero, Paralias Dumort., and Esula (Pers) Dumort. of Euphorbia L. subg. Esula Pers. from European Turkey was examined using light and scanning electron microscopy. The pollen grains were found to be trizonocolporate, isopolar, radially symmetrical, medium in size, and oblate spheroidal and suboblate in shape. Ectoapertures were elongated colpi with distinct margins, widened at the equatorial region, and tapered at the ends; margo was present in all samples as a smooth exine surrounding the colpi. The endoapertures were lolongate pori with distinct costae. The exine was tectate‐perforate. The ornamentation was perforate, microreticulate‐perforate, microreticulate‐perforate with rugulose, or microreticulate‐perforate with a heterobrochate pattern. The sexine was generally thicker than the nexine, with some exceptions where the sexine was almost equal to the nexine. Pollen size, pollen shape, and exine ornamentation have taxonomic importance in distinguishing species; however, these features do not provide strong support for grouping or delimitating the taxa at the sectional level.Research Highlights Pollen size, pollen shape, and exine ornamentation are taxonomically important for distinguishing Euphorbia species. The exine ornamentation was observed to be perforate, microreticulate‐perforate, microreticulate‐perforate with a rugulose pattern, and microreticulate‐perforate with a heterobrochate pattern.

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CAPSULE, LEAF AND CYATHIAL GLAND MORPHOLOGY OF TURKISH PERENNIAL TAXA OF Euphorbia L. SECTION Pithyusa (Raf.) Lázaro

Cited by 2 publications

References 16 publications

Pollen morphology of some Euphorbia taxa and its systematic significance

Pollen morphology of some Euphorbia taxa and its systematic significance

Palynological investigation of some Euphorbia L. (Euphorbiaceae) taxa from Turkey using light and scanning electron microscopy

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