Pollen Diversity in the Tribe Cardueae (Asteraceae) and Its Taxonomic Significance

Microscopy Research and Technique, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

ABSTRACT The Cardueae with about 74 genera and 2500 species is one of the largest tribes family Asteraceae. taxonomy complicated unresolved, as it contains most diverse genera. main distribution centers are in eastern western Mediterranean, Irano‐Turanian region, central Asia, North Africa. Using pollen morphology can be a useful tool for identification delimitation taxa. Therefore, current study aims to describe types tribe based on features. Furthermore, addresses relationships among palynological features well morphology. Pollen 39 distributed 28 was examined by scanning electron microscopy. In present study, statistical analyses various clustering ordination methods were provided data. Based these results, members nine subtribes showed overlap This extreme heterogeneity taxa could attributed large number their high morphological diversity. However, suitable distinguished taxonomic differentiation Cardueae, including shape, size, polar axis equatorial diameter ratio [P/E], exine sculpture, spine size. Consequently, six identified studied Cardueae.

Язык: Английский

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Identification of pollen taxa by different microscopy techniques

PLoS ONE, Год журнала: 2021, Номер 16(9), С. e0256808 - e0256808

Опубликована: Сен. 1, 2021

Melissopalynology is an important analytical method to identify botanical origin of honey. Pollen grain recognition commonly performed by visual inspection a trained person. An alternative for automated pollen analysis based on the image technique. Image transfers information mathematical descriptions. In this work, suitability three microscopic techniques automatic grains was studied. 2D and 3D morphological characteristics, textural colour features, extended depth focus characteristics were used discrimination. study, 7 taxa total 2482 evaluated. The highest correct classification rate 93.05% achieved using phase contrast microscopy, followed dark field microscopy reaching 91.02%, finally light 88.88%. most significant discriminant (2D 3D) characteristics. Our results confirm potential discriminate in This work provides basis further research where dataset will be increased, new descriptors

Язык: Английский

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Pollen Morphology of Rosa sericea Complex and Their Taxonomic Contribution

Diversity, Год журнала: 2022, Номер 14(9), С. 705 - 705

Опубликована: Авг. 26, 2022

In this research, the pollen morphology of Rosa sericea complex has been studied by Scanning Electron Microscope (SEM). The present study aimed to provide baseline information for taxonomic identification R. taxa. sculpture, outline, and aperture show variability in includes taxonomically challenging species with undistinguishable boundaries. Identifying taxon boundaries closely related is fundamental investigating evolution biodiversity. Taxa circumscription insufficient, unresolved, a prerequisite comprehensive systematic revisions. To resolve these issues, we have attempted identify some important diagnostic characters complex. This research different qualitative quantitative characteristics pollen. included polar equatorial view, apertures, exine, size category, polarity contrast, features include diameter, P/E, colpi length width, distance between colpi. Pollen mono tricolporate. morphological here very few details which separate into distinct Some offer delimitation including apertures.

Язык: Английский

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Palynomorphological diversity among the Asteraceous honeybee flora: An aid to the correct taxonomic identification using multiple microscopic techniques

Microscopy Research and Technique, Год журнала: 2021, Номер 85(2), С. 570 - 590

Опубликована: Сен. 18, 2021

This study aimed to characterize the palynological morphology of melliferous species family Asteraceae belonged seven tribes which were categorized into 15 genera and studied under light scanning electron microscopy. The pollen grains acetolyzed, measured, described qualitatively. Quantitative data analyzed by descriptive multivariate statistical analysis. considering 11 quantitative characteristics. revealed that are circular, triangular, angular, semi-angular, quadrangular, pentagonal hexagonal amb, 3-colporate or 3-colpate. size is variable among species, ranged from 56.1 23.2 μm. Three types: oblate spheroidal (eight species), prolate (six suboblate (two species) observed. surface pattern exine varies echinoperforate, echinate, echinate microperforate, fenestrate, echinoperforate reticulate, microreticulate, perforate, tectate, scabrate. Exine thickness was calculated minimum in Cichorium intybus (2.47 μm) maximum Taraxacum campylodes (5.15 μm). A key bee floral based on morphological features grains, also provided. palynomorphological characters here can be potentially used correctly identify Asteraceous honeybee most commonly plants visited honeybees area.

Язык: Английский

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Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Microscopy Research and Technique, Год журнала: 2021, Номер 84(7), С. 1451 - 1461

Опубликована: Фев. 13, 2021

Abstract Although considerable progress has recently been made in the taxonomic study of Asparagaceae, but Polygonatum remains one most poorly investigated genus. Therefore, present was designed with aim, to document pollen micromorphology closely related taxa and its significance. Pollen micro‐morphological features were observed using scanning electron microscopy—SEM). The grains are monad, navicular, monocolpate, radially symmetrical. A significant variation exine sculpturing. Moreover, have perforate while some them mixed psilate perforate, microreticulate, sometimes scabrate, gemmate baculate. Hence, this documented morphology strengthens identification genus based on characters, which helps can be used as an additional tool for correct discrimination species at generic level.

Язык: Английский

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Pollen morphology of selected melliferous plants and its taxonomic implications using microscopy

Microscopy Research and Technique, Год журнала: 2022, Номер 85(7), С. 2361 - 2380

Опубликована: Март 5, 2022

This research aimed to explore the melliferous bee flora pollen from arid zones of District Attock, Islamabad Capital and Rawalpindi. Morpho-palynological features has provided key information for classification help explain taxonomy several genera species. Therefore, in this work, we examined morphological characters potentially be used species delimitation flora. A total 18 floral species, classified into 12 different families were collected, pressed, identified then acetolyized observe grains under microscopy. Bee can described by small, medium large sized morphotypes presenting five types shapes, prolate spheroidal (seven species), sub-prolate (six oblate (three (one each) was examined. The observed polar equatorial diameter found maximum Zea mays 73.5 μm Pelargonium inquinans 66.75 respectively. Pollen six namely: tricolporate, 3-zonocolporate, monoportae, tetracolporate, tetraporate mononsulcate. Whereas highest value colpi length measured Grewia tenax (24.55 μm). Exine surface nature echinate psilate scabrate. thickness noted Verbena tenuisecta (8.40 μm) minimum Citrus macrocarpa (0.4 considered difficult identify based on other traits successfully distinguished using quantitative qualitative traits, confirming importance morphology diagnose correctly honeybee RESEARCH HIGHLIGHTS: diversity among Highly variations via microscopy micromorphology. Palyno-morph taxonomic identification

Язык: Английский

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Formulation and characterization of Aloe vera gel and tomato powder containing cream

Acta Ecologica Sinica, Год журнала: 2021, Номер 42(2), С. 34 - 42

Опубликована: Фев. 6, 2021

Язык: Английский

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Pollen micromorphology and its taxonomic significance in the selected melliferous taxa of Upper Dir, Khyber Pakhtunkhwa: insights for honeybee-plant interactions

Genetic Resources and Crop Evolution, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Palynological characterization and taxonomic delimitation of the genus Salvia L. in Pakistan

Palynology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 20, 2025

Язык: Английский

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Has Quaternary palynology reached its climax?

The Holocene, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

Throughout more than 100 years of its history palynology has become an independent discipline that is being applied in various fields from palaeoecology, aerobiology, forensic sciences to taxonomy. Bibliometric analysis allows distinguish different phases the evolution palynology. From initial phase, when first pioneer results were released, through building phase potential pollen been expanding into new research areas, mature which becomes a basic method with worldwide recognition many scientific fields. However, scientometric palynological documents suggests second decade 20th century, increasing trend number published stopped. This tendency observed most journals publishing content. may suggest reached climax. Moreover, last couple show slow but constant drop documents. During this period also decrease mean citation per document and year observed. poses question – does issue reflect only state or wider phenomenon touching other related as for example palaeoecology? On hand, bibliometric points out some positive aspects such increase international co-authorship co-authors indicates development specialization discipline.

Язык: Английский

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