Pollen characters and their evolutionary and taxonomic significance: using light and confocal laser scanning microscope to study diverse plant pollen taxa from central India

Quamar, Md. Firoze; Singh, Priyanka; Garg, Arti; Tripathi, Swati; Farooqui, Anjum; Shukla, A. N.; Prasad, Naresh

doi:10.1080/01916122.2022.2070294

Cited by 10 publications

(4 citation statements)

References 80 publications

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“…The tricolpate aperture type is particularly prevalent among eudicots, whereas other aperture types like colpate, porate, and colporate are observed in dicots, as studied by [29]. In a broader context, the size of pollen grains holds significant importance, encompassing both small and medium-sized species under investigation [30]. Disparities in pollen sizes can be attributed to anomalies during meiosis, Beyond the characters of germination pores and exine cell wall ornamentation, pollen grain sizes hold tertiary significance, a perspective underscored by [30].…”

Section: Discussionmentioning

confidence: 99%

“…In a broader context, the size of pollen grains holds significant importance, encompassing both small and medium-sized species under investigation [30]. Disparities in pollen sizes can be attributed to anomalies during meiosis, Beyond the characters of germination pores and exine cell wall ornamentation, pollen grain sizes hold tertiary significance, a perspective underscored by [30]. Additionally, in order to advance Quaternary palaeoecological, palaeoclimatological, and paleoenvironmental research, it is imperative to improve the taxonomic resolution of fossil pollen identification [31].…”

Section: Discussionmentioning

confidence: 99%

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Taxonomic study of pollen grains for five species of Fabaceae Family

Bapir,

Galalaey

2023

KUJAS

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The objective of the study was to provide valuable palynological characteristics for the identification of Fabaceae taxa, which could potentially serve as distinguishing features for closely related species differentiation. Pollen samples were collected from fully developed flowers of 25 samples, encompassing five species within the Fabaceae Family Colutea cilicica Boiss. & Balansa, Glycyrrhiza glabra L., Spartium junceum L., Robinia pseudoacacia L., and Anagyris foetida L. The investigation involved the utilization of both light microscopy and electron scanning microscopy. Consequently, the observed pollen grains exhibited monad symmetry and were of medium to small dimensions. These grains displayed diverse ornamentation patterns including perforations, fossulate, reticulations, regular structures, and granulations. Moreover, a wide array of outline shapes was noted for pollen grains in both equatorial and polar views. Detailed examinations were performed using both light microscopy (LM) and electron scanning microscopy (SEM) techniques, revealing distinct differentiating characteristics among the examined taxa.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Taxonomic study of pollen grains for five species of Fabaceae Family

Bapir,

Galalaey

2023

KUJAS

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“…One of the key developments in resolving taxonomic issues, such as identifying and determining the phylogenetic relationships among angiosperm families, is the morphology of pollen. With their distinct floral patterns, pollen grains are distinguished by their notable exine sculpturing variations that function as a crucial taxonomic marker (Quamar et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Scanning electron microscopic exploration of intricate pollen morphology and antimicrobial potentials of gourd family

Alhomaidi

2024

Microscopy Res & Technique

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This study employs scanning electron microscopy (SEM) to delve into the intricate pollen morphology of Cucurbitaceae (Gourd Family) species, unraveling the nuanced details of their structural features. Concurrently, the research investigates the antimicrobial potentials encoded within these pollen grains, shedding light on their possible applications in the realm of natural antimicrobial agents. Cucurbitaceae plants showcases significant antibacterial and antifungal potentials, underscoring its potential as a source for novel antimicrobial compounds. This research endeavors to provide a comprehensive analysis of pollen morphometry in 12 Cucurbitaceous species, with the primary goal of identifying pollen morpho‐types to enrich the taxonomic understanding of the Cucurbitaceae. Following the Erdtman protocol, the study involved processing, measuring, and capturing pollen grains using SEM techniques. Qualitative data were analyzed to evaluate the variations in pollen types, size, and exine stratified sculptured layering. The pollen grains exhibit characteristics of being monads, ranging in size from medium to very large, with the prevailing shape being prolate‐spheroidal in six species. Notably, the maximum polar axis diameter was recorded for Cucurbita pepo (106.3 μm), while the minimum was observed in Zehneria anomala (32.6 μm). The grains of Cucurbitaceae exhibit diverse surface patterns, including reticulate columellae, reticulate, verrucate‐scabrate, verrucate‐gemmate, echinate baculate, reticulate‐perforate, and micro‐reticulate. This SEM investigation illuminates the intricacies of Cucurbitaceae pollen morphology while concurrently highlighting their noteworthy antimicrobial potentials.Highlights High‐resolution imaging reveals complex pollen morphology. Identification of unique antimicrobial structures on Cucurbitaceae pollen (gourd family). Exploring medicinal potential: Antimicrobial properties of cucurbitaceae species.

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“…Palynological analysis can be used in research on pollination, pollen dispersion, paleoecology, melissopalynology and forensics. Furthermore, it has fundamental importance in the study of ecological and evolutionary characteristics and phylogenetic relationships of different groups of plants (Cancelli et al 2005; Cui et al 2019; Mezzonato-Pires et al 2019; Gonçalves-Esteves et al 2022; Quamar et al 2022; Cartaxo-Pinto et al 2022a, 2022b, 2022c, 2023). The study of pollen grains is a useful tool for elucidating the taxonomy of several botanical families, and circumscribing genera and subgeneric categories (Gonçalves-Esteves et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Palynotaxonomy of Calea sect. Meyeria (Asteraceae: Neurolaeneae)

Cartaxo-Pinto,

Vieira,

Nascimento

et al. 2023

Palynology

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Calea comprises 157 species that occur in the Neotropics. The genus is organized into eight subgenera and 18 sections. Calea sect. Meyeria consists of eight species occurring exclusively in south-central Brazil. In this study, pollen grains from these eight species were sampled from herborized flower buds in pre-anthesis. Pollen samples were acetolyzed, measured, and photographed under a light microscope. Unacetolyzed pollen grains were examined under a scanning electron microscope. The results were used to characterize pollen morphology and construct a palynotaxonomic key for Calea sect. Meyeria. The analyzed pollen grains were monads, isopolar, usually medium-sized, oblate spheroidal, tricolporate, with lalongate endoaperture, the sexine echinate and thicker than the nexine, and six spines in the apocolpium region. The eight species have very similar pollen grains, but some characters are informative for this section, namely pollen size, polar area, sexine ornamentation, and endoaperture characteristics. Despite the similarity of the pollen grains, palynological analysis was able to contribute to the delimitation of Calea species, providing new information for species distinction within Calea sect. Meyeria.

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Pollen characters and their evolutionary and taxonomic significance: using light and confocal laser scanning microscope to study diverse plant pollen taxa from central India

Cited by 10 publications

References 80 publications

Taxonomic study of pollen grains for five species of Fabaceae Family

Taxonomic study of pollen grains for five species of Fabaceae Family

Scanning electron microscopic exploration of intricate pollen morphology and antimicrobial potentials of gourd family

Palynotaxonomy of Calea sect. Meyeria (Asteraceae: Neurolaeneae)

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