Anthropic pollen indicators: poaceae pollen of non-native species in Southern Brazil

Radaeski, Jefferson Nunes

doi:10.15406/oajs.2018.02.00059

Cited by 2 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morgado et al (2015) defined pollen grains of Z. mays are large, spherical and ovoid. Radaeski et al (2018) analyzed pollen grains of Z. mays as Spheroidal, monoporate, radially symmetry, monads, pore circular with anulus. We noticed monad and large size pollen grains of Z. mays having PD of 73.65 μm, spheroidal, sub‐prolate grains having P/E ratio (1.15).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

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

Attique

Zafar

Ahmad

et al. 2022

Microscopy Res & Technique

View full text Add to dashboard Cite

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

show abstract

Section: Discussionmentioning

confidence: 99%

“…Pollen of Z. mays are subspheroidal, monoporate and having distinct annulus and psilate to scabrate under light microscopy. Morgado et al (2015) defined pollen grains of Z. mays are large, spherical and ovoid Radaeski et al (2018). analyzed pollen grains of Z. mays as Spheroidal, monoporate, radially symmetry, monads, pore circular with anulus.…”

mentioning

confidence: 99%

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

Attique

Zafar

Ahmad

et al. 2022

Microscopy Res & Technique

View full text Add to dashboard Cite

show abstract

“…However, insufficient attention is given in the scientific literature to the issue of studying the morphology of grass pollen. Available sources indicate the interest of scientists in studying the structure of pollen in agriculture [22], as well as -the interest in fossil pollen studies [12,23].…”

Section: Discussionmentioning

confidence: 99%

Grass pollen morphology investigation as a basis for monitoring of allergenic biological particles in an automatic mode

2020

View full text Add to dashboard Cite

A clear distinction between the morphology of allergenic pollen grains of various genera of the Poaceae family is an important task in determining the causal allergenic factors in the population. It allows significant improvement of the efficiency of seasonal allergy diagnostics caused by grass pollen. Moreover, it let to perform better predictions of allergenic risks for people, suffering from pollinosis caused by Poaceae pollen. Therefore, the aim of our study was to establish the morphological difference between the pollen grains of plants of various species of Poaceae family in order to further determination of the possibility to use the established distinctions for the identification of pollen in aerobiological studies. For this, both herbarium samples and pollen of the studied plants were collected in the field during May-June 2019 in Vinnytsia. The pollen was shaken off the anthers directly onto a glass slide, immediately stained with basic fuchsin, and covered with a cover slip. The sizes of pollen grains – their width and length – were determined and analyzed using the PhotoM 1.21 program, and the obtained data on the sizes of pollen were divided into categories by the quartile method in Excel. Three categories of pollen sizes were identified: large, medium and small. Large grains had width and length parameters of 40 μm or more, average grains ranged from 26 to 39 μm, and small grains had a size of 26 μm or lesser in width and length. The large category includes the pollen of Hordeum morinum (39.5-53.1 μm), Elytrigia repens (41-48 μm), Secale cereale (48.4-62.5 μm) and Bromus arvensis (42.2-52.7 μm). The medium grain category included pollen from Dactylis glomerata (29.2-38.1 μm), Poa spp. (26.1-37.3 μm), Panicum capillare (33.3-39.5 μm), Lolium perenne (30.4-35.3 μm), Bromus sterilis (28.3-30.8 μm). The pollen size of B. ramosus ranged from 26.1 to 39.5 µm, and B. tectorum was from 35 to 38.4 µm. The pollen grains of Poa pratense (22.1-25.9 μm) and Piptatherum spp were assigned to the category of the smallest pollen (20.3-24.1 microns). Agrostis gigantea was the only grass pollen type whose size fitted for each category. We found out large, medium-sized and grains of 25.0-27.7 microns, which lie between categories 2 and 3, for different populations of this plant. Consequently, some genera and species of Poaceae can be distinguished by the size of their pollen, while in others the size of pollen grains varies considerably. It is necessary to carry out further research that will help to establish the morphology of pollen of a larger number of Grass family plants. This will significantly improve the diagnosis and prevention of seasonal allergy caused by grass pollen in Ukraine.

show abstract

Anthropic pollen indicators: poaceae pollen of non-native species in Southern Brazil

Cited by 2 publications

References 26 publications

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

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

Grass pollen morphology investigation as a basis for monitoring of allergenic biological particles in an automatic mode

Contact Info

Product

Resources

About