Allergenic pollen in the atmosphere of Rohtak city, Haryana (India): a pioneer study

Ahlawat, Manisha; Dahiya, Pushpa; Chaudhary, Dhruva

doi:10.1007/s10453-013-9323-1

Cited by 14 publications

(3 citation statements)

References 18 publications

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“…In E. crus‐galli the pollen grains are medium to large in size, psilate, monad, prolate, circular, and radially symmetrical in polar view. This result is similar to the previous work done by Ahlawat, Dahiya, and Chaudhary (2014) and Morim and Lughadha (2015). Polar diameter is 56 ± 2.31 μm and equatorial diameter is 36.25 ± 1.25 μm (Joly, Barillé, Barreau, Mancheron, & Visset, 2007).…”

Section: Discussionsupporting

confidence: 92%

Palyno‐morphological characterization of selected allergenic taxa of family Poaceae from Islamabad‐Pakistan using microscopic techniques

Ullah

Ahmad

Jabeen

et al. 2021

Microscopy Res & Technique

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Statistics around the world show an increased risk of high allergies associated with plants. The role of allergenic pollen is now well known. The most serious allergenic diseases are asthma and rhinitis, which affect 5–30% of the population of industrialized countries. This work focuses on the exploration of allergenic grass species of Islamabad, Pakistan and use microscopic techniques to correctly identify them. This study contains 11 species of grasses which showed variations in pollen morphological features. The dominant pollen shape was prolate, prolate‐spheroidal and sub oblate. The largest polar diameter was calculated for Echinochloa crus‐galli (56.00 μm) while the largest equatorial diameter was found in Cenchrus ciliaris (45.00 μm). Exine ornamentation varied from Gemmate–verrucate, Scabrate–reugulate, Verrucate–reticulate, Gemmate–Scabrate, Fine–Gemmate, Gemmate–rugulate, Gemmate–reticulate, Gemmate–scabrate, Scabrate–verrucate, and Scabrate. Maximum exine thickness was found in Eleusine indica (4.90 μm) while in C. ciliaris (1.50 μm) the minimum thickness of exine was measured. In E. crus‐galli (1.54 μm), the largest P to E value was measured and the smallest value was noticed in Setaria verticillata (0.86 μm). The study was performed with an aim to identify the allergenic plant species in Islamabad‐Pakistan using pollen morphological studies. This study provides significant information, to arrange the pollen types within their defined classes and to discuss various pollen features for developing an allergenic pollen atlas.

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Section: Discussionsupporting

confidence: 92%

Palyno‐morphological characterization of selected allergenic taxa of family Poaceae from Islamabad‐Pakistan using microscopic techniques

Ullah

Ahmad

Jabeen

et al. 2021

Microscopy Res & Technique

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“…belonging to the Poaceae family, has earlier been proven to be the major aeroallergens in Delhi (Singh et al, 1987;Rajkumar, 2003). Ahlawat et al (2013) established the allergenicity of some grasses such as Imperata cylindrica, Cynodon dactylon, Pennisetum typhoides and Sorghum vulgare, using skin prick test and ELISA.…”

Section: Allergenicity Of Poaceae Pollenmentioning

confidence: 99%

Aerobiological investigation, meteorological impacts on pollen distribution and allergenicity of major pollen types in the atmosphere of Southeastern Nigeria

Alebiosu

Adekanmbi

2022

Preprint

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Airborne palynomorphs are regarded as important organic granules causing human allergic reactions such as pollinosis and asthma. In the present study, monthly depositional amount of airborne pollen and fern spores, impact of the surrounding plants on pollen distribution and allergenicity of common airborne pollen types, were investigated at selected sampling stations in Ebonyi and Anambra States, Southeastern Nigeria. Bioaerosols were collected with Tauber-like pollen samplers and subjected to conventional palynological treatment processes, microscopy and photomicrography. Enumeration of plants within the immediate vegetation showed that local plants produced some atmospheric pollen types at the study locations. Among other meteorological parameters, only relative humidity was found to yield statistically significant and positive correlation with monthly total airborne pollen concentrations in Anambra State. A positive but not significant correlation was also found between total airborne pollen counts and relative humidity in Ebonyi State. Nephrolepis sp., Pteris sp. and a trilete fern produced spores, while diatoms were also recovered. Some common pollen types including those of Syzygium guineense (Willd.) DC. and Senna siamea (Lam.) Irwin et Barneby in Ebonyi State; Mariscus alternifolius Vahl. and Zea mays L. in Anambra State, were collected in order to quantify and extract their crude protein contents for Mus musculus sensitization to achieve serology (ELISA) and haematology (differential and total white blood cell counts). Statistical significance was tested and observed in the correlation between amounts of haematological and serological parameters yielded by each test group; variations between amounts of these parameters yielded by each test group and those of the control, as well as at differing periods of sensitization. In the Senna siamea test group of Mus musculus, histopathological morbid characteristics were observed, including areas of necrosis (presence of dead cells) in the bronchi of a mortality; areas of necrosis and congestion in the bronchi and lungs of another mortality, respectively, after second sensitization. The study confirmed all the selected pollen types as potential sources of allergy at the study areas and revealed a multiplex of interplay among triggers of pollen allergy at different intervals of administration in mice, establishing a model of immunological reactions to varied pollen antigens in humans.

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“…[4][5][6] Monitoring the concentrations of allergenic pollen in the air is now considered the most accurate method for assessing the health risk to those who have pollinosis globally. [7][8][9][10][11][12] The geographical location and bioclimatic conditions of an area determine the spatial variations in the airborne pollen spectra whereas, the temporal fluctuations are because of plant phenology and the local flora of that area. [13][14][15][16] Aeropalynological sampling is the key approach to assessing the presence and abundance of airborne allergens, utilizing diverse sampling devices such as gravimetric, impaction, suction, and filtration samplers.…”

Section: Introductionmentioning

confidence: 99%

Atlas of Airborne Pollens of Bikaner City

Verma

2024

JASR

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Plants that depend on wind to disperse their pollen generate copious amounts of pollen, blow across great distances, and trigger allergies in humans, even if people live far from the source. To manage pollen allergy, it is crucial to keep an eye on the amount of pollen in the air. Airborne pollen is identified by comparing it with reference collections, using taxonomic features such as the quantity and distribution of apertures, as well as various patterns of exine ornamentation. These characteristics serve as the primary criteria for identifying atmospheric pollen. Present study contributes to aeropalynological knowledge by documenting the airborne pollen spectrum in Bikaner, aiding in the identification of pollen grains with allergenic significance. These findings can inform public health strategies for managing pollen allergies and mitigating respiratory health risks associated with airborne pollen exposure.

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Allergenic pollen in the atmosphere of Rohtak city, Haryana (India): a pioneer study

Cited by 14 publications

References 18 publications

Palyno‐morphological characterization of selected allergenic taxa of family Poaceae from Islamabad‐Pakistan using microscopic techniques

Palyno‐morphological characterization of selected allergenic taxa of family Poaceae from Islamabad‐Pakistan using microscopic techniques

Aerobiological investigation, meteorological impacts on pollen distribution and allergenicity of major pollen types in the atmosphere of Southeastern Nigeria

Atlas of Airborne Pollens of Bikaner City

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