Atmospheric pollen content off West Africa

Calleja, Michel; Rossignol-Strick, Martine; Duzer, D.

doi:10.1016/0034-6667(93)90029-t

Cited by 38 publications

(26 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This finding agrees favourably with the report of Njokuocha and Ukeje (2006) who opined that fungal spores are cosmopolitan in distribution and constitute a large proportion of the airborne palynomorphs trapped in most aeropalynological studies. Although fungal spores are widely distributed in the atmosphere of Anyigba environment, similar findings in West Africa by Calleja et al, (1993) shows that they are widely modulated by the prevailing weather condition ( Pathologically, many fungi species identified in this work have also been associated with diseases of many agricultural crops and wild plants in Nsukka and many other places (Njokuocha, 2006). Among the diseases are loose smut of wheat, maize smut (Ustilago sp.…”

Section: Resultssupporting

confidence: 58%

“…The air quality is known to be affected by the types and concentration of these spores in the atmosphere. Although fungal spores are widely distributed in the atmosphere, investigation shows that they are widely modulated by the prevailing weather condition (Calleja et at., 1993).Fungal spores are cosmopolitan in distribution and constitute a large proportion of the airborne palynomorphs trapped in most aeropalynological studies (Njokuocha and Ukeje, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Study of Airborne Fungal Spores of Anyigba, Kogi State, Nigeria

Essien¹

2013

AJBLS

View full text Add to dashboard Cite

Airborne fungal spores of Anyigba, Dekina Local Government Area, Kogi State, Nigeria during the months of March -December, 2012 were trapped, acetolysed and analysed palynologically to determine the genera of airborne fungal spores and/or particles present in the atmosphere. A total of 9491 fungal spores were counted. The predominant spore types include those of Botryodiplodia, Curvularia, Gliomastix, Drechslera/Helminthosporium, Neurospora, Nigrospora, Pithomyces, Teliospore and Stemphylum. The presence of fungal spores in the atmosphere affirms the great influence of anthropogenic activities on the local vegetation. Analysis of variance for the various airborne fungal spores showed that there was no significant difference (P>0.05) between the various groups. This study would provide a good template that could be used to monitor the frequency and intensity of fungal allergies and various disease conditions of plants, animals and man in the surrounding Savanna environment, and provide adequate restoration and conservation measures for safety health and environmental sustainability.

show abstract

Section: Resultssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

A Study of Airborne Fungal Spores of Anyigba, Kogi State, Nigeria

Essien¹

2013

AJBLS

View full text Add to dashboard Cite

show abstract

“…Since the stamens are free and the masculine inflorescences are found at the top of the plant, wind pollination is favoured and pollen has been identified in airborne pollen samples in a wide variety of places as South Africa (Cadman and Dames, 1993), India (Malik et al, 1991;Gupta and Chanda, 1991), Florida (Jelks, 1991) and North Africa (Reille, 1992;Calleja et al, 1993). In Europe it has only been cited in Madrid {Central Spain) (Sfienz and Guti~rrez, 1983), and in the coastal areas of South Spain (Recio et al, 1995), where it was registered in two volutAuthor to whom correspondence should be addressed, Fax: 34-5-2131944; e-mail: botanica@ccuma.sci.uma.es.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric transportation of marihuana pollen from North Africa to the Southwest of Europe

Cabezudo¹,

Recio²,

Sánchez-Laulhé³

et al. 1997

Atmospheric Environment

View full text Add to dashboard Cite

Abstract---As a result of aerobiological samples taken on the Costa del Sol (S. Spain), Cannabis sativa L. (marihuana) pollen was detected from May to September 1991-1996, always sporadically and usually during the afternoons. Sampling was by two volumetric spore traps set up in Malaga and Estepona, two coastal towns approximately 90 km apart. A study of the days when this pollen was recorded points to the movement of air masses from North Africa to southern Spain. Furthermore, the isentropic air trajectories calculated for these days reinforce the possibility of the pollen originating in marihuana plantations in northern Morocco (Rif). This study demonstrates the application of aerobiology to the control of the source, quantity and phenology of the crop. © 1997 Elsevier Science Ltd

show abstract

“…Investigations of atmospheric pollen suggested that Ephedra is a weak pollen producer or that its pollen is not well transported by wind resulting in low percentages of Ephedra pollen (less than 1%) in shipborne filter contents off West Africa although Ephedra is widespread in the dunes of northwest Africa (Calleja et al 1993). Welwitschia is thought to be entomophilous and has limited potential for wide pollen dispersal (Dilcher et al 2005).…”

Section: Gnetalesmentioning

confidence: 99%

Pollen and spores from the Tendaguru Beds, Upper Jurassic and Lower Cretaceous of southeast Tanzania: palynostratigraphical and paleoecological implications

Schrank

2010

Palynology

View full text Add to dashboard Cite

Two informal sporomorph assemblage zones can be distinguished in the dinosaur-bearing Tendaguru Beds of southeast Tanzanian. The first zone, the Classopollis-Araucariacites-Shanbeipollenites Assemblage Zone, ranges from the Lower to the Upper Saurian Bed, and a mid-Oxfordian to Tithonian age is suggested based on the presence of Shanbeipollenites quadratus. The second zone, the Classopollis-Cicatricosisporites-Ruffordiaspora Assemblage Zone, is restricted in the Trigonia schwarzi Bed, which overlies the Upper Saurian Bed. The combined ranges of Cicatricosisporites hughesii, Ruffordiaspora australiensis and Trilobosporites obsitus would be consistent with a late Berriasian to Hauterivian age of this zone. This is refined further to late Valanginian to Hauterivian on the basis of already existing evidence from fauna and dinoflagellate cysts. From a phytogeographic point of view the Tendaguru locality belongs to the southern Gondwana Trisaccates Province because of the presence of trisaccate podocarpaceous pollen. The quantitative composition of the palynofloras is characterized by the dominance or abundance of pollen produced by the two conifer families Cheirolepidiaceae (Classopollis) and Araucariaceae (mainly Araucariacites). Pollen of Cheirolepidiaceae, typically xerophytic, drought-resistant, thermophilic plants, is dominant throughout the Tendaguru Beds except in parts of the Middle Saurian Bed where pollen of Araucariaceae, a presumably mesic group, becomes most abundant. Classopollis attains the highest degree of dominance in the shallow marine deposits associated with the saurian beds. This may be related to paleoecological and taphonomic factors, namely abundance of Classopollis-producing plants in low-lying coastal environments close to the lagoonlike depositional sites and transportational sorting of sporomorphs leading to a relative enrichment of small and/or anemophilous pollen. The abundance of Araucariacites in the Middle Saurian Bed suggests that araucarians existed in coastal plain environments that were stable enough to allow the growth of large trees. This open araucarian forest, which may have been a source of food for high-browsing dinosaurs, was situated landward of the cheirolepidiacean belt not far from the depositional sites. Pteridophytes and bryophytes were concentrated at moist places and around water bodies. Podocarpaceous conifers producing bisaccate and trisaccate pollen grew in local uplands, while gnetaleans related to Ephedra and Welwitschia may have been present in dry places. The palynological evidence is consistent with a seasonally dry, tropical to sub-tropical paleoclimate. Three new combinations, Equisetosporites certus (Bolkhovitina), Jugella caichigu¨ensis (Volkheimer and Quattrocchio) and Trichotomosulcites microsaccatus (Couper), are proposed, and Jugella semistriata is described as a new species.

show abstract

Atmospheric pollen content off West Africa

Cited by 38 publications

References 30 publications

A Study of Airborne Fungal Spores of Anyigba, Kogi State, Nigeria

A Study of Airborne Fungal Spores of Anyigba, Kogi State, Nigeria

Atmospheric transportation of marihuana pollen from North Africa to the Southwest of Europe

Pollen and spores from the Tendaguru Beds, Upper Jurassic and Lower Cretaceous of southeast Tanzania: palynostratigraphical and paleoecological implications

Contact Info

Product

Resources

About