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1. A 10-year survey of allergenic airborne pollen in the city of Porto (Portugal)

Author:
H. Ribeiro; I. Abreu
Source:
Aerobiologia 2014 v.30 no.3 pp. 333-344
ISSN:
0393-5965
Subject:
Acer; Alnus; Betula; Castanea; Cupressaceae; Myrtaceae; Olea europaea; Pinaceae; Plantago; Platanus; Poaceae; Populus; Quercus; Urticaceae; allergenicity; flowering; grasses; meteorological parameters; pollen; spring; summer; surveys; trees; weeds; Portugal
Abstract:
... Airborne pollen calendars are useful to estimate the flowering season of the different plants as well as to indicate the allergenic potential present in the atmosphere at a given time. In this study, it is presented a 10-year survey of the atmospheric concentration of allergenic pollen types. Airborne pollen was performed, from 2003 to 2012, using a 7-day Hirst-type volumetric trap. The interannua ...
DOI:
10.1007/s10453-014-9331-9

2. A 130 0-year history of vegetation and environmental change at Jan Lake, east-central Alaska

Author:
Lisa J. Carlsonl; Bruce P. Finney
Source:
Holocene v.14 no.6 pp. 818-827
ISSN:
0959-6836
Subject:
Alnus; Betula papyrifera; Picea glauca; Picea mariana; Populus; boreal forests; carbon; fossils; lakes; pollen; radiocarbon dating; radionuclides; sediments; shrubs; stomata; trees; tundra; Alaska; Yukon Territory
Abstract:
... Pollen, stomates and macrofossils were analysed from a 3.63 m sediment core at Jan Lake, eastcentral Alaska, in order to improve spatial resolution of patterns of vegetation history in this region. The chronology was based on 19 AMS ¹⁴C dates on plant macrofossils and concentrated pollen. Zone Jan-I (12400-11 600 yr BP) records a unique herb-tundra pollen assemblage, particularly high in Chenopodi ...
DOI:
10.1191/0959683604hl762rp

3. A 30,000-year pollen record from Mire Kupena, Western Rhodopes Mountains (south Bulgaria)

Author:
Spassimir Tonkov; Maria Lazarova; Elissaveta Bozilova; Dimiter Ivanov; Ian Snowball
Source:
Review of palaeobotany and palynology 2014 v.209 pp. 41-51
ISSN:
0034-6667
Subject:
Abies; Alnus; Amaranthaceae; Artemisia; Betula; Carpinus betulus; Carpinus orientalis; Corylus; Fagus; Holocene epoch; Juniperus; Ostrya; Picea; Pinus peuce; Pinus sylvestris; Quercus; Tilia; Ulmus; afforestation; climate change; cold tolerance; deciduous forests; lakes; landscapes; lowlands; mountains; paleobotany; palynology; pollen; radiocarbon dating; sediments; shrublands; steppes; topography; Bulgaria; Greece
Abstract:
... A palynological study was performed on a 2m thick sediment sequence recovered from Mire Kupena (1356m), a former lake in the Western Rhodopes Mountains (south Bulgaria) and supported by radiocarbon dating. The record extends back to ca. 30,000cal. yrs. BP (Middle Pleniglacial) when the study area was occupied by wooded steppe composed of Pinus sp., Pinus peuce, some Betula, Juniperus, and cold-tol ...
DOI:
10.1016/j.revpalbo.2014.06.002

4. A Comparison of Multiple Allergen Simultaneous Tests Using Allergen-Specific IgE Concentration and Intradermal Skin Tests in Atopic Horses With Pollen Allergy

Author:
Piotr Wilkołek; Marcin Szczepanik; Beata Rodzik; Wiesław Sitkowski; Michał Pluta; Iwona Taszkun; Marcin Gołyński
Source:
Journal of equine veterinary science 2020 v.90 pp. 102992
ISSN:
0737-0806
Subject:
Alnus; Betula; Brassica napus; Corylus; Plantago lanceolata; Secale cereale; allergens; antibodies; disease diagnosis; grasses; hay fever; horses; immunoglobulin E; pollen; pollen season; rye; skin tests; trees; weeds
Abstract:
... Intradermal tests (IDTs) and measurement of specific immunoglobulin E class (sIgE) levels in sera are the most common and reliable methods used in allergological clinical practice. The purpose of this study was to explore the sensitization of pollen allergy in atopic horses with pollinosis and to assess the diagnostic value of the multiple allergen simultaneous tests (MASTs) compared with that of ...
DOI:
10.1016/j.jevs.2020.102992

5. A Landscape Reconstruction Algorithm and pedoanthracological data reveal Late Holocene woodland history in the lowlands of the NE Czech Republic

Author:
Vojtěch Abraham; Jan Novák; Petra Houfková; Libor Petr; Lydie Dudová
Source:
Review of palaeobotany and palynology 2017 v.244 pp. 54-64
ISSN:
0034-6667
Subject:
Abies; Alnus; Fagus; Fraxinus; Holocene epoch; Quercus; Tilia; algorithms; charcoal; forestry; forests; landscapes; lowlands; mountains; pollen; woodlands; Czech Republic
Abstract:
... We aim to obtain composition of the regional vegetation from the pollen record in the high mountains, to use it in the interpretation of the pollen record from the lowlands via a Landscape Reconstruction Algorithm (LRA), and to then compare the pedoanthracological data with the LRA result based on dissimilarity coefficient.We used five pollen sequences from summits of the Eastern Sudetes (NE Czech ...
DOI:
10.1016/j.revpalbo.2017.04.009

6. A Statistical Model to Detect Asymptomatic Infectious Individuals with an Application in the Phytophthora alni-Induced Alder Decline

Author:
Elegbede, Chabi Fabrice; Pierrat, Jean-Claude; Aguayo, Jaime; Husson, Claude; Halkett, Fabien; Marcais, Benoit
Source:
Phytopathology 2010 v.100 no.11 pp. 1262-1269
ISSN:
0031-949X
Subject:
root diseases; mathematical models; disease detection; forest decline; forest trees; Alnus; Phytophthora; signs and symptoms (plants); fungal diseases of plants; dead wood; inoculum density; risk factors; tree diseases; plant pathogenic fungi; statistical analysis; disease surveillance; disease incidence; France
Abstract:
... In some diseases--in particular, tree root infection--stages of infection and inoculum production level and timing are not readily observable because of uncertainty or time lags in symptom appearance. Here, we pose a criterion, based on relative hazard of disease symptoms, to discriminate between healthy and asymptomatic infected individuals. We design a statistical procedure to estimate the crite ...
DOI:
10.1094/PHYTO-05-10-0140

7. A class I hemoglobin gene from Alnus firma functions in symbiotic and nonsymbiotic tissues to detoxify nitric oxide

Author:
Sasakura, F.; Uchiumi, T.; Shimoda, Y.; Suzuki, A.; Takenouchi, K.; Higashi, S.; Abe, M.
Source:
Molecular plant-microbe interactions 2006 v.19 no.4 pp. 441-450
ISSN:
0894-0282
Subject:
Alnus; root nodules; plant proteins; symbiosis; Frankia; DNA libraries; complementary DNA; sequence analysis; gene expression regulation; nitrogenase; nucleotide sequences
DOI:
10.1094/MPMI-19-0441

8. A comparison of sedimentary DNA and pollen from lake sediments in recording vegetation composition at the Siberian treeline

Author:
Bastian Niemeyer; Laura S. Epp; Kathleen R. Stoof‐Leichsenring; Luidmila A. Pestryakova; Ulrike Herzschuh
Source:
Molecular ecology resources 2017 v.17 no.6 pp. e46
ISSN:
1755-098X
Subject:
Alnus; Betula; DNA; DNA barcoding; Larix; Salix; botanical composition; forests; lakes; nucleotide sequences; pollen; pollen analysis; principal component analysis; sediments; surveys; treeline; tundra; Siberia
Abstract:
... Reliable information on past and present vegetation is important to project future changes, especially for rapidly transitioning areas such as the boreal treeline. To study past vegetation, pollen analysis is common, while current vegetation is usually assessed by field surveys. Application of detailed sedimentary DNA (sedDNA) records has the potential to enhance our understanding of vegetation ch ...
DOI:
10.1111/1755-0998.12689

9. A comprehensive investigation of anti-inflammatory diarylheptanoids from the leaves of Alnus formosana

Author:
Yi-Chun Lai; Chien-Kuang Chen; Wan-Wan Lin; Shoei-Sheng Lee
Source:
Phytochemistry 2012 v.73 no. pp. 84-94
ISSN:
0031-9422
Subject:
Alnus; anti-inflammatory activity; cytotoxicity; inhibitory concentration 50; leaves; screening
Abstract:
... This study was aimed to investigate thoroughly the diarylheptanoids in the n-BuOH soluble fraction of leaves of Alnus formosana in order to examine their anti-inflammatory activities. The application of HPLC-SPE-NMR as a preliminary chemical screening led to characterization of eleven compounds. Further separation resulted in isolation of 28 compounds, of which 10 diarylheptanoids and 2-coumaroylx ...
DOI:
10.1016/j.phytochem.2011.02.008
PubMed:
21388646

10. A heuristic classification of woody plants based on contrasting shade and drought strategies

Author:
Liang Wei; Chonggang Xu; Steven Jansen; Hang Zhou; Bradley O Christoffersen; William T Pockman; Richard S Middleton; John D Marshall; Nate G McDowell; David Whitehead
Source:
Tree physiology 2019 v.39 no.5 pp. 767-781
ISSN:
1758-4469
Subject:
Abies; Acer; Alnus; Betula; Juniperus; Picea; Pinus; Populus; Prunus; Salix; cluster analysis; drought; dry environmental conditions; ecological function; embolism; habitats; models; prediction; shade tolerance; species diversity; tree physiology; vegetation; woody plants; xylem
Abstract:
... Woody plants vary in their adaptations to drought and shade. For a better prediction of vegetation responses to drought and shade within dynamic global vegetation models, it is critical to group species into functional types with similar adaptations. One of the key challenges is that the adaptations are generally determined by a large number of plant traits that may not be available for a large nu ...
DOI:
10.1093/treephys/tpy146

11. A lacustrine pollen record from near altitudinal forest limit, Upper Kolyma Region, northeastern Siberia

Author:
Patricia M. Anderson; Anatoly V. Lozhkin; Berta V. Belaya; Olga Yu. Glushkova; Linda B. Brubaker
Source:
Holocene 1997 v.7 no.3 pp. 331-335
ISSN:
0959-6836
Subject:
Alnus; Betula; Larix gmelinii var. gmelinii; Pinus pumila; altitude; autumn; forests; highlands; lakes; mountains; palynology; pollen; sediments; shrubs; snow; summer; temperature; treeline; trees; tundra; understory; watersheds; winter; Siberia
Abstract:
... A sediment core that spans the last c. 15 000 yr BP was raised from Elgennya Lake (62°05'N 149°00'E, 1040 m) which is located near the altitudinal forest limit in the western Annachag Mountains of the Upper Kolyma region, northeastern Siberia. Palynological data indicate the presence of a relatively unpro ductive herb-Salix tundra during full-glacial times. Although Betula shrubs first appeared in ...
DOI:
10.1177/095968369700700309

12. A mild Younger Dryas recorded in southeastern Alaska

Author:
Paul S. Wilcox; Sarah J. Fowell; James F. Baichtal
Source:
Arctic, antarctic, and alpine research 2020 v.52 no.1 pp. 236-247
ISSN:
1938-4246
Subject:
Alnus; Picea sitchensis; Pinus; Tsuga mertensiana; ferns and fern allies; glaciation; palynology; pollen; research; temperature; watersheds; Alaska; Antarctic region; Arctic region
Abstract:
... Palynological and sedimentological analyses of lacustrine cores from Baker Island, located in southeastern Alaska’s Alexander Archipelago, indicate that the beginning of the Younger Dryas chronozone, between approximately 12,900 cal yr BP and approximately 12,600 cal yr BP, was cooler and drier than modern conditions, based on decreases in the percentages of Pinus (pine) and Tsuga mertensiana (mou ...
DOI:
10.1080/15230430.2020.1760504

13. A multi-proxy record of the Last Glacial Maximum and last 14,500 years of paleoenvironmental change at Lone Spruce Pond, southwestern Alaska

Author:
Darrell S. Kaufman; Yarrow Axford; R. Scott Anderson; Scott F. Lamoureux; Daniel E. Schindler; Ian R. Walker; Al Werner
Source:
Journal of paleolimnology 2012 v.48 no.1 pp. 9-26
ISSN:
0921-2728
Subject:
Alnus; Bacillariophyta; Chaoboridae; Chironomidae; Cladocera; air temperature; carbon; carbon dioxide; carbon nitrogen ratio; denitrification; ice; isotopes; lakes; midges; nitrogen; organic matter; phytoplankton; pollen; sediments; shrubs; silica; soil; surface water level; Alaska
Abstract:
... Sediment cores from Lone Spruce Pond (60.007°N, 159.143°W), southwestern Alaska, record paleoenvironmental changes during the global Last Glacial Maximum (LGM), and during the last 14,500 calendar years BP (14.5 cal ka). We analyzed the abundance of organic matter, biogenic silica, carbon, and nitrogen, and the isotope ratios of C and N, magnetic susceptibility, and grain-size distribution of ...
DOI:
10.1007/s10933-012-9607-4

14. A new species and a new record of Diatrypaceae from Panama

Author:
Santiago Chacón; Dorian Dörge; Jascha Weisenborn; Meike Piepenbring
Source:
Mycologia 2013 v.105 no.3 pp. 681-688
ISSN:
1557-2536
Subject:
Alnus acuminata; Diatrype; Eutypella; Guadua angustifolia; ascospores; branches; fungi; internal transcribed spacers; new species; ribosomal DNA; scientific illustration; taxon descriptions; Bermuda; Panama
Abstract:
... Based on opportunistic collections of fungi in Panama, two species of Diatrypaceae (Xylariales) are described and illustrated. One of them, Eutypella semicircularis, found twice on branches probably belonging to Alnus acuminata, is new to science. It differs from known species of Eutypella and Peroneutypa with strongly allantoid or semicircular ascospores, such as E. crustata and P. curvispora, in ...
DOI:
10.3852/12-131

15. A nodule-specific dicarboxylate transporter from alder is a member of the peptide transporter family

Author:
Jeong, J.; Suh, S.; Guan, C.; Tsay, Y.F.; Moran, N.; Oh, C.J.; An, C.S.; Demchenko, K.N.; Pawlowski, K.; Lee, Y.
Source:
Plant physiology 2004 v.134 no.3 pp. 969-978
ISSN:
0032-0889
Subject:
nitrogen-fixing bacteria; Xenopus laevis; Alnus glutinosa; Western blotting; malic acid; plant proteins; tissue distribution; Escherichia coli; messenger RNA; DNA libraries; succinic acid; membrane potential; complementary DNA; transporters; root nodules; Frankia; oocytes; Saccharomyces cerevisiae; oxaloacetic acid; genetic complementation; fumaric acid
Abstract:
... Alder (Alnus glutinosa) and more than 200 angiosperms that encompass 24 genera are collectively called actinorhizal plants. These plants form a symbiotic relationship with the nitrogen-fixing actinomycete Frankia strain HFPArI3. The plants provide the bacteria with carbon sources in exchange for fixed nitrogen, but this metabolite exchange in actinorhizal nodules has not been well defined. We isol ...
DOI:
10.1104/pp.103.032102
PubMed:
15001700
PubMed Central:
PMC389920

16. A novel hybrid with the nuclear background of Phytophthora alni subsp. alni exhibits a mitochondrial DNA profile characteristic of P. alni subsp. uniformis

Author:
J. Bakonyi; Z. Á. Nagy; T. Érsek
Source:
Acta phytopathologica et entomologica Hungarica 2007 v.42 no.1 pp. 1-7
ISSN:
0238-1249
Subject:
Alnus; DNA primers; Phytophthora; alleles; glucose-6-phosphate isomerase; hybridization; hybrids; isozymes; loci; malate dehydrogenase; mitochondrial DNA; phenotype; random amplified polymorphic DNA technique; root crown; Hungary
Abstract:
... Phytophthora alni is a species hybrid that causes a destructive root and collar rot disease of alders throughout Europe. Its subspecies, P. alni subsp. alni (Paa), P. alni subsp. uniformis (Pau) and P. alni subsp. multiformis (Pam) can be distinguished on the basis of phenotypic and genotypic traits. In this study, we report evidence of an unusual genomic combination of two subspecies occurring in ...
DOI:
10.1556/APhyt.42.2007.1.1

17. A palaeoenvironmental reconstruction (based on palaeobotanical data and diatoms) of the Middle Pleistocene elephant (Palaeoloxodon antiquus) butchery site at Marathousa, Megalopolis, Greece

Author:
M.H. Field; M. Ntinou; G. Tsartsidou; D. van Berge Henegouwen; J. Risberg; V. Tourloukis; N. Thompson; P. Karkanas; E. Panagopoulou; K. Harvati
Source:
Quaternary international 2018 v.497 pp. 108-122
ISSN:
1040-6182
Subject:
Alnus; Arecaceae; Bacillariophyceae; Brasenia schreberi; Salix; aquatic plants; butchering; climatic factors; lacustrine sediments; lignite; paleoecology; sediment deposition; skeleton; swamps; trees; water table; wood; Greece
Abstract:
... Exposures of Middle Pleistocene lacustrine sediments at the margins of an open-cast lignite mine at Marathousa near Megalopolis, western Arcadia, Greece yielded the partial remains of a Palaeoloxodon antiquus skeleton which exhibited signs of being butchered. Sedimentation occurred between ca. 400 and 480 ka. Lithic artefacts were found in close spatial and stratigraphic association with the eleph ...
DOI:
10.1016/j.quaint.2018.06.014

18. A possible middle Pleistocene seasonal deposit in Taipei Basin, Taiwan, inferred from pollen study

Author:
Ping-Mei Liew; Kai-Zheng Du; Ting-Wei Lin; I. Ting; Shu-Yue Huang
Source:
Quaternary international 2014 v.349 pp. 127-134
ISSN:
1040-6182
Subject:
Alnus; Castanopsis; El Nino; Picea; Pinus; Poaceae; Quercus; Tsuga; ancient lakes; atmospheric precipitation; basins; glaciation; illite; pollen; quartz; sediments; summer; Taiwan
Abstract:
... Laminated sediments in the Taipei Basin which are tentatively assigned to the antepenultimate glacial period were studied to discern the paleoclimatic significance. Analyses of multi proxies including pollen, mineralogy, grain size, and loss on ignition (LOI) were carried out on three 50 cm thick intervals of a 23.7 m thick laminated section of the Hsinchuan Core, western Taipei. The couplets are ...
DOI:
10.1016/j.quaint.2013.08.056

19. A revision of the Alpova diplophloeus complex in North America

Author:
Jeremy Hayward; Samuel G. Tourtellot; Thomas R. Horton
Source:
Mycologia 2014 v.106 no.4 pp. 846-855
ISSN:
1557-2536
Subject:
Alnus; Alpova; Rhizopogon; basidiomata; ectomycorrhizae; new species; polyphyly; North America
Abstract:
... Alpova diplophloeus (Boletales, Paxillaceae) is the only currently recognized Alpova in North America with a brownish peridium, large gleba chambers and which forms ectomycorrhizas with Alnus. However, A. diplophloeus as currently circumscribed is a polyphyletic species, with at least three distinct genetic entities. Using a combination of molecular and morphological characters, we examined the ty ...
DOI:
10.3852/13-360

20. A short-term climate oscillation during the Holsteinian interglacial (MIS 11c): An analogy to the 8.2ka climatic event?

Author:
Andreas Koutsodendris; Jörg Pross; Ulrich C. Müller; Achim Brauer; William J. Fletcher; Norbert Kühl; Emiliya Kirilova; Florence T.M. Verhagen; Andreas Lücke; André F. Lotter
Source:
Global and planetary change 2012 v.92-93 no. pp. 224-235
ISSN:
0921-8181
Subject:
Alnus; Bacillariophyceae; Betula; Pinus; aquatic ecosystems; climate; climate change; cold; herbs; isotopes; lakes; latitude; oxygen; pollen; sediments; silica; snowmelt; solar radiation; summer; temperature; terrestrial ecosystems; trees; vegetation; winter; British Isles; Germany; Poland
Abstract:
... To gain insights into the mechanisms of abrupt climate change within interglacials, we have examined the characteristics and spatial extent of a prominent, climatically induced vegetation setback during the Holsteinian interglacial (Marine Isotope Stage 11c). Based on analyses of pollen and varves of lake sediments from Dethlingen (northern Germany), this climatic oscillation, here termed the “Old ...
DOI:
10.1016/j.gloplacha.2012.05.011

21. A systematic review of threshold values of pollen concentrations for symptoms of allergy

Author:
Nadine Steckling-Muschack; Hanna Mertes; Isabella Mittermeier; Paul Schutzmeier; Jana Becker; Karl-Christian Bergmann; Stephan Böse-O′Reilly; Jeroen Buters; Athanasios Damialis; Joachim Heinrich; Michael Kabesch; Dennis Nowak; Sandra Walser-Reichenbach; Alisa Weinberger; Mihai Zamfir; Caroline Herr; Susanne Kutzora; Stefanie Heinze
Source:
Aerobiologia 2021 v.37 no.3 pp. 395-424
ISSN:
0393-5965
Subject:
Alnus; Ambrosia; Artemisia vulgaris; Betula; Corylus; Fraxinus; allergens; drugs; gender; hypersensitivity; pollen; risk; systematic review
Abstract:
... Pollen threshold values used in public warning systems are intended to inform people of the risk of developing allergy symptoms. However, there is no consensus about which pollen concentrations provoke allergy symptoms. The aim of this systematic review was the evaluation of studies investigating the relationship between pollen concentrations (alder, ash, birch, hazel, mugwort and ragweed) and the ...
DOI:
10.1007/s10453-021-09709-4

22. Abrupt and consistent responses of aquatic and terrestrial ecosystems to the 8200 cal. yr cold event: a lacustrine record from Lake Arapisto, Finland

Author:
Kaarina Sarmaja-Korjonen; Heikki Seppä
Source:
Holocene 2007 v.17 no.4 pp. 457-467
ISSN:
0959-6836
Subject:
Alnus; Cladocera; Corylus; Ulmus; aquatic ecosystems; climate change; cold; lakes; plankton; pollen; reproduction; sediments; temperature; terrestrial ecosystems; vegetation; winter; Finland
Abstract:
... A 8400—7700 yr cal. BP section of the sediments of a small lake in southern Finland was studied by high-resolution pollen and cladoceran analyses to examine the response of terrestrial and aquatic ecosystems to the 8200 cal. yr BP cold event. Furthermore, a pollen-based T ₐₙₙ reconstruction and proportions of chydorid ephippia were used to determine changes in temperature and in the length of open ...
DOI:
10.1177/0959683607077020

23. Actinorhizal symbioses and their N2 fixation

Author:
KERSTIN HUSS‐DANELL
Source:
new phytologist 1997 v.136 no.3 pp. 375-405
ISSN:
0028-646X
Subject:
ferredoxin hydrogenase; ammonia; Alnus; glutamate-ammonia ligase; carbohydrate metabolism; nitrogen fixation; diffusion; phosphates; oxygen; infection; soil bacteria; root nodules; Frankia; enzyme activity; sporulation; symbiosis; nitrogen; root hairs; nitrogenase
Abstract:
... More than 200 angiosperms, distributed in 25 genera, develop root nodule symbioses (actinorhizas) with soil bacteria of the actinomycetous genus Frankia. Although most soils studied contain infective Frankia, cultured strains are available only after isolation from root nodules. Frankia infects roots via root hairs in some hosts or via intercellular penetration in others. The nodule originates in ...
DOI:
10.1046/j.1469-8137.1997.00755.x

24. After the fire: the end of a house life-cycle at the Iron Age site of Nabás (North-western Iberia)

Author:
María Martín-Seijo; Andrés Teira-Brión; Andrés Currás; Carlos Rodríguez-Rellán
Source:
Vegetation history and archaeobotany 2020 v.29 no.4 pp. 427-446
ISSN:
0939-6314
Subject:
Alnus; Arundo; Betula; Corylus avellana; Ericaceae; Fabaceae; Frangula alnus; Phragmites; Populus; Quercus; Rosaceae; Salix; Setaria italica; Ulmus; archaeobotany; chaff; charcoal; hyphae; manufacturing; occupations; pollen analysis; Iberian Peninsula
Abstract:
... The existence of a fire event at the Iron Age hillfort of Nabás, which is located on the southern bank of the Ría de Vigo (Galicia, NW of the Iberian Peninsula), favoured an extraordinary preservation of carbonised plant remains and offered an unusual opportunity to focus our research on the study of the final episode of a house life-cycle. The archaeobotanical approach focused on perishable mater ...
DOI:
10.1007/s00334-019-00750-5

25. Airborne pollen grains in Yalova, Turkey, 2004

Author:
Mustafa Altunoglu; Adem Bicakci; Sevcan Celenk; Yakup Canitez; Hulusi Malyer; Nihat Sapan
Source:
Biologia 2008 v.63 no.5 pp. 658-663
ISSN:
1336-9563
Subject:
Acer; Alnus; Artemisia; Castanea; Corylus; Cupressaceae; Fagus; Olea; Pinus; Plantago; Platanus; Poaceae; Quercus; Taxaceae; pollen; Turkey (country)
Abstract:
... In this study, airborne pollen grains of Yalova province were investigated using VPSS 2000 from January to December 2004. During studying period, a total of 22409 pollen grains/m3 which belonged to 46 taxa and 74 unidentified pollen grains were recorded. From the identified taxa, 26 belong to arboreal and 20 to non-arboreal plants. Total pollen grains consist of 80.50% arboreal, 19.17% non-arborea ...
DOI:
10.2478/s11756-008-0118-8

26. Airborne pollen sampling in Toledo, Central Spain

Author:
García-Mozo, Herminia; Pérez-Badia, Rosa; Fernández-González, Federico; Galán, Carmen
Source:
Aerobiologia 2006 v.22 no.1 pp. 55-66
ISSN:
0393-5965
Subject:
Alnus; Amaranthaceae; Artemisia; Castanea; Cupressaceae; Fraxinus; Olea; Pinus; Platanus; Poaceae; Populus; Quercus; Salix; Tamarix; Ulmus; Urticaceae; air; crops; flowering; humidity; monitoring; pollen; pollination; rain; spring; temperature; tourists; trees; Spain
Abstract:
... Toledo is one of the main tourist spots of Spain, attracting around two million visitors per year. Its geographical situation in the vast and scarcely monitored Region of Castilla La Mancha and the high number of tourists (especially in the spring) has resulted in the Spanish Aerobiology Network (REA) making this city a major study objective. Air monitoring studies carried out using REA sampling p ...
DOI:
10.1007/s10453-005-9015-6

27. Airborne pollen spectrum and hay fever type prevalence in Vinnitsa, central Ukraine

Author:
Victoria Valeriivna Rodinkova
Source:
Acta agrobotanica 2015 v.68 no.4 pp. 383-389
ISSN:
2300-357X
Subject:
Acer; Alnus; Amaranthaceae; Ambrosia; Artemisia vulgaris; Betula; Carpinus; Fraxinus; Juglans; Pinus; Poaceae; Polygonaceae; Populus; Quercus; Salix; Urtica; adults; air; allergens; children; grasses; hay fever; herbaceous plants; patients; pollen; woody plants; Ukraine
Abstract:
... The article deals with the main pollen spectrum in relation to patients’ sensitivity determined in the ambient air of Vinnitsa city located in central Ukraine. The study performed by gravimetric sampling in the years 1999–2000 and by volumetric sampling in the years 2009–2014 showed that Urtica, Betula, Pinus, Alnus, Fraxinus, Ambrosia, Artemisia, Juglans, Carpinus, Populus, Quercus, Acer, Salix, ...
DOI:
10.5586/aa.2015.037

28. Alder cover drives nitrogen availability in Kenai lowland headwater streams, Alaska

Author:
Rebecca S. Shaftel; Ryan S. King; Jeffrey A. Back
Source:
Biogeochemistry 2012 v.107 no.1-3 pp. 135-148
ISSN:
0168-2563
Subject:
Alnus; Salmonidae; atmospheric precipitation; ecosystems; growing season; losses from soil; models; nitrate nitrogen; nitrates; nitrogen; nitrogen fixation; nitrogen oxides; nitrogen-fixing trees; nutrients; salmon; seasonal variation; spring; streams; temperature; topographic slope; vegetation cover; watersheds; Alaska
Abstract:
... Terrestrial sources of nitrogen (N), particularly N-fixing alder, may be important for sustaining production in headwater streams that typically lack substantial subsidies of marine-derived nutrients from spawning salmon yet support upstream-dispersing juvenile salmonids. However, other physiographic characteristics, such as watershed slope and topographic wetness, also control transport of nutrie ...
DOI:
10.1007/s10533-010-9541-3

29. Alder pollen concentrations in the air during snowfall

Author:
I. Kasprzyk; K. Borycka
Source:
International journal of biometeorology 2019 v.63 no.12 pp. 1651-1658
ISSN:
0020-7128
Subject:
Alnus; air; bioclimatology; databases; hypersensitivity; pollen; snow; temperature; Belarus; Ukraine
Abstract:
... The focus of our study was airborne alder pollen because it is one of the main causes of inhalant allergies in many countries in the Northern Hemisphere. The main research setback was pollen concentrations during snowfall. Analyses from a 21-year database showed that the hourly patterns of occurrence of airborne Alnus pollen during snowfall differ. Snowfall can cause a decrease in pollen concentra ...
DOI:
10.1007/s00484-019-01781-3

30. Alder pollen in Finland ripens after a short exposure to warm days in early spring, showing biennial variation in the onset of pollen ripening

Author:
Tapio Linkosalo; Eric Le Tortorec; Marje Prank; Anna-Mari Pessi; Annika Saarto
Source:
Agricultural and forest meteorology 2017 v.247 pp. 408-413
ISSN:
0168-1923
Subject:
air; data collection; heat sums; humidity; models; pollen; prediction; ripening; spore traps; spring; wind speed; Finland
Abstract:
... We developed a temperature sum model to predict the daily pollen release of alder, based on pollen data collected with pollen traps at seven locations in Finland over the years 2000–2014. We estimated the model parameters by minimizing the sum of squared errors (SSE) of the model, with weights that put more weight on binary recognition of daily presence or absence of pollen. The model results sugg ...
DOI:
10.1016/j.agrformet.2017.08.030

31. Alnus betulifolia (Betulaceae), a New Species from Eastern China

Author:
Dan-Dan Ma; Gen-You Li; Zheng-Hai Chen; Wen-Yuan Xie
Source:
Annales botanici Fennici 2019 v.56 no.4-6 pp. 247-251
ISSN:
0003-3847
Subject:
Alnus; branches; females; inflorescences; males; new species; plant taxonomy; scientific illustration; shrubs; taxon descriptions; China
Abstract:
... Alnus betulifolia G.Y. Li, Z.H. Chen & D.D. Ma (Betulaceae), a new species of Betulaceae from Zhejiang, eastern China, is described and illustrated. It is similar to the Japanese endemic A. firma, but differs from it by being a shrub, often 2–3 m tall, and by having male inflorescences single and compact, and female inflorescences usually single or double in lateral branches above male inflorescen ...
DOI:
10.5735/085.056.0409

32. Alnus shrub expansion increases evapotranspiration in the Swiss Alps

Author:
Thijs van den Bergh; Christian Körner; Erika Hiltbrunner
Source:
Regional environmental change 2018 v.18 no.5 pp. 1375-1385
ISSN:
1436-3798
Subject:
Alnus; altitude; canopy; cooling; evapotranspiration; grasslands; growing season; lysimeters; runoff; sap flow; shrublands; shrubs; surface roughness; surface temperature; thermography; transpiration; treeline; understory; vapor pressure; watersheds; Alps region; Switzerland
Abstract:
... Shrub encroachment is one of the main consequences of abandonment of montane grassland. Higher surface roughness of shrubs leads to stronger aerodynamic coupling. This should increase evapotranspiration (ET), but lower surface temperatures (due to higher ET and reduced aerodynamic resistance) could counter this effect. We explored this question by employing weighable lysimeters in adjacent grass- ...
DOI:
10.1007/s10113-017-1246-x

33. Alnus sibirica encroachment promotes dissolved organic carbon biodegradation in a boreal peatland

Author:
Yang Zhang; Fu-Xi Shi; Rong Mao
Source:
Science of the total environment 2019 v.695 pp. 133882
ISSN:
0048-9697
Subject:
Alnus; absorbance; ammonium nitrogen; dissolved inorganic nitrogen; dissolved organic carbon; ecosystems; humification; islands; losses from soil; nitrate nitrogen; nitrogen; nitrogen fixation; peat; peatlands; stoichiometry; trees; woody plants; China
Abstract:
... Symbiotic dinitrogen (N2)-fixing trees have been expanding to boreal peatlands, yet its influence on dissolved organic carbon (DOC) biodegradation is unclear. Here, we measured DOC, ammonium‑nitrogen (NH4+-N), nitrate‑nitrogen (NO3−-N), dissolved inorganic nitrogen (DIN), and dissolved total nitrogen (DTN) concentrations, specific ultraviolet absorbance at 254 nm (SUVA254), and humification index ...
DOI:
10.1016/j.scitotenv.2019.133882

34. Alnus subgenus Alnus in the Eocene of western North America based on leaves, associated catkins, pollen, and fruits

Author:
Xiaoyan Liu; Steven R. Manchester; Jianhua Jin
Source:
American journal of botany 2014 v.101 no.11 pp. 1925-1943
ISSN:
0002-9122
Subject:
Alnus; extinct species; fossils; fruiting; fruits; inflorescences; leaves; phylogeny; phytogeography; pollen; pollen flow; scanning electron microscopy; Asia; Europe; Oregon
Abstract:
... • Premise of the study: The fossil record of alder (Alnus) is well known in the Cenozoic deposits throughout the northern hemisphere, based on numerous reports of the distinctive pollen, cone-like infructescences, staminate inflorescences, and leaves. However, our understanding of the systematic position of these fossils relative to the modern phylogeny of the genus has been limited because most f ...
DOI:
10.3732/ajb.1400228
PubMed:
25366858

35. Alnus × spaethii pollen can cause allergies already at Christmas

Author:
Regula Gehrig; Markus Gassner; Peter Schmid-Grendelmeier
Source:
Aerobiologia 2015 v.31 no.2 pp. 239-247
ISSN:
0393-5965
Subject:
Alnus; air pollution; allergens; climate; flowering; hybrids; hypersensitivity; introduced plants; planting; pollen; spore traps; towns; trees; Switzerland
Abstract:
... Alnus × spaethii is a hybrid alder with the parent species A. japonica and A. subcordata. It is known for both its tolerance for urban climate conditions and enhanced air pollution concentrations and hence often figures on recommended tree guidance lists in towns. At the MeteoSwiss pollen station of Buchs (Switzerland), unusual early peaks of alder pollen already in December or January have been o ...
DOI:
10.1007/s10453-014-9360-4

36. Altitudinal patterns of wind transport and deposition of Yungas tree pollen in northwestern Argentina: Implications for interpreting the Quaternary fossil record

Author:
Gonzalo R. Torres; Claudio F. Pérez; Liliana C. Lupo
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.520 pp. 66-77
ISSN:
0031-0182
Subject:
Alnus; Anadenanthera; Celtis; Juglans; Myrtaceae; altitude; atmospheric circulation; climate; climate change; flowering; fossils; grasslands; highlands; montane forests; pollen; rain forests; sediments; treeline; trees; wind; Andes region; Argentina
Abstract:
... The presence of pollen from Yungas tree species in fossil sequences located above the tree-line has led to alternative interpretations of past climate changes in tropical and subtropical Andes. We studied atmospheric and surface pollen deposition rates of Yungas trees along an altitudinal gradient (1700–3800 m a.s.l.) to understand the role of local wind patterns in modern pollen transport to moun ...
DOI:
10.1016/j.palaeo.2019.01.013

37. An 11,000‐yr record of diatom assemblage responses to climate and terrestrial vegetation changes, southwestern Québec

Author:
Karen Neil; Konrad Gajewski
Source:
Ecosphere 2018 v.9 no.11 pp. e02505
ISSN:
2150-8925
Subject:
Alnus; Betula; Fagus; Fragilaria; Holocene epoch; Tsuga; climate; cooling; dry environmental conditions; ecological succession; forests; hardwood; hydrochemistry; lakes; landscapes; ontogeny; palynology; plankton; principal component analysis; sediments; shade tolerance; soil; temperature; terrestrial ecosystems; trees; watersheds; woodlands; Quebec
Abstract:
... A high‐resolution diatom sequence was developed from continuously laminated lake sediments in southwestern Québec, which spanned the Holocene (~11,000 yr). General and species‐specific changes in the diatom record were synchronous with patterns of vegetation succession inferred from regional palynological studies, demonstrating significant influences of terrestrial ecosystems on lake water chemist ...
DOI:
10.1002/ecs2.2505

38. An Analysis of Elemental Concentrations in Vegetation Bordering a Southeastern United States Coastal Plain Stream

Author:
Charels T. Garten Jr.; John B. Gentry; Rebecca R. Sharitz
Source:
Ecology 1977 v.58 no.5 pp. 979-992
ISSN:
0012-9658
Subject:
Alnus; Andropogon; Morella cerifera; Polygonum; Sagittaria latifolia; Salix nigra; Scirpus; alluvial soils; aluminum; autumn; boron; calcium; coastal plains; copper; discriminant analysis; elemental composition; floodplains; interspecific variation; leaves; magnesium; molybdenum; potassium; principal component analysis; roots; seasonal variation; seeds; sodium; spring; stems; streams; strontium; vegetation; woody plants; zinc; South Carolina
Abstract:
... Mineral element concentrations were measured in the component parts of different species of plants from a floodplain community along a coastal plain stream in South Carolina, USA. Frequency distributions of concentrations of mineral elements were positively skewed, although distributions of P, K, Ca and B concentrations tended to be less skewed than those of some trace elements (Na, Al, Cs—137). S ...
DOI:
10.2307/1936919

39. An evaluation of Alnus (Alder) germplasm in five diverse nonagricultural environments in Minnesota (USA)

Author:
Kusch, W.; Tschirner, U.; McNamara, S.; David, A.J.; Current, D.; Hokanson, S.C.
Source:
Acta horticulturae 2013 no.990 pp. 293-301
ISSN:
0567-7572
Subject:
Alnus; Populus; Salix; aboveground biomass; biofuels; biomass production; climate; correlation; feedstocks; food production; gasoline; germplasm; nitrogen-fixing bacteria; sandy soils; soil fertility; symbiosis; Great Lakes region; Minnesota
Abstract:
... To reach the goal set by the United States Department of Energy to replace 30% of 2004 gasoline usage with biofuels by 2030, the U.S. will need to consider diverse biomass feedstock sources, such as the plant genus Alnus. This genus contains nitrogen-fixing species that grow in a wide variety of challenging conditions. This study focused on 13 species of Alnus and was designed to determine surviva ...

40. An operational robotic pollen monitoring network based on automatic image recognition

Author:
Jose Oteros; Alisa Weber; Suzanne Kutzora; Jesús Rojo; Stefanie Heinze; Caroline Herr; Robert Gebauer; Carsten B. Schmidt-Weber; Jeroen T.M. Buters
Source:
Environmental research 2020 v.191 pp. 110031
ISSN:
0013-9351
Subject:
Alnus; Populus; information networks; pollen; pollen season; research; robots; Germany
Abstract:
... There is high demand for online, real-time and high-quality pollen data. To the moment pollen monitoring has been done manually by highly specialized experts. Here we evaluate the electronic Pollen Information Network (ePIN) comprising 8 automatic BAA500 pollen monitors in Bavaria, Germany. Automatic BAA500 and manual Hirst-type pollen traps were run simultaneously at the same locations for one po ...
DOI:
10.1016/j.envres.2020.110031

41. Analysis of Alnus spp. pollen seasons in Lublin and Warszawa (Poland), 2001-2007

Author:
Elżbieta Weryszko-Chmielewska; Piotr Rapiejko
Source:
Acta agrobotanica v.60 no.2 pp. 87-97
ISSN:
2300-357X
Subject:
Alnus; cities; pollen; Poland
Abstract:
... The course of Alnus spp. pollen seasons was compared in two cities, Lublin and Warsaw, located at a small distance from each other but included in different climatic regions of Poland. The studies were conducted using the volumetric method. It was shown that Alnus pollen seasons started in Warsaw earlier and were much shorter than in Lublin. The span between the start dates of pollen seasons was s ...
DOI:
10.5586/aa.2007.035

42. Analysis of airborne allergenic pollen spectrum for 2009 in Timişoara, Romania

Author:
Nicoleta Ianovici; Carmen Bunu Panaitescu; Ileana Brudiu
Source:
Aerobiologia 2013 v.29 no.1 pp. 95-111
ISSN:
0393-5965
Subject:
Alnus; Amaranthaceae; Ambrosia; Artemisia; Betula; Carpinus; Corylus; Cupressaceae; Fraxinus; Juglans; Pinaceae; Plantago; Poaceae; Populus; Quercus; Rumex; Salix; Taxaceae; Tilia; Ulmus; Urticaceae; allergenicity; autumn; correlation; meteorological parameters; patients; pollen; seasonal variation; spring; summer; temperature; Romania
Abstract:
... The objective of this investigation was to identify the overall pollen types and, more particularly, the allergenic pollen content in the investigated area and then to explore their seasonal variations. The measurement point was located in the Timişoara city, Romania. A Lanzoni volumetric trap was used for sample collection. Duration of the pollen season of allergenic plants and respective variati ...
DOI:
10.1007/s10453-012-9266-y

43. Analysis of allergenic pollen data, focusing on a pollen load threshold statement

Author:
Laura Šukienė; Ingrida Šaulienė; Rūta Dubakienė; Odilija Rudzevičienė; Gintautas Daunys
Source:
Aerobiologia 2021 v.37 no.4 pp. 843-860
ISSN:
0393-5965
Subject:
Alnus; Artemisia; Betula; Corylus; Poaceae; air quality; allergenicity; allergic rhinitis; asthma; morbidity; pollen; pollen loads; pollen season; public health; telemedicine; Lithuania
Abstract:
... Airborne allergenic pollen affects a significant part of the population and the information on pollen load is a valuable tool for public health prevention. The messages should be provided in a form easily understandable for the population. The study provides new insight for the categorisation of pollen load by defining thresholds solely from aerobiological data. Using the long-term airborne pollen ...
DOI:
10.1007/s10453-021-09727-2

44. Anatomical and molecular characterization of Lactarius aff. omphaliformis, Russula alnijorullensis and Cortinarius tucumanensis ectomycorrhizae on Alnus acuminata

Author:
Becerra, A.; Beenken, L.; Pritsch, K.; Daniele, G.; Schloter, M.; Agerer, R.
Source:
Mycologia 2005 v.97 no.5 pp. 1047-1057
ISSN:
0027-5514
Subject:
Lactarius; Russula; Cortinarius; ectomycorrhizae; mycorrhizal fungi; fungal anatomy; internal transcribed spacers; Alnus acuminata; Argentina
DOI:
10.3852/mycologia.97.5.1047
PubMed:
16596956

45. Annual pollen sums of alnus in Lublin and Roztocze in the years 2001-2007 against selected meteorological parameters

Author:
Bogusław M. Kaszewski; Irena A. Pidek; Krystyna Piotrowska; Elżbieta Weryszko-Chmielewska
Source:
Acta agrobotanica v.61 no.2 pp. 57-64
ISSN:
2300-357X
Subject:
Alnus; air; air temperature; climate; correlation; grains; meteorological parameters; monitoring; pollen; pollen flow; summer; traps; vegetation; villages; Poland
Abstract:
... Alder (Alnus Mill.), as an anemophilous species, produces large quantities of easily dispersed pollen. Annual pollen sums recorded in south-eastern Poland (by the volumetric method - Lanzoni trap) and in the area of the village of Guciów in the Central Roztocze region (pollen deposition in Tauber traps) were compared. The height at which the respective trap sites were located as well as local and ...
DOI:
10.5586/aa.2008.033

46. Anthropogenic and climate controls on vegetation changes between 1500 BCE and 500 CE reconstructed from a high-resolution pollen record from varved sediments of Lake Mondsee, Austria

Author:
Anna Schubert; Stefan Lauterbach; Christian Leipe; Vitus Scholz; Achim Brauer; Pavel E. Tarasov
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.559 pp. 109976
ISSN:
0031-0182
Subject:
Alnus; Betula; Fagus; North Atlantic Oscillation; United Nations Educational, Scientific and Cultural Organization; anthropogenic activities; botanical composition; climate; humans; ice; lakes; oxygen isotopes; palaeogeography; paleoclimatology; paleoecology; pollen; potassium; runoff; sediments; temperature; vegetation; watersheds; Alps region; Austria; Greenland
Abstract:
... This study reports a precisely dated pollen record with a 20-year resolution from the varved sediments of Lake Mondsee in the north-eastern European Alps (47°49′N, 13°24′E, 481 m above sea level). The analysed part of core spans the interval between 1500 BCE and 500 CE and allows changes in vegetation composition in relation to climatic changes and human activities in the catchment to be inferred. ...
DOI:
10.1016/j.palaeo.2020.109976

47. Anthropogenic control of late-Holocene landscapes in the Cuzco region, Peru

Author:
Nicole A Sublette Mosblech; Alex Chepstow-Lusty; Bryan G Valencia; Mark B Bush
Source:
Holocene v.22 no.12 pp. 1361-1372
ISSN:
1477-0911
Subject:
Alnus; Amaranthaceae; agroforestry; anthropogenic activities; biogeography; climate change; climatic factors; corn; cultivars; fuels; lakes; landscapes; paleoecology; pollen; sediments; social change; society; tropical montane cloud forests; Andes region; Peru
Abstract:
... The rise of complex Andean cultures is tied to increasingly sophisticated use of natural resources and infrastructural development. Considerable debate surrounds the extent to which these societies were forced to respond to changing climates or whether their modifications to the landscape minimized climate impacts. Here, we present a region-wide perspective of paleoecological changes around Cuzco, ...
DOI:
10.1177/0959683612449760

48. Anthropogenous influence of Norilsk industrial area on plant vegetation cover of the tundra and forest tundra

Author:
M. Yu. Telyatnikov; S. A. Prystyazhnyuk
Source:
Contemporary problems of ecology 2014 v.7 no.6 pp. 654-668
ISSN:
1995-4255
Subject:
Alnus; anthropogenic activities; bogs; cold; ecosystems; emissions; factories; forests; grasses; humid zones; hydrogen sulfide; lichens; meadows; models; mosses and liverworts; pollutants; shrubs; species diversity; trees; tundra; vegetation cover
Abstract:
... The diversity of plant vegetation of the study area is represented by 17 associations, 9 alliances, 7 orders, and 6 classes. Geobotanic maps of the region are compiled for the first time using modern technology. The medium-scale mapping of natural vegetation has also been carried out. It is shown that the spatial structure of plant vegetation in the flat areas is mostly ordered structures-complexe ...
DOI:
10.1134/S1995425514060158

49. Antidiabetic and antioxidant potential of Alnus nitida leaves in alloxan induced diabetic rats

Author:
Moniba Sajid; Muhammad Rashid Khan; Hammad Ismail; Sara Latif; Amna Abdul Rahim; Ramsha Mehboob; Sayed Afzal Shah
Source:
Journal of ethnopharmacology 2020 v.251 pp. 112544
ISSN:
0378-8741
Subject:
Alnus; alanine transaminase; alloxan; alpha-amylase; alpha-glucosidase; animal disease models; antioxidant activity; antioxidant enzymes; aspartate transaminase; blood serum; carboxylic ester hydrolases; chloroform; cholesterol; creatinine; diabetes; ethyl acetate; fractionation; gas chromatography-mass spectrometry; glucose; glutathione; glycemic effect; hexane; high density lipoprotein; high performance liquid chromatography; histopathology; hydrogen peroxide; hyperglycemia; in vitro studies; insulin; kidneys; leaves; linalool; lipid peroxidation; liver; methanol; mutagens; nitrites; pancreas; rats; renal function; thiobarbituric acid-reactive substances; traditional medicine; triacylglycerols; vitamin E
Abstract:
... Leaves of Alnus nitida are used by local communities for the management of diabetes and in inflammatory disorders.Powder of shade dried leaves of A. nitida was extracted with methanol (ANME) and fractionated in escalating polarity i.e n-hexane (ANHE), chloroform (ANCE), ethyl acetate (ANEE) and soluble residual aqueous fraction (ANAE). The extract/fractions were evaluated for antidiabetic in vitro ...
DOI:
10.1016/j.jep.2020.112544

50. Antioxidant effects of diarylheptanoid derivatives from Alnus japonica on human LDL oxidation

Author:
Lee, W.S.; Kim, J.R.; Im, K.R.; Cho, K.H.; Sok, D.E.; Jeong, T.S.
Source:
Planta medica 2005 v.71 no.4 pp. 295-299
ISSN:
0032-0943
Subject:
Alnus japonica; medicinal plants; plant extracts; heptane; low density lipoprotein; oxidation; antioxidant activity; chemical structure; spectral analysis; humans; South Korea
DOI:
10.1055/s-2005-864093
PubMed:
15856403