Results 31 to 40 of about 248,109 (208)
An Analysis of the Arabidopsis Pollen Transcriptome [PDF]
In flowering plants, male gametogenesis occurs in the anthers. The division of a diploid sporogenic cell results in two cells with very different fates—the tapetal initial cell and the pollen mother cell.
openaire +2 more sources
Can ploidy levels explain the variation of Herbertia lahue (Iridaceae)? [PDF]
Polyploidy is often related with phenotypic variation, as observed in Herbertia lahue, a geophyte species. This study examined the H. lahue polyploid series and departure in cytogenetic, morphometric, and pollen data.
Eudes Maria Stiehl-Alves +5 more
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Ornamental nursery plants are both a major agricultural industry in the U.S. and a major feature of the urban and suburban landscape. Interest in their relationship with pollinators is two-fold: the extent to which they provide a nutritional benefit to ...
Kimberly A. Stoner +4 more
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The paper presents reconstructions of vegetation and forest coverage dynamics in the area of the State Military-Historical and Natural Museum-Reserve «Kulikovo Pole» (Upper Don River basin) in the middle and late Holocene, based on modern and fossil ...
Elena Yu. Novenko
doaj +1 more source
To complement discussions about vegetation history and climate variations in south Greenland, especially during the Norse settlement, we developed a sedimentological multiproxy approach to study a 4300-year-old lacustrine core comprising pollen analysis,
Emilie Gauthier +5 more
doaj +1 more source
Automation of pollen analysis using a computer microscope : a thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Computer Systems Engineering at Massey University [PDF]
The classification and counting of pollen is an important tool in the understanding of processes in agriculture, forestry, medicine and ecology. Current pollen analysis methods are manual, require expert operators, and are time consuming.
Holdaway, Craig Alexander
core
Th17 responses are not altered by natural exposure to seasonal allergens in pollen-sensitive patients [PDF]
Background: Allergic rhinitis affects 10–30 % of the global population and this number is likely to increase in the forthcoming years. Moreover, it commonly co-exists with allergic asthma as a chronic allergic respiratory syndrome. While the involvement
Czesnikiewicz-Guzik, Marta +10 more
core +3 more sources
Globally, both managed and wild pollination services are unable to meet current rates of crop production and pollination demand. Wild pollination services could be improved through the reforestation of agricultural land margins, however plant–pollinator ...
Adelina Latinovic +3 more
doaj +1 more source
The arabidopsis COX11 homolog is essential for cytochrome c oxidase activity [PDF]
Members of the ubiquitous COX11 (cytochrome c oxidase 11) protein family are involved in copper delivery to the COX complex. In this work, we characterize the Arabidopsis thaliana COX11 homolog (encoded by locus At1g02410).
Mansilla, Natanael +3 more
core +2 more sources
New lithological, palinological and chronological data obtained through the study of bottom sediments from four small lake depressions on the Pomor Coast, Onega Bay, White Sea are presented.
Vasili Kolka +2 more
doaj +1 more source

