Results 31 to 40 of about 21,917,261 (298)
Can ploidy levels explain the variation of Herbertia lahue (Iridaceae)? [PDF]
Genetics and Molecular BiologyPolyploidy 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
doaj +1 more source
Insects, 2022 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
doaj +1 more source
Nature Conservation Research: Заповедная наука, 2017 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
Geosciences, 2023 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
An Analysis of the Arabidopsis Pollen Transcriptome [PDF]
Plant Physiology, 2007 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
Advanced Functional Materials, EarlyView.Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley +1 more source
Frontiers in Ecology and Evolution, 2021 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
Advanced Materials Technologies, EarlyView.A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang +8 more
wiley +1 more source
Natural and anthropogenic forest fires recorded in the Holocene pollen record from a Jinchuan peat bog, northeastern China [PDF]
, 2008 Pollen and charcoal particles from a Jinchuan peat (northeastern China) were examined to investigate the fire origin and interaction between climate, vegetation, fire and human activity during the Holocene.
Jiang, W +5 more
core +5 more sources
Vulnerability to Climate Change of Mangroves: Assessment from Cameroon, Central Africa
Biology, 2012 Intertidal mangrove ecosystems are sensitive to climate change impacts, particularly to associated relative sea level rise. Human stressors and low tidal range add to vulnerability, both characteristics of the Doula Estuary, Cameroon.
Isabella Zouh, Joanna C. Ellison
doaj +1 more source