Results 71 to 80 of about 693,448 (302)
Frontiers in Ecology and Evolution, 2017 Long term survival of a species relies on maintenance of genetic variability and natural selection by means of successful reproduction and generation turnover.
Giovanna Aronne
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Optimal allocation patterns and optimal seed mass of a perennial plant
, 2013 We present a novel optimal allocation model for perennial plants, in which assimilates are not allocated directly to vegetative or reproductive parts but instead go first to a storage compartment from where they are then optimally redistributed.
Kozlowski, Jan, Mironchenko, Andrii
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Frost and Forest Stand Effects on the Population Dynamics of Asplenium scolopendrium [PDF]
, 2010 Our objective was to analyze which factors are critical for the dynamics of terrestrial Asplenium scolopendrium populations at the northern edge of its distribution.
Bremer, P., Jongejans, E.
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Molecular Oncology, EarlyView.Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Landing Preference and Reproduction of Rhopalosiphum padi (Hemiptera: Aphididae) in the Laboratory on Three Maize, Potato, and Wheat Cultivars [PDF]
, 2015 The bird cherry-oat aphid Rhopalosiphum padi (L.) transmits the nonpersistent Potato virus Y (PVY) to seed potatoes. Planting a nonvirus host plant around the main crop can reduce PVY incidence, because aphids tend to land in high numbers at the edge of ...
Glinwood, Robert +3 more
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Molecular Oncology, EarlyView.Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee +8 more
wiley +1 more source
Detection of Abscisic Acid and Jasmonates in Stigma Exudates and Their Role in Pollen Germination
HorticulturaePollen–stigma interactions have been studied extensively because they play an important role in sexual reproduction and crop yield. The vast majority of studies have focused on dry stigmas, which are typical of many model and agricultural plants; however,
Maria Breygina +5 more
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Plants, 2020 Pollen is a highly specialized structure for sexual plant reproduction. Early stages of pollen germination require the transition from dormant state to active metabolism.
Maria Breygina +3 more
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Snow tussocks, chaos, and the evolution of mast seeding [PDF]
, 2002 One hitherto intractable problem in studying mast seeding (synchronous intermittent heavy flowering by a population of perennial plants) is determining the relative roles of weather, plant reserves, and evolutionary selective pressures such as predator ...
Bjørnstad, O.N., Kelly, D., Rees, M.
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Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source