Results 131 to 140 of about 82,507 (302)
Cytoskeleton, EarlyView.ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta +5 more
wiley +1 more source
Conservation genomics and pollination biology of an endangered, edaphic-endemic, octoploid herb: El Dorado bedstraw (Galium californicum subsp. sierrae; Rubiaceae). [PDF]
PeerJ, 2020 Burge D.
europepmc +1 more source
Hybrid Varieties for Organic Cereals? Prospects and acceptance of hybrid breeding for organic production [PDF]
, 2006 Hybrid breeding utilizes the advantages characterizing F1 plants in a targeted manner: Vigour, uniformity, and a combination of all dominant traits of the parental lines.
Arncken, Christine, Dierauer, Hansueli
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The scaling of seed‐dispersal specialization in interaction networks across levels of organization
Ecography, EarlyView.Natural ecosystems are characterized by a specialization pattern where few species are common while many others are rare. In ecological networks involving biotic interactions, specialization operates as a continuum at individual, species, and community levels. Theory predicts that ecological and evolutionary factors can primarily explain specialization.
Gabriel M. Moulatlet +3 more
wiley +1 more source
Ecography, EarlyView.Risk assessments of invasive species present one of the most challenging applications of species distribution models (SDMs) due to the fundamental issues of distributional disequilibrium, niche changes, and truncation. Invasive species often occupy only a fraction of their potential environmental and geographic ranges, as their spatiotemporal dynamics ...
Erola Fenollosa +4 more
wiley +1 more source
Pollinator-mediated selection and floral evolution: From pollination ecology to macroevolution [PDF]
, 2010 Armbruster, Scott, Sapir, Y.
core +1 more source
The role of pollinator attracting scent in the sexually deceptive orchids Ophrys chestermanii, O. normanii and O. tenthredinifera [PDF]
, 2008 Sexual deception of male bees is one of the most remarkable mechanisms of pollination (Ackermann 1986, Proctor & al. 1996). Flowers of the orchid genus Ophrys mimic females of their pollinator species, usually bees and wasps, to attract males, which try ...
Ayasse, Manfred +9 more
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Food Biomacromolecules, EarlyView.Abstract This research describes the engineering of chitosan nanoparticles (CS NPs) via ionic gelation to I'm double or somethingencapsulate Ajwah seed extract (ASE), repurposing a plant waste product for its documented antioxidant and anticancer potential.
Jailan E. Elhalawani +2 more
wiley +1 more source
Journal of Pollination EcologyPollination syndromes describe convergent floral traits linked to specific pollinator groups. While conceptually useful, the application of this framework to diverse insect assemblages, such as Diptera, remains challenging due to their functional ...
João Farminhão, Sílvia Castro
doaj +1 more source
"Fair" policies for the coffee trade - protecting people or biodiversity? [PDF]
, 2006 We investigate the role that economic instruments can play in the eradication of poverty and preservation of biodiversity in agroforestry management in coffee production.
Heikkilä, Jaakko +2 more
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