Results 141 to 150 of about 9,729 (168)

Nectar secretion in excised flowers. VI. Relationship of secretion to protein metabolism

Canadian Journal of Botany, 1978
The relationship of nectar secretion in snapdragon to protein metabolism, and the influence on both processes of indoleacetic acid (IAA) and to a lesser extent pollination, were both studied. Indoleacetic acid at 5 × 10−4 M appeared to initiate a reorganization in the nectary which led to the stimulation of growth and an early termination of secretion.
R. W. Shuel, W. Tsao
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Nectar Storage in Relation to Wax Secretion by Honeybees

Journal of Apicultural Research, 1988
SummaryExperiments were performed to assess nectar forage and the availability of empty combs as well as free building space within the nest cavity in relation to wax secretion. There was a positive correlation between engorgement of the honey stomach and wax secretion.
H. R. Hepburn, P. C. Magnuson
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Nightshade Wound Secretion: The World's Simplest Extrafloral Nectar?

Trends in Plant Science, 2016
Wounded nightshade leaves secrete a sugary liquid that, like extrafloral nectar (EFN), attracts ants as defence against herbivores. The secretion of these droplets requires no detectable nectary tissue, showing how little it takes to produce a functioning nectary.
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Circadian rhythmicity of nectar secretion in Hoya carnosa

Botanica Helvetica, 2006
Matile Ph. 2006. Circadian rhythmicity of nectar secretion in Hoya carnosa. Bot. Helv. 116: 1–7. A simple device for continuous sampling of nectar secreted in single flowers of Hoya carnosa R. Br. (Asclepiadaceae) is described. Sampling at 3 hrs intervals over several days revealed an oscillating secretion with maxima around midnight.
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ULTRASTRUCTURE OF NECTARIES IN RELATION TO NECTAR SECRETION

American Journal of Botany, 1979
In the last 15–20 years, ultrastructural studies have added new important cytological information to the relatively rich literature on the morphology and light microscopy of nectaries. On the basis of these studies, the following main conclusions can be drawn regarding the relation between the ultrastructure of nectaries and the process of nectar ...
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Effect of zinc on nectar secretion of Hibiscus rosa-sinensis L

Protoplasma, 2013
Zinc toxicity in secretory cells caused a range of effects, mainly depending on metal concentration. Low concentrations activated nectary function increasing nectar secretion but secretion was greatly inhibited or stopped entirely by ongoing concentration.
Thomas, Sawidis, Alexandra, Papadopoulou, Maria, Voulgaropoulou   +2 more
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Nectar Secretion of the Tuliptree or Yellow Poplar

Journal of Economic Entomology, 1933
Because of the large amount of nectar flow observed from the tuliptree (Lirodendron tulipifera) , an experiment was undertaken to determine the quantity of nectar secreted per blossom and the sugar content of this nectar. The average weight of nectar secreted by one flower was 1.6417 grams.
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Nectar Secretion: Its Ecological Context and Physiological Regulation

2011
Plants secrete nectar to attract pollinators and indirect defenders. The chemical contents of both floral and extrafloral nectar appear adapted to attract and nourish these two classes of animal mutualists. Being rich in sugars and amino acids, however, nectar also requires protection from nectar robbers and infecting micro-organisms.
María Escalante-Pérez, Martin Heil
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A model for nectar secretion in animal-pollinated plants

Evolutionary Ecology, 1993
A game theoretic model was developed for nectar secretion in animal-pollinated plants in order to examine how the total amount of resources allocated to flowers affects the spread of nectarless plants. It was assumed that pollinators concentrate on patches whose nectar rewards are relatively large compared to other patches and if pollinators visit a ...
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Nectar secretion pattern and removal effects in Lycium (Solanaceae)

2005
Fil: Bernardello, Gabriel Luis Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales.
Bernardello, Gabriel Luis Mario, Galetto, Leonardo   +1 more
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