Results 21 to 30 of about 21,333 (265)
Patterns of Nectar Production in Asclepias curassavica (Apocynaceae))
Milkweeds are important nectar resources for insects in the New World. In addition, nectar is the germination medium for milkweed pollen. This study is the first controlled, greenhouse examination of patterns of nectar production in a milkweed species ...
Steven Broyles
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Diagnostic accuracy of self-collected anterior nasal swabs for SARS-CoV-2 RT-PCR testing
This prospective sub-study aimed to compare the diagnostic accuracy of the self-collected anterior nasal swab (ANS; Rhinoswab) against that of healthcare professional (HCP)-collected combined throat and nasal swab (CTN).
T. Corocher +5 more
doaj +1 more source
Comparative study of wood betony (Stachys officinalis L) melliferousness in different habitat conditions [PDF]
Nectar production in wood betony (Stachys officinalis L), grown under differ-microclimatic habitat conditions (forest and experimental field), was analyzed.
Mačukanović-Jocić Marina
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THE device of Mirafra Assamica to reach the nectar in the flowers of Castanospermum (noted in NATURE of April 15, p. 489) has its parallel among British birds. The blooms of several Asiatic species of rhododendron contain much honey, and many of these are defaced at this season by the great tit (Parus major), the blue tit (P.
openaire +2 more sources
Significant progress has been achieved in the use of heterosis in soybean and several soybean hybrids have been released in China. However, broad use of hybrid soybean seed is limited due to low seed setting of female parents.
Jing-yong ZHANG +6 more
doaj +1 more source
Nectar Uptake of a Long-Proboscid Prosoeca Fly (Nemestrinidae)—Proboscis Morphology and Flower Shape
Several Prosoeca (Nemestinidae) species use a greatly elongated proboscis to drink nectar from long-tubed flowers. We studied morphological adaptations for nectar uptake of Prosoecamarinusi that were endemic to the Northern Cape of South Africa.
Harald W. Krenn +4 more
doaj +1 more source
Nectar defense and hydrogen peroxide in floral nectar of Cucurbita pepo
This study was carried out to investigate some similarities between the nectaries of <em>Nicotiana</em> sp. and <em>Cucurbita</em> pepo, such as starch accumulation in the nectary parenchyma, changes in nectary color during maturation, and the production of a large quantity of sucrose-dominant nectar.
Daniele Nocentini +2 more
openaire +4 more sources
Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits
Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu +11 more
wiley +1 more source
CMOS‐Integrated Synaptic Photoreceptor Chip Inspired by Insect Visual Processing
CMOS‐integrated Si QDs/ReS2 synaptic photoreceptor array mimics the parallel processing and wavelength‐selective strategy of insect vision. By combining intrinsic ultraviolet‐violet sensitivity with synaptic plasticity, the chip enables frontend sensory redundancy reduction without external filters, offering a scalable pathway toward lowpower ...
Jian Chai +25 more
wiley +1 more source
Open-Source Benchmarking of Plant-Based and Animal Meats
Global food production must reduce environmental impact while meeting rising demand for dietary protein. Plant-based meats aim to preserve the sensory and cultural role of animal meat while lowering greenhouse gas emissions, land use, and health risks ...
Sybren D. van den Bedem +2 more
doaj +1 more source

