Results 51 to 60 of about 1,446 (175)

1173. Ipomoea pandurata (L.) G. Mey

Curtis's Botanical Magazine, EarlyView.
Summary Ipomoea pandurata is a Morning Glory from North America which develops a large storage root. There is much uncertainty about its discovery before its formal description in the middle of the 18th century. Originally described as a Convolvulus, almost a hundred years passed before its recognition as a species of Ipomoea.
John R.I. Wood, Christabel King, John Grimshaw   +2 more
wiley   +1 more source

The structure of nectary of Platanthera bifolia L. Orchidaceae

Acta Societatis Botanicorum Poloniae, 2014
The anatomy and ultrastructure of floral nectary of Platanthera bifolia were studied. The epidermis inside the nectary spur showed characteristic features of secretory tissue. Many cells of this epidermis were protruded forming unicellular hairs.
Małgorzata Stpiczyńska
doaj   +1 more source

Metabarcoding of Pollen Carried by Syrphids Reveals Novel Plant–Pollinator Interactions in a Protected Natural Area and Agricultural Sites

Entomologia Experimentalis et Applicata, EarlyView.
Using DNA metabarcoding, this study investigates pollen transported by syrphids (Syrphidae) in the Dolomiti Bellunesi National Park and agricultural sites in Northern Italy. The analysis reveals a high diversity of visited plant taxa, including previously undocumented plant–pollinator interactions.
Serena Magagnoli, Daniele Sommaggio, Claudio Ratti, Riccardo Baroncelli, Andrea Menicucci, Enrico Vettorazzo, Giovanni Burgio   +6 more
wiley   +1 more source

Local habitat, not landscape diversity, drives richness and reproduction of cavity‐nesting bees and wasps in agricultural landscapes

Insect Conservation and Diversity, EarlyView.
Local habitat type and hedgerow cover strongly shape bee and wasp richness, but only weakly their reproductive output, outweighing the landscape diversity effects at the 1‐km2 scale. Forests host more wasp but fewer bee species, whereas orchards support high richness of both; bee reproduction patterns are driven by one dominant species, while wasp ...
Sara Tassoni, Marit Kinga Kasten, Thomas Hiller, Michael Staab, Frank M. Schurr, Ingo Grass   +5 more
wiley   +1 more source

Spatiotemporal dynamics of nectar secretion in ‘Tarocco’ blood orange: Coordinated with floral hormones, starch mobilization, and stomatal control

Scientia Horticulturae
‘Tarocco’ blood orange (Citrus sinensis cv. ‘Tarocco’) is a vital spring nectar source, yet the spatiotemporal dynamics of its nectar secretion remain poorly understood.
Cheng Wan, Yan Shen, Lilin Luo, Zhenxing Huang, Yongchao Rao, Man Liu   +5 more
doaj   +1 more source

Identification of differential gene expression in Brassica rapa nectaries through expressed sequence tag analysis. [PDF]

PLoS ONE, 2010
BACKGROUND: Nectaries are the floral organs responsible for the synthesis and secretion of nectar. Despite their central roles in pollination biology, very little is understood about the molecular mechanisms underlying nectar production. This project was
Marshall Hampton, Wayne W Xu, Brian W Kram, Emily M Chambers, Jerad S Ehrnriter, Jonathan H Gralewski, Teresa Joyal, Clay J Carter   +7 more
doaj   +1 more source

A Repertoire of Major Genes From Crop Wild Relatives for Breeding Disease‐Resistant Wheat, Rice, Maize, Soybean and Cotton Crops

Plant Breeding, EarlyView.
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid, Hafiz Mamoon Rehman, Tsz‐Yan Cheung, Shakeel Ahmed, Ting Fung Chan, Hon‐Ming Lam   +5 more
wiley   +1 more source

Mutualism and Antagonism in a Post‐Extinction Hawaiian Bird–Lobelioid Pollination System

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Species loss can restructure plant–pollinator interactions, but the functional consequences of altered interactions remain unclear. Using camera observations and experimental manipulations in Hawaiian lobelioids, we show that nectarivorous birds differ in whether visits result in pollen contact or nectar robbing, with robbing altering nectar dynamics ...
Samuel B. Case, Donald R. Drake, Kevin Epperly, Christopher Steinbronn, Keoki Kanakaokai, Molly E. Hagemann, Nathaniel H. Kingsley, Shannon Bay Gregory, Hanna L. Mounce, Alejandro Rico‐Guevara   +9 more
wiley   +1 more source

Micromorphology And Ultrastructure Of The Floral Nectaries Of Viola Odorata L. (Violaceae)

Modern Phytomorphology, 2015
In Viola odorata two inferior anthers have connective appendages (nectaries) projecting into the corolla spur. Nectaries are approx. 4 mm long, elongate, with the top of the nectary bending to the lateral wall of the spur. In the top part and in the abaxial surface of middle part of the nectary all cells have papillae.
Wiśniewska N., Bohdanowicz J., Kowalkowska A.   +2 more
openaire   +1 more source

Flowering biology and structure of floral nectaries in Galanthus nivalis L.

Acta Societatis Botanicorum Poloniae, 2016
In Poland Galanthus nivalis L. is partially protected. The flowers of this species are one of the first sources of nectar and pollen for insects from February to April. The aim of this study was to present the flowering biology as well as the topography,
Elżbieta Weryszko-Chmielewska, Mirosława Chwil   +1 more
doaj   +1 more source