Results 51 to 60 of about 1,448 (177)

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

The pistil as a traffic light: Yellow‐to‐red color change likely influences pollinator visitation patterns in Saxifraga fortunei (Saxifragaceae)

PLANTS, PEOPLE, PLANET, EarlyView.
Flowers can communicate reproductive status to pollinators through visual cues. In Saxifraga fortunei, pistils often changed from yellow to red after pollination, and hoverflies and honeybees preferentially visited flowers with yellow pistils. This pattern suggests that a post‐pollination color shift confined to the pistil can reduce revisits to ...
Kazuma Takizawa, Masayasu Furukawa, Kenji Suetsugu   +2 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

Floral Development of Rhamnaceae and Origin of Its Unique Floral Features

Plants, 2023
Rhamnaceae flowers have a peculiar morphology, including keeled sepals, one stamen whorl closely related to the petals, and a broad perigynous hypanthium that supports a voluminous nectary. In the present investigation, we detailed the flower development
João Paulo Basso-Alves, Carimi Cortez Ribeiro, Simone Pádua Teixeira   +2 more
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

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

Trimerous magnoliid flowers with a unique set of floral and pollen traits from the Late Cretaceous of Southern Bohemia (Czech Republic)

New Phytologist, EarlyView.
Morphospace position and phylogenetic placements of Trimeriantha monopolyada. Summary Floral structure is a key aspect of angiosperm diversity. Recent research revealed that significant floral disparity was already present in the Cretaceous. However, our understanding of early floral diversity remains limited, as it is directly dependent on the fossil ...
Xieting Wu, Maria von Balthazar, Friðgeir Grímsson, Silvia Ulrich, Andrea M. López‐Martínez, Zuzana Heřmanová, Jiří Kvaček, Jürg Schönenberger   +7 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

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

Comparison of features of the epidermis and the size of the floral nectary in four species of the genus Cotoneaster Med.

Acta Agrobotanica, 2012
The investigations involved four species of the Cotoneaster genus: C. divaricatus, C. horizontalis, C. lucidus, C. praecox, which are commonly grown for decorative purposes.
Mirosława Chwil, Elżbieta Weryszko-Chmielewska   +1 more
doaj   +1 more source