Results 41 to 50 of about 3,341 (216)

Anatomy and Histology of the Midgut of Atopozelus opsimus (Heteroptera: Reduviidae)

Acta Zoologica, EarlyView.
ABSTRACT Atopozelus opsimus Elkins, 1954 (Heteroptera: Reduviidae) preys on forest and agricultural pests but also feeds on extrafloral nectar; however, its alimentary canal is poorly understood. The aim was to describe the anatomy and histology of the A. opsimus midgut. The alimentary canal of female and male A.
Bruna Silva Lisboa, José Eduardo Serrão, Jamile Fernanda Silva Cossolin, Germano Leão Demolin Leite, José Cola Zanuncio, Sebastião Lourenço de Assis Júnior, Pedro Guilherme Lemes   +6 more
wiley   +1 more source

Autophagy and vacuolar biogenesis during the nectary development

, 2019
Main conclusion: Different autophagy pathways are a driver of vacuolar biogenesis and are development stage specific during the extrafloral nectary development in Citharexylum myrianthum.
Rodrigues, Tatiane M. [UNESP], Rodrigues, Tatiane M., Machado, Silvia R. [UNESP], Machado, Silvia R.   +3 more
core   +1 more source

Floral biological investigations of apple cultivars in relation to fire blight

International Journal of Horticultural Science, 2004
Floral activity was studied in two apple cultivars: an Erwinia-tolerant (Treedorn') and a sensitive one (`Sampion'). Since more types of protogyny occur in apples, the period of stigma activity is different.
Zs. Orosz-Kovács, A. Farkas, T. Bubán, P. Bukovics, E. Nagy Tóth, H. Déri   +5 more
doaj   +1 more source

1170. Allium kollmannianum Brullo, Pavone & Salmeri

Curtis's Botanical Magazine, EarlyView.
Summary Allium kollmannianum is a small, late‐spring to early‐summer blooming Allium, endemic to the Negev Desert in south Israel, and previously thought to be extremely rare and critically endangered. Here we expand new information regarding its distribution and habitat in the Negev Desert, and a new estimation of its threat level, considering the new
Dar Ben‐Natan, Irene Blecher
wiley   +1 more source

Nectary structure in Dichogamous flowers of polemonium caeruleum L. (Polemoniaceae) [PDF]

, 2012
The flowers of Polemonium caeruleum are protandrous. The nectary is in the form of a rim encircling the ovary. Secreted nectar accumulates in a chamber located at the bottom of the floral tube and is protected by dense staminal hairs.
Zych, M., Stpiczynska, M., Kaminska, M.
core  

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

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

Nectary structure and nectar secretion of Echium russicum J. F. Gmel. flowers

Acta Agrobotanica, 2012
In this study, the micromorphology of nectaries in Echium russicum J. F. Gmel. flowers was determined by using scanning electron microscopy (SEM) and their anatomy by using light microscopy (LM).
Mirosława Chwil, Elżbieta Weryszko-Chmielewska   +1 more
doaj   +1 more source

Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems

Entomologia Experimentalis et Applicata, EarlyView.
We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III, Pierfilippo Cerretti   +1 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