Results 81 to 90 of about 5,771 (226)

Influence of drought stress on the metabolite and ion composition in nectar and nectaries of different day‐ and night‐flowering Nicotiana species

Plant Biology, EarlyView.
Drought stress leads to reduced nectar secretion and alters nectar composition of day‐ and night‐flowering Nicotiana species, which may impair plant–pollinator interactions. Abstract The frequencies of droughts worldwide will increase in the future due to climate changes. Nectar composition of plant species varies in relation to pollinator and can also
T. Göttlinger, D. Naegel, J. E. Dick, G. Lohaus   +3 more
wiley   +1 more source

A reduced, yet functional, nectary disk integrates a complex system of floral nectar secretion in the genus Zeyheria (Bignoniaceae)

Acta Botânica Brasílica
The genus Zeyheria (Bignoniaceae) comprises only two species, both of which have been described as possessing a reduced and non-functional nectary disk.
Silvia Rodrigues Machado, Camila Vaz de Souza, Elza Guimarães   +2 more
doaj   +1 more source

Water availability shapes temporal patterns of extrafloral nectar secretion and ant visitation to a Neotropical legume

Plant Biology, EarlyView.
Drought duration affects ant–plant interactions: extrafloral nectar quality initially increases and subsequently declines, and ant interaction patterns closely track these nectar dynamics. Abstract Mutualistic plants use non‐structural sugar (NSC) to produce carbon‐based resources to reward partners.
B. Melati, C. Souza, A. Nogueira, L. C. Leal   +3 more
wiley   +1 more source

MICROMORPHOLOGY, ANATOMY AND ULTRASTRUCTURE OF NECTARIES IN TWO TYPES OF FLOWERS OFCitrus limonCV. ‘PONDEROSA’

Acta Scientiarum Polonorum: Hortorum Cultus, 2016
Trees of the genus Citrus can bloom all year round and are an abundant source of nectar for honey bees. Nectar production largely depends on nectary structure.
Agata Konarska, Elżbieta Weryszko-Chmielewska   +1 more
doaj  

Uncovering the Arabidopsis thaliana nectary transcriptome: investigation of differential gene expression in floral nectariferous tissues

BMC Plant Biology, 2009
Background Many flowering plants attract pollinators by offering a reward of floral nectar. Remarkably, the molecular events involved in the development of nectaries, the organs that produce nectar, as well as the synthesis and secretion of nectar itself,
Xu Wayne W, Kram Brian W, Carter Clay J
doaj   +1 more source

Quantity over quality: light intensity, but not red/far-red ratio, affects extrafloral nectar production in Senna mexicana var. chapmanii [PDF]

, 2015
Extrafloral nectar (EFN) mediates food-for-protection mutualisms between plants and insects and provides plants with a form of indirect defense against herbivory.
Koptur S., Koptur S., Wagner D.
core   +2 more sources

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

Nordic Journal of Botany, Volume 2026, Issue 4, April 2026.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho, D. Victor Souza e Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

Mechanical defenses of plant extrafloral nectaries against herbivory

Communicative & Integrative Biology, 2016
Extrafloral nectaries play an important role in plant defense against herbivores by providing nectar rewards that attract ants and other carnivorous insects.
Moshe Gish, Mark C. Mescher, Consuelo M. De Moraes   +2 more
doaj   +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

Ontogeny of the extrafloral nectaries of Vigna adenantha (Leguminosae, Phaseolae) and its relation with floral development [PDF]

, 2014
Background: The inflorescences of the genus Vigna Savi have extrafloral nectaries (EFNs) among the flowers whose origin is still unknown. The disposition, anatomy and morphology, as well as the ontogeny of the extrafloral nectaries (EFNs) associated with
Amela Garcia, Maria Teresa, Galati, Beatriz Gloria, Hoc, Patricia Susana, Ojeda, Fabiana Soledad   +3 more
core   +2 more sources