Alpha 2.0
Login Register
» Articles » PMID: 25391262

Comparison of the Structure of Floral Nectaries in Two Euonymus L. Species (Celastraceae)

Overview
Journal Protoplasma
Publisher Springer
Specialty Biology
Date 2014 Nov 14
PMID 25391262
Citations 7
Authors
Agata Konarska
Affiliations
Soon will be listed here.
Abstract

The inconspicuous Euonymus L. flowers are equipped with open receptacular floral nectaries forming a quadrilateral green disc around the base of the superior ovary. The morphology and anatomy of the nectaries in Euonymus fortunei (Turcz.) Hand.-Mazz. and Euonymus europaeus L. flowers were analysed under a bright-field light microscope as well as stereoscopic and scanning electron microscopes. Photosynthetic nectaries devoid of the vascular tissue were found in both species. Nectar was exuded through typical nectarostomata (E. fortunei) or nectarostomata and secretory cell cuticle (E. europaeus). The nectaries of the examined species differed in their width and height, number of layers and thickness of secretory parenchyma, and the height of epidermal cells. Moreover, there were differences in the location and abundance of nectarostomata and the content of starch and phenolic compounds.

Citing Articles

Microstructure of floral nectaries in Robinia viscosa var. hartwigii (Papilionoideae, Fabaceae)-a valuable but little-known melliferous plant.

Konarska A Protoplasma. 2019; 257(2):421-437.

PMID: 31736015 DOI: 10.1007/s00709-019-01453-4.

Taxonomic traits in the microstructure of flowers of parasitic Orobanche picridis with particular emphasis on secretory structures.

Konarska A, Chmielewski P Protoplasma. 2019; 257(1):299-317.

PMID: 31529247 PMC: 6982642. DOI: 10.1007/s00709-019-01438-3.

Morphological study of floral nectaries in and the probable origin of the echinate fruit surface.

Yao C, Zuo Y, Du C, Ma J Plant Divers. 2018; 40(1):35-40.

PMID: 30159539 PMC: 6091930. DOI: 10.1016/j.pld.2017.12.004.

Floral nectary, nectar production dynamics and chemical composition in five nocturnal Oenothera species (Onagraceae) in relation to floral visitors.

Anton S, Komon-Janczara E, Denisow B Planta. 2017; 246(6):1051-1067.

PMID: 28779217 PMC: 5653728. DOI: 10.1007/s00425-017-2748-y.

Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples.

Bello M, Ruiz-Leon Y, Sandoval-Sierra J, Rezinciuc S, Dieguez-Uribeondo J J Vis Exp. 2017; (120).

PMID: 28190042 PMC: 5408598. DOI: 10.3791/55031.

References
1.
Tobe H . Floral morphology and structure of Phyllonoma (Phyllonomaceae): systematic and evolutionary implications. J Plant Res. 2013; 126(5):709-18. DOI: 10.1007/s10265-013-0556-4. View
2.
Tan K, Guo Y, Nicolson S, Radloff S, Song Q, Hepburn H . Honeybee (Apis cerana) foraging responses to the toxic honey of Tripterygium hypoglaucum (Celastraceae): changing threshold of nectar acceptability. J Chem Ecol. 2007; 33(12):2209-17. DOI: 10.1007/s10886-007-9384-0. View
3.
Heil M . Nectar: generation, regulation and ecological functions. Trends Plant Sci. 2011; 16(4):191-200. DOI: 10.1016/j.tplants.2011.01.003. View
4.
Montenegro G, Diaz-Forestier J, Fredes C, Rodriguez S . Phenolic profiles of nectar and honey of Quillaja saponaria Mol. (Quillajaceae) as potential chemical markers. Biol Res. 2013; 46(2):177-82. DOI: 10.4067/S0716-97602013000200009. View
5.
Fahn A . Secretory tissues in vascular plants. New Phytol. 2021; 108(3):229-257. DOI: 10.1111/j.1469-8137.1988.tb04159.x. View