Composition of the floral nectar of different subgenera of Argentinian Passiflora species

The composition of the floral nectar sugars and amino acids of four species of Passiflora (P. foetida, P. caerulea, P. suberosa, and P. misera) included in different infrageneric taxa and with distinct pollination mechanisms has been studied. The effect of weather and floral age on nectar volume, ex...

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Autores principales:	García, M.T.A., Gottsberger, G.
Formato:	JOUR
Materias:	Amino acids Chemotaxonomical affinities Floral nectar constituents Passiflora Pollination mechanisms Sugars Apoidea Passiflora caerulea Passiflora edulis Passiflora foetida Passiflora misera Passiflora suberosa
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03782697_v283_n3_p133_Garcia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03782697_v283_n3_p133_Garcia
record_format	dspace
spelling	todo:paper_03782697_v283_n3_p133_Garcia2023-10-03T15:32:08Z Composition of the floral nectar of different subgenera of Argentinian Passiflora species García, M.T.A. Gottsberger, G. Amino acids Chemotaxonomical affinities Floral nectar constituents Passiflora Pollination mechanisms Sugars Apoidea Passiflora Passiflora caerulea Passiflora edulis Passiflora foetida Passiflora misera Passiflora suberosa The composition of the floral nectar sugars and amino acids of four species of Passiflora (P. foetida, P. caerulea, P. suberosa, and P. misera) included in different infrageneric taxa and with distinct pollination mechanisms has been studied. The effect of weather and floral age on nectar volume, existence, and total and relative amounts of the various compounds was explored. The proportion of sugars was rather constant within a given species whereas the composition, number, and total quantity of amino acids showed great intraspecific and intra-plant variability; these nectar properties were independent of floral stage or meteorological conditions. Species belonging to the same subgenus displayed equivalent sugar ratios and similar total amount of amino acids, so these characteristics might be conservative in the genus. For all species, the amino acid concentration surpassed known values for their respective pollination syndromes, viz. bee and wasp-pollinated flowers. No relationship emerged between pollinators with different glossa length and nectars with distinct sugar ratios. Rather, nectar chemical composition seems to reflect taxonomic relationships. © Springer-Verlag 2009. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03782697_v283_n3_p133_Garcia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Amino acids Chemotaxonomical affinities Floral nectar constituents Passiflora Pollination mechanisms Sugars Apoidea Passiflora Passiflora caerulea Passiflora edulis Passiflora foetida Passiflora misera Passiflora suberosa
spellingShingle	Amino acids Chemotaxonomical affinities Floral nectar constituents Passiflora Pollination mechanisms Sugars Apoidea Passiflora Passiflora caerulea Passiflora edulis Passiflora foetida Passiflora misera Passiflora suberosa García, M.T.A. Gottsberger, G. Composition of the floral nectar of different subgenera of Argentinian Passiflora species
topic_facet	Amino acids Chemotaxonomical affinities Floral nectar constituents Passiflora Pollination mechanisms Sugars Apoidea Passiflora Passiflora caerulea Passiflora edulis Passiflora foetida Passiflora misera Passiflora suberosa
description	The composition of the floral nectar sugars and amino acids of four species of Passiflora (P. foetida, P. caerulea, P. suberosa, and P. misera) included in different infrageneric taxa and with distinct pollination mechanisms has been studied. The effect of weather and floral age on nectar volume, existence, and total and relative amounts of the various compounds was explored. The proportion of sugars was rather constant within a given species whereas the composition, number, and total quantity of amino acids showed great intraspecific and intra-plant variability; these nectar properties were independent of floral stage or meteorological conditions. Species belonging to the same subgenus displayed equivalent sugar ratios and similar total amount of amino acids, so these characteristics might be conservative in the genus. For all species, the amino acid concentration surpassed known values for their respective pollination syndromes, viz. bee and wasp-pollinated flowers. No relationship emerged between pollinators with different glossa length and nectars with distinct sugar ratios. Rather, nectar chemical composition seems to reflect taxonomic relationships. © Springer-Verlag 2009.
format	JOUR
author	García, M.T.A. Gottsberger, G.
author_facet	García, M.T.A. Gottsberger, G.
author_sort	García, M.T.A.
title	Composition of the floral nectar of different subgenera of Argentinian Passiflora species
title_short	Composition of the floral nectar of different subgenera of Argentinian Passiflora species
title_full	Composition of the floral nectar of different subgenera of Argentinian Passiflora species
title_fullStr	Composition of the floral nectar of different subgenera of Argentinian Passiflora species
title_full_unstemmed	Composition of the floral nectar of different subgenera of Argentinian Passiflora species
title_sort	composition of the floral nectar of different subgenera of argentinian passiflora species
url	http://hdl.handle.net/20.500.12110/paper_03782697_v283_n3_p133_Garcia
work_keys_str_mv	AT garciamta compositionofthefloralnectarofdifferentsubgeneraofargentinianpassifloraspecies AT gottsbergerg compositionofthefloralnectarofdifferentsubgeneraofargentinianpassifloraspecies
_version_	1807320266852794368

Composition of the floral nectar of different subgenera of Argentinian Passiflora species

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