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Publication Type J
Authors Fernandez-Illescas, F., F. J. J. Nieva, B. Marquez-Garcia and A. F. Munoz-Rodriguez
Title Pollen production in halophytic species of the Chenopodiaceae in a Mediterranean marsh
Source Grana
Author Keywords Marsh pollen P O ratio Chenopodiaceae pollination reproductive biology grayia-brandegei chenopodiaceae evolutionary perspectives salicornia-europaea new-zealand population l.
Abstract The pollen production per anther has been analysed in ten species of Chenopodiaceae that grow in the salt marshes of the Marismas del Odiel Natural Park (Huelva, south-west Spain). The mean pollen production per anther is 5819, ranged from 580 in Salicornia ramosissima to 12 467 in Salsola vermiculata, and is related to the size of the anthers. In six of the species, pollen production per anther has been studied in two populations and a strong interaction between species and populations was found. Pollen production of central and lateral flowers has been compared in four species, showing that central flowers produce significantly more pollen than lateral ones. In Arthrocnemum macrostachyum, a comparison between the pollen production of upper and lower stamens was performed and no significant differences were found. The pollen/ovule (P/O) ratio has been estimated for each of the species studied for the monoecious species, using the previously calculated male flower/female flower ratio. The monoecious species have the highest P/O ratios, followed by those with hermaphrodite flowers and allogamous reproduction. The lowest P/O ratios were found in Salicornia ramosissima (681) and Suaeda albescens (6025), possibly due to them being autogamous, which is consistent with the annual cycle and ecology of the species. The biggest value was found in the monoecious species Halimione portulacoides (88 405). In the remainder of the species, the P/O ratio depends on the density of individuals of each species in the communities.
Author Address [Fernandez-Illescas, F; Nieva, FJJ; Marquez-Garcia, B; Munoz-Rodriguez, AF] Univ Huelva, Fac Ciencias Expt, Dept Biol Ambiental & Salud Publ, Huelva 21071, Spain Munoz-Rodriguez, AF (reprint author), Univ Huelva, Fac Ciencias Expt, Dept Biol Ambiental & Salud Publ, Campus El Carmen,Avda Fuerzas Armadas S-N, Huelva 21071, Spain adolfo.munoz@dbasp.uhu.es
ISSN 0017-3134
ISBN 0017-3134
29-Character Source Abbreviation Grana
Year Published 2010
Volume 49
Issue 4
Beginning Page 300-307
Digital Object Identifier (DOI) 10.1080/00173134.2010.522728
Unique Article Identifier WOS:000284899900006
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