Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily

In this study pollen grains of 13 cultivars and 3 rootstocks belonging to 5 species (P. armeniaca, P. domestica, P. dulcis, P. persica, P. avium) of the genus Prunus collected from North-East Sicily were examined for the micromorphological characterization through the scanning electron microscopy (S...

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Main Authors: Anna Geraci, Vincenza Polizzano, Pasquale Marino, Rosario Schicchi
Format: Article
Language:English
Published: Polish Botanical Society 2012-08-01
Series:Acta Societatis Botanicorum Poloniae
Subjects:
Online Access:https://pbsociety.org.pl/journals/index.php/asbp/article/view/190
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author Anna Geraci
Vincenza Polizzano
Pasquale Marino
Rosario Schicchi
author_facet Anna Geraci
Vincenza Polizzano
Pasquale Marino
Rosario Schicchi
author_sort Anna Geraci
collection DOAJ
description In this study pollen grains of 13 cultivars and 3 rootstocks belonging to 5 species (P. armeniaca, P. domestica, P. dulcis, P. persica, P. avium) of the genus Prunus collected from North-East Sicily were examined for the micromorphological characterization through the scanning electron microscopy (SEM). The length of polar axis (P) and the equatorial diameter (E) of grain, P/E ratio, the length of colpi (C), diameter of perforations (DP) and the number of perforations in 25 μm2 (PN), the width of muri (WM), the distance between muri (DM) and their number in 25 μm2 (MN), the width of grooves (WG) were measured and their variation was compared among studied taxa. Moreover multivariate statistical analysis was carried out to distinguish morphometric information from measured parameters. All pollen grains are trizonocolpate, isopolar, medium-large sized and their shape varies from prolate to perprolate. Regarding outline pollen grains are subtriangular in polar view and elliptic in equatorial view. Exine sculpturing is striate with perforations on grain surface. The arrangement of ridges appears roughly parallel but too sloped (sometimes curved) compared to polar axis, or branched and oriented in different directions, or perfectly parallel or more irregular with bifurcated ridges often sinuous. The analyses showed a great variability (particularly in P. domestica cultivars) related in some cases to the diversity in the morphological features of the leaves and the fruits of the investigated entities.
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spelling doaj.art-eede1ad658d04dd1b3e56f712a85e24c2022-12-22T00:34:08ZengPolish Botanical SocietyActa Societatis Botanicorum Poloniae2083-94802012-08-0181317518410.5586/asbp.2012.017730Investigation on the pollen morphology of traditional cultivars of Prunus species in SicilyAnna Geraci0Vincenza Polizzano1Pasquale Marino2Rosario Schicchi3Department of Environmental Biology and Biodiversity, University of Palermo, Via Archirafi, 38-90123Department of Environmental Biology and Biodiversity, University of Palermo, Via Archirafi, 38-90123Department of Environmental Biology and Biodiversity, University of Palermo, Via Archirafi, 38-90123Department of Environmental Biology and Biodiversity, University of Palermo, Via Archirafi, 38-90123In this study pollen grains of 13 cultivars and 3 rootstocks belonging to 5 species (P. armeniaca, P. domestica, P. dulcis, P. persica, P. avium) of the genus Prunus collected from North-East Sicily were examined for the micromorphological characterization through the scanning electron microscopy (SEM). The length of polar axis (P) and the equatorial diameter (E) of grain, P/E ratio, the length of colpi (C), diameter of perforations (DP) and the number of perforations in 25 μm2 (PN), the width of muri (WM), the distance between muri (DM) and their number in 25 μm2 (MN), the width of grooves (WG) were measured and their variation was compared among studied taxa. Moreover multivariate statistical analysis was carried out to distinguish morphometric information from measured parameters. All pollen grains are trizonocolpate, isopolar, medium-large sized and their shape varies from prolate to perprolate. Regarding outline pollen grains are subtriangular in polar view and elliptic in equatorial view. Exine sculpturing is striate with perforations on grain surface. The arrangement of ridges appears roughly parallel but too sloped (sometimes curved) compared to polar axis, or branched and oriented in different directions, or perfectly parallel or more irregular with bifurcated ridges often sinuous. The analyses showed a great variability (particularly in P. domestica cultivars) related in some cases to the diversity in the morphological features of the leaves and the fruits of the investigated entities.https://pbsociety.org.pl/journals/index.php/asbp/article/view/190Pollen morphologySEMSicilian Prunusspeciescultivars
spellingShingle Anna Geraci
Vincenza Polizzano
Pasquale Marino
Rosario Schicchi
Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
Acta Societatis Botanicorum Poloniae
Pollen morphology
SEM
Sicilian Prunus
species
cultivars
title Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
title_full Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
title_fullStr Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
title_full_unstemmed Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
title_short Investigation on the pollen morphology of traditional cultivars of Prunus species in Sicily
title_sort investigation on the pollen morphology of traditional cultivars of prunus species in sicily
topic Pollen morphology
SEM
Sicilian Prunus
species
cultivars
url https://pbsociety.org.pl/journals/index.php/asbp/article/view/190
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