A isopolar the proximal and distal faces of the exine are alike b heteropolar the distal and proximal faces of the exine are different, either in shape, ornamentation. The pollen of all the species studied is spheroidal, uniformly tricolporate and echinate. Pollen morphology is studied using lm and sem and is important to visualize the general features of a pollen grain, including, e. A contribution to distinguishing cereal from wild grass. Pollen morphology of 53 taxa of the south american genus alstroemeria was examined using light and scanning electron microscopy lm and sem, respectively or only with sem in search of new characters that might contribute to infrageneric classification of this genus. On the basis of exine sculpturing and seed shape, three main types are recognized in marrubium. The species are hypericum elodeoides choisy in, hypericum oblongifo. Pollen morphology of the platycodonoid group 775 figure 1. Nikolic and others published scanning electron microscopy study of pollen morphology of five sour cherry cultivars. Anthony e, f codonopsis meleagris diels g, h codonopsis subglobosa w. Wits, johannesburg, 2050 republic of south africa charles e.
The external pollen morphology of 95 species of the genus senecio, predominantly from southern africa, and 11 species from related genera of the subtribe senecioninae, was investigated using the scanning electron microscope. Pollen morphology of the studied taxa of malvaceae 1 abelmoschus esculentus x 500 2hibiscus trionum x 750 3 hibiscus rosasinensis x 750 4 hibiscussp. Pdf pollen morphology of some species of the genus. Pollen grains of 15 species of the genus sansevieria were examined using light and scanning electron microscopy. The textual glossary is arranged alphabetically for faster term searches. Devore4 1section of integrative biology and plant resources center, university of texas at austin, austin, texas 78712 2department of botany. Pollen morphology and pollen fertility estimation of three.
Sem photographs of pollen grains in codonopsis a, b codonopsis benthamii hook. Lm and sem studies on the pollen morphology of family. In addition, we present data on the organic chemistry of the pollen wall, which was analysed by means. The pollen grains were single, but dyads were also found.
In order to substantiate the methodological basis of pollen analysis in an archaeological context and to contribute to the pollen morphology of the family. Pdf pollen morphology of some species belonging to. Structure of pollen pollen itself is not the male gamete, but each pollen grain contains vegetative nonreproductive cells only a single cell in most flowering plants but several in other seed plants and a generative reproductive cell containing two nuclei. The use of the terms in lm, sem or tem and their assignment to anatomical, morphological andor functional pollen features are indicated by icons and color coding, respectively. The study revealed that palynological and seed morphological characters are of taxonomic significance in the genus.
Fabaceae in northern region of saudi arabia ahmed osman1. Hyde national museum of wales, cardiff received 22 may 1954 with i figure in the text the latin pollenmorphological terms and definitions put forward by erdtman 1943. Pollen morphology of the genus clypeola brassicaceae in iran. Pollen morphology and its relationship to taxonomy of the. Pollen morphology of the pavetteae rubiaceae, ixoroideae. This study aimed to determine the pollen grains morphology and morphometry in liliaceae. Based on the pollen morphology of sclerosperma presented herein it is clear that there are at least four different pollen morphologies produced by the three extant taxa. Pollen morphology of the genus lycopus lamiaceae sekj. This second edition, titled illustrated pollen terminology shares additional insights into new and stunning aspects of palynology. Lm showing the optical cross section in pollen grain of plantaga coranpus l. Pollen morphology of some species of genus astragalus l. A novel approach to study the morphology and chemistry of. While others confine their investigations to unacetolysed fresh ly. In general, each term is explained on a page of its own, including the definition, plant species, and, if needed, a comprehensive explanation.
In this research, 16 species belong to 6 genera of subfamily caryophylloideae have been studied using light lm and scanning electron microscopy sem for both qualitative and quantitative characters. The descriptive qualitative research was used five different species from three genera as the sample, namely. Gadge baba amravati university campus have been examined by light and scanning. We also presented the the results of morphological characteristics in table 4 and 5. Morphological characteristics of pollen grains have been categorised into different groups. Pollen morphology and ultrastructure of selected species. Sem showing overall view of pollen grain of plantaga caranpus l. Pdf pollen morphology of selected true mangrove species. The present investigations are based on the pollen morphology of four species of clypeola in iran. Pollen morphology of selected bee forage plants shubharani, r. The pollen morphology and ultrastructure of 20 species, representing eight genera of the magnoliaceae are described based on observations with light, scanning and transmission electron microscopy. Pollen morphology and phylogenetic relationships of the. Sem photographs of the pollen grains of allium species. Moss herbarium, department of botany, university of the witwatersrand, p.
Scanning electron microscopy sem images of pollen grains morphology of date palm males phoenix dactylifera l. Pollen grains have a hard coat that protects the sperm cells during the process of their movement between the stamens to the pistil of flowering plants or from the male cone to the female cone of coniferous plants. Proper identification of pollen and spores both of living and fossil plants is a prerequisite for exploiting their applications. Pollen morphology is one of the most important and fundamental branches of palynology. Laboratory of biodiversity and apiculture, department of botany, bangalore university, bangalore560056, india abstract pollen taxonomy is the prerequisite to compare the pollen present in honey samples with special reference to. On the other hand, analysis based on upgma clustering, factor analysis.
This video provides additional pollen miscellaneous morphological information. In most instances one specimen of each species was sampled. The pollen grains are produced within the anther of. Pollen morphology of the african sclerosperma arecaceae. Pollen morphology and infrageneric classification of. It demonstrates the relationship in rank of families, tribes, genera and species 2. Lm showing the optical cross section in pollen grain of plantago major l.
Nastanthus pollen grains are distinguished by angulaperturate apertures, colpar. The morphology of the pollen grains and the exine structure were investigated using light microscopy and scanning electron microscopy. Pollen grains of various species can vary quite a lot in size from about 10 to nearly 100 micrometer. The pollen morphology of subfamily caryophylloideae caryophyllaceae from different phytogeographical region of pakistan has been evaluated. Pollen morphology and its relationship to taxonomy of the genus sarracenia sarraceniaceae w. Description of each type, a key to investigated species as well as sem micrographs of pollen types is provided. Pollen morphology pollen grains medicinal plants archive. Pdf pollen sem morphology in ophrys istriensis from. In part, the pollen data reinforce the traditional view of closely related pairs or small groups of genera. Lamiaceae, lycopus, mentheae, pollen morphology, sem, systematics. In berberis and mahonia the pollen morphology would support separate family status as well as congeneric treatment. Pdf scanning electron microscopy study of pollen morphology of. Pollen morphology and ultrastructure of calyceraceae melanie l.
Morphology of pollen grains 1 polarity the polar axis is the straight line between the distal and proximal poles of a pollen grain or a spore pollen grains can therefore be. On the basis of pollen morphology it is possible to recognize two groups in the genus. Adaptability of scanning electron microscopy to studies of pollen. It will not be an exaggeration if pollen morphology is referred to as the mother of palynological studies. After watching this video you should be able to identify unique morphological features that are less common on pollen.
Sem showing the pore in pollen grain with operculum and annulus in plantaga dancealate l. Pollen morphology and its taxonomic value in brachylaena. Pollen and seed morphology of rhinacanthus nees and sol. P p p p 1 pscience program, department of communication sciences and disorders, emerson college, boston, ma 02116 2 p harvard forest, harvard university, 324 north main street. In this context, the general chapters have been critically revised, expanded and restructured. The basic shape of the pollen grains with chemical treatment was subprolate, prolate and prolatespheroidal and the pollen grains were large 50 mm. Investigations on the pollen morphology of some date palm. Pollen morphology gives an advantage for plant classification. Sexine patterns vary between perforate, microreticulate, reticulate, rugulate and striato.