Brassicaceae is an important plant family considering the com. The species was studied in terms of detailed morphology. Brassicaceae maybe 814 mya in s china, allowing a rapid westward radiation of the brassicogethes clade. A key agricultural genus of the brassicaceae family is the brassica genus which contains oilseed canola, mustard and vegetable cabbage, broccoli, bok choy crops with a long history of agricultural usage on all the continents chen et al. Pdf pollen, seed and fruit morphology of the genus hesperis. Hence, palynological characters are significant only at specific levels. Pollen slides were prepared the with technique of wodehouse 5 and photographed by the leica dm 750 digital imaging system.
Ul haq, muhammad asad ghufran, lubna, shafiq ahmad, shomaila ashfaq. Pollen morphology is one of the significant tools in solving some taxonomic problems on the family, generic or specific. Effects of soil metals on plant morphology, metal accumulation, plantpollinator interactions, and pollen pistil interactions by george a. Pollen morphology of 8 species of the genus arabidopsis brassicaceae from pakistan has been examined by light microscopy. Pollen morphology was examined in amphidiploid and amphidaploid inter specific hybrids between brassica oleracea l. Abstract pollen morphology of 8 species of the genus arabidopsis brassicaceae from pakistan has been examined by light microscopy. The fourth approach has been to investigate withinplant variation in floral mor. Pollen, seed and fruit morphology of the genus hesperis l. Pollen morphological studies of brassicaceae have been carried out by several authors abdelkhalik 2002. Inaperturate angiosperm pollen grains, whose walls can only be escaped by wall.
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. Pollen grains are usually prolate to subprolate with 34 colpate. Pdf pollen morphology of six species previously placed. Pollen from arabidopsis thaliana and other brassicaceae are. Pdf pollen morphology and localization of ni in some ni. Pdf pollen morphology of six species previously placed in. We found that the pollen of thlaspi are usually bilateral symmetric and anisopolar. Flower morphology and pollen germination in the genus. Pollen morphology of the oklahoma narrowly endemic plants. The pollen grains varied in shape from prolatespheroidal, subprolate to prolate. Colpus length and width, pollen shape, exine and intine thickness, and polar and equatorial axes of pollens were measured from at least 30 pollen grains. Variation in floral morphology and reproductive success in. Morphology, anatomy and karyology of endangered turkish.
Mar 06, 2021 background meligethes are pollen beetles associated with flowers of rosaceae as larvae. Pollen morphology and localization of ni in some nihyperaccumulator taxa of alyssum l. Pollen 123 pollen morphology and its taxonomic significance of the genus arabis brassicaceae in turkey 1945 b figs. Pollen morphology and its taxonomic significance of the. Pollen grains are usually free, radially symmetrical, isopolar, suboblate to oblatespheroidal, or prolatespheroidal to. They are prolate, subprolate, perprolate or spheroidal, with the polar axis ranging from 14. The results reinforced the significance of pollen morphological features of family brassicaceae and aid. Based on the measurements, the pollen grains were tricolpate with a prolate shape in agreement with other brassicaceae pollen features. Anatomical and morphological structures see more details slides were prepared according to the acetolysis method. All pollen grain shapes of said species were separately calculated. Pollen morphological study of some plant taxa from. The tectum is usually microperforate, rarely slightly or coarsely rugulose.
Pollen morphology of the genus clypeola brassicaceae in. The pollen terminology in general follows faegri and iversen 1989, punt et al. Pdf pollen, seed and fruit morphology of the genus. Pollen morphology of 39 species belonging to 23 genera of the tribes arabideae, euclidieae, hesperideae, lunarieae, matthioleae and sisymbrieae from brassicaceae from egypt were studied by using. In this study, pollen from taxa representing all of the genera in the tribe. Taxonomic importance of pollen morphology for some. Rollins and banerjee 1979 demonstrated the existence in the new world of several genera with 411colpate pollen. Keywords arabis brassicaceae infrageneric classification morphology pollen introduction arabis l.
Brassicaceae family has many common vegetables that are consumed all through the world. The results reinforced the significance of pollen morphological features of family brassicaceae and aid for valuable taxonomic tool in plant systematics. A comparative palynological study of 22 taxa 9 of which are endemic of the genus arabis l. The results showed that the pollen grains of all observed species were prolatepe 1. But in brassicaceae the stamens are tetradynamous and not in papaveraceae. Pdf pollen morphology of some tribes of brassicaceae. Pollen morphology of 39 species belonging to 23 genera of the tribes arabideae, euclidieae, hes. Flowers are borne singly on a pyramidal racemose inflorescence upper left corner, where the internodes elongate acropetally postanthesis. The first major pollen type is spinulose and 41 species exhibited this type of ornamentation. The pollen grains of three of the species were 3colpate, while in c. Pollen morphology of eight species of sterigmostemunbrassicaceaewas observed by using scanning electron microscope for the first time. Pdf pollen and seed morphology of the genus hesperis l. The brassicaceae is an ideal group to investigate this pollen evolution question.
To study the pollen morphology for ten species representing 9 genera and 5 tribes of brassicaceae the light microscope lm and scanning electron microscope sem. Brassicaceae in austria and their taxonomic value 18. Systematics and phylogeny of the brassicaceae cruciferae. The terminology for pollen morphology followed punt et al. The pollen grains are produced within the anther of the. Members of the brassicaceae have a dry stigma, which refers to the absence of freeflowing surface secretions. However, the species of this genus show little variation in shape, size, colpi length and exine pattern. The anatomy and morphology of stamens and carpels of cruciferous flower bears testimony to a papaverous ancestory.
Pollen grains are usually prolate to subprolate with 34 colpate, syncolpate and reticulate tectum. Pollen wall morphology, studied since the 17th century grew, 1682. Variation found in thickness of exine and other characters proved to be helpful at generic and specific level. Pollen morphology of an endangered, endemic anatolian. All the pollen mentioned in this study have tricolpate apertures. Brassicaceae in turkey nur munevver pinar1, ahmet duran2, talip ceter3, g. Although the brassicaceae was once thought to be exclusively stenopalynous i. Pollen morphology is similar to wellestablished phlox pollen types. Pollen morphology of the genus clypeola brassicaceae in iran.
This genus currently consists of 63 known species in two subgenera, meligethes and odonthogethes, predominantly occurring in the eastern palaearctic. Taxonomic importance of pollen morphology for some species of. A floral morphology of stanleya elata thelypodieae. Pdf taxonomic importance of pollen morphology for some. Therefore, this study aimed to investigate and describe the pollen morphology of 10 species belongs to 9 genera and five tribes of brassicaceae from eastern. Comparison of floral diagram indicates that brassicaceae is closely allied to capparidaceae. Pakistan has been examined by light and scanning electron. The endangered plant rauwolfia serpentina reveals 3colpate type of pollen grain. Brassicaceae, belonging to six sections, was conducted with acetolyzed and nonacetolyzed pollen grains using light microscopy lm and scanning electron microscopy sem.
Brassicaceae free download as powerpoint presentation. Centaurea, cyanus, psephellus, pollen morphology, lm, sem. Flower morphology and pollen germination in the genus capsella. Pollen morphology of selected crop plants from southern. Nilhan tug1 1ankara university, science faculty, department of biology, 06100 tandogan, ankara turkey 2selcuk university, education faculty, department of biology education, 42090 meram, konya turkey. The tribe camelineae brassicaceae contains eight genera. A series of flowers 1, 2, and 3 d after flower opening are shown on the right. Pollen morphology and ultrastructure of selected species of. The reticulate surface of leavenworthia pollen is similar to other cardamineae, as well as to the pollen of other members of the brassicaceae. A key to the species based on pollen morphology is provided. Brassicaceae, belonging to six sections, was conducted with. For the sem the pollen was placed directly on brass stubs without treatment and mounted onto a metallic stub with a doublesided adhesive tape.
Pollen morphology of 77 species belonging to 36 genera of the family brassicaceae from. Studies on the pollen morphology of the genus alyssum. Pollen morphology of some tribes of brassicaceae from. Pdf pollen morphology of some tribes of brassicaceae from. Pollen morphology has provided an approach to the systematic relationships among the genera of the brassicaceae dogan and inceoglu 1990, brochmann 1992, khan 2004, p. Pollen morphology and its taxonomic significance of the genus arabis brassicaceae in turkey pollen morphology and its taxonomic significance of the genus arabis brassicaceae in turkey mutlu, birol. Anchev and deneva 1997 investigated 17 brassicaceae species and they classified its pollen into two types. Erdtman, 1952, is better described than wall materials and known for most pollen grains to include a sporopollenin exine outside a cellulosic and pectinrich intine. Microscopic investigation of pollen morphology of brassicaceae from central punjab. The pollen grains are boatshaped with a single elongate aperture on the distal face. Pollen morphology of interspecific hybrids of brassica oleracea and. Pollen capture and adhesion to the stigmatic papillae. May 01, 2017 the tribe camelineae brassicaceae contains eight genera. Jan 01, 2014 the reticulate surface of leavenworthia pollen is similar to other cardamineae, as well as to the pollen of other members of the brassicaceae.
Dec 01, 20 the impressive speed of the pollen development in capsella species becomes obvious when compared to other brassicaceae genera. Apr 09, 2014 the reticulate surface of leavenworthia pollen is similar to other cardamineae, as well as to the pollen of other members of the brassicaceae. Pdf pollen morphology and its taxonomic significance of the. However, these vegetables also produce high amounts of byproducts, therefore, as an example given dominguezperles et al.
Three main types and 2 subtypes were recognized based on the seed coat surface, pollen shape, and exine sculpturing. The seed coat ornamentation of type i was ocellate, and pollen shape was oblate. The family cruciferae includes 380 genus and 3000 species world. In this study, the morphology, anatomy, pollen morphology, leaf and seed micromorphology and karyology of the turkish endangered endemic physoptychis haussknechtii were investigated in detail for the fi rst time. Pdf pollen morphology and its taxonomic significance of. The most grown and utilized brassica vegetables include brassica oleracea and brassica rapa which are almost completely edible. Pollen morphology and ultrastructure of selected species. The pollen morphology of 29 taxa, 24 of which are endemic to turkey, was investigated in detail by light and. These descriptions are considered extensions of the original taxonomic descriptions, which lacked pollen morphology. The pollen morphology and exine structure of four clypeola species were investigated using light microscopy and scanning electron microscopy. A molecular framework controlling style morphology in. In this study, the pollen morphology of 22 turkish taxa 12 of which are endemic of the taxonomically complex genus thlaspi l.
Pakistan the intention of the current study is to provide an account on the palynological. Morphology of flowering plants cruciferae or brassicaceae. Comparison of the micromorphology and ultrastructure of pollen. Pdf pollen morphology of some tribes of brassicaceae from egypt. Pollen and seed morphology of nordic draba brassicaceae.
Dietrich school of arts and sciences in partial fulfillment. Pollen morphology of 10 species of brassicaceae as detected by lm. Morphological study, pollen grains, some species of brassicaceae. Pollen morphology is one of the significant tools in solving some taxonomic problems on the family, generic or specific level and has become part of the multidisciplinary and collaborative approach in plant systematic and evolution. International journal of balkan flora and vegetation, year2012, volume18, pages1724. Sep 22, 2012 a comparative palynological study of 22 taxa 9 of which are endemic of the genus arabis l. We analyzed 74 morphological and ecological characters 169 states of all species, as well as of 11 outgroup species from 7 meligethinae genera including. Request pdf microscopic investigation of pollen morphology of brassicaceae from central punjab.
Anchev m, deneva b 1997 pollen morphology of seventeen species from the family brassicaceae cruciferae. The evolutionary shift frequently happens parallel within many families and genera, for example within the brassicaceae family. A molecular framework controlling style morphology in brassicaceae sara simonini, pauline stephenson and lars ostergaard abstract organ formation in multicellular organisms depends on the coordinated activities of regulatory components that integrate developmental and hormonal cues to control gene expression and mediate celltype. Pollen morphology of some species of the genus malcolmia. Pollen beetles, rosaceae, brassicaceae, evolution, hostshift, palaearctic region background nitidulidae, with almost 4500 known species, is a midsized family of the order coleoptera.
As a result of acetolysis, pollen shape varied considerably. Pakistan hafiza amina department of plant sciences, quaid. The pollen of alyssum, which is a stenopalynous genus, is tricolpate with a reticulate tectum. It is a natural group, which has profound agronomic, economic and research import and a high level of variation in floral morphology and size. Studies of brassicaceae pollen are numerous at both familial and. Columellae are often irregular, but welldeveloped columellae do occur in some taxa. Taxonomic importance of pollen morphology for some species of brassicaceae. Pdf pollen morphology of 39 species belonging to 23 genera of the tribes arabideae, euclidieae, hesperideae, lunarieae, matthioleae and sisymbrieae.
Intrageneric comparative analyses of pollen performance in natural populations of brassicaceae species and its impact on speciation are rare. Pollen morphology of some tribes of brassicaceae from egypt and. Morphology of pollen grains equatorial and polar axes length, shape and size. Meindl bs, humboldt state university, 2007 ma, humboldt state university, 2009 submitted to the graduate faculty of the kenneth p. Little is known about pollen morphology in these taxa, and this limits research on gene flow, aerobiology, reproductive biology, systematics and palaeobotany. Research open access rosaceae, brassicaceae and pollen beetles. Their shape varies from prolate spheroidal, subprolate to prolate. According to the investigation, pollen grains of these five taxa are radially symmetrical, isopolar, oblate spheroidal or prolate spheroidal, tricolpate and reticulate. Pollen morphology of selected camelineae brassicaceae. Brassicaceae, bulgaria, chromosome numbers, embryology, gametophitic apomixis, pollen quality, speciation introduction in the course of biosystematic studies of the family brassicaceae in bulgarian flora ancev 2001, a few specimens morphologically close to cardamine rivularis, and a sample of live plants from a collection. Th e exine itself is further divided into an outer, oft ensculpted sexine and inner, continuous. 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. Unfortunately, most of these results were obtained from herbarium specimens.
Pollenstigma adhesion in the brassicaceae oxford academic. Morphological characteristics of pollen grains have been categorised into different groups. Pollen wall degradation in the brassicaceae permits cell. Pollen analysis of heliophila brassicaceae using scanning. Pollen morphology of brassicaceae has been investigated by several authors 8,9,10,11, 12, examined pollen morphology of brassicaceae from jordan, while 14 studied pollen morphology of the. Pollen morphology of some tribes of brassicaceae from egypt. The intensive study of pollen morphology has added a new dimension to angiosperm taxonomy, of particular value at the generic level. Pollen morphology and its taxonomic significance of the genus. Arabidopsis, camelina, capsella, catolobus, chrysochamela, neslia, noccidium and pseudoarabidopsis.
Two major pollen types were found to be distinct in their ornamentation and one minor pollen type was also identified. The intention of the current study is to provide an account on the palynological features of brassicaceae from central punjab. Pollen morphology of an endangered, endemic anatolian species. Sep 22, 2012 pollen morphology and its taxonomic significance of the genus arabis brassicaceae in turkey pollen morphology and its taxonomic significance of the genus arabis brassicaceae in turkey mutlu, birol. Pollen morphology of the oklahoma narrowly endemic. Jan 01, 2014 these descriptions are considered extensions of the original taxonomic descriptions, which lacked pollen morphology.
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