Bibliographies thématiques / Podalyrieae

Littérature scientifique sur le sujet « Podalyrieae »

Auteur : Grafiati
Publié le 27 juillet 2024
Mis à jour le 28 juillet 2024

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Articles de revues sur le sujet "Podalyrieae"

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Van Wyk, Ben-Erik, et Pieter J. D. Winter. « Chemotaxonomic value of anthocyanins in Podalyria and Virgilia (tribe Podalyrieae : Fabaceae) ». Biochemical Systematics and Ecology 22, no 8 (décembre 1994) : 813–18. http://dx.doi.org/10.1016/0305-1978(94)90085-x.

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Schutte, A. L. « FABACEAE : CYCLOPIA SQUAMOSA (PODALYRIEAE), A NEW SPECIES FROM THE SOUTHWESTERN CAPE PROVINCE ». Bothalia 22, no 2 (14 octobre 1992) : 190–92. http://dx.doi.org/10.4102/abc.v22i2.840.

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Schutte, A. L. « FABACEAE ». Bothalia 27, no 1 (7 octobre 1997) : 43–45. http://dx.doi.org/10.4102/abc.v27i1.652.

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Schutte, A. L. « Systematics of the genusCyclopiaVent. (Fabaceae, Podalyrieae) ». Edinburgh Journal of Botany 54, no 2 (juillet 1997) : 125–70. http://dx.doi.org/10.1017/s0960428600004005.

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Cyclopiais a papilionaceous genus endemic to the Western and Eastern Cape Provinces of South Africa. The 23 species recognized within the genus have rather subtle differences, but characters of the leaves, bracts and calyces, as well as the adaptations to survive recurrent fires, are useful to distinguish between the species. Variations in morphological, cytological and chemical characters are discussed. A phylogenetic analysis of 21 characters by means of cladistic methodology produced a cladogram with five distinct groups. These are described as sections in the taxonomic part of the paper. One new species,Cyclopia alopecuroidesA.L. Schutte, is described. The nomenclature, synonymy and typification of the taxa are presented, as well as full descriptions, illustrations and distribution maps.
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Van Der Bank, Herman, Michelle Van Der Bank et Ben-Erik Van Wyk. « Allozyme Variation in Virgilia oroboides (Tribe Podalyrieae : Fabaceae) ». Biochemical Systematics and Ecology 23, no 1 (janvier 1995) : 47–52. http://dx.doi.org/10.1016/0305-1978(94)00070-w.

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Wyk, Ben-Erik, et Anne Lise Schutte. « Stirtonanthus, a new name for Stirtonia (Leguminosae, tribe Podalyrieae) ». Nordic Journal of Botany 15, no 1 (mars 1995) : 67. http://dx.doi.org/10.1111/j.1756-1051.1995.tb00123.x.

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Lemaire, Benny, Jannick Van Cauwenberghe, Brecht Verstraete, Samson Chimphango, Charles Stirton, Olivier Honnay, Erik Smets, Janet Sprent, Euan K. James et A. Muthama Muasya. « Characterization of the papilionoid– Burkholderia interaction in the Fynbos biome : The diversity and distribution of beta-rhizobia nodulating Podalyria calyptrata (Fabaceae, Podalyrieae) ». Systematic and Applied Microbiology 39, no 1 (février 2016) : 41–48. http://dx.doi.org/10.1016/j.syapm.2015.09.006.

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Stepanova, A. V., A. A. Oskolski, P. M. Tilney et B. E. Van Wyk. « Wood anatomy of the tribe Podalyrieae (Fabaceae, Papilionoideae) : Diversity and evolutionary trends ». South African Journal of Botany 89 (novembre 2013) : 244–56. http://dx.doi.org/10.1016/j.sajb.2013.07.023.

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Wyk, Ben-Erik, et Anne Lise Schutte. « Stirtonia, a new genus of the tribe Podalyrieae (Leguminosae) from South Africa ». Nordic Journal of Botany 14, no 3 (juillet 1994) : 319–25. http://dx.doi.org/10.1111/j.1756-1051.1994.tb00612.x.

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VAN DER BANK, MICHELLE, MARK W. CHASE, BEN-ERIK VAN WYK, MICHAEL F. FAY, FREDERICK H. VAN DER BANK, GAIL REEVES et ALAN HULME. « Systematics of the tribe Podalyrieae (Fabaceae) based on DNA, morphological and chemical data ». Botanical Journal of the Linnean Society 139, no 2 (juin 2002) : 159–70. http://dx.doi.org/10.1046/j.1095-8339.2002.00051.x.

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Thèses sur le sujet "Podalyrieae"

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Basic, Dunja. « Phosphorous uptake rate in two low phosphorous updated species, Aspalathus linearis and Podalyria calyptrata ». Bachelor's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/24850.

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Due to the low P nature of soils within the fynbos biome of the Cape Floristic Region, plants have developed numerous mechanisms which enable them to better acquire phosphorous. A number of species have been reported to have specialised root morphologies (root clusters, mycorrhizae) that enhance P uptake. Plants may also down-regulate the uptake of P by decreasing the expression of genes that encode P transporters. Two Fabaceae species, Podalyria calyptrata and Aspa/athus linearis, were grown in hydroponics for 5 months at a low P supply of 4μM and P-depletion studies were conducted thereafter at 5 levels of external P (4, 10, 20, 50 and lOOμM). Growth rates (biomass accumulation) were also calculated as were root to shoot ratios for both species. A. linearis had a higher uptake rate than P. calyptrata. While the fresh biomass growth rate was similar in both species, P. calyptrata had a higher dry weight root to shoot ratio than A. linearis. The results showed that both species exhibited a lack of response to increasing P concentrations and had similar RGRs. Their uptake rates differed significantly (p<0.05) and this was likely due to their different root:shoot ratios. This indicates that both species would effectively grow in low P soils and in the case of P. calyptrata, in high P soils as well.
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Maistry, Pravin Mark. « Aspalathus and Podalyria legumes balance acquisition of phosphorus and nitrogen for growth in nutrient poor fynbos soils ». Doctoral thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15705.

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Legume species nodulate and grow successfully in the Core Cape Subregion, a Mediterranean-climate ecosystem with fynbos vegetation found on infertile soils. The physiological mechanisms enabling tolerance of low availability of phosphorus (P) are yet to be reported in Cape legume species such as Aspalathus linearis and Podalyria calyptrata; species that demonstrated traits typical of plants from nutrient poor soils. In the three research chapters of the thesis, it was anticipated that low P supply would limit plant growth and increase expression of traits for P acquisition.
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Boatwright, James Stephen. « A phylogenetic study of the tribe Podalyrieae (Fabaceae) ». Thesis, 2012. http://hdl.handle.net/10210/6125.

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M.Sc.
The tribe Podalyrieae is a group of Papilionoid legumes that are largely endemic to the Cape Floristic Region of southern Africa. A phylogenetic study of the tribe was undertaken using gene sequences obtained from the internal transcribed spacer (ITS) as well as the plastid gene rbcL. Although the resolution was poor in the resulting trees, several groupings were noted within the tribe. The subtribe Xiphothecinae remains relatively unchanged and consists of the genera Amphithalea and Xiphotheca. The subtribe Podalyriinae was found to be paraphyletic. A close relationship was observed between the genera Liparia and Podalyria with Stirtonanthus as sister. Additional chloroplast genes (trnL-F and trnS-trnG) were sequenced to obtain better resolution within this group. While Podalyria and Stirtonanthus are monophyletic, the monophyly of Liparia is still uncertain. Virgilia and Calpurnia are closely related and Cyclopia retains its isolated, monophyletic position sister to the tribe. The species of Cadia included in the phylogenetic analysis formed a sister grouping to the tribe Podalyrieae and the inclusion of this genus in Podalyrieae is discussed. A date for the root node of the tribe was estimated at 28.55 MYA, using non-parametric rate smoothing (NPRS), indicating a major radiation to have taken place during the Pliocene. By means of independent contrasts it was determined that the rate of molecular evolution is higher in reseeders than resprouters, perhaps due to more reproductive cycles in these individuals, that would in turn affect the rate of DNA substitution.
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Du, Toit Nicole. « Molecular phylogenetics of Cyclopia Vent.and its position within Podalyrieae (Fabaceae) ». Thesis, 2008. http://hdl.handle.net/10210/236.

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The tribe Podalyrieae is a diverse and interesting group with most of its species found in the Cape Floristic Region (120 out of 128 species), the smallest floral kingdom and the subject of intense conservation interest. DNA sequence data from nuclear ribosomal internal transcribed spacer, including the 5.8s coding region, were used to reconstruct the phylogeny of this Cape Floral Clade. Results support a transfer of Cadia (Sophoreae) to Podalyrieae. Cyclopia is well imbedded in a paraphyletic Podalyriinae and not sister to the tribe as previously suggested. A broader concept of Podalyrieae, which include Podalyriinae, Xiphothecinae and Cadia is suggested. Dating the nodes of the phylogenetic tree using non-parametric rate smoothing with a fossil calibration point indicates that the root node of Podalyrieae (+ Cadia) is 34.35MYA.
Dr. M. van der Bank
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Van, der Bank Michelle. « Genetic variation and phylogenetic relationships in the Podalyrieae and related tribes (Fabaceae) ». Thesis, 2012. http://hdl.handle.net/10210/7518.

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Ph.D.
Genetic variation estimates and phylogenetic studies (based on genetic differentiation) of the Podalyrieae and related tribes (family Fabaceae) are presented. The tribe is endemic to the Cape fynbos region of South Africa, except for Calpurnia. Although Podalyrieae have been the focus of many taxonomic studies no genetic variation studies have been done on this group of plants. Genetic variation in selected populations, species and genera was studied to evaluate the use of enzyme electrophoresis in systematic studies on these three levels. Eight case studies are presented. Allelic data proved to be extremely useful at the population and congeneric species level. However, at a higher level, it showed some potential when treated with caution. It is not possible to predict beforehand if meaningful results can be obtained at this higher (i.e. confamilial genus) level of divergence. A large number of plant genetic data sets from the literature was analysed to determine typical levels and ranges of genetic differentiation within families, genera and species. A graph of probability against taxonomic rank was constructed and compared with results published by Thorpe (1982, 1983). The results indicate that plant taxa have a reduced biochemical evolution (less diverse than animals at comparable taxonomic ranks) in contrast to Thorpe's (1982, 1983) reports (which were based on less data for plant taxa). Genetic identity values between 3041 pairs of taxa were used in the present study. The phylogenetic relationships among genera of the tribe Podalyrieae were estimated from sequences of the internal transcribed spacer (ITS) region of nuclear ribosomal DNA as well as morphological and chemical data. Morphological and. ITS sequence data produced cladograms with similar topologies, both supporting the exclusion of Hypocalyptus from Podalyrieae. A broadening of Podalyrieae, which includes Xiphothecinae, Podalyriinae and Cyclopia, is suggested. The multidisciplinary approach followed in this study provided a better understanding of taxonomic and evolutionary relationships in the Podalyrieae and some other Cape legumes.
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Livres sur le sujet "Podalyrieae"

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Polhill, R. M., Jonathan Timberlake, G. V. Pope et E. S. Martins. Papilionoideae-Loteae, Galegeae, Vicieae, Cicereae, Trifolieae, Podalyrieae, Crotalarieae, Genisteae. Kew Publishing, 2003.

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Chapitres de livres sur le sujet "Podalyrieae"

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Hegnauer, Robert, et Minie Hegnauer. « Podalyrieae (Abb. 125) ». Dans Chemotaxonomie der Pflanzen, 946–62. Basel : Birkhäuser Basel, 2001. http://dx.doi.org/10.1007/978-3-0348-7986-6_28.

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