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Ajouter le résultat dans votre panierEmbryo and seedling morphology of some Trigonella L. species (Fabaceae) and their taxonomic importance / Ann Abozeid in Flora, vol. 230 (Année 2017)
Titre : Embryo and seedling morphology of some Trigonella L. species (Fabaceae) and their taxonomic importance Type de document : texte imprimé Auteurs : Ann Abozeid, Auteur ; Zaki Turki, Auteur ; Fathi El-Shayeb, Auteur ; Zhonghua Tang, Auteur Année de publication : 2017 Article en page(s) : pp. 57-65 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Trigonella
[Thèmes] Morphologie végétaleMots-clés : Stéréo-microscopie Résumé : "The current study aims to evaluate the significance of embryo and seedling characters in the taxonomy of genus Trigonella L. Embryo and seedling morphology of 33 accessions of the genus belonging to 9 sections were examined using stereo-microscopy. Observation showed considerable variations among the studied taxa. The different types of embryos and seedlings were illustrated, compared and analyzed based on morphological characters such as cotyledons shape and colour, radicle shape and position, prophyl leaf shape and margin and their taxonomic importance were discussed. Our phenetic analysis partially supported the sectional classification of section Falcatulae and Foenum-graecum based on existing morphological data. However, section Callicerates seemed to be more closely related to section Cylindricae and not to section Verae, that is not consistent with the phylogenetic analysis and morphological features. Thus, we can say that embryo and seedlings characters are taxonomically important but cannot be used alone for sectional classification of Trigonella." (source : auteurs) Type de publication : périodique Référence biblio : Abozeid A., Turki Z., El-Shayeb F., Tang Z., 2017 - Embryo and seedling morphology of some Trigonella L. species (Fabaceae) and their taxonomic importance. Flora, 230 : 57-65. Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66237
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Titre : Ramenta morphology and its variations in Rafflesia (Rafflesiaceae) Type de document : texte imprimé Auteurs : Agus Susatya, Auteur ; Siti Hidayati, Auteur ; Kamarudin Mat-Salleh, Auteur ; Ridha Mahyuni, Auteur Année de publication : 2017 Article en page(s) : pp. 39-46 Langues : Anglais (eng) Résumé : "Ramentae are hair-like structures found on the perigone tube and diaphragm in species of Rafflesia (Rafflesiaceae). Although ramenta morphology provides an important taxonomic character, a consistent terminology has not been used in species descriptions. As such, morphological comparisons among species as well as among populations within a species are difficult. We used a variety of resources to document the morphology including the location and density of ramenta among 18 species of Rafflesia and between populations and/or sexes of two species. We identified five types of ramenta: tuberculate, filiform, swollen apex, toadstool, and fence-like and recognized several variations within each type. Ramenta types characterize four species complexes: R. patma (tuberculate), R. arnoldii (filiform), R. pricei (mostly swollen apex), and R. hasseltii (mostly toadstool). Our classification of ramenta offers a tool for using consistent terminology to re-evaluate previously described species and to define new species of Rafflesia. " Type de publication : périodique Référence biblio : Susatya A., Hidayati S., Mat-Salleh K., Mahyuni R., 2017 - Ramenta morphology and its variations in Rafflesia (Rafflesiaceae). Flora, 230 : 39-46. DOI : 10.1016/j.flora.2017.03.001 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66241
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