Seed coat diversity in some tribes of Cucurbitaceae: implications for taxonomy and species identification

  title={Seed coat diversity in some tribes of Cucurbitaceae: implications for taxonomy and species identification},
  author={Samia Heneidak and Kadry N. Abdel Khalik},
  journal={Acta Botanica Brasilica},
Abstract: To evaluate their diagnostic value in systematic studies, seed coat morphology for 16 taxa from 11 genera of Cucurbitaceae were examined using stereomicroscopy and scanning electron microscopy. The taxa included representatives of the tribes Benincaseae, Bryonieae, Coniandreae, and Luffeae in order to evaluate their diagnostic value in systematic studies. Macro- and micromorphological characters of their seeds are presented, including shape, color, size, surface, epidermal cell shape… 

Figures and Tables from this paper

Taxonomic Significance of Anthers and Pollen grains of Some Species of Solanaceae from Egypt
: Thirteen species of the Solanaceae from Egypt were examined for their anther characteristics and the pollen morphology using LM and SEM. The investigated species representing nine genera viz.
Achene micromorphology and its taxonomic significance in some species in Taraxacum sect. Palustria (Asteraceae)
It has been shown that traits associated with achene morphology and micromorphology have a high diagnostic value, allowing us to distinguish sections as well as species within the sect.
Taxonomic and functional diversity of cultured seed associated microbes of the cucurbit family
The seeds of economically important cucurbits tested in this study have a culturable core microbiota consisting of Bacillus species with potential to contribute diverse nutrient acquisition and growth promotion activities to their hosts.
Micromorphology and anatomy of fruits and seeds of bitter melon (Momordica charantia L., Cucurbitaceae)
A detailed anatomical description on cross-sections of immature fruits and seeds in Momordica charantia L. (Cucurbitaceae) may offer a set of additional character useful for the characterization of the genus.
Evaluation of Morphological and Anatomical Characters for Discrimination and Verification of Some Medicago sativa (L.) Cultivars
The dendrogram showed that the Egyptian cultivar Nubaria was the most distant and clustered separately from all the other alfalfa cultivars which were grouped into two main clusters, and suggested the presence of variations in anticlinal boundaries and periclinal walls that provide stable diagnostic characters for morphologically closely related taxa.
Detailed macro and micromorphology of grasses caryopsis using scanning electron and light microscopy
Both macro and micromorphological characters especially caryopsis shape and surface morphology were found significant in the taxonomic diagnosis and were useful for the diagnosis of genus and species.
Seed shape quantification in the order Cucurbitales
The results obtained for 29 species in the family Cucurbitaceae support a relationship between seed shape and species ecology and the values of J index give the percent of similarity of the image of a seed with a geometric figure.
Short Communication: Further morphological evidence for separating Mukia Arn. from Cucumis L.
Pratami, MP Chikmawati T, Rugayah. 2019. Short Communication: Further morphological evidence for separating Mukia Arn. from Cucumis L.. Biodiversitas 20: 211-217. Mukia Arn. is closely related to
Bacterial Seed Endophytes of Domesticated Cucurbits Antagonize Fungal and Oomycete Pathogens Including Powdery Mildew
Results show that seeds of cultivated cucurbits package microbes with significant disease-suppression potential, and it is proposed that these agents are mimicking the ecological niche established by their endophytic cousins.
MC03g0810, an Important Candidate Gene Controlling Black Seed Coat Color in Bitter Gourd (Momordica spp.)
Seed coat color is one of the most intuitive phenotypes in bitter gourd (Momordica spp.). Although the inheritance of the seed coat color has been reported, the gene responsible for it is still


Systematic implications of seed coat diversity in some representatives of the genus Ipomoea (Convolvulaceae)
Seed coat morphology of 15 species of Ipomoea L. was examined comparatively using scanning and light microscopy methods in order to evaluate their diagnostic value for systematic studies, and results of the seed character analyses offer useful data for evaluating the taxonomy of Impea both on subgeneric and sectional levels.
Systematic significance of seed morphology in the genus Veronica (Plantaginaceae), with special reference to the Egyptian taxa
Seed morphology of 29 taxa including 9 subgenera belonging to the genus Veronica was compared using scanning electron microscopy to assess their diagnostic value for systematic studies and justify placement of V. peregina within sub genus Beccabunga and support the monophyly of the subgenus Veronica.
Seed morphology of some tribes of Brassicaceae (implications for taxonomy and species identification for the flora of Egypt)
Seed morphology of 45 taxa belonging to 23 genera of Brassicaceae were examined using light and scanning electron microscopy. The taxa included representatives of the tribes Arabideae, Euclidieae,
Taxonomic importance of seed morphology in Gentiana (Gentianaceae)
Seed micromorphology of the poorly known sections Pneumonanthe, Frigidae and Isomeria is investigated and reveals that seed micronorphology supports the reassignment of some taxa incertae sedis within Gentiana.
Seed and trichome morphology of the Egyptian Fagonia (Zygophyllaceae) with emphasis on their systematic implications
Seed and trichome morphology of 13 taxa representing the genus Fagonia in Egypt have been studied using light (LM) and scanning electron microscopy (SEM). Macro- and micro-morphological characters,
Seed micromorphological survey of the Minuartia species (Caryophyllaceae) in Iran
The results showed that seed micromorphology might provide useful tools in recognition and separation of Min Stuartia hamata (Hausskn.) Mattf.
Seed Surface Sculpturing and Its Systematic Significance in Gilia (Polemoniaceae) and Segregate Genera
Seed surface sculpturing was examined comparatively from 46 species of Gilia sensu lato and 32 species representing other genera of Polemonioideae, and five of the six surface characters were homoplastic, with consistency indices ranging from 0.71 to 0.88.
Notes on Lagenaria and Cucurbita (Cucurbitaceae) -review and new contributions
An overview of the genus with special consideration of seed coat characteristics is presented and the Vinous Styrian Oil-pumpkin, with thin-coated seeds, is treated in respect of its cultivars, history, breeding and importance in Styria.