نتایج جستجو برای: ceratophyllaceae
تعداد نتایج: 11 فیلتر نتایج به سال:
Angiosperms are the most successful plants and support human livelihood and ecosystems. Angiosperm phylogeny is the foundation of studies of gene function and phenotypic evolution, divergence time estimation and biogeography. The relationship of the five divergent groups of the Mesangiospermae (~99.95% of extant angiosperms) remains uncertain, with multiple hypotheses reported in the literature...
در بین نمونه‌های جمع‌آوری شده از فلات اوستیورت از کاراکالپاکستان (ازبکستان) گونه‌های Ceratophyllum submersum (Ceratophyllaceae) و Argusia sibirica (Boraginaceae) شناسائی گردیدند. این گونه ها به همراه یک تصویر نمونه هرباریومی در این مقاله گزارش می‌شوند.
در بین نمونه های جمع آوری شده از فلات اوستیورت از کاراکالپاکستان (ازبکستان) گونه های ceratophyllum submersum (ceratophyllaceae) و argusia sibirica (boraginaceae) شناسائی گردیدند. این گونه ها به همراه یک تصویر نمونه هرباریومی در این مقاله گزارش می شوند.
The use of aquatic plants for phytoremediation is an important method for restoring polluted ecosystems. We sought to analyze the capacity of different aquatic plant species to absorb heavy metals and to summarize available relevant scientific data on this topic. We present a meta-analysis of Cu, Zn, and Cd absorption capacities of aquatic plants to provide a scientific basis for the selection ...
PREMISE OF THE STUDY Recent analyses employing up to five genes have provided numerous insights into angiosperm phylogeny, but many relationships have remained unresolved or poorly supported. In the hope of improving our understanding of angiosperm phylogeny, we expanded sampling of taxa and genes beyond previous analyses. METHODS We conducted two primary analyses based on 640 species represe...
In basal angiosperms (including ANITA grade, magnoliids, Choranthaceae, Ceratophyllaceae) almost all bisexual flowers are dichogamous (with male and female functions more or less separated in time), and nearly 100 per cent of those are protogynous (with female function before male function). Movements of floral parts and differential early abscission of stamens in the male phase are variously a...
Background and aims – Epiphytic diatoms are excellent bio-indicators of the present past ecological condition aquatic ecosystems. In order to reconstruct diatom history evaluate its diversity in Democratic Republic Congo, epiphytic were sampled from herbarium specimens plants deposited at National Herbarium Congo Yangambi (YBI) Meise Botanic Garden (BR).Material methods YBI, nine belonging Nymp...
Contributions from paleobotany, phylogenetics, genomics, developmental biology, and developmental genetics have yielded tremendous insight into Darwin's "abominable mystery"--the origin and rapid diversification of the angiosperms. Analyses of morphological and molecular data reveal a revised "anthophyte clade" consisting of the fossils glossopterids, Pentoxylon, Bennettitales, and Caytonia as ...
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