Plant Genera
نویسندگان
چکیده
منابع مشابه
Why Are Some Plant Genera More Invasive Than Others?
Determining how biological traits are related to the ability of groups of organisms to become economically damaging when established outside of their native ranges is a major goal of population biology, and important in the management of invasive species. Little is known about why some taxonomic groups are more likely to become pests than others among plants. We investigated traits that discrim...
متن کاملPhylogenetic placement of plant pathogenic Sclerotium species among teleomorph genera.
Phylogenetic analyses and morphological characteristics were used to assess the taxonomic placement of eight plant-pathogenic Sclerotium species. Members of this genus produce only sclerotia and no fruiting bodies or spores, so Sclerotium species have been difficult to place taxonomically. Sequences of rDNA large subunit (LSU) and internal transcribed spacer (ITS) regions were determined for is...
متن کاملOcular injuries from plant sap of genera Euphorbia and Dieffenbachia.
Clinical findings in 3 cases of ocular injuries caused by the milky latex from Euphorbia tirucalli and Dieffenbachia sequine were reported. The initial symptoms of all patients were burning pain with subsequently blurred vision. Visual acuity was reduced between 6/30 and 6/20. Euphorbia sap caused punctate erosion, microbullae and Descemet's folds; while Dieffenbachia sap induced conjunctival c...
متن کاملPhytogeographical analysis of seed plant genera in China.
BACKGROUND AND AIMS A central goal of biogeography and ecology is to uncover and understand distributional patterns of organisms. China has long been a focus of attention because of its rich biota, especially with respect to plants. Using 290 floras from across China, this paper quantitatively characterizes the composition of floristic elements at multiple scales (i.e. national, provincial and ...
متن کاملEvaluation of DNA barcodes in Codonopsis (Campanulaceae) and in some large angiosperm plant genera
DNA barcoding is expected to be one of the most promising tools in biological taxonomy. However, there have been no agreements on which core barcode should be used in plants, especially in species-rich genera with wide geographical distributions. To evaluate their discriminatory power in large genera, four of the most widely used DNA barcodes, including three plastid regions (matK, rbcL, trnH-p...
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ژورنال
عنوان ژورنال: Nature
سال: 1954
ISSN: 0028-0836,1476-4687
DOI: 10.1038/173908a0