نتایج جستجو برای: bidens
تعداد نتایج: 636 فیلتر نتایج به سال:
The phyllostomid bat genus Vampyressa often has been allied with Uroderma, Chiroderma, Platyrrhinus, Vampyrodes, and Mesophylla. However, the relationships among the genera have proven difficult to resolve, and a number of studies have suggested that Vampyressa is not monophyletic. Mesophylla includes a single species, which some taxonomists have placed in Vampyressa and others in the more dist...
Common beggar’s-tick is an annual weed commonly found in citrus groves in Florida. A series of laboratory and greenhouse experiments were conducted to determine the germination response of common beggar’s-tick to various environmental factors that influence seed survival, germination, and dormancy. The results suggest that common beggar’stick germinated over a wide range of temperatures (15 to ...
The Oriental species of Apsilocera Bouček, 1956 (Hymenoptera: Pteromalidae) are revised and the limits of the genus are reevaluated. Bulolosa Bouček, 1990 and Kratinka Bouček, 1988 are treated as synonyms of Apsilocera, syn. n. Bulolosa bidens Bouček and Kratinka brevis Bouček are transferred to Apsilocera as A. bidens (Bouček) and A. brevis (Bouček) comb. n., respectively. Twelve new species (...
Bidens pilosa L. is a cosmopolitan annual herb, known for its traditional use in treating various diseases and thus much studied for the biological activity of its extracts, fractions and isolated compounds. Polyacetylenes and flavonoids, typical metabolite classes in the Bidens genus, predominate in the phytochemistry of B. pilosa. These classes of compounds have great taxonomic significance. ...
Bidens pilosa is used as an ethnical medicine for bacterial infection or immune modulation in Asia, America and Africa. Here, we employed n IFNpromoter-driven luciferase reporter construct and T cells to characterize immunomodulatory compounds from this plant based on a ioactivity-guided isolation principle. We found that PHA, a positive control, caused a six-fold increase in IFNpromoter activi...
جنسهای bidens و eclipta در ایران مطالعه گردیده و نتایج حاصله شامل کلید شناسایی، سوابق تحقیق، گزارش گونه جدید برای ایران و گزارش لیست جدید رویشگاهها ارایه میگردد.گونهbidens bipinnata از تیره کاسنی به عنوان یک گونه جدید برای فلور ایران گزارش می گردد. رویشگاه دقیق این گونه نیز بر اساس محل جمع آوری نمونه های هرباریومی ارایه شده است.گیاه eclipta alba که در فلورا ایرانیکا تنها از منطقه گرگان گزا...
We present a symbolic analysis of the ephemerizer’s protocol by Radia Perlman, using the CL-Atse tool from the AVISPA’s tool-suite. This protocol allows transmitting a data that will “disappear” (i.e. cannot be retrieved) after a certain time. We show that this protocol is secured for this property plus the secrecy of the data, but is trivially non secured for it’s integrity. Therefore, we pres...
UNLABELLED PREMISE OF THE STUDY Microsatellite markers were developed in the invasive species Bidens alba (Asteraceae) to assess its population structure and to facilitate tracking its expansion in China. • METHODS AND RESULTS Using 454 pyrosequencing, 20 microsatellite primer sets were developed for B. alba. The markers were tested on one population of B. alba (30 individuals) and one pop...
Complex morphological and micromorphological studies have been made about bootjack bur (Bidens frondosa) growing on the territory of Krasnodar region. The lamina is dorsoventral type. conduction system has fasciations, three closed collateral bundles, are present near vein. leaf amphistomatic type, stomatic apparats in a small amount. Anticlinical walls main cells epidermis strongly flexuose. l...
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