منابع مشابه
More records of mosses from Dominican amber
Hypnum spec., Orthostichella cf. pentasticha, Syrrhopodon flexifolius and Porotrichum aff. substriatum are recorded from Dominican amber (c. 25 mio yrs. b.p.). The first two species were known before from Dominican amber, the last two are newly reported. Dominican amber is a rich source for fossil mosses from the Tertiary (Eocene to Pliocene), by the same time a chance for reconstruction of the...
متن کاملDetection, isolation, and characterization of acidophilic methanotrophs from Sphagnum mosses.
Sphagnum peatlands are important ecosystems in the methane cycle. Methane-oxidizing bacteria in these ecosystems serve as a methane filter and limit methane emissions. Yet little is known about the diversity and identity of the methanotrophs present in and on Sphagnum mosses of peatlands, and only a few isolates are known. The methanotrophic community in Sphagnum mosses, originating from a Dutc...
متن کاملdepth distribution of chernobyl derived 137cs: from monitoring to modeling
it is common in the literature to confront the measured 137cs depth profile with the analytical solution of 1d advection-dispersion equation (ade) calibrated for the time of sampling which is a pure transport model useful for undisturbed soils. the degree of accuracy is strongly associated to the soil texture. it has been proven that soil with high clay content can retain radiocesium better. mo...
متن کاملDesorption From Interstellar Ices
The desorption of molecular species from ice mantles back into the gas phase in molecular clouds results from a variety of very poorly understood processes. We have investigated three mechanisms; desorption resulting from H2 formation on grains, direct cosmic ray heating and cosmic ray induced photodesorption. Whilst qualitative differences exist between these processes (essentially deriving fr...
متن کاملMorphology of Mosses (Phylum Bryophyta)
With over 12,000 species recognized worldwide (M. R. Crosby et al. 1999), the Bryophyta, or mosses, are the most speciose of the three phyla of bryophytes. The other two phyla are Marchantiophyta or liverworts and Anthocerotophyta or hornworts. The term “bryophytes” is a general, inclusive term for these three groups though they are only superficially related. Mosses are widely distributed from...
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ژورنال
عنوان ژورنال: Journal of the Serbian Chemical Society
سال: 2002
ISSN: 0352-5139,1820-7421
DOI: 10.2298/jsc0209587d