نتایج جستجو برای: mosses

تعداد نتایج: 3087  

Journal: :Transactions of the Royal Society of South Africa 1914

Journal: :Acta Botanica Neerlandica 1966

Journal: :Shokubutsugaku Zasshi 1971

Journal: :Science 2006
Nils Cronberg Rayna Natcheva Katarina Hedlund

Among flowering plants, animals commonly act as pollinators. We showed that fertile moss shoots attract springtails and mites, which in turn carry moss sperm, thereby enhancing the fertilization process. Previously, fertilization of mosses was thought to depend on the capacity of individual sperm to swim through a continuous water layer. The role of microarthropods in moss fertilization resembl...

2006
Jan-Peter Frahm

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...

Journal: :Water 2022

In this paper, we present an analysis of the pollution surface water and air by heavy metals: Mn, Fe, Ni, Cu, Zn, Cd Pb in area smelter Ozimek (Opolskie Voivodeship, Poland). The marine algae Palmaria palmata was exposed Mała Panew River, three species forest mosses: Pleurozium schreberi, Sphagnum fallax Dicranum polysetum were also applied. Active biomonitoring carried out using P. schreberi m...

Journal: :Plant, cell & environment 2007
J C Douma M T VAN Wijk S I Lang G R Shaver

Water vapour and CO2 exchange were measured in moss-dominated vegetation using a gas analyser and a 0.3 x 0.3 m chamber at 17 sites near Abisko, Northern Sweden and 21 sites near Longyearbyen, Svalbard, to quantify the contribution of mosses to ecosystem level fluxes. With the help of a simple light-response model, we showed that the moss contribution to ecosystem carbon uptake varied between 1...

Journal: :Journal of radiation research 1999
M Ichimasa M Suzuki H Obayashi Y Sakuma Y Ichimasa

To quantify the rate of oxidation of tritium gas (referred to as HT) to tritiated water in the environment, various woody and herbaceous plant leaves and roots, mosses and lichens taken from a forest and fields in Ibaraki prefecture, and a forest in Toki, Gifu prefecture, were investigated as to their ability to oxidize atmospheric HT in in vitro experiments. The HT oxidation activity in vegeta...

Journal: :Journal of experimental botany 2001
U Heber N G Bukhov V A Shuvalov Y Kobayashi O L Lange

Experimental work on the control of photosystem II in the photosynthetic apparatus of higher plants, mosses and lichens is reviewed on a background of current literature. Transmembrane proton transport during photoassimilatory and photorespiratory electron flows is considered insufficient for producing the intrathylakoid acidification necessary for control of photosystem II activity under exces...

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