Several hypotheses are advanced for resource relationships among planktonic diatoms in African freshwater lakes that are consistent with the light and nutrient conditions of the lakes and the extant and fossil distributions of the diatom species in them. The hypotheses are all testable and are potentially powerful tools for interpreting past climatic conditions. A ranking is proposed along a Si...

Puccinellia is one of the plants with high performance in unfavourable soil conditions. Fourteen super genotypes developed by recurrent selection method were grown at three different sowing times order to characterize alkali grass for biological and agronomic traits determine relationships seed yield Aegean region Turkey 2020. The interaction between time was found be significant all traits. 14...

Puccinellia tenuiflora is an alkaline salt-tolerant monocot found in saline-alkali soil in China. To identify the genes which are determining the higher tolerance of P. tenuiflora compared to bicarbonate sensitive species, we examined the responses of P. tenuiflora and a related bicarbonate-sensitive Poeae plant, Poa annua, to two days of 20 mM NaHCO3 stress by RNA-seq analysis. We obtained 28 ...

The status of the vesiculariid ctenostome genus Amathia in New Zealand has been evaluated on the basis of all known material, including historic specimens in museums and those newly collected during formal surveillance of ports, harbours and vessels for possible alien species. Eight species are recognised, four of them new to science. Amathia gracei n. sp. and Amathia zealandica n. sp. are the ...

När covid-19-pandemin nådde Sverige mobiliserade kvinnojourerna snabbt eftersom de visste vad en nedstängning av samhället skulle kunna betyda för kvinnor och barn som lever under hot med våld i sina hem. På kort tid kom myndigheternas rekommendationer om att arbeta hemma, upprätthålla social distans undvika resor minska möjligheterna till rörlighet. Detta gjorde det särskilt svårt levde kontro...

The objective was to investigate effects of feeding lambs fresh versus dried Puccinellia. tenuiflora (Griesb.) Scribn. & Merr. on nutrient and water intake apparent digestibility. Twenty-four were offered or (48 hr) grass. dry matter (DM) content grass 65% the neutral detergent fiber exclude ash (aNDFom) 87% grass, whereas metabolizable energy concentration two forages similar. Lambs eating had...

Salinization has led to the deterioration of ecological environment, affected growth plants, and hindered development agriculture forestry. Arbuscular mycorrhizal (AM) fungi, as important soil microorganisms, play significant physiological roles in promoting plant nutrient absorption improving structure. Puccinellia tenuiflora (Turcz.) Scribn. et Merr. Songnen saline-alkaline grassland was sele...