Water fern

Ho, Y. S. Removal of copper ions from aqueous solution by tree fern. Water Research. 2003, 37,2323-2330. 

The water fern is unique in being the only known fern genus to associate symbioticaHy with a N -fixing cyanobacterium, Jinabaena a Uae. It is... 

Tu, S., Ma, L.Q., Fayiga, A.O., and Zillioux, E.J., Phytoremediation of arsenic-contaminated ground-water by the arsenic hyperaccumulating fern Pteris vittatah., International Journal of Phytoremediation, 6 (1), 35-47, 2004. 

Mukherjee, S. and Kumar, S., Adsorptive uptake of arsenic(V) from water by aquatic fern Salvinia natans, Journal of Water Supply Research and Technology—Aqua, 54 (1), 47-53, 2005. 

To improve process conditions and to obtain higher reaction rate, the water/oil ratio was studied. The influence of the oil/water ratio on separation and on the separation cost was studied employing R. erythropolis KA2-5-1 (deposited as FERN P-16277). The use of an oil/water ratio within the range of (3 1) to (8 1) was found to be optimum and was patented [127],... 

The use of Azolla Caroliniana dry fern in water depollution avoids the problems of plant acclimatization in different climate conditions or polluted water characteristics and the water re-pollution by toxics delivery from died fern maintained in water. 

The water fern (Salvinia auriculata Aublet) may cover irrigation ditches and obstruct machinery and has assumed pest proportions in Ceylon (48). A similar species (S. rotundifolia Willd.) has formed solid blankets over irrigation ditches and ponds in Puerto Rico. It is important in the breeding of the malaria vector in... 

In wetlands N2 fixation can occur in the water colnmn, in the aerobic water-soil interface, in the anaerobic soil bulk, in the rhizosphere, and on the leaves and stems of plants. Phototrophic bacteria in the water and at the water-soil interface are generally more important than non-photosynthetic, heterotrophic bacteria in the soil and on plant roots (Buresh et al, 1980 Roger 1996). The phototrophs comprise bacteria that are epiphytic on plants and cyanobacteria that are both free-living and epiphytic. A particularly favourable site for cyanobacteria is below the leaf surface of the water fern Azolla, which forms a very efficient symbiosis with the cyanobacterinm Anabaena azollae. This symbiosis and those in various leguminous plants have been exploited in traditional rice prodnction systems to sustain yields of 2 to 4 t ha of grain withont fertilizer for hnndreds of years. 

How do these ground cover plants, particularly the ferns, cause such strong interference with the establishment of black cherry seedlings Previous research at our laboratory has shown that black cherry seedling growth can be modulated by supplies of nutrients, particularly nitrogen and phosphorus (15), water (16), light (16,... 

Arsenic pentoxide is found to be effective in weed eradication thus New Zealand hard-fern may be destroyed by midsummer spraying in dry weather with a solution containing 1 lb. of As205 in 32 gallons of water,8 and effective control of acacia scrub or thorn bush has been obtained in South Africa by brushing the freshly cut stumps with a... 

When ferns appeared on earth, oxygen was introduced into the atmosphere. This brought about a dramatic change in the composition of the atmosphere. Oxygen changed methane to carbon dioxide and water and ammonia to nitrogen and water. Evolution of plants and animals helped to stabilize the atmosphere. The composition of the atmosphere has remained more or less the same for the last 2 billion years. 

Huang, J.W., Poynton, C.Y., Kochian, L.V. and Elless, M.P. (2004) Phytofiltration of arsenic from drinking water using arsenic-hyperaccumulating ferns. Environmental Science and Technology, 38(12), 3412-17. 

Burnett, W. C., Corbett, D. R., Schultz, M., Horwitz, E. P., Chiariza, R., Dietz, M., Thakkar, A., and Fern, M., Pre-concentration of actinide elements from soils and large volume water samples using extraction chromatography, J. Radio anal. Nucl. Chem., 226, 121-127, 1997. 

If you like, you can collect potassium carbonate the old way by leaching it from wood ashes (especially oak wood, grape vine, and fern ash.) This will give you something to do with all those ashes you clean out of your fireplace or woodstove. Just scoop them out and place them into a large plastic bucket. Pour clean water over them (tap water is fine) stir and let settle. Pour off the clear liquid from the top, filter and evaporate the water. Be careful, because it is quite caustic and can bum the skin and seriously injure your eyes. It is like lye (in fact it is lye) and they used to make soap this way. 

Hinokiflavone (biflavone) Rhus succedanea (Anacardiaceae), Araucaria bidwillii (Araucariaceae), Cycas revoluta (Cycadaceae), Cupressusfunebris,Juniperus macropoda (Cupressaceae), Podocarpus macrophyllus (Podocarpaceae), Selaginella tamariscina (water fern) (Selaginellaceae) cAMP PDF (HIV-1 RT)... 

---