Contribution à l'étude de la végétation du grand bassin américain

During the winter of December, the studies I am pursuing on the phytogeography of the deserts of the Northern Hemisphere led me to travel through the southwest of Arizona, the great expanse of Gila Desert, which American geographers have called the "Gila Desert," but which European maps generally call the "Gila Desert." I have already determined elsewhere the principal plant formations found in this part of the Great Basin, and I will only briefly summarize my itinerary here before giving a list of the plants I was able to collect.

Titratable Acids in Opuntia ficus indica L.

Accumulation of acidity in spiny and spineless Opuntia joints jluctuated daily due to crassulacean acid metabolism (CAM) in Golan Height and coastal plain. The acidity reached higher concentrations in the young joints, especially during early morning hours, before the plants were exposed to sunlight. Changes in acidity were more pronounced in the chlorenchyma than in the water-accumulating tissues.

Coffee pulp accelerates early tropical forest succession on old fields

Applying nutrient-rich agricultural by-products, such as fruit peels and pulp, to degraded land has been proposed as a strategy to overcome a number of barriers to tropical forest recovery. While such linkages between agroindustry and restoration represent win–win scenarios, practical applications remain largely unexplored. In this case study, we tested coffee pulp as an amendment to catalyze forest succession on post-agricultural land in southern Costa Rica.

Antimicrobial Activity of Opuntia cochenillifera (L.) Mill Fruit and Cladode Extracts

In the present study the antimicrobial activity of chloroform and methanolic extracts of Opuntia cochenillifera for both cladode and fruits was investigated. Methanolic extract was found to be an effective against the microbes namely, E. coli, Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa Candida albican C.glabrata C.haemulonii C.Tropicalis. Maximum activity was observed against E. coli, B. Subtilis and, C.albican and C.glabrata at 40mg/ml. Agar well diffusion assay was used to determine minimum inhibitory concentration of all test microorganisms.

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