Depth analysis of fatty acids in two caribbean reef corals

Total fatty acid compositions of colonies of two hermatypic, reef-building corals collected during the day-time over a depth range of 21 m were determined to assess the effect of depth-related environmental factors upon the lipid content of these organisms. No systematic changes were found, suggesting a steady-state balance between algal and animal lipogenesis in these symbiotic partnerships. Stephanocoenia michelinii , a day and night feeder, contained lipids indicative of external dietary sources such as copepods, whereas Montastrea annularis , a night feeder, did not.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46632/1/227_2004_Article_BF00391131.pd

Nematóides das galhas dificultam a produção de mudas de jaborandi Root-knot nematodes restrains the seedling production of jaborandi

<abstract language="eng">The jaborandi (Pilocarpus microphyllus Starf.) is a medical plant found in Maranhão State, Brazil, which is the natural source of the drug pilocarpine used to treat glaucoma, a disease that frequently causes blindness. The leaves used for extraction of pilocarpine are presently collected from plants that grow naturally. Instead of pure extractive exploitation it has been tried the cultivation of this plant in order to improve and increase the production. Nevertheless, 90% of 160,000 young seedlings were lost due to the infestation of Meloidogyne incognita race 1. Research showed the soil as the source of infestation