3 documents found, page 1 of 1
Ecophysiological performance of a threatened shrub under restored and natural c...
Castro,Silvana A. B.; Sá,Camila E. M.; Mourão,Fabiana A.; Duarte,Heitor M.; Fernandes,G. Wilson; Lemos-Filho,José P.Ecophysiological responses of plants are useful for monitoring the success of ecological restoration projects that target species conservation. In this study we evaluated the ecophysiological traits of individuals of Chamaecrista semaphora from a natural population and from a site under restoration. Water potential and chlorophyll a fluorescence parameters were measured both in adult and young plants of the two...
Intraspecific variation of meroditerpenoids in the brown alga Stypopodium zonal...
Soares,Angelica R.; Duarte,Heitor M.; Tinnoco,Luzineide W.; Pereira,Renato C.; Teixeira,Valéria L.Abstract Intraspecific variation on meroditerpenoids production by the brown marine alga Stypopodium zonale at four different populations along the Brazilian coast was analyzed using Principal Component Analysis over high-performance liquid chromatography profiles from algae extracts. The ordination of the samples by the similarities of their chromatographic traits showed the existence of three chemotypes: (i) ...
Chemical diversity and antileishmanial activity of crude extracts of Laurencia ...
Machado,Fernanda L. da S.; Lima,Wallace P.; Duarte,Heitor M.; Rossi-Bergmann,Bartira; Gestinari,Lísia M.; Fujii,Mutue T.; Kaiser,Carlos R.Chemical profiles of extracts of four species from Laurencia complex (Ceramiales, Rhodophyta) from different populations collected along Southeast Brazilian coast were assessed by High Performance Liquid Chromatography coupled with a Diode Array Detector in order to observe geographic chemical variability. Aiming to evaluate the impact of chemical diversity on potential pharmaceutical uses, the extracts were te...