No abstract

The Jatropha curcas species is a perennial plant and easy to manage, being cultivated in many countries because of its high content in oil and the lowest cost of production. This study had as objective to evaluate the injuries caused by the Pachycoris torridus in J. curcas seedlings. Thirty-four days after the planting, 30 J. curcas seedlings were covered with screens and submitted to herbivory of five bugs of the same sex. Morphological and physiological evaluations were conducted 65 days after planting. Seventy-three days after planting, 24 seedlings were submitted to herbivory, using the same methodology as the previous experiment with a quantitative differential of 10 bugs and a batch of 6 plants without insects (control). Evaluations were done 104 days after planting. Male adults (n = 5) of the P. torridus species caused a reduction in the growth and biomass increase in J. curcas seedlings 34 days after planting. After 30 days of herbivores, however the same injuries were not observed in seedlings with 73 days after planting. The injuries (34 days after planting) were considered mild and there was a decrease in the growth and in the biomass accumulation. Upon reaching 73 days after planting, the seedlings became more resistant to the attack of this pest, in such a way that as submitting them to twice the number of insects (n = 10), they did not negatively responded to the herbivory. Finally, the young seedlings were more susceptible to attack, even with low levels of infestation. The pest control should be done when there are signs of infestation at this stage.

RESUMOOs Processos Oxidativos Avançados destacam-se dentre as tecnologias de remediação de águas existentes como as mais amigáveis ao meio ambiente e aos recursos hídricos. Estes processos são muito promissores pela capacidade de produzir radicais hidroxila (•OH), espécies oxidantes fortes, capazes de mineralizar a matéria orgânica, a exemplo do Verde Malaquita, usado como modelo de contaminante para desenvolvimento de novas tecnologias de remediação de águas servidas. Com o objetivo de mapear o panorama científico e o tecnológico relativos ao uso de tratamento de águas, foram realizadas buscas de artigos científicos e de patentes nas bases Scielo, Scopus, INPI e Derwent. O estudo demonstrou que o maior número de depósitos de patentes é da China, ficando o Brasil no sexto lugar do ranking. Apesar do alto número de artigos e patentes em tratamento de efluentes, só uma parcela corresponde ao tema em interesse, com destaque de uma patente brasileira para um processo antimicrobiano e 58 artigos que utilizam o Verde Malaquita como modelo em seus estudos. Palavras-chave: Processos Oxidativos Avançados. Fenton. Eletroquímica ADVANCED OXIDATIVE PROCESSES IN THE TREATMENT OF MALACHITE GREEN:PROSPECTIVE STUDY ABSTRACT Advanced Oxidative Processes are ever considered for water remediation uses once its environmentally friendly character. These processes are very promising for the characteristic of producing hydroxyl radicals (• OH), an strong oxidizing species, capable of mineralizing organic matter, such as the Malachite Greengenerally used as a contaminant model for the development of new wastewater remediation technologies. The aim of this study is the mapping of the scientific and technological scenario related to the use of water treatment. Scielo, Scopus, INPI (Brazilian Patent Office) and Derwent databases were used to obtain scientific papers and patents. The study showed that the largest number of patent deposits by China, with Brazil ranked sixth. Despite the high number of articles and patents in effluent treatment, only a small part corresponds to the topic in interest, with emphasis on a Brazilian patent for an antimicrobial process, and 58 articles that use the Malachite Green as a model in their studies.