Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037853
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dc.contributor.authorBONONI, L.pt_BR
dc.contributor.authorVASCONCELLOS, R. L. F.pt_BR
dc.contributor.authorTAKETANI, R. G.pt_BR
dc.contributor.authorVILELA, E. S. D.pt_BR
dc.contributor.authorMOITINHO, M. A.pt_BR
dc.contributor.authorMELO, I. S. dept_BR
dc.date.accessioned2016-02-19T11:11:11Zpt_BR
dc.date.available2016-02-19T11:11:11Zpt_BR
dc.date.created2016-02-19pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationIn: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., Florianópolis. Anais... Florianópolis: Sociedade Brasileira de Microbiologia, 2015. Ref. 0973-1.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1037853pt_BR
dc.descriptionAbstract: The average global temperature has increased and will continue increasing, with forecast of up to 5.8° C by the end of this century as a result of the increase in the concentration of greenhouse gases in the atmosphere. Due to these increased temperature, some biomes may introduce features of arid and semi-arid environments in the coming years. The patterns of water availability in the soil can select groups of microorganisms with physiological strategies to tolerate these seasonal changes. Nutrient availability for plants becomes limited when the aqueous part of the soil is low in the dry period. On the other hand, in irrigated soils the concentration of nutrients available associated with mineralization increases rapidly. Environmental indicators such as seasonal variations in the enzymatic activity, the abundance of microorganisms and soil physical and chemical characteristics, are useful to measure and analyze the change of the functionality soil microbiota. This work was aimed to study the seasonal changes of enzymatic activity (dehydrogenase, acid phosphatase and alkaline, arylsulfatase, phytase, cellulase, amylase and urease) of microbial communities in soils of Caatinga and Atlantic Forest. The soils were collected in Bertioga-SP, Cananéia-SP, Juazeiro-BA and Petrolina-PE. The samples of soil were sifted and separated into 18 glass bottles of 200 mL containing 50 g of each soil. The bottles were incubated at 28° C varying moisture in 60% and 30% every 14 days corresponding to three seasonal cycles. The sequencing of 16S ribosomal RNA gene (rRNA) of samples was performed using the Ion Sequencing Kit 400 (Life Technologies). The dynamics of the bacterial communities had influences of seasonal changes, especially when compared the biogeographic patterns. The effect of moisture was significantly different (p < 0.05) only to the activity of alkaline phosphatase and phytase enzymes. The activity of all enzymes, except phytase, was important to discriminate the soils between Caatinga and Atlantic Forest biomes. Seasonality had an effect on the enzymatic activity that was related with the functional change in the soil microbiota.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectArid environmentspt_BR
dc.subjectSeasonalitypt_BR
dc.subjectSoil microbiotapt_BR
dc.titleChange in enzymatic activity of microbial communities on the seasonal differences in soils the of biomes caatinga and atlantic forest.pt_BR
dc.typeResumo em anais e proceedingspt_BR
dc.date.updated2016-04-15T11:11:11Zpt_BR
dc.subject.thesagroCaatingapt_BR
dc.subject.nalthesaurusDry environmental conditionspt_BR
dc.subject.nalthesaurusEnzyme activitypt_BR
dc.subject.nalthesaurusSoil microorganismspt_BR
riaa.ainfo.id1037853pt_BR
riaa.ainfo.lastupdate2016-04-15pt_BR
dc.contributor.institutionL. BONONI, ESALQ/USP; R. L. F. VASCONCELLOS; R. G. TAKETANI, Bolsista FAPESP; E. S. D. VILELA; M. A. MOITINHO, ESALQ/USP; ITAMAR SOARES DE MELO, CNPMA.pt_BR
Aparece nas coleções:Resumo em anais de congresso (CNPMA)

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