The influence of UV radiation and high temperature on the carbon dioxide sequestration and microcystins production by Microcystis strains

• Grant number: 17/15769-9
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: October 10, 2018
• End date: April 09, 2019
• Field of knowledge: Biological Sciences - Ecology - Ecosystems Ecology
• Principal Investigator: Maria Do Carmo Bittencourt de Oliveira
• Grantee: Micheline Kézia Cordeiro de Araújo
• Supervisor: Miquel Franciscus Lucas Leonardus Wilhelmus Lurling
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Institution abroad: Wageningen University, Netherlands
• Associated to the scholarship: 15/17397-6 - CIRCADIAN RHYTHM IN THE PRODUCTION AND RELEASE OF MICROCYSTINS, EXPRESSION OF mcyE GENE AND PHYSIOLOGICAL STRESS IN CYANOBACTERIA: IMPLICATIONS OF GLOBAL CLIMATE CHANGES, BP.PD

Abstract

Temperature and UV radiation are important factors that regulate bloom forming cyanobacteria, cyanotoxins production and carbon dioxide (CO2) sequestration in aquatic ecosystems. Due to changing global climatic conditions, investigations of physiological during the production of microcystins and sequestration of CO2 are urgently needed. The aim of the proposed study is to evaluate the combined effects of increasing temperatures and UV radiation on changes in the CO2 sequestration during microcystins production and oxidative response of Microcystis strains. Experiments will be performed under controlled conditions, simulating climate change scenarios of high temperatures and UV radiation, while monitoring the CO2 sequestration during microcystins production at daily experiments. Samples will be collected at daily intervals during 8 and 6 days. The results from this study will contribute to unravelling some processes response to climate change conditions in microcystin-producing cyanobacteria.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CORDEIRO-ARAUJO, MICHELINE KEZIA; LORENZI, ADRIANA STURION; CHIA, MATHIAS AHII; MOTA, ELIANE CHRISTINA; BITTENCOURT-OLIVEIRA, MARIA DO CARMO. nsights into the impact of increasing temperature, light intensity, and UV-B exposure on the circadian rhythm of microcystin production and release, and the expression of mcy genes in the cyanobacterium Microcystis aeruginos. JOURNAL OF APPLIED PHYCOLOGY, v. 34, n. 1, NOV 2021. (13/15296-2, 17/15769-9, 15/17397-6, 14/01913-2)