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Universidade de São Paulo (USP). Centro de Biologia Marinha (CEBIMAR) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Marcelo Visentini Kitahara in research grants and scholarships supported by FAPESP.
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Scleractinian zooxanthellate corals are responsible for the formation of coral reefs, one of the most productive and diverse ecosystems on the planet, which have been suffering from local and global anthropogenic impacts. The resilience capacity of a population facing these environmental stresses is directly related to their levels of genetic diversity. Population connectivity is one of t…
Covering less than 0.1% of the ocean flor, warm, shallow-water coral reefs are recognized for supporting over a quarter of the worlds' marine biodiversity and also for the critical ecosystem services they provide to human kind. Nonetheless, due to the ongoing climate change and other anthropogenic challenges, about 75% of the coral reefs are considered threatened, with several already sev…
In contrast to their shallow-water counterparts, azooxantines cold-water corals do not live in symbiosis with photosynthetic dinoflagellates. The South Atlantic holds numerous records of azooxantines species. These records encompass more than 60 species and grow under the influence of water masses originating in high northern and southern latitudes. These waters have very different proper…
Endeavoring to improve our understanding in scleractinian evolution as a lineage and as a system, the present proposal consists of two stages motivated to create and consolidate a research line on RNA/DNA deep sequencing and its usefulness at the Marine Science Department of the São Paulo Federal University (DCMar-UNIFESP). Based on the first azooxanthellate coral transcriptomes (1 specie…
Coral reefs are ecosystems mainly built by scleractinian corals, known for housing more than a quarter of marine biodiversity. These biogenic structures establish unique and complex ecological relationships. Agaricia fragilis is a species of the order Scleractinia found in different regions of the Western Atlantic, including the northeast coast of Brazil. To date, there is no data availab…
Climate change is an undeniable reality. The rise in ocean temperature, as well as its acidification, are among the primary stressors to the marine environment. It is widely recognized that corals are directly affected, as evidenced by the phenomenon of bleaching, which occurs when coral endosymbiotic microalgae are expelled by the host in response to thermal anomalies. Currently, a large…
Genetic diversity is an essential source for biodiversity, providing the raw material for evolution by natural selection. When interconnected, populations tend to preserve greater genetic diversity compared to more isolated populations, which in turn are more susceptible to genetic drift effects. In contrast, more isolated populations at the species' distribution limits have been identifi…
(Only some records are available in English at this moment)
The circadian rhythm is one of the primary cycles known to dictate the behavior and physiological processes of most forms of life, including corals, which have been shown to have profound fluctuations within a diel cycle. Regarding scleractinian corals, available information is limited in some aspects: (1) these cycles have been studied in only a few species; (2) most of those studies wer…
Environmental rhythms regulate the behavior and physiology of all living organisms. The most conspicuous rhythm is the light:dark cycle, regulating metabolic states, physiologic process, reproduction, and behavioral activities either by an endogenous circadian clock or as a simple response to light. The circadian clock mechanism as well as gene expression profiles are widely known for mod…
(Only some records are available in English at this moment)
Corals are holobionts associated with dinoflagellate algae and other microorganisms in a complex multi-partner interaction. The diversity of potential associations created by the physiological and metabolic capabilities of host and symbionts, and the dynamics of symbiont community play an essential role in the environmental adaptation of corals and may guide their geographic distribution.…
Environmental rhythms modulate the behavior and physiology of all living organisms and outcomes as cyclic phenotypes. The day/night cycle is the most noticeable cycle regulating a range of biological rhythms either by an endogenous circadian clock or by a direct response to the light:dark cycle itself. In Anthozoa, light can influence important physiological and behavioral responses, such…
Scleractinian corals are basal metazoans pertaining to the phylum Cnidaria, which are currently threatened by increasing global temperature and ocean acidification. These climate changes are associated with the loss of coral symbiotic algae (zooxanthellae), as well as to the dissolution of coral carbonatic skeleton. The evolutionary history of the order Scleractinia has not been completel…
| 2 / 2 | Ongoing grants |
| 2 / 2 | Completed research grants |
| 4 / 4 | Ongoing scholarships in Brazil |
| 7 / 7 | Completed scholarships in Brazil |
| 3 / 3 | Completed scholarships abroad |
| 18 / 18 | All research grants and scholarships |
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